U4454B

更新时间： 2024-01-19 09:14:48

品牌	Logo	应用领域
TEMIC		消费电路接收器集成电路
页数	文件大小	规格书
7页	109K
描述
Quasi-Split-Sound Processing and AM-Demodulator

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中文翻译

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技术参数
数据手册

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U4454B 技术参数

生命周期：	Transferred	包装说明：	DIP-16
Reach Compliance Code：	unknown	风险等级：	5.7
Is Samacsys：	N	商用集成电路类型：	AUDIO DEMODULATOR
解调类型：	AM/FM	JESD-30 代码：	R-PDIP-T16
功能数量：	1	端子数量：	16
封装主体材料：	PLASTIC/EPOXY	封装形状：	RECTANGULAR
封装形式：	IN-LINE	认证状态：	Not Qualified
最大供电电压 (Vsup)：	12 V	最小供电电压 (Vsup)：	7 V
表面贴装：	NO	端子形式：	THROUGH-HOLE
端子位置：	DUAL	Base Number Matches：	1

U4454B 数据手册

U4454B

Quasi-Split-Sound Processing and AM-Demodulator

Description

The U4454B quasi-split-sound processor is a bipolar QSS-mixer. In case of AM sound the circuit can be used

integrated circuit for all FM-TV standards and NICAM as AM demodulator.

sound systems. For FM/NICAM the IC operates as

Features

PLL intercarrier-mixer for all FM standards

(incl. NICAM sound system)

High input sensitivity

Wide supply voltage range (6.8 V up to 13 V)

Low power consumption

ESD protection

High grade signal processing for FM/NICAM

sound systems

Also suitable as AM-demodulator

Gain controlled wideband amplifier

AGC operates as a peak- and mean-level detector

Case: 16-pin DIL plastic

Block Diagram

VCO Tank

Loop filter

93 7653

Video

Lock

detector

VCO

90°

Output

IF Input

0°

Interference

rejection

Overload

detector

AGC

+/–

Lock

detector

15 10

IF AGC

Average

Figure 1.

TELEFUNKEN Semiconductors

1 (7)

Rev. A1, 23-Feb-96

Preliminary Information

12 3 4 5 6 7

中文翻译

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