TW200816627A - Transceiver and compound filter - Google Patents

Transceiver and compound filter Download PDF

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Publication number
TW200816627A
TW200816627A TW96133677A TW96133677A TW200816627A TW 200816627 A TW200816627 A TW 200816627A TW 96133677 A TW96133677 A TW 96133677A TW 96133677 A TW96133677 A TW 96133677A TW 200816627 A TW200816627 A TW 200816627A
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Taiwan
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phase
filter
output
low
input
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TW96133677A
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Chinese (zh)
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TWI348269B (en
Inventor
Yiping Fan
Chieh-Yuan Chao
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Crystalmedia Technology Inc
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40Circuits
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00Networks using active elements
    • H03H11/02Multiple-port networks
    • H03H11/04Frequency selective two-port networks
    • H03H2011/0494Complex filters

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transceivers (AREA)

Abstract

A transceiving system utilizing a shared filter module is provided. The shared filter module is selectively filtering signals in a first band in a first mode and a second band in a second mode. The first mode is a receiver mode whereas the second mode is a transmission mode. The shared filter module comprises a compound filter comprising two low pass filters and a coupling controller to manage input and output wiring of the low pass filters. When the coupling controller is enabled in the first mode, the compound filter acts as a bandpass filter. When the coupling controller is disabled, the compound filter acts as two independent low pass filters.

Description

200816627 九、發明說明: 【發明所屬之技術領域】 本發明係有關於應用在收發系統(transceiving system )中的分享式濾波器(shared filter),尤其是有關於 可彈性地切換於不同濾波頻寬的一種濾波器架構。 【先前技術】 在通&孔糸統中’濾波器的設計扮演了报重要的角 色。一個理想的接收裔通道滤波器可以藉由提升訊號雜 訊比(Signal to Noise Ratio,SNR)來減少訊號畸變,排除帶 外干板(out-of-band interference ) ’並將雜訊的頻寬限 縮在理想範圍内。然而減少訊號畸變的過程與減低雜訊 干擾的過程是難以兼顧的取捨問題,所以設計濾波器時 往往必須遷就現實。 第1圖係為先前技術的收發系統(transceiving system) 100。在接收模式時,低雜訊放大器(LNA) 1〇2 \ 接收並放大射頻内送訊號RFIN,接著混波器1〇4i和i〇4q 为別產生同相和正父此波結果#Πη和,並由低通濾 波裔(LPF) 1061和106Q進行低通濾波。所產生的濾波 結果RXI和RXQ接著送至類比數位轉換器(ADC )(未 圖示)進行後續的處理。相對的,在傳送模式時,外送 基頻訊號TXI和TXQ分別輸入至低通濾波器11〇1和 110Q,產生的濾波結果#IOUT *#q〇ut接著在升頻混波 器1121和112Q中進行升頻,而可變增益放大器 114對 0758E-A32549TWF;CMTI-06-006;Yeatsluo 6 200816627 這些升頻結果進行增益調,由功率放大器ιΐ6進行 功率放大而成為射頻外送訊號RF0UT供無線傳送。 在低通濾波器1061,i〇6q , 11〇1和u〇Q中,最重 要的參數就是過濾'頻寬。在典型的通訊系統中,低通漁 ϊ器T和11〇Q需要具有比⑽Q和,Q還寬的; ^但疋,不同頻寬參數的濾、波器做在—個收發系統中 :產生-些冗餘。如此造成晶片面積和成本上不小的耗 費,對於大部份要求輕便和省電的3C產品而言是一種不 利的因素。有鑑於此’為了減少收發系統中重複元件, 濾、波杰架構的改良是有迫切必要性的。 【發明内容】 有鑑於此,本發明能更有效地利用重覆元件,並且 降低系統的成本。 本|明提出-種收發系統,可解調射㈣送訊號以 =取内送資料,並將外送資料調變為射頻外送訊號。並 二包含,享式濾、波模組,可選擇性地運作於第—模式和 弟一板式’各用以過濟第_相命』— ^頻見和第二頻寬的訊號。 :氣且可在第一模式中將射頻内送訊號解調變而產生 弟-“結果,並將第—解調結果傳送至分享式淚波模 組進行過濾,以產生第一頻宽& Μ "、 乐y貝旯的弟—過濾結果。第一基 ί可在Ϊ—模式中將第—過渡結果數位化,以產生 内=貝枓:第二基頻模組可在第二模式中將外送資料類 比化,以產生外送基頻訊號,並將外送基頻訊號送至分 0758E-A32549TWF;CMTI-06-006;Yeatsluo 200816627 -子式濾波模組進行過濾,以產生 變,以產生射頻外送訊號。 亡、、、。果進行調 另-實施例揭露的一種組合式濾波器… _目雨入^ ’正父輸入端’同相輸出端;,以及正交輪二同 同相低通濾波器的輸入端耦接同相輸入端:而。 入炉,而甘认 乂低通濾波為的輸入端耦接正交輪 *而-輸出端耦接正交輸出端’ 含_控制器可用以切換同相/正交/輪入二: 正交輸出 ΐ 線控制器將同相輸入端輕接至 相::Γ 相輸出賴至正交輸入端,使同 哭=ΐ器和正交觸波器互相輕接形成帶通濾波 繼ί!:模式中,配線控制器關閉’藉此使同相低 心叩σ 乂低通濾波器互相隔離,各自獨立運作。 在另種組合式濾、波器的實施例中’複數個濾、波單 :%以形成階梯結構,而每一濾波單元包含同相低通 慮波交低通遽波器,第一配線控制器以及第二配 線控制器。在該等濾波單元的串聯中,前一同相低通濾 =器的=一輸出端連接下一同相低通濾波器的第一輸入 立而而别一正父低通濾波器的第二輸出端連接下一正交 ,通遽波為的第二輸入端。最前一個同相低通遽波器的 ^一輸入端即為同相輸入端,而最前一個正交低通濾波 °°的第—輸入端即為正交輸入端。最後一個同相低通濾 波σσ的第一輸出端即為同相輸出端,而最後一個正交低 〇758E-A32549TWF;CMTI-〇6-〇〇6;Yeatsluo 200816627 -通濾波器的第二輪出ά山PD达 收模式中,第-和第二\=正交輸出端。運作時,在接 合式濾波n成為帶通、被啟動,藉此使組 第二配線控制器; 波單元更:;f:广種組合式濾波器亦是以複數個滹 二成階梯結構,而每-濾波單元包含第f f放大器串接於同相通道上,以及第二操作放^串 Γ正交通道上,各包含—對差動輸人端和-對差= ,。第一配線控制器控制第-操作放大器的負輪1 輪 :弟-#作放大器的負輸出端的減狀態,而第二配: 益控制第—操作放大器的正輸人端和第二操作放大 =的正,出端的_狀態。第三配線控制器控制第 :套:”的正輸出端和第二操作放大器的正輸入端的二 触:。第四配線控制器控制第一操作放大器 = 端和第二操作放大器的負輸入端的輕接狀態。在接: 式中,第一、第二、第三和第四配線控制器皆被^輪 ,此使組合式濾波器成為帶通濾波器。在傳送模式中,’ 第―、第二、第三和第四配線控制器皆被關閉,、藉此伟 組合式濾波器成為兩個獨立的低通濾波器。 "吏 本發明提供的收發系統及組合式濾波器減 元件,使得生產成本降低。 重设 【實施方式】 〇758E-A32549TWF;CMTI-06-006;Yeatsluo 9 200816627 • τ列貫施例具體的說明如何以較佳的方式實現本 明。實施例僅供說明-般應用的方式,而非用以限、财 發明的範圍。實際範圍以申請專利範圍所列為準。 第2圖係為本發明之收發系統2〇〇的實施例,收發 系統200包含分享式濾波榉組21〇以供資料接收和傳‘ 共同使用。不同於先前技術之第2圖中的低通滹波哭 觀,1G6Q,⑽和11QQ,本實施觸分享式濾波模組 210可/共傳送和接收模式共同使用。解調模絚2〇2中包含 了與第1圖功能相同的低雜訊放大器1〇2,混波器 和104Q。在接收模式時,解調模組2〇2接收射頻内送訊 號(mbcnmd RF slgnal)RFIN,而產生的混波結果#im和 #Qm分別傳送至分享式濾、波模組21〇。接著分享式濾波 模組210輸出濾波結果RXI和RXQ至基頻模組220供進 步的處理。更具體地說,該基頻模組220中可包含可 、交增ϋ放大态2221和222Q,對濾波結果RXi和RXq各 別進打增益調整。而類比數位轉換器2241和224Q各別 耦接可變增益放大器2221和222Q,用以對應地產生數位 貝料DI和DQ。在發射器部份,基頻模組23〇中包含了 數位類比轉換器2321和232Q,可將數位資料DI和DQ 轉換為外送基頻訊號TXI和TXQ。當收發系統200運作 於傳送模式時,基頻模組230將外送基頻訊號TXI和TXQ 傳运至分旱式濾波模組210,使之輸出濾波結果#I〇ut和 #Q〇ut至射頻模組2〇4進行調變。射頻模組2〇4中包含和 第1圖相同的升頻混波器1121和112Q,可變增益放大器 〇758E-A32549TWF;CMTI-〇6-〇〇6;Yeatsluo 10 200816627 • n4和功率放大器116’在其中完成相混波和功率放大 等程序以產生可供發射的射頻外送訊號(〇utb〇und rf sign雄剛丁。分享式濾波模組21〇的詳細實施例將在 下列說明中揭露。 第3圖係為分享式濾波模組21〇之實施例。在分享 式濾波模組210中使甩四個選擇器3i〇i,3i〇q,32讥和 320Q來紋不同模式下的資料傳送路徑,而低通遽波器 3〇21和302Q可供傳送模式和接收模式共同使用。所謂直 接轉換(direct conversion )發射器又稱為零中頻(冗⑽ Intermediate Frequency ’ ZIF)發射器,如果是應用在分 日守夕工存取(TDMA )通讯系統如無線網路(IEEE 8〇2.工工) 或藍芽通訊,其傳送和發射所使用的頻寬參數是不__樣 的。舉例來δ兒,接收态端所需要的是9MHz的濾波器, 而發射器端需要的是11MHz的濾波器。因為傳^和接收 並不會同時發生,所以可用一個校準單元33〇來調整低 通濾波益3021和302Q的頻寬,使低通濾波器3〇21和 、302Q同時在兩種模式下都適用。調整的方法是改變低通 濾波器3021和302Q中的RC電路之時間常數。有一種先 前技術現有技術的做法是提供一組所謂的電容器組 (capacitor bank)電路,藉由簡單的短路和開路機制使濾波 器的頻寬增加或減少。上述頻寬調整是藉由對電容器組 中特定的各個電容切換來達到使濾波器的頻寬發生變 化,具體的實施例可參考發明名稱為” SHARED REzCEIVER AND TRANSMITTER FILTER” 、公開號為 0758E-A32549TWF;CMTI-06-006;Yeatsluo 11 200816627 2007/0040605 A1的美國專利申請。200816627 IX. Description of the Invention: [Technical Field] The present invention relates to a shared filter applied in a transceiving system, and more particularly to elastically switching to different filter bandwidths A filter architecture. [Prior Art] The design of the filter in the & aperture system plays an important role. An ideal receiver channel filter can reduce signal distortion by increasing the Signal to Noise Ratio (SNR), eliminating out-of-band interference and limiting the bandwidth of the noise. Shrink in the ideal range. However, the process of reducing signal distortion and the process of reducing noise interference are difficult to balance, so it is often necessary to design the filter to be realistic. Figure 1 is a prior art transceiving system 100. In the receive mode, the low noise amplifier (LNA) 1〇2 \ receives and amplifies the RF in-band signal RFIN, and then the mixers 1〇4i and i〇4q generate the in-phase and positive-in-one results #Πη和, and Low pass filtering is performed by Low Pass Filtering (LPF) 1061 and 106Q. The resulting filtered results, RXI and RXQ, are then sent to an analog-to-digital converter (ADC) (not shown) for subsequent processing. In contrast, in the transmission mode, the external base signal TXI and TXQ are respectively input to the low pass filters 11〇1 and 110Q, and the generated filter result #IOUT*#q〇ut is then applied to the upconverters 1121 and 112Q. The up-conversion is performed, and the variable gain amplifier 114 performs gain adjustment on the up-converting result of the 0758E-A32549TWF; CMTI-06-006; Yeatsluo 6 200816627, and is amplified by the power amplifier ιΐ6 to become the RF outgoing signal RF0UT for wireless transmission. . Among the low pass filters 1061, i〇6q, 11〇1 and u〇Q, the most important parameter is the filtering 'bandwidth'. In a typical communication system, the low-pass fishing rods T and 11〇Q need to have a wider ratio than (10)Q and Q; ^However, filters and filters with different bandwidth parameters are used in a transceiver system: - Some redundancy. This has resulted in a significant amount of wafer area and cost, which is an unfavorable factor for most 3C products that require light and power savings. In view of this, in order to reduce the repetitive components in the transceiver system, it is urgent to improve the filtering and Boj architecture. SUMMARY OF THE INVENTION In view of the above, the present invention can more effectively utilize repetitive components and reduce the cost of the system. This is a kind of transceiver system that can demodulate the shot (4) to send the signal to = to take the data, and to adjust the outgoing data to the RF signal. And two, the enjoyable filter, wave module, can selectively operate in the first mode and the brother-in-one type "for each of the _ phase" - frequency and second bandwidth signal. The gas can be demodulated in the first mode to generate a dim-"result, and the first demodulation result is transmitted to the shared tear wave module for filtering to generate the first bandwidth & Μ ", Le y Belle's brother - filtering results. The first base ί can digitize the first transition result in the Ϊ-mode to generate the inner = shell: the second fundamental frequency module can be in the second mode The Chinese company will compare the outgoing data to generate the external baseband signal, and send the external baseband signal to the 0758E-A32549TWF; CMTI-06-006; Yeatsluo 200816627 - the sub-filter module to filter In order to generate a radio frequency outgoing signal. Death, ,, and fruit adjustment - a combined filter disclosed in the embodiment ... _ eye rain into ^ 'father input terminal' non-inverting output; The input end of the in-phase low-pass filter is coupled to the non-inverting input terminal: and is input into the furnace, and the input end of the low-pass filter is coupled to the orthogonal wheel* and the output end is coupled to the quadrature output terminal. Can be used to switch in-phase / quadrature / wheel-in 2: quadrature output ΐ line controller will be connected to the non-inverting input To phase:: Γ phase output depends on the quadrature input terminal, so that the same crying and 正交 和 正交 正交 正交 正交 正交 形成 形成 形成 : : : : : : : : : : : : : : : : : : : : : : : : : : The 叩 叩 乂 low-pass filters are isolated from each other and operate independently. In another embodiment of the combined filter and waver, 'a plurality of filters, waves: % to form a stepped structure, and each filter unit contains a low phase Considering the wave crossing low pass chopper, the first wiring controller and the second wiring controller. In the series connection of the filtering units, the = one output of the previous in-phase low pass filter = connected to the next in-phase low pass The first input of the filter is connected and the second output of the other parent low-pass filter is connected to the next orthogonal, the second input of the pass-through wave. The first input of the in-phase low-pass chopper The end is the non-inverting input, and the first input of the first orthogonal low-pass filter °° is the quadrature input. The first output of the last in-phase low-pass filter σσ is the non-inverting output, and the last one Orthogonal low 〇758E-A32549TWF; CMTI-〇6-〇〇6; Yeatsluo 2008 In the second round of the 16627-pass filter, the first and second \=orthogonal outputs are in the PD-to-receive mode. During operation, the junction filter n becomes bandpass and is activated, thereby making the group Two wiring controller; wave unit more:; f: a wide variety of combined filters are also a plurality of two-step ladder structure, and each filter unit includes a ff amplifier connected in series on the in-phase channel, and a second operation ^ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ State, and the second match: Benefit Control - Operational amplifier's positive input and second operation amplification = positive, outgoing _ state. The third wiring controller controls the second: the positive output of the set: and the positive input of the second operational amplifier: the fourth wiring controller controls the light of the first operational amplifier = the negative input of the terminal and the second operational amplifier In the connection mode, the first, second, third, and fourth wiring controllers are all rounded, which makes the combined filter a band pass filter. In the transmission mode, 'the first, the first 2. The third and fourth wiring controllers are all turned off, and the composite filter is used as two independent low-pass filters. The present invention provides a transceiver system and a combined filter subtracting component. Production cost is reduced. Reset [Embodiment] 〇758E-A32549TWF; CMTI-06-006; Yeatsluo 9 200816627 • τ listed examples specifically explain how to achieve the present invention in a better way. The application is not intended to limit the scope of the invention. The actual scope is based on the scope of the patent application. FIG. 2 is an embodiment of the transceiver system 2 of the present invention, and the transceiver system 200 includes shared filtering.榉Group 21〇 For data reception and transmission 'common use. Different from the low-pass chopping view, 1G6Q, (10) and 11QQ in the second figure of the prior art, the implementation touch sharing filter module 210 can be used together with the common transmission and reception modes. The demodulation module 〇2〇2 includes the same low noise amplifier 1〇2, mixer and 104Q as in Fig. 1. In the receiving mode, the demodulation module 2〇2 receives the RF internal signal ( Mbcnmd RF slgnal)RFIN, and the generated mixing results #im and #Qm are respectively transmitted to the shared filter and wave module 21〇. Then, the shared filter module 210 outputs the filtered results RXI and RXQ to the baseband module 220. More specifically, the baseband module 220 can include the scalable, enhanced states 2221 and 222Q, and the gain adjustments for the filtered results RXi and RXq, respectively, and the analog digital converters 2241 and 224Q. Each of the variable gain amplifiers 2221 and 222Q is coupled to generate digital doping DI and DQ correspondingly. In the transmitter portion, the baseband module 23A includes digital analog converters 2321 and 232Q, which can be digitally digitized. Data DI and DQ are converted to external baseband signals TXI and TXQ. When the 200 operates in the transmission mode, the baseband module 230 transmits the external baseband signals TXI and TXQ to the dry filter module 210, and outputs the filtered results #I〇ut and #Q〇ut to the RF module. 2〇4 is modulated. The RF module 2〇4 contains the same up-converter mixers 1121 and 112Q as in Figure 1, variable gain amplifier 〇758E-A32549TWF; CMTI-〇6-〇〇6; Yeatsluo 10 200816627 • n4 and power amplifier 116' perform procedures such as phase mixing and power amplification to generate RF transmit signals for transmission (〇utb〇und rf sign). A detailed embodiment of the shared filter module 21A will be disclosed in the following description. Figure 3 is an embodiment of a shared filter module 21A. In the sharing filter module 210, the four selectors 3i〇i, 3i〇q, 32讥 and 320Q are used to pattern the data transmission paths in different modes, and the low-pass choppers 3〇21 and 302Q are available for transmission. The mode is used in conjunction with the receive mode. The so-called direct conversion transmitter is also known as the zero-IF (Z) Intermediate Frequency 'ZIF' transmitter, if it is applied to a TDMA communication system such as a wireless network (IEEE 8〇). 2. Workers) or Bluetooth communication, the bandwidth parameters used for transmission and transmission are not __like. For example, for the delta, the 9MHz filter is required for the receiving state, and the 11MHz filter is required for the transmitter. Since the transmission and reception do not occur at the same time, a calibration unit 33〇 can be used to adjust the bandwidth of the low-pass filter benefits 3021 and 302Q, so that the low-pass filters 3〇21 and 302Q are applicable in both modes simultaneously. . The adjustment method is to change the time constant of the RC circuit in the low pass filters 3021 and 302Q. One prior art practice is to provide a set of so-called capacitor bank circuits that increase or decrease the bandwidth of the filter by simple short circuit and open circuit mechanisms. The above-mentioned bandwidth adjustment is to change the bandwidth of the filter by switching the specific capacitors in the capacitor bank. For the specific embodiment, refer to the invention titled "SHARED REzCEIVER AND TRANSMITTER FILTER" and the publication number is 0758E-A32549TWF. US Patent Application CMTI-06-006; Yeatsluo 11 200816627 2007/0040605 A1.

§刀子式)慮波模組210運作於接收模式,選擇哭 3101,3201, 310Q和320Q中的開關切換至節點M1以建 立通路,使混波結果#Iin和#Qin從解調模級202傳送至 低通濾波為3021和302Q ’而低通濾、波器3Q2I和302Q的 濾波結果RXI和RXQ則做為内送基頻訊號傳送至基頻模 組220。相反地,當分享式濾波模組21〇運作於傳送模式 時,選擇器3101,3201,310Q和320Q中的開關切換至 另一立而’建立經由郎點M2的通路,使數位類比轉化模組 230產生的外送基頻訊號TXI和TXQ分別進入低通濾波 為3021和302Q進行渡波後輸出至射頻模組2〇4(第2 圖)。如前述,校準單元330同時調整低通遽波器3〇21 和302Q的頻寬參數以符合每個模式的需求。如此的遽波 為分旱式架構可提供很多優點,包含減少元件的數量和 成本。而接下來的貫施例更提出進一步的改良。 第4圖係為一個依據本發明的分享式濾波模组4〇〇 的實施例,其中更進一步改良了分享式濾波模組21〇,將 低通濾波器3021和302Q由組合式濾波器4丨〇所取代。 該組合式濾波器410包含低通濾波器4〇21及4〇2q和配 線控制器404。低通濾波器4〇21及4〇2Q基本上和低通遽 波器3021及302Q相同,但是配線控制器4〇4進二步= 供了 一種隨模式改變的彈性耦接功能。低通遽波器 和402Q的輸出入端與輸出端(節點finI · louti ’ finQ 和 foutQ)皆與配線控制器404相接,當分哀—、、舍、^ 文田77予式濾波模組4〇〇 〇758E-A32549TWF;CMTI-06-006;Yeatslao 12 200816627 運:於傳减式時,配線控㈣4G4是關閉的。如 通遽波器彻和4Q2q兩者互不相接,獨立運作处 如同低通濾波器3021和30川。相對的,當分享式二 接,模式時,配線控制器404是開啟的果 p ΐη連接郎點f_Q,而節點finQ連接節點f〇uti, ! 交叉_的架構。事實上這種狀態下.的組合式 濾波益410即等效於帶通遽波器。由此可見,本實施 所提出的架構以低廉的成本有效地同時滿中 收器和零中頻發射器的需求。除此之外,組合式遽^ 7仍然可猎由前述的校準單元33()對低通濾波器侧 402Q中的¥間常數進行調整來滿足各種可能的頻寬 :求。校準單元_搭配配線控制器4G4的交叉輕接功 月匕’也可以反過來實作低中頻發射器加零令頻接收哭。 所以本架構的優點不止是降低成本,頻寬組合的方^也 可以很有彈性,不限定本實施例所述。 第5圖係為第4圖中組合式濾波器410的另一實施 幻採用的疋種階梯架構(ladder structure),包含福 數個濾、波單兀51G串聯在—起。每—濾波單元51〇中包 含低通濾波器4021和402Q,以及配線控制器4〇4。低通 4波器4021的輸入和輸出節點分別是P1和P2,而低通 遽波器402Q的輸入和輪出節點分別是p3和p4。配線控 制為404具體上包含了第—配線控制器5Q2和第二配線 控制為504 ’丨中第—配線控制器502負責切換節點P1 f P4之間的&通狀態’而第二配線控制器$⑽負責切換 〇758E-A32549TWF;CMTI>〇6.〇〇6;Yeatsluo 13 200816627 k 即點P2與P3之間的導通狀態。當收發系統2〇〇運作於 接收模式時’第一配線控制器5〇2和第二配線控制器5〇4 同枯開啟,將其負責的對應節點導通,藉此濾波單元5 1〇 轉艾為f通濾波器,而整個收發系統200在結構上即成 為一個低中頻接收器。相對的,當收發系統2〇〇運作於 傳达核式時’第一配線控制器5〇2和第二配線控制器5〇4 白被關閉此日寸,可以發現由節點Fini到節點fouti之間 所有的低通濾波器4021構聯成一個三階的低通濾波器。 同樣地,由節點finQ到f〇mQ之間所有的低通濾波器 402Q/也構成另一個獨立的三階低通濾波器。如此一來, 收,:系、統200㉛成為一個直接轉換發射器。如果是應用 在孤芽通晟上,低通濾波器4〇21和低通濾波器4⑽卩可 =汉^十成在中心頻率h6MHz運作,具有15MHz的頻 見j第5圖雖然沒有顯示校準單元33〇,但本實施例仍然 可以知用忒杈準單元33〇來彈性地調整低通濾波器4⑽卩 和4〇2Q巾的時間常數,使頻寬符合各種可能的需求。 ―第6圖係為第5圖中遽波單元51()的具體實施例。 乐5圖中所述的低通濾波器彻和術Q可以是由操作 6021和602Q搭酉己RC電路(未圖示)組成,各自 的於R相通道或正交通道上。操作放大器6(m和602Q 入:口輸出端皆為差動對,對應的輸入輸出端表示為 摔作放大口,/2+,Ρ2_,Ρ3+,Ρ3-,Ρ4+#ϋΡ4—1«. 60 " 1 ^ 的心和以-對應地稱接下一個操作放大器續的 ^58E-A32549TWF;CMTI-06-006;Yeatsluo 14 200816627 .和P1-。四個配線控制器5〇2a,5〇2b,5心和5〇μ 對錢㈣_通道和正交料_接㈣。每一配線 控制益包含電阻和開M,如圖所示,電阻Ra,处,^ f 和如,以及開關sw卜SW2,SW3和SW4。配線控制器 502a負貝旱官扪-和队之間的叙接狀態^己線控制器 5〇2b負責Pl+到P4+,配線控制器5〇4a負責仏到μ 而配線控制器5〇4b負責Ρ2+到ρ3+。本實施例中的 開關是同時被開啟或關閉的。當該些開關開啟時 早兀510形成帶通濾波器,其頻寬由&〇時間常數決定。 相反地,當所有開關關閉時,操作放大器的U和 各自扮演-個獨立的低通遽波器,亦運作於由r c時 =定的頻寬。電阻Ra,Rb,以和Rd係為根據所庫用 的乾圍而彈性選擇的值,在本發明中不設限制。〜用 雖然本發明以較佳實施例說明如上,但可以理 是本發明的範圍未必如此限I相對的,任何基 勺 精神或對習知技術者為顯而易見的改良皆在本發明Ή 範圍内。因此專利要求範圍必須以最廣義的方式解^皿 【圖式簡單說明】 第1圖係為先前技術的收發系統1 00。 第2圖係為本發明收發系統的實施例,包含分古 遽波模組同時供傳送和接收使用。 刀予式 第3圖係為第2圖中分享式濾波模組的第一實施例。 第4圖係為第2圖中分享式濾波模組的第二實 〇758E-A32549TWF;CMTI-〇6-〇〇6;Yeatsluo 200816627 . 第5圖係為第4圖中組合式濾波器的另一實施例。 第6圖係為第5圖中濾波單元的實施例。 【主要元件符號說明】 100〜收發系統; 102〜低雜訊放大器; 1041,104Q,1121,112Q〜混波器; 1061,106Q,1101,110Q〜低通濾波器; 114〜可變增益放大器; 116〜功率放大器; , 200〜收發系統; 202〜解調模組; 2〇4〜射頻模組; 210〜分享式濾波模組; 220,230〜基頻模組; 2221,222Q〜可變增益放大器; 2241,224Q〜類比數位轉換器; 2321,232Q〜數位類比轉換器; 3101,310Q,3201,320Q〜選擇器; 3021,302Q〜低通濾波器; I 330〜校準單元; 400〜收發系統; 410〜組合式濾波器; 4021,402Q〜組合式濾波器; 404〜配線控制器; 510〜濾波單元; 502〜第一配線控制器;504〜第二配線控制器; 6021,602Q〜操作放大器; 502a,502b,502c,502d〜配線控制器。 0758E-A32549TWF;CMTI-06-006;Yeatsluo 16§ Knife-type) The wave filter module 210 operates in the receiving mode, and switches in the crying 3101, 3201, 310Q, and 320Q are switched to the node M1 to establish a path, and the mixing results #Iin and #Qin are transmitted from the demodulating mode stage 202. The low pass filter is 3021 and 302Q' and the low pass filter, filter 3Q2I and 302Q filter results RXI and RXQ are transmitted as the internal baseband signal to the baseband module 220. Conversely, when the shared filter module 21 is operating in the transfer mode, the switches in the selectors 3101, 3201, 310Q, and 320Q are switched to another stand and 'establish a path through the point M2, so that the digital analog conversion module The external baseband signals TXI and TXQ generated by 230 are respectively subjected to low-pass filtering for 3021 and 302Q, and then output to the RF module 2〇4 (Fig. 2). As before, the calibration unit 330 simultaneously adjusts the bandwidth parameters of the low pass choppers 3〇21 and 302Q to meet the requirements of each mode. Such chopping offers many advantages for a dry-type architecture, including reducing the number and cost of components. The following examples further suggest further improvements. Figure 4 is an embodiment of a shared filter module 4A according to the present invention, wherein the shared filter module 21 is further improved, and the low pass filters 3021 and 302Q are combined by the combined filter 4 Replaced by 〇. The combined filter 410 includes low pass filters 4〇21 and 4〇2q and a distribution controller 404. The low pass filters 4〇21 and 4〇2Q are basically the same as the low pass choppers 3021 and 302Q, but the wiring controller 4〇4 goes into two steps = providing an elastic coupling function that changes with mode. The low-pass chopper and the output and output terminals of the 402Q (nodes finI · louti 'finQ and foutQ) are connected to the wiring controller 404, when the sorrow-,,,, ^, Wentian 77 pre-filter module 4 〇〇〇758E-A32549TWF;CMTI-06-006;Yeatslao 12 200816627 Transportation: When transmitting and subtracting, the wiring control (4) 4G4 is closed. For example, the pass-through filter and the 4Q2q are not connected to each other, and the independent operation is like the low-pass filters 3021 and 30. In contrast, when sharing the mode, the wiring controller 404 is turned on, and the node finQ is connected to the node f〇uti, ! In fact, the combined filter benefit 410 in this state is equivalent to a bandpass chopper. It can be seen that the architecture proposed by the present embodiment effectively simultaneously satisfies the requirements of a full receiver and a zero intermediate frequency transmitter at a low cost. In addition to this, the combined 遽^7 can still be calibrated by the aforementioned calibration unit 33() to adjust the inter-¥ constant in the low-pass filter side 402Q to satisfy various possible bandwidths: The calibration unit _ with the wiring controller 4G4 cross-lighting work 匕 也 can also be implemented as a low-IF transmitter plus zero-frequency reception cry. Therefore, the advantage of the architecture is not only the cost reduction, but also the flexibility of the bandwidth combination, which is not limited to the embodiment. Fig. 5 is a ladder structure of another implementation of the combined filter 410 of Fig. 4, including a plurality of filters, and a wave unit 51G connected in series. Each of the filtering units 51A includes low pass filters 4021 and 402Q, and a wiring controller 4〇4. The input and output nodes of the low pass 4 waver 4021 are P1 and P2, respectively, and the input and turn nodes of the low pass chopper 402Q are p3 and p4, respectively. The wiring control 404 specifically includes the first wiring controller 5Q2 and the second wiring control 504', the first wiring controller 502 is responsible for switching the & pass state between the nodes P1 f P4 and the second wiring controller $(10) is responsible for switching 〇758E-A32549TWF; CMTI>〇6.〇〇6;Yeatsluo 13 200816627 k is the conduction state between points P2 and P3. When the transceiver system 2 is operating in the receiving mode, the first wiring controller 5〇2 and the second wiring controller 5〇4 are turned on, and the corresponding node responsible for it is turned on, whereby the filtering unit 5 1 turns to the vicinity It is a f-pass filter, and the entire transceiver system 200 is structurally a low-IF receiver. In contrast, when the transceiver system 2 is operating in the communication mode, the first wiring controller 5〇2 and the second wiring controller 5〇4 are turned off this day, and it can be found that the node Fini to the node fouti All of the low pass filters 4021 are combined into a third order low pass filter. Similarly, all low pass filters 402Q/ between nodes finQ through f〇mQ also form another independent third order low pass filter. In this way, the collection, system: 20031 becomes a direct conversion transmitter. If it is applied to the orphaned pass, the low-pass filter 4〇21 and the low-pass filter 4(10) can be operated at the center frequency h6MHz, with a frequency of 15MHz. Figure 5 shows that the calibration unit is not shown. 33〇, but it is still known in the present embodiment that the time constant of the low-pass filter 4(10)卩 and the 4〇2Q towel is elastically adjusted by the reference unit 33〇 so that the bandwidth meets various possible requirements. - Fig. 6 is a specific embodiment of the chopper unit 51() in Fig. 5. The low pass filter and Q described in the Le 5 diagram may be composed of operations 6021 and 602Q RC circuits (not shown), each on an R phase channel or an orthogonal channel. Operation amplifier 6 (m and 602Q input: the output terminals are all differential pairs, the corresponding input and output terminals are represented as falling amplification ports, /2+, Ρ2_, Ρ3+, Ρ3-, Ρ4+#ϋΡ4—1«. 60 &quot 1 ^ The heart and - correspondingly the next operational amplifier continued ^58E-A32549TWF; CMTI-06-006; Yeatsluo 14 200816627 . and P1-. Four wiring controllers 5〇2a, 5〇2b, 5 hearts and 5 〇 μ pairs of money (four) _ channel and Orthogonal material _ connected (four). Each wiring control benefits include resistance and open M, as shown, resistance Ra, where, ^ f and as, and switch sw SW2 , SW3 and SW4. The wiring controller 502a is negatively linked to the official position of the team and the team. The line controller 5〇2b is responsible for Pl+ to P4+, and the wiring controller 5〇4a is responsible for the wiring controller. 5〇4b is responsible for Ρ2+ to ρ3+. The switches in this embodiment are turned on or off at the same time. When these switches are turned on, the 兀510 is formed as a bandpass filter whose bandwidth is determined by the & time constant. When all switches are off, the U of the operational amplifier and each play an independent low-pass chopper, also operates at a bandwidth determined by rc = resistance Ra Rb, and Rd is a value that is elastically selected according to the dry circumference of the library, and is not limited in the present invention. Although the present invention is described above with reference to preferred embodiments, it is to be understood that the scope of the present invention may not necessarily It is within the scope of the present invention that any of the spirits of the present invention or the prior art are obvious. Therefore, the scope of patent claims must be solved in the broadest way. [Simplified illustration of the drawing] Figure 1 The system is a prior art transceiver system 100. Figure 2 is an embodiment of the transceiver system of the present invention, including a sub-anchor-wave module for transmission and reception. The knife-for-three figure is shared in Figure 2. The first embodiment of the filter module is shown in FIG. 2 as the second embodiment of the shared filter module of FIG. 2, 758E-A32549TWF; CMTI-〇6-〇〇6; Yeatsluo 200816627. Another embodiment of the combined filter in Fig. 4. Fig. 6 is an embodiment of the filtering unit in Fig. 5. [Description of main components] 100~ transceiver system; 102~low noise amplifier; 1041, 104Q , 1121, 112Q~ mixer; 1061, 106Q, 1101 110Q~low-pass filter; 114~variable gain amplifier; 116~power amplifier; 200~ transceiver system; 202~demodulation module; 2〇4~RF module; 210~shared filter module; 220 , 230 ~ baseband module; 2221, 222Q ~ variable gain amplifier; 2241, 224Q ~ analog digital converter; 2321, 232Q ~ digital analog converter; 3101, 310Q, 3201, 320Q ~ selector; 3021, 302Q ~ Low pass filter; I 330~calibration unit; 400~ transceiver system; 410~ combination filter; 4021, 402Q~ combination filter; 404~ wiring controller; 510~ filter unit; 502~ first wiring controller ; 504 ~ second wiring controller; 6021, 602Q ~ operational amplifier; 502a, 502b, 502c, 502d ~ wiring controller. 0758E-A32549TWF; CMTI-06-006; Yeatsluo 16

Claims (1)

200816627 十、申請專利範圍: 1.一種收發系統,可解調一射頻内送訊號以獲取内 送資^並將外送資料調變為—射頻外送訊號,包含: &一ί享式濾波模組,選擇性地運作於一第一模式和 第模式各用以過濾一第一頻寬和一第二頻寬 號; ! “一解調模組接該分享式濾波模組,用以在該第 一杈式中將該射頻内送訊號解調變而產生一第一解調結 f 果’並將㈣-解調結果傳送至該分享式濾波模組進行 過濾二以產生該第—頻寬的一第一過濾結果; …-第—基頻餘,減該分享式濾波模組,用以在 該:一杈式中將該第-過濾結果數位化,以產生該内送 貧料; 該第 訊號 過遽 \第二基頻模組,_接該分m皮模組,用以在 模式▲中將該外送資料類比化,以產生一外送基頻 亚將該外送基頻訊號送至該分享式濾波模組進行 以產生該第二頻寬的一第二過濾結果;以及 、補、、且_接该分旱式濾、波模組,帛以在該第 一杈式中將該第二過滹社果线 送訊號。 《、、。果進订―,以產生該射頻外 ” 3 ”專利範圍第1項所述之收發系統,其中該分 子式遽波叙組包含: 端 組合式濾波器,具有一同相輸入端 同相輸出端和一正交輸出端; 5 - 正交輸入 0758E-A32549TWF;CMTl-06.006;YeatsIu〇 17 200816627 y同相輸入選擇器和—正交輸 罘—模式時將該解調模组叙垃$ ^ 伴D°用以在该 輪入端,以及在該第二± _ 相輸入端和該正交 該同相輸人# # :χ㈠"將該第二基頻模組耦接至 彻入鸲和该正父輸入端;以及 第—第選擇:r正交輸出咖 正交輸出端模;至該同鳩^ 該同相輸出端和該正交:出式時將該射頻模組搞接至 3.如申請專利範圍第2 合式遽波器包含: 貝所述之收發系統,其中該組 一同相低通濾波器,1輪 而其輪出端产接該同相輸出端輪入㈣接嶋目輸入端’ 而並輸出二:::波為,其輸入端耦接該正交輸入端, 向/、輸出螭耦接該正交輸出端; 配線控制器,用以切拖兮望 端的_狀態,其中:^玄專同相/正交/輸入/輸出 接至ί二=中1::咖制器將該同相輸入端耦 入妗,#贫,人、將5玄同相輪出端耦接至該正交輪 而口 1、二式濾波器成為一帶通濾波器;以及 弟一杈式中,該配線控制器關閉,藉此使·^亥η =通濾嶋該正交低通軸互J離1:獨: 含一二圍第3項所述之收發系統’進一步包 凡輕接該同相低通濾波器和該正交低通濾波 〇758E-A32549TWF;CMTI-〇6-〇〇6;Yeatslu〇 18 200816627 器,調整該同相低通濾波器和該正交低通濾波器的一帝 阻電容時間常數以校準該第一和第二頻寬。 私 5.如申請專利範圍第2項所述之收發系統,其中該统 合式濾波㈣m結構,包含複數個渡波 聯’而每一濾波單元包含: 輸 出端; ^同相低通濾波器,具有一第一輸入端和—第 出端; 正交低通濾、波器,具有-第二輸入端和—第二輸 至該二::控制器’當啟動時將該第-輪入端輛接 一第二配線控制器,當啟動時將該二 至㈣一輸出端,·其中在該等濾、波單元的串—聯別中鳊輕接 前-同相低通濾波器的第一輸出端連接 通遽波器的第一輸入端,而前 问相低 給Ψ ☆山、吉4立丁 低通Μ波态的第二 輸出知連接下一正交低通濾波器的第二輸入端· 一 最前-個同相低通遽波器的第一輸入端;’ 輪入端’而最前—個正交低通遽 二问相 該正交輸入端; μ—輪入端印為 最後一個同相低通濾波器的第一 輸出端’而最後-個正交低通遽波器,同相 該正交輸出端,· 弟—輪出知即為 在該第一模式中,該第一和第_ 動,藉此使該组合式㈣器成為—心==啟 075眼A32549TWF;C_ 高錢Ye她。 19 200816627 在該第二模式中 … f, , _ 中,该乐一和第二配線控制器皆被關 合式項所a之收發系統’其中該組 工思°。糸為—階梯結構,包含複數個濾波單元串 聯,而母一濾波單元包含: , 甲 一 第—知作放大器串接於一同相通道上,以及一第 二操作放大器串接於_ 乐 入端和-對差動輪出端; f差動輸 一第—配線控制器’用以控制該第-操作放大器的 負以端和該第二操作放大器的負輸出端的耦接狀態; -第二配線控制器,用以控制該第一操作放大哭的 正輸t端和該第二操作放大器的正輸出端_接狀態; -—弟三配線控制器,用以控制該第一操作放大哭的 正輸t端和該第二操作放大器的正輸入端的耦接狀態' -第四配線控制器,用以控制該第一操作放大器的 負輸出端和該第二操作放大器的負輸人端的_狀1 .、 其中: ^, 在該第一模式中,該第一、第二、第三 i允在丨I % 士 —^弟四配線 皆被啟動,藉此使該組合式濾波器成 波器;以及 “ 在該第二模式中,該第-、第二、第三和第四配線 二制為皆被關閉,藉此使該組合式濾波器成為兩個 的低通濾波器。 0758E-A32549TWF;CMTI-06-006;Yeatsluo 20 200816627 7 ·如申請專利範圍第6項所述之收發系統,其中: 该弟一配線控制器包含一第一電阻與一第一開關串 聯 聯 聯 该第二配線控制器包含一第二電阻與一第二開關串 I 6亥第二配線控制器包含一第三電阻與一第三開關串 該第四配線控制器包含一第四電阻與一第四開關串 聯;以及 、在該第一模式中,該第一、第二、第三和第四開關 皆被啟動,而在該第二模式中,該第一、第二、第三和 第四開關皆被關閉。 8·如申請專利範圍第1項所述之收發系統,其中: C 核式係為—接收模式,在其中該分享式濾波 :組,通濃波器的功能,僅供該第一頻寬的訊號通 I =收發系統成為一低中頻接收器;以及 口亥弟一核式係為一偉i矣据*4、 » 模組提供低通濾波器的功能,、僅=::中該分享式濾波 過,〕力月b,僅供該第二頻寬的訊號通 過使该收發糸統成為一零中頻發射器。 9. 如申清專利範圍第彳 發系統係應用於傳送模式和接’其中該收 多工存取㈤叫通訊系統。拉式不同日-發生的分時 10. 如申請專利範 收發系統係為無線區域 w广之收發系統,其中該 次,.·罔路cwLAN),藍芽或全球行動 〇758E-A32549TWF;CMTI-〇6-〇〇6;Yeatslu〇 21 200816627 通訊系統(GSM)。 U·如申睛專利範圍第丨項所述之收 解調模組包含: &糸統,其中該 -低雜訊放大器,用以接收該射頻 進行放大控制; 、^成號並對其 第/tb波裔,在一同相通道上將,該射 混波以產生”-調變絲的同相分量内送訊號 混波送訊號 Μ丨2.如申請專利範圍第1項所述之收笋 第一基頻模組包含: χ Μ、、、先,其中該 一第一可變增益放大器,用以 同相分量進行增益調整; Μ弟一過濾結果的 第一類比數位轉換器,輕接該一上 器的^_,用以產生該内送資__^4變增益放大 一第二可變增益放大器,用以 、 正交分量進行增益調整;以及 X 過濾結果的 一第二類比數位轉換器,耦接哕 器的輸出,用以產生該内送資料的^交^:量可變增益放大 13.如申請專利範圍第!項所述之收;:二 該外送資料包含一同相分量和一正二、旦’·,、中: 該第二基頻模組包含: 又刀里,以及 —第一數位類比轉換器,用 分I轉換成該外送基頻訊號的同相分量^ 貝料的同相 〇758B'A32549TWF;CMTI-06-006;Yeatsluo 22 200816627 八旦二!Γ數位類比轉換器,用以將該外送資料的正交 刀里軲換成该外送基頻訊號的正交分量。 14·如申明專利範圍第丨項所述之 射頻模組包含: 心糸、、死其中该 分量;:「升頻轉換器’用以將該第二過濾、結果的同相 分量升一升頻轉換器,用以將該第二過繼的正交 / 一可變增益放大器,耦接該 器’對該第—和第二升頻轉換 二::升_:轉換 整,以產生該射頻外送訊號;以及貝、、、°果進订增益調 大以對外^將該射頻外送訊號進行功率放 15·—種組合式濾波器,應 — -同相輸入端,—正交輪、,:嶋統’包含·· 及一正交輸出端; —同相輸出端,以 而其輸出端輸出其:,端_同相輪入端’ 而其輸出端正皮:輪出其:,端-接駄交輪入端, 輸出端,其?ί ’廷擇性地耦接該等同相/正交/輸入/ 在-接收模式尹,該配線 接至該正交輪出端’並將該同相輪; 〇758E.A32549TWF;CMTI-〇6.〇06;Yeats]u〇 23 200816627 接二使ί同相低通濾波器和該正交低通濾、波器互相· 接形成一I通濾波器;以及 μ送模式中,該配線控制器關閉,藉此使該同 一思/态和該正交低通濾波器互相隔離,各自獨立 運作。 ^ 及一 Μ·—種組合式濾波器,應用於一收發系統,包含: 同相輸入端,一正交輸入端,一同相 正交輪出端,· 複數個濾波單元串聯 波單元包含: 以形成一階梯結構,而每一濾 -同相低通濾波器,具有一第—輸入端和 出端; $ W 山·一正父低通濾波器,具有一第二輸入端和一第二輸 出端; 上二弗一配線控制器,當啟動時將該第一輸入端耦接 至該第二輸出端; :第二配線控制器,當啟動時將該第二輸入端耦 至5亥弟一輸出端;其中: 在該等濾波單元的串聯中: 前一同相低通濾波器的第一輸出端連接下一同相 通濾波器的第一輸入端,而前一正交低通濾波器的第二 輪出端連接下一正交低通濾波器的第二輸入端; 最前一個同相低通濾波器的第—輸入端即為該同相 輸入端,而最前一個正交低通濾波器的第二輸入端即為 758E-A32549TWF;CMTI-06-006;Yeatsluo 24 200816627 •該正交輸入端; 取後-個同相低通濾波器的第一 輸出端,而最後—個正交低通渡波器的第二二;^相 該正交輸出端; 翰出碥即為 在接收枳式中,該第一和第二配線控制器比 動,藉錢該組合式濾波器成為一帶通據波器^=皮啟 在-傳送模式中,該第—和第二配 r 閉,藉此使該同相低通遽波器和該正交低通 隔離,各自獨立運作。 ^波扣互相 二合式m m收發“ H 同相輸入端,一正夺於入山 5 及一正交輸出端; ' 同相輪出端,以 複數個遽波單元串聯以形成 波單元包含: 秭'、、°構而母一濾 一弟一操作放大器串接:ίΛ m 1 二沪作访士 虫k f接於—同相通道上,以及一第 :大為串接於一正交通道上,各包含 入知和一對差動輸出端,· 、、差動輸 一第一配線控制器,用以 負輸入端和該第二操作放大器的負作放大的 一第二配線控制器,用在’ β 、耦接狀恶, 正輸入端和該第二操作放大:正二乐-操作放大器的 -第三配線控制器、,用==出端的_狀態; 正輸入端和該第二操作放 工117亥第—操作放大器的 … 大阳的正輪出端的耦接Η · -弟四配線控制器,控制該第—操作的 〇758E-A32549TWF;CMTI-06-006;YeatsIu〇 25 200816627 .負輸入端和該第二操作放大器的負輸出端的耦接狀態; 其中: 在一接收模式中,該第一、第二、第三和第四配線 控制器皆被啟動,藉此使該組合式濾波器成為一帶通濾 波器;以及 ! 1' 在一傳送模式中,該第一、第二、第三和第四配線 控制器皆被關閉,藉此使該組合式濾波器成為兩個獨立 的低通濾、波器。 0758E-A32549TWF;CMTI-06-006;Yeatsluo 26200816627 X. Patent application scope: 1. A transceiver system, which can demodulate an RF internal signal to obtain internal transmission information and convert the external data into an RF transmission signal, including: & The module selectively operates in a first mode and a first mode to filter a first bandwidth and a second bandwidth; "a demodulation module is coupled to the shared filter module for In the first mode, the radio frequency in-band signal is demodulated to generate a first demodulation result, and the (four)-demodulation result is transmitted to the sharing filter module to perform filtering to generate the first frequency. a first filter result of the width; ... - a base frequency remainder, minus the shared filter module, wherein the first filter result is digitized in the: one mode to generate the internal feed poor material; The first signal passes through the second baseband module, and the _ is connected to the sub-mesh module for analogizing the outgoing data in the mode ▲ to generate an external base frequency to send the external base frequency. Sending a signal to the sharing filter module to generate a second filtering result of the second bandwidth; Complementing, and _ are connected to the dry filter and wave module, and in the first 杈, the second pass is sent to the signal. ",,,,,,,,,,, The transceiver system of claim 1, wherein the molecular chopping group comprises: an end combined filter having a non-inverting input non-inverting output and a quadrature output; 5 - quadrature input 0758E-A32549TWF; CMTl-06.006; YeatsIu〇17 200816627 y non-inverting input selector and - orthogonal transmission mode - the demodulation module is described as $^ with D° for the wheel end, and a second ± _ phase input terminal and the orthogonal in-phase input person # # :χ(一)" coupling the second baseband module to the input and the parent input; and the first selection: r orthogonal Outputting the orthogonal output mode of the coffee; to the same 鸠^ the non-inverting output and the orthogonal: the outgoing type, the RF module is connected to 3. The patented scope 2nd chopper includes: Transceiver system, wherein the group of in-phase low-pass filters, one round and the round-out end of the same phase output The wheel (4) is connected to the input terminal' and outputs the second::: wave, the input end is coupled to the orthogonal input end, and the / and output ports are coupled to the orthogonal output end; the wiring controller is used for cutting Drag the _ state of the lookout, where: ^ Xuan special phase / orthogonal / input / output connected to ί two = medium 1:: the coffee machine coupled the non-inverting input into the 妗, #贫,人,将五玄同The phase wheel output is coupled to the orthogonal wheel and the port 1 and 2 filters become a band pass filter; and in the middle mode, the wiring controller is turned off, thereby causing the ^ η = pass filter to be positive The low-pass axis is separated from the J: 1: alone: the transceiver system described in item 3 of the second and second enclosures. Further, the in-phase low-pass filter and the orthogonal low-pass filter 〇758E-A32549TWF; CMTI-〇 6-〇〇6; Yeatslu〇18 200816627, adjusting the in-phase low-pass filter and the quadrature low-pass filter of a resistor capacitance time constant to calibrate the first and second bandwidths. 5. The transceiver system according to claim 2, wherein the integrated filtering (four)m structure comprises a plurality of wave-connected waves, and each filtering unit comprises: an output terminal; ^ an in-phase low-pass filter having a first An input terminal and an output terminal; an orthogonal low pass filter, a wave device having a second input terminal and a second input to the second:: controller 'when the starter is connected to the first wheel end a second wiring controller, when starting, connecting the two to four output terminals, wherein the first output end of the in-phase low-pass filter is connected in the string-linking of the filtering and wave units The first input of the chopper, while the front phase is low, the second output of the low-pass chopping state is connected to the second input of the next orthogonal low-pass filter. a first input of the in-phase low-pass chopper; 'the turn-in' and the first-orthogonal low-pass two-phase phase of the quadrature input; μ-the wheel-in end is the last in-phase low-pass filter The first output of the device and the last-orthogonal low-pass chopper, the in-phase output of the quadrature In the first mode, the first and the third move, so that the combined (four) device becomes - heart == 075 eyes A32549TWF; C_ high money Ye her. 19 200816627 In the second mode, ... f, , _, the Leyi and the second wiring controller are all connected to the transceiver system of the item a'. The 阶梯-step structure comprises a plurality of filter units connected in series, and the mother-filter unit comprises: a first-phase amplifier connected to the same-phase channel, and a second operational amplifier connected in series with the _ music input terminal - a differential wheel output; a differential output - a wiring controller 'for controlling the coupling state of the negative terminal of the first operational amplifier and the negative output of the second operational amplifier; - a second wiring controller a controllable output terminal for controlling the first operation to amplify the crying and a positive output terminal of the second operational amplifier; - a third wiring controller for controlling the first operation to amplify the crying a coupling state of the terminal and the positive input terminal of the second operational amplifier' - a fourth wiring controller for controlling a negative output terminal of the first operational amplifier and a negative input terminal of the second operational amplifier Wherein: ^, in the first mode, the first, second, and third i are allowed to be activated in the 丨I % 士 ^ ^ ^ ^ ^ ^ , , , , , , , , , ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ In the second mode, the first -, The second, third, and fourth wirings are all turned off, thereby making the combined filter two low-pass filters. 0758E-A32549TWF; CMTI-06-006; Yeatsluo 20 200816627 7 · Apply The transceiver system of claim 6, wherein: the wiring controller comprises a first resistor connected in series with a first switch, the second wiring controller comprises a second resistor and a second switch string I The 6th second wiring controller includes a third resistor and a third switch string. The fourth wiring controller includes a fourth resistor and a fourth switch in series; and, in the first mode, the first and the first 2. The third and fourth switches are all activated, and in the second mode, the first, second, third, and fourth switches are all turned off. 8. The transceiver is as described in claim 1 The system, wherein: the C-core type is a receiving mode, wherein the shared filtering: the group, the function of the concentrator, is only for the first bandwidth signal I = the transceiver system becomes a low intermediate frequency receiver And the mouth of the Haidi brother is a weiyi *4, » The module provides the function of the low-pass filter, only =:: in the shared filter, the force month b, only the signal of the second bandwidth is made to make the transceiver become a zero Frequency transmitter. 9. If the application scope of the patent clearing system is applied to the transmission mode and the connection, the multiplexed access (5) is called the communication system. The pull type is different - the time division occurs 10. If the patent application The transceiver system is a wireless area w wide transceiver system, which time, .. 罔 road cwLAN), Bluetooth or Global Action 〇 758E-A32549TWF; CMTI-〇6-〇〇6; Yeatslu〇21 200816627 communication system (GSM ). U. The demodulation module described in the scope of the patent application scope includes: & system, wherein the low noise amplifier is used to receive the radio frequency for amplification control; /tb wave, on the same phase channel, the jet is mixed to produce "-the same phase component of the modulated filament. The signal is sent to the signal. Μ丨 2. As mentioned in the first paragraph of the patent application. A baseband module includes: χ Μ, ,, first, wherein the first variable gain amplifier is used for gain adjustment of the in-phase component; the first analog-to-digital converter that filters the result is lightly connected to the upper ^_, for generating the internal feed __^4 variable gain amplification a second variable gain amplifier for quadrature component gain adjustment; and X filtering result of a second analog digital converter, Coupling the output of the buffer for generating the transfer data: a variable gain amplification 13. As described in the scope of the patent application;: the external data includes an in-phase component and a正二,旦'·,,中: The second fundamental frequency module contains: And the first digital analog converter, which is converted into the in-phase component of the external baseband signal by the sub-I; the in-phase 贝 758B'A32549TWF; CMTI-06-006; Yeatsluo 22 200816627 八旦二!Γ digital analogy The converter is configured to replace the orthogonal tool of the external data with the orthogonal component of the external baseband signal. 14· The radio frequency module according to the scope of claim 301 includes: The component is killed; the "up-converter" is used to boost the second filtered, in-phase component of the result to an up-converter for coupling the second successive quadrature/a variable gain amplifier The device 'converts the first-and second-stage up-conversions to:::: to convert the whole to generate the radio-frequency outgoing signal; and the shell, the, and the fruit-ordering gain are adjusted to externally Signal for power amplifier 15 - a combined filter, should - the non-inverting input, - orthogonal wheel,:: system 'including · · and an orthogonal output; - the same phase output, and its output Output it: the end _ in-phase wheel in the end 'and its output end is leather: turn it out:, end - an input terminal, an output terminal, which is selectively coupled to the equivalent phase / quadrature / input / in-receive mode Yin, the wiring is connected to the orthogonal wheel end 'and In-phase wheel; 〇758E.A32549TWF; CMTI-〇6.〇06;Yeats]u〇23 200816627 The two-phase low-pass filter and the orthogonal low-pass filter and the waver are connected to each other to form an I-pass filter. And in the μ send mode, the wiring controller is turned off, thereby isolating the same thinking state and the orthogonal low-pass filter from each other, and operating independently. ^ and a combination filter are applied A transceiver system includes: a non-inverting input terminal, a quadrature input terminal, and a co-phase orthogonal wheel-out terminal, and a plurality of filtering unit series wave unit includes: to form a ladder structure, and each filter-in-phase low-pass filter , having a first input terminal and an output terminal; a W W · a positive parent low pass filter having a second input terminal and a second output terminal; An input coupled to the second output;: a second wiring controller when activated The second input terminal is coupled to the output terminal of the hexagram; wherein: in the series connection of the filter units: the first output end of the previous in-phase low-pass filter is connected to the first input end of the next non-phase-pass filter, and The second round of the previous orthogonal low-pass filter is connected to the second input of the next orthogonal low-pass filter; the first input of the first in-phase low-pass filter is the non-inverting input, and the first The second input of an orthogonal low-pass filter is 758E-A32549TWF; CMTI-06-006; Yeatsluo 24 200816627 • the quadrature input; the first output of the in-phase low-pass filter is taken, and Finally, the second two of the orthogonal low-pass ferrites; the phase of the orthogonal output; the Hanshao is in the receiving mode, the first and second wiring controllers are compared, borrowing the combination The filter becomes a bandpass data source, and the first and second terminals are closed, thereby isolating the in-phase low-pass chopper and the orthogonal low-pass, and operating independently. ^ Wave-clamping mutual binary mm transceiver "H non-inverting input, one is in the mountain 5 and a quadrature output; 'In-phase wheel out, a plurality of chopper units connected in series to form a wave unit containing: 秭', °Architecture and mother-in-one filter one brother and one operation amplifier in series: Λ Λ m 1 Two Shanghai for the visitor worm kf connected to the same phase channel, and one: large serially connected to an orthogonal channel, each containing knowledge And a pair of differential outputs, a differential output, a first wiring controller, a second wiring controller for negative input and a negative amplification of the second operational amplifier, used in 'β, coupling Connection dead, positive input and the second operation amplification: positive two music - operational amplifier - third wiring controller, with = = _ state of the output; positive input and the second operation 117 hai - operation Amplifier's... The coupling of the positive end of the big yang - · - The four wiring controller controls the — 758E-A32549TWF of the first operation; CMTI-06-006; YeatsIu 〇 25 200816627 . Negative input and the second a coupling state of the negative output of the operational amplifier; In the receiving mode, the first, second, third, and fourth wiring controllers are all activated, thereby making the combined filter a bandpass filter; and !1' in a transmission mode, the first The second, third, and fourth wiring controllers are all turned off, thereby making the combined filter two independent low-pass filters and waves. 0758E-A32549TWF; CMTI-06-006; Yeatsluo 26
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CN103684330A (en) * 2012-09-18 2014-03-26 北京中电华大电子设计有限责任公司 Medium frequency filter simultaneously applied to wireless receiver and transmitter
CN108092642A (en) * 2017-12-18 2018-05-29 南京中感微电子有限公司 A kind of multiplexing mode filter
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