TDA4474

更新时间： 2024-02-27 11:15:33

品牌	Logo	应用领域
TEMIC		消费电路商用集成电路接收器集成电路光电二极管
页数	文件大小	规格书
18页	298K
描述
Multistandard Video-IF and Quasi Parallel Sound Processing

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技术参数
数据手册

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TDA4474 技术参数

是否Rohs认证：	不符合	生命周期：	Obsolete
Reach Compliance Code：	unknown	风险等级：	5.72
JESD-30 代码：	R-PDIP-T30	JESD-609代码：	e0
端子数量：	30	最高工作温度：	85 °C
最低工作温度：	-10 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	SDIP	封装等效代码：	SDIP30,.4
封装形状：	RECTANGULAR	封装形式：	IN-LINE, SHRINK PITCH
电源：	5 V	认证状态：	Not Qualified
子类别：	Other Consumer ICs	最大压摆率：	93 mA
表面贴装：	NO	技术：	BIPOLAR
温度等级：	OTHER	端子面层：	Tin/Lead (Sn/Pb)
端子形式：	THROUGH-HOLE	端子节距：	1.78 mm
端子位置：	DUAL	Base Number Matches：	1

TDA4474 数据手册

TDA4474

TELEFUNKEN Semiconductors

Multistandard Video-IF and Quasi Parallel Sound Processing

Description

The TDA4474 is an integrated bipolar circuit for full Four IF inputs (2 x VIF plus 2 x SIF) and the common

multistandard video/sound IF (VIF/SIF) signal pinning with TDA4471 gives flexibility to design a

processing in TV/VCR and Multimedia applications. The universal IF module for various applications.

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.

Features

D 5V supply voltage; low power consumption

D Alignment–free quasi parallel sound (QPS) mixer

for FM/NICAM sound IF signals

D Active carrier generation by FPLL principle

(frequency–phase–locked–loop)

synchronous demodulation

for

true D Intercarrier output signal is gain controlled

(necessary for digital sound processing)

D Very linear video demodulation, good pulse D Complete alignment–free AM demodulator with

response and excellent intermodulation figures gain controlled AF output

D VCO circuit is operating on picture carrier D Separate SIF–AGC with average detection

frequency, the VCO frequency is switchable for

D Parallel operation of the AM demodulator and

the L’ mode

QPS mixer (for NICAM–L stereo sound)

D Alignment–free AFC without external reference

D Four IF inputs (2 x VIFin and 2 x SIFin)

circuit, polarity of the AFC curve is switchable

D Package and relevant pinning is compatible with

D VIF–AGC for negative modulated signals

the TDA4471; simplifies the design of an

(peak sync detection) and for positive modulation

universal IF module

(peak white/black level detector)

Package:

D Tuner AGC with adjustable take over point

30 pin shrink–dual–inline–plastic (SDIP30)

Rev. A1: 17.08.1995

1 (17)

Preliminary Information

12 3 4 5 6 7...18

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