TDA7462 Datasheet, PDF(8/25 Page) STMicroelectronics – DUAL AUDIOPROCESSOR WITH COMPANDER AND SUBWOOFER OUTPUT

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TDA7462 Datasheet, PDF (8/25 Pages) STMicroelectronics – DUAL AUDIOPROCESSOR WITH COMPANDER AND SUBWOOFER OUTPUT

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TDA7462

Mute Functions

Direct mute

Digitally controlled softmute with 4 program-

mable mute times

Pause Detector

Programmable threshold

Delay time defined by external capacitor

Figure 1. Input Stage

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

CD+

CD-

PD+

PDGND

MDGND

MD+

SE1

SE2

SE3

100K

15K

28K

IN GAIN

D98AU866

8/25

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