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參數(shù)資料
| 型號： | TDA4474 |
| 英文描述： | Multistandard Video-IF and Quasi Parallel Sound Processing |
| 中文描述： | 多標準視頻中頻和準并行聲音處理 |
| 文件頁數(shù)： | 1/18頁 |
| 文件大?。?/td> | 295K |
| 代理商： | TDA4474 |
TELEFUNKEN Semiconductors
TDA4474
Preliminary Information
Rev. A1: 17.08.1995
1 (17)
Multistandard Video-IF and Quasi Parallel Sound Processing
Description
The TDA4474 is an integrated bipolar circuit for full
multistandard
video/sound
processing in TV/VCR and Multimedia applications. The
circuit processes all TV video IF signals with negative
modulation (e.g. B/G standard), positive modulation (e.g.
L standard) and the AM, FM/NICAM sound IF signals.
IF
(VIF/SIF)
signal
Four IF inputs (2 x VIF plus 2 x SIF) and the common
pinning with TDA4471 gives flexibility to design a
universal IF module for various applications.
Features
5V supply voltage; low power consumption
Active carrier generation by FPLL principle
(frequency–phase–locked–loop)
synchronous demodulation
for
true
Very linear video demodulation, good pulse
response and excellent intermodulation figures
VCO circuit is operating on picture carrier
frequency, the VCO frequency is switchable for
the L’ mode
Alignment–free AFC without external reference
circuit, polarity of the AFC curve is switchable
VIF–AGC for negative modulated signals
(peak sync detection) and for positive modulation
(peak white/black level detector)
Tuner AGC with adjustable take over point
Alignment–free quasi parallel sound (QPS) mixer
for FM/NICAM sound IF signals
Intercarrier output signal is gain controlled
(necessary for digital sound processing)
Complete alignment–free AM demodulator with
gain controlled AF output
Separate SIF–AGC with average detection
Parallel operation of the AM demodulator and
QPS mixer (for NICAM–L stereo sound)
Four IF inputs (2 x VIFin and 2 x SIFin)
Package and relevant pinning is compatible with
the TDA4471; simplifies the design of an
universal IF module
Package:
30 pin shrink–dual–inline–plastic (SDIP30)
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相關代理商/技術參數(shù) |
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|---|---|
| TDA44750-4008 | 制造商:ITT Interconnect Solutions 功能描述:E-SYS #016-01543-001 - Bulk |
| TDA44750-4044 | 制造商:ITT Interconnect Solutions 功能描述:OBS-TDA15P1C4 W/CL. NUT - Bulk |
| TDA4480C | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:Multi standard quasi parallel-sound processor for TV-sets |
| TDA4480-C | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:Multi standard quasi parallel-sound processor for TV-sets |
| TDA4480D | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Consumer IC |
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