CN204180175U - A kind of satellite and TV signal integrated tuner - Google Patents
A kind of satellite and TV signal integrated tuner Download PDFInfo
- Publication number
- CN204180175U CN204180175U CN201320313179.7U CN201320313179U CN204180175U CN 204180175 U CN204180175 U CN 204180175U CN 201320313179 U CN201320313179 U CN 201320313179U CN 204180175 U CN204180175 U CN 204180175U
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- CN
- China
- Prior art keywords
- signal
- satellite
- matching module
- tuner
- module
- 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
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- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Abstract
The utility model discloses a kind of satellite and TV signal integrated tuner, in tuner housing, walk abreast and satellite signal processing unit and processing television signals unit are set; Described satellite signal processing unit has the i/q signal matching module of impedance matching module, mixing-amplification/signal receiving module and the output i/q signal accepting satellite-signal: described processing television signals unit has the IF Signal Matching module of impedance matching module, mixing-amplification module and the output IF signal received television signals.The utility model can simultaneously receiving satellite broadcast signal and television broadcasting signal, function admirable, Superminiature, can greatly user friendly development and Design, and cost has larger reduction.
Description
Technical field
The utility model relates to television equipment, especially TV signal integrated tuner technical field.
Background technology
Along with developing rapidly of TV tech, its its technical is also made up of the Integration ofTechnology pattern moving towards future the monotechnics in past, and a component units electronic tuning unit important in television set is also received the pattern moved towards multi-modulation scheme and receive by the single standard in past.Current television broadcasting signal standard be divided into the reception (DVB-S/S2, ABS-S) of satellite television broadcasting signal, the reception (DVB-C/C2) of cable tv broadcast signal, the reception (DVB-T/T2) of terrestrial television broadcast signal and China Digital TV standard television broadcasting signal receive (DTMB-T/H).And at present whole set of television is applied as the reception (tuner that this kind receives we be called TV tuner) of DVB-C, DVB-T and DTMB, mostly the reception of satellite-signal (tuner that this kind receives we be called satellite tuner) is to receive in Set Top Box mode.At present for accept satellite-signal and TV signal whole set of television scheme be all two tuners, i.e. satellite tuner and TV tuner.Such complete machine development and Design, can not adapt to the trend of integrated development, and complete machine cost is also higher, and performance is also difficult to ensure card,
Utility model content
In view of the deficiencies in the prior art, the purpose of this utility model is to provide a kind of satellite and TV signal integrated tuner, makes it the above shortcoming overcoming prior art.
The purpose of this utility model is realized by following means.
A kind of satellite and TV signal integrated tuner, is characterized in that, in tuner housing, walks abreast and arrange satellite signal processing unit and processing television signals unit; Described satellite signal processing unit is linked in sequence and has the i/q signal matching module of the impedance matching module, mixing-amplification/signal receiving module and the output i/q signal that accept satellite-signal: described processing television signals sequence of unit is connected the IF Signal Matching module with the impedance matching module, mixing-amplification module and the output IF signal that receive television signals.
The four-in-one tuner product that the utility model is has adapted to television industry and people's life demand just, can simultaneously receiving satellite broadcast signal and television broadcasting signal, function admirable, Superminiature, can greatly user friendly development and Design, and cost has larger reduction.
Accompanying drawing explanation
Fig. 1 is the work block diagram of prior art satellite tuner.
Fig. 2 is the work block diagram of prior art TV tuner.
Fig. 3 is work block diagram of the present utility model.
Fig. 4 is the circuit diagram of the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
The work block diagram of two tuners of the separation used up till now can be seen by Fig. 1, Fig. 2, satellite-signal and TV signal are made two electronic tuning units respectively, in dotted line frame, represents tuner one respectively: satellite tuner and tuner two: TV tuner.
Fig. 3 is work block diagram of the present utility model, and the part included by dotted line frame is the utility model product, is effectively merged by two parts circuit and makes a module whole.The utility model satellite and TV signal integrated tuner, in tuner housing, walk abreast and arrange satellite signal processing unit and processing television signals unit; Described satellite signal processing unit has the i/q signal matching module of impedance matching module, mixing-amplification/signal receiving module and the output i/q signal accepting satellite-signal: described processing television signals unit has the IF Signal Matching module of impedance matching module, mixing-amplification module and the output IF signal received television signals.
Fig. 4 is the circuit diagram of the utility model embodiment.
The satellite received signal frequency of this product is 950 ~ 2150MHz, and other radio TV signals receiving frequencies are 42 ~ 870MHz.
In Fig. 4, PART1 is the impedance matching input circuit of satellite-signal (DVB-S/S2, ABS-S), PART2 be adopt RDA company RDA5815S integrated circuit composition mixing, amplification, demodulator circuit.PART3 is the impedance matching input circuit that general TV signal (DVB-C/C2, DVB-T/T2, DTMB) receives, and PART4 is mixing, the amplifying circuit of the TDA18273HN integrated circuit composition adopting NXP company.PART5 is the i/q signal matching circuit of satellite-signal (DVB-S/S2, ABS-S), and PART6 is the IF Signal Matching loop of general TV signal (DVB-C/C2, DVB-T/T2, DTMB).
Above stated be only the preferred implementation of the utility model method, it should be pointed out that under the prerequisite not departing from the utility model method essence, can make within some changes should be included in protection range of the present utility model in reality is implemented.
Claims (1)
1. satellite and a TV signal integrated tuner, is characterized in that, in tuner housing, walks abreast and arrange satellite signal processing unit and processing television signals unit; Described satellite signal processing unit is linked in sequence and has the i/q signal matching module of the impedance matching module, mixing-amplification/signal receiving module and the output i/q signal that accept satellite-signal; Described processing television signals sequence of unit connects the IF Signal Matching module with the impedance matching module, mixing-amplification module and the output IF signal that receive television signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320313179.7U CN204180175U (en) | 2013-05-31 | 2013-05-31 | A kind of satellite and TV signal integrated tuner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320313179.7U CN204180175U (en) | 2013-05-31 | 2013-05-31 | A kind of satellite and TV signal integrated tuner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204180175U true CN204180175U (en) | 2015-02-25 |
Family
ID=52568948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320313179.7U Expired - Fee Related CN204180175U (en) | 2013-05-31 | 2013-05-31 | A kind of satellite and TV signal integrated tuner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204180175U (en) |
-
2013
- 2013-05-31 CN CN201320313179.7U patent/CN204180175U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150225 Termination date: 20210531 |