CN202818466U - Single output high frequency head for receiving satellite TV signal - Google Patents
Single output high frequency head for receiving satellite TV signal Download PDFInfo
- Publication number
- CN202818466U CN202818466U CN 201220424885 CN201220424885U CN202818466U CN 202818466 U CN202818466 U CN 202818466U CN 201220424885 CN201220424885 CN 201220424885 CN 201220424885 U CN201220424885 U CN 201220424885U CN 202818466 U CN202818466 U CN 202818466U
- Authority
- CN
- China
- Prior art keywords
- unit
- signal
- high frequency
- frequency
- chip unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
A single output high frequency head for receiving satellite TV signal comprises a high frequency adapter and an adapter seat, a wave guide tube, a wave collector, a dielectric slab slot and a circuit box. A high frequency front-end amplifying unit, a mirror image stop band pass filter unit, and a signal frequency-mixing amplifying integrated chip unit in the circuit box are sequentially connected with a medium frequency output end, a crystal oscillation circuit unit is connected with the signal frequency-mixing amplifying integrated chip unit, a control chip unit is respectively connected with the high frequency front-end amplifying unit, the signal frequency-mixing amplifying integrated chip unit and the medium frequency output end, the medium frequency output end is connected with the high frequency adapter. After the RF signal is amplified, the mirror image stop band pass filter unit and the signal frequency-mixing amplifying integrated chip unit output the medium frequency signal to the medium frequency output end. The single output high frequency head has the advantages: because the local oscillation, frequency mixing, and medium frequency amplifying are integrated in the chip, the temperature effect on the crystal oscillation is very small, the stability is very high, the quality of the output signal is improved, the production cost is reduced, the production efficiency is improved, and the service life of the high frequency head is prolonged.
Description
Technical field
The utility model relates to the high-frequency signal low-noise amplifying frequency demultiplier, particularly a kind of single output high frequency tuner for receiving satellite TV signal.
Background technology
The effect of tuner is to receive satellite TV signal, and going forward side by side, the line frequency road is selected, signal amplifies and down conversion process, the signal of final stable output.One of them important step is that the output signal frequency of tuner and reference-input signal are consistent, and this link is all finished by control chip and triode or N channel field-effect pipe, the DR medium molecular oscillating circuit that shakes usually.In use, need first by being rotatably provided in the set screw on the tuner, contact in the adjustment oscillating circuit and the distance between the DR medium oscillator, thereby change the output local frequency of oscillating circuit, until output signal frequency and input reference signal are consistent, fix in set screw place coating screw fastening glue at last, thereby output signal is locked.But because the local frequency that produces of tuner oscillating circuit is very high, generally all more than 9GHz, thereby so that in adjustment process, the minor variations between contact and the DR medium oscillator all will cause local frequency significantly to change.Therefore, the cost of regulative mode adjustment local frequency of regulating frequency of oscillation by the rotation set screw is very large, and the user needs repeated multiple times careful adjusting just can finish, thereby has increased the cost of manufacture of tuner.In addition, variation of ambient temperature also can make the generation of tuner each several part expand with heat and contract with cold, and very easily changes the distance between contact and the DR medium oscillator, causes the local frequency drift that regulates, and output signal can't be consistent with reference-input signal, finally affect quality of output signals.Therefore, can under abominable outdoor weather, guarantee stability for guaranteeing local frequency, guarantee the consistency of tuner local frequency, become a new important topic.
The utility model content
The purpose of this utility model is exactly the defects that will overcome prior art, a kind of quality that can improve output signal is provided, under abominable outdoor weather, keep high stability, need not manual adjustment during use, reduce cost of manufacture, enhance productivity the single output high frequency tuner that is used for receiving satellite TV signal that increases the service life.
For reaching above-mentioned purpose, the single output high frequency tuner that is used for the reception satellite TV signal that the utility model provides comprises high-frequency adapter head and switching headstock thereof, the guided wave cylinder, wave collecting device, dieelctric sheet slot and circuit box, in the described circuit box circuit board is installed, described circuit board comprises the high frequency front-end amplifying unit, the control chip unit, mirror image inhibition zone pass filter unit, the integrated chip unit is amplified in the signal mixing, crystal oscillating circuit unit and medium frequency output end, described high frequency front-end amplifying unit, mirror image inhibition zone pass filter unit, the signal mixing is amplified the integrated chip unit and is linked to each other successively with described medium frequency output end, described crystal oscillating circuit unit amplifies the integrated chip unit with described signal mixing and links to each other, described control chip unit and described high frequency front-end amplifying unit, the signal mixing is amplified the integrated chip unit and is linked to each other respectively with described medium frequency output end, and described medium frequency output end links to each other with described high-frequency adapter head; The satellite RF signal that described high frequency front-end amplifying unit receives is after described high frequency front-end amplifying unit amplifies, access described mirror image inhibition zone pass filter unit filtering interference signals, send into described signal mixing amplification integrated chip unit again and carry out the signal mixing, described signal mixing is amplified integrated chip unit output intermediate-freuqncy signal and is exported described high-frequency adapter head to through described medium frequency output end.
The utility model is used for receiving single output high frequency tuner of satellite TV signal, and wherein said signal mixing is amplified the integrated chip unit and is connected to described medium frequency output end by electric capacity.
The utility model is used for receiving single output high frequency tuner of satellite TV signal, wherein said control chip unit is described circuit board power supply, described control chip unit is connected to described medium frequency output end by two resistance and one group of printed inductance parallel with one another, and the control chip unit provides 5V voltage and provides bias voltage for the high frequency front-end amplifying unit through voltage stabilizing.
The utility model is used for receiving single output high frequency tuner of satellite TV signal, the chip formation that employing model in integrated chip unit is TFF1015HN is amplified in wherein said signal mixing, and employing model in described control chip unit is that a kind of chip among ZXNB4204, ZXNB4200, ZXNB4202, LS7001, LS7005 and the LS8587 consists of.
The advantage that the utility model be used for to receive single output high frequency tuner of satellite TV signal is: because the local oscillator of circuit board, mixing, intermediate frequency are amplified and all be integrated into the signal mixing to amplify integrated chip inner, crystal oscillator temperature influence in general environment is minimum, thereby can keep high stability, guaranteed the quality of output signal, under abominable outdoor weather, can keep output signal consistent with reference-input signal, need not in use manual adjustment.Simultaneously, under the stable prerequisite of guaranteed performance, further reduce cost of manufacture, improved production efficiency, prolonged the useful life of tuner.
Description of drawings
Fig. 1 is the structural representation of the utility model tuner;
Fig. 2 is the broken section structural representation of the utility model tuner;
Fig. 3 is the operation principle block diagram of circuit board in the utility model tuner;
Fig. 4 is the circuit diagram of circuit board in the utility model tuner.
In the accompanying drawing: 1. high-frequency adapter head, 2. switching headstock, 3. circuit box, 4. guided wave cylinder, 5. dieelctric sheet slot, 6. wave collecting device, 7. circuit board.
Embodiment
Describe the embodiment of a kind of single output high frequency tuner for receiving satellite TV signal of the utility model in detail below in conjunction with accompanying drawing.
See figures.1.and.2, the single output high frequency tuner that is used for the reception satellite TV signal that the utility model provides comprises high-frequency adapter head 1 and switching headstock 2, guided wave cylinder 4, wave collecting device 6 and circuit box 3.Circuit board 7 is installed in circuit box 3.
With reference to Fig. 3, circuit board 7 comprises high frequency front-end amplifying unit 8, control chip unit 9, mirror image inhibition zone pass filter unit 10, signal mixing amplification integrated chip unit 11, crystal oscillating circuit unit 12 and medium frequency output end 13.High frequency front-end amplifying unit 8, mirror image inhibition zone pass filter unit 10, signal mixing are amplified integrated chip unit 11 and are linked to each other successively with medium frequency output end 13, crystal oscillating circuit unit 12 amplifies integrated chip unit 11 with the signal mixing and links to each other, and control chip unit 9 amplifies integrated chip unit 11 with high frequency front-end amplifying unit 8, signal mixing and links to each other respectively with medium frequency output end 13.
In conjunction with reference to Fig. 4, it is the chip formation of TFF1015HN that integrated chip unit 11 employing models are amplified in the signal mixing, and control chip unit 9 employing models are that a kind of chip among ZXNB4204, ZXNB4200, ZXNB4202, LS7001, LS7005 and the LS8587 consists of.High frequency front-end amplifying unit 8 is connected to control chip unit 9 by the Copper Foil line respectively, the output signal of high frequency front-end amplifying unit 8 connects mirror image inhibition zone pass filter unit 10, then mirror image inhibition zone pass filter unit 10 output signals are amplified 3,4 pin of integrated chip unit 11 to mixing, crystal oscillating circuit unit 12 connects 11,12 pin that integrated chip unit 11 is amplified in the signal mixing, and 14 pin that integrated chip unit 11 is amplified in the signal mixing are connected to medium frequency output end 13 output intermediate-freuqncy signals by capacitor C 9.
The course of work that the utility model is used for single output high frequency tuner of reception satellite TV signal is: high frequency front-end amplifying unit 8 receives the RF signals, the satellite RF signal that receives is after high frequency front-end amplifying unit 8 amplifies, access mirror image inhibition zone pass filter unit 10 filtering interference signals, send into signal mixing amplification integrated chip unit 11 again and carry out the signal mixing, the signal mixing is amplified integrated chip unit 11 output intermediate-freuqncy signals and is exported high-frequency adapter head 1 to through medium frequency output end 13.
Because the improvement of foregoing circuit, the set screw that originally was arranged on the tuner can be cancelled, and need not adjust the output local frequency that contact in the oscillating circuit and the distance between the DR medium oscillator remove to change oscillating circuit.During use, because output signal frequency and input reference signal can be consistent, have high stability, guaranteed quality of output signals, output signal is advanced line-locked cost of manufacture also greatly reduce.
Embodiment recited above is described preferred implementation of the present utility model, is not that design of the present utility model and scope are limited.Under the prerequisite that does not break away from the utility model design concept; various modification and improvement that this area ordinary person makes the technical solution of the utility model; all should drop into protection range of the present utility model; the technology contents that the utility model is asked for protection all is documented in claims.
Claims (4)
1. single output high frequency tuner that be used for to receive satellite TV signal, comprise high-frequency adapter head (1) and switching headstock (2) thereof, guided wave cylinder (4), wave collecting device (6), dieelctric sheet slot (5) and circuit box (3), it is characterized in that: circuit board (7) is installed in the described circuit box (3), described circuit board (7) comprises high frequency front-end amplifying unit (8), control chip unit (9), mirror image inhibition zone pass filter unit (10), integrated chip unit (11) is amplified in the signal mixing, crystal oscillating circuit unit (12) and medium frequency output end (13), described high frequency front-end amplifying unit (8), mirror image inhibition zone pass filter unit (10), the signal mixing is amplified integrated chip unit (11) and is linked to each other successively with described medium frequency output end (13), described crystal oscillating circuit unit (12) amplifies integrated chip unit (11) with described signal mixing and links to each other, described control chip unit (9) and described high frequency front-end amplifying unit (8), the signal mixing is amplified integrated chip unit (11) and is linked to each other respectively with described medium frequency output end (13), and described medium frequency output end (13) links to each other with described high-frequency adapter head (1); The satellite RF signal that described high frequency front-end amplifying unit (8) receives is after described high frequency front-end amplifying unit (8) amplifies, access described mirror image inhibition zone pass filter unit (10) filtering interference signals, send into described signal mixing amplification integrated chip unit (11) again and carry out the signal mixing, described signal mixing is amplified integrated chip unit (11) output intermediate-freuqncy signal and is exported described high-frequency adapter head (1) to through described medium frequency output end (13).
2. the single output high frequency tuner for receiving satellite TV signal according to claim 1, it is characterized in that: wherein said signal mixing is amplified integrated chip unit (11) and is connected to described medium frequency output end (13) by electric capacity (C9).
3. the single output high frequency tuner for receiving satellite TV signal according to claim 1 and 2, it is characterized in that: wherein said control chip unit (9) is described circuit board (7) power supply, described control chip unit (9) is connected to described medium frequency output end (13) by two resistance (R5, R6) parallel with one another and one group of printed inductance, and control chip unit (9) provide 5V voltage and provide bias voltage for high frequency front-end amplifying unit (8) through voltage stabilizing.
4. the single output high frequency tuner for receiving satellite TV signal according to claim 3, it is characterized in that: the chip formation that employing model in integrated chip unit (11) is TFF1015HN is amplified in wherein said signal mixing, and employing model in described control chip unit (9) is that a kind of chip among ZXNB4204, ZXNB4200, ZXNB4202, LS7001, LS7005 and the LS8587 consists of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220424885 CN202818466U (en) | 2012-08-24 | 2012-08-24 | Single output high frequency head for receiving satellite TV signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220424885 CN202818466U (en) | 2012-08-24 | 2012-08-24 | Single output high frequency head for receiving satellite TV signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202818466U true CN202818466U (en) | 2013-03-20 |
Family
ID=47877267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220424885 Expired - Fee Related CN202818466U (en) | 2012-08-24 | 2012-08-24 | Single output high frequency head for receiving satellite TV signal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202818466U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103259991A (en) * | 2013-05-23 | 2013-08-21 | 张金国 | Dual output tuner for receiving satellite television signals |
| CN104469215A (en) * | 2015-01-04 | 2015-03-25 | 安徽波维电子科技有限公司 | C-waveband tuner sharing two-level amplifier |
| CN106507003A (en) * | 2016-12-02 | 2017-03-15 | 安徽波维电子科技有限公司 | A kind of New Anti-interference tuner |
-
2012
- 2012-08-24 CN CN 201220424885 patent/CN202818466U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103259991A (en) * | 2013-05-23 | 2013-08-21 | 张金国 | Dual output tuner for receiving satellite television signals |
| CN103259991B (en) * | 2013-05-23 | 2016-03-30 | 江苏金国电子有限公司 | For receiving the dual output tuner of satellite TV signal |
| CN104469215A (en) * | 2015-01-04 | 2015-03-25 | 安徽波维电子科技有限公司 | C-waveband tuner sharing two-level amplifier |
| CN106507003A (en) * | 2016-12-02 | 2017-03-15 | 安徽波维电子科技有限公司 | A kind of New Anti-interference tuner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202818466U (en) | Single output high frequency head for receiving satellite TV signal | |
| CN106487402A (en) | The low-power consumption receiver rf front-end of radio frequency interface on comprehensive piece | |
| CN104301841A (en) | Simple wireless microphone circuit | |
| CN203301609U (en) | Tuner for receiving Ku wave band satellite television signals | |
| CN202679500U (en) | Tuner for receiving satellite television signals | |
| TWI465033B (en) | Radio frequency front-end circuit and operation method thereof | |
| CN203057322U (en) | A tuner for receiving Ku-band satellite television signals | |
| CN202014326U (en) | Tuner | |
| CN104540293A (en) | Switching power driving chip, burning adjustment method and LED constant-current driving circuit | |
| CN201142720Y (en) | Radio-frequency head, satellite digital television signal receiving and processing circuit and receiving system | |
| CN103259991B (en) | For receiving the dual output tuner of satellite TV signal | |
| CN204377193U (en) | Constant current driver circuit for LED and Switching Power Supply driving chip thereof | |
| CN203942591U (en) | A kind of receiver system with cognitive function | |
| CN203368609U (en) | Double-output high frequency head capable of receiving satellite television signals | |
| CN204013923U (en) | A kind of for receiving the integrated low-converter of wideband direct broadcast satellite TV signal | |
| CN106411339A (en) | Radio monitoring and receiving system based on direct frequency conversion | |
| CN205430208U (en) | Broadband voltage controlled oscillator and frequency synthesizer | |
| CN203279017U (en) | Satellite television signal double-output LNB receiving circuit | |
| CN207283542U (en) | A kind of LoRa communication modules | |
| CN203166983U (en) | Crystal oscillator frequency modulation system of DMR communication | |
| CN204119356U (en) | A kind of single output satellite signal high-frequency tuner | |
| CN203399225U (en) | Integrated down converter for receiving satellite television signals | |
| CN203279018U (en) | Novel high frequency head | |
| CN203166831U (en) | Dual-polarized single-local-oscillator single-output high-gain low-noise frequency demultiplier | |
| CN205545637U (en) | Single -output has satellite signal high frequency tuner of signal detection function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU JINGUO ELECTRONICS CO., LTD. Free format text: FORMER OWNER: ZHANG JINGUO Effective date: 20130808 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 212311 XUZHOU, JIANGSU PROVINCE TO: 212311 ZHENJIANG, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130808 Address after: 212311 Danyang province Jiangsu City Picheng Town Private Industrial Park Patentee after: Jiangsu Jinguo Electronics Co., Ltd. Address before: The old city of Danyang City Picheng Town Street 212311 No. 14 Jiangsu city of Xuzhou Province Patentee before: Zhang Jinguo |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20150824 |
|
| EXPY | Termination of patent right or utility model |