TDA7462 datasheet(8/25 Pages) STMICROELECTRONICS

Part #	TDA7462

Description	DUAL AUDIOPROCESSOR WITH COMPANDER AND SUBWOOFER OUTPUT

PDF	25 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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8 / 25 page

Mute Functions

Direct mute

Digitally controlled softmute with 4 program-

mable mute times

Pause Detector

Programmable threshold

Delay time defined by external capacitor

FUNCTIONAL DESCRIPTION

Input Stages

Most of the input stages are similar to the others

ST audioprocessors with exception of the CD in-

puts (see Figure 1). In fact there are some CD

players in the market having a significant high

source impedance which affects strongly on the

common-mode rejection (CHRR) of the normal

differential input stage. The additional buffer of

the TDA7462 CD input avoids this drawback and

15K

100K

CD+

CD-

15K

PD+

PDGND

15K

D98AU866

100K

IN GAIN

SE1

SE2

SE3

15K

100K

28K

MDGND

MD+

28K

Figure 1. Input Stage

TDA7462

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TDA7462 Datasheet(PDF) 8 Page - STMicroelectronics