U2841B datasheet, PDF - EEWORLD Datasheet

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U2841B: DescriptionMonolithic Integrated Circuit; File Size81KB，9 Pages; ManufacturerTEMIC; Websitehttp://www.temic.de/

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U2841B Overview

Monolithic Integrated Circuit

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U2841B

Monolithic Integrated Circuit

Description

The integrated circuit, U2841B, is designed as a single

FM-IF-amplifier and demodulator for TV sound

processing with SCART switches and AF control in

bipolar technology.

Features

IF input provided for operating with ceramic filters

Minimum total harmonic distortion

Low power consumption

Operates alternatively with 5 V or 12 V

supply voltage

Demodulator provided for operating with

ceramic resonator or coil

SCART AF input / AF output

Wide volume control range

ESD protected

Block Diagram

Tuned

reference circuit

47 pF

Deemphasis

4.7 nF

93 7519

IF input

SCART

AF output

11 k

Mute control

voltage

2.4 V / 3.7 V

V >7V

G=1

stab1

G=2

stab2

< 6 V

Volume control

SCART switch

AF input

12 demod. signal

SCART

AF input

AF output (controlled)

Figure 1.

TELEFUNKEN Semiconductors

Rev. A1, 17-Jul-96

1 (9)

Preliminary Information

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