CN201733380U - System circuit capable of being applied to ultrathin liquid crystal television - Google Patents
System circuit capable of being applied to ultrathin liquid crystal television Download PDFInfo
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- CN201733380U CN201733380U CN201020259838XU CN201020259838U CN201733380U CN 201733380 U CN201733380 U CN 201733380U CN 201020259838X U CN201020259838X U CN 201020259838XU CN 201020259838 U CN201020259838 U CN 201020259838U CN 201733380 U CN201733380 U CN 201733380U
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- 239000004973 liquid crystal related substance Substances 0.000 title abstract 2
- 238000001914 filtration Methods 0.000 claims abstract description 13
- 230000002093 peripheral effect Effects 0.000 abstract description 4
- 230000005236 sound signal Effects 0.000 abstract description 4
- 230000002860 competitive effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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Abstract
The utility model discloses a system circuit capable of being applied to an ultrathin liquid crystal television, which comprises a display screen module, an audio processing module, a signal receiving module, a sound surface filtering module and a system single chip microcomputer. The signal receiving module receives radiofrequency signals and digital signals and converts the radio frequency signals and the digital signals into intermediate-frequency signals, the sound surface filtering module filters the intermediate-frequency signals and separates the intermediate-frequency signals into VIF signals and SIF signals, the system single chip microcomputer processes the VIF signals and the SIF signals to generate low pressure difference signals and sound signals, the display screen module receives the low pressure difference signals and displays images, and the audio processing module receives the sound signals and plays sound. Compared with the prior art, the system circuit can directly receive simulated television broadcast signals and digital signals which are in different systems, has simple peripheral circuits, overcomes thickness and volume limitation of the prior art, can be used for manufacturing modern ultrathin televisions, is lower in cost and adjustable in RF index, and has competitive advantages and higher flexibility.
Description
Technical field
The utility model relates to LCD TV, relates in particular to a kind of circuit system that can be applicable to ultra-thin LCD TV.
Background technology
In LCD TV, traditional tuner (also being Can Tuner) converts the radiofrequency signal that receives to intermediate-freuqncy signal, handles for behind the sound surface filtering system's single-chip microcomputer, after send LVDS signal display image on LCDs.But existing Can Tuner volume is huge relatively, the peripheral circuit complexity, and flexibility is relatively poor and cost is higher.Along with the direction of LCD TV to ultra-thin and ultra-light develops, the height of original tuner and volume have limited the thickness of machine core board greatly, and it is more ultra-thin that complete machine can't be accomplished, more and more can't satisfy the demand of ultra-thin LED TV.
The utility model content
The utility model is the problems referred to above that will solve prior art, proposes a kind of circuit system that can be applicable to ultra-thin LCD TV.
For solving the problems of the technologies described above, the technical scheme that the utility model proposes is a kind of circuit system that can be applicable to ultra-thin LCD TV of design, comprise display panel module and audio processing modules, received RF signal and digital signal also convert the signal receiving module of intermediate-freuqncy signal to, with intermediate-freuqncy signal filtering and be separated into the VIF signal and the sound surface filtering module of SIF signal, VIF signal and SIF signal are handled the system's single-chip microcomputer that generates low pressure difference signal LVDS and sound Audio signal; Described display panel module receives described low pressure difference signal and display image, and described audio processing modules receives described voice signal and plays sound.
Described signal receiving module comprises the MT2063 chip.
Described system single-chip microcomputer comprises the MST6M48 chip.
Compared with prior art, the utility model can directly receive the analog tv broadcast signal and the digital signal of different systems, and peripheral circuit is simple, prior art thickness and volume restrictions have been overcome, can produce modern ultra-thin television, cost is cheaper, has competitive advantage; The RF index is adjustable, more possesses flexibility.
Description of drawings
Below in conjunction with drawings and Examples the utility model is made detailed explanation, wherein:
Fig. 1 is the theory diagram of the utility model preferred embodiment;
Fig. 2 is the internal frame diagram of the signal receiving module in the utility model preferred embodiment.
Embodiment
Referring to Fig. 1, the disclosed a kind of circuit system that can be applicable to ultra-thin LCD TV of the utility model, comprise display panel module and audio processing modules, received RF signal and digital signal also convert the signal receiving module of intermediate-freuqncy signal to, with intermediate-freuqncy signal filtering and be separated into the VIF signal and the sound surface filtering module of SIF signal, VIF signal and SIF signal are handled the system's single-chip microcomputer that generates low pressure difference signal LVDS and sound Audio signal; Described display panel module receives described low pressure difference signal and display image, and described audio processing modules receives described voice signal and plays sound.
In preferred embodiment, described signal receiving module comprises the MT2063 chip.Described system single-chip microcomputer comprises the MST6M48 chip.MT2063 amplifies the radiofrequency signal that receives through inner, filtering, up-conversion, down-conversions etc. are sent intermediate-freuqncy signal (IF signal) and are given the sound surface filtering, and the sound surface filtering is given MST6M48 with isolated VIF and SIF, through putting in the MST6M48 inside, decoding, sound accompaniment treatment circuit, microcontroller and Scaler etc. send displayable low pressure reduction LVDS signal and give display panel module, by the display screen display image; Audio A udio signal is given audio processing modules, promotes loudspeaker and plays sound.
The MT2063 chip is the MT2063 Silicon Tuner of Microtune company, and the MST6M48 chip is the TV System on Chip/SoC of Mstar company.The MT2063 module is a Single-Chip Tuner, can directly receive the analog-and digital-television broadcasting signal of different systems, exports corresponding intermediate-freuqncy signal.Volume is little, and 48 pins are only arranged, and peripheral circuit is simple.Referring to the MT2063 interior sash shown in Fig. 2, wherein LNA is a low noise amplifier; ATN is an attenuator; UPC is the up-conversion module; DNC is a down conversion module.IFPM is the intermediate frequency power detection module, MT2063 module receive frequency is from the radiofrequency signal of 44MHZ-1GHz, it can be selected channel switch that frequency is the intermediate-freuqncy signal of 30MHz-60MHz, radiofrequency signal (RF signal) becomes intermediate-freuqncy signal and inputs to surface filtering module through inner LNA, ATN, UPC mixer and DNC double conversion and FIFF module.Its built-in integrated IFPM (intermediate frequency power management module) by detecting the power of IF signal, passes to the GCU module, thereby carries out automatic gain control, need not the external AGC lead-in wire of picture Can Tuner.Through double conversion, more help the performance index of the image rejection ratio of radio frequency in the module.Because the opening of its internal register makes in this TV implementation procedure, the RF index is controlled more flexible.
Adopt Simulation with I 2C bus on the software, realize the setting of anolog TV signals such as acceptance criteria PAL D/K, I, B/G, NTSC M system and GB high definition (SD) terrestrial broadcasting digital television signal.
Above embodiment is only for illustrating non-providing constraints.Anyly do not break away from spirit of the present invention and category, and, all should be contained among the application's the claim scope its equivalent modifications of carrying out or change.
Claims (3)
1. circuit system that can be applicable to ultra-thin LCD TV, comprise display panel module and audio processing modules, it is characterized in that also comprising: received RF signal and digital signal also convert the signal receiving module of intermediate-freuqncy signal to, with intermediate-freuqncy signal filtering and be separated into the VIF signal and the sound surface filtering module of SIF signal, VIF signal and SIF signal are handled the system's single-chip microcomputer that generates low pressure difference signal harmony tone signal; Described display panel module receives described low pressure difference signal and display image, and described audio processing modules receives described voice signal and plays sound.
2. the circuit system that can be applicable to ultra-thin LCD TV as claimed in claim 1 is characterized in that: described signal receiving module comprises the MT2063 chip.
3. the circuit system that can be applicable to ultra-thin LCD TV as claimed in claim 1 is characterized in that: described system single-chip microcomputer comprises the MST6M48 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020259838XU CN201733380U (en) | 2010-07-14 | 2010-07-14 | System circuit capable of being applied to ultrathin liquid crystal television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020259838XU CN201733380U (en) | 2010-07-14 | 2010-07-14 | System circuit capable of being applied to ultrathin liquid crystal television |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201733380U true CN201733380U (en) | 2011-02-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020259838XU Expired - Fee Related CN201733380U (en) | 2010-07-14 | 2010-07-14 | System circuit capable of being applied to ultrathin liquid crystal television |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201733380U (en) |
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2010
- 2010-07-14 CN CN201020259838XU patent/CN201733380U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110202 Termination date: 20120714 |