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參數(shù)資料
| 型號(hào)： | TDA5940 |
| 廠商： | SIEMENS AG |
| 英文描述： | Video and Sound IF with V & S SCART |
| 中文描述： | 視頻和聲音中頻與V |
| 文件頁數(shù)： | 2/9頁 |
| 文件大小： | 242K |
| 代理商： | TDA5940 |
Semiconductor Group
45
TDA 5940-2
Circuit Description
Video IF Section
The video IF section incorporates a four-stage, capacitively coupled, symmetrical and controlled
amplifier, a limiter with selection and a mixer for quasi-synchronous demodulation of negative
modulated IF signals followed by a video output amplifier. The video demodulator output and the
SCART-switch input are connected by means of a sound trap. The SCART switch has two inputs
(for signals from video demodulator and SCART socket) and two outputs (SCART socket and TV
output). Parallel to the video output amplifier the video signal is used for generating the AGC
voltage. The control circuit is designed on the integralaction AGC principle, employing a noise-free
peak value detector. A delayed tuner AGC voltage with positive control direction is derived from the
AGC -voltage via a threshold amplifier that is set by means of an external potentiometer.
Sound IF Section
The sound IF section incorporates a five-stage, symmetrical limiter amplifier followed by a PLL
demodulator. The AF section contains an analog switch for the Full-SCART interface and a volume
control with AF output.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TDA5940-2 | Video and Sound IF with V & S SCART |
| TDA5950 | Video and Sound IF with FM-PLL Demodulator, AFC and V & S SCART |
| TDA5950X | Video and Sound IF with FM-PLL Demodulator, AFC and V & S SCART |
| TDA6050-5 | Video IF with FPLL, MAC State |
| TDA6142-5X | FM-Demodulator for SAT TV with Switchable Input |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA5940-2 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:Video and Sound IF with V & S SCART |
| TDA5950 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:Video and Sound IF with FM-PLL Demodulator, AFC and V & S SCART |
| TDA5950X | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:Video and Sound IF with FM-PLL Demodulator, AFC and V & S SCART |
| TDA6050-5 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:Video IF with FPLL, MAC State |
| TDA6060XS | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:Video-Modulator with PLL |
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