TDA8741 datasheet(4/24 Pages) PHILIPS

4 / 24 page

October 1994

Philips Semiconductors

Product speciﬁcation

Satellite sound circuit with noise reduction

TDA8741; TDA8741H

PINNING

SYMBOL

SDIP42

QFP44

DESCRIPTION

n.c.

not connected

n.c.

not connected

n.c.

not connected

n.c.

not connected

n.c.

not connected

n.c.

not connected

MCS

main channel PLL lock-in range select/disable

IN-1

intercarrier input for secondary Channel 1 (left)

HFGND

ground for HF section

n.c.

not connected

SCD

secondary channels PLLs disable

n.c.

not connected

MUTE

mute switch

n.c.

not connected

Osel L

output select switch bit 1 (left)

IN-2

intercarrier input for secondary Channel 2 (right)

Osel R

output select switch bit 2 (right)

IN-3

intercarrier input for main channel

VREF

decoupling capacitor for reference voltage

CD M

de-emphasis capacitor for main channel

CC M

audio pass-through capacitor input for main channel

positive supply voltage

main channel output

right channel output

left channel output

EXT/INT

output switch bit 3 (external/internal)

EXTR

external audio input (right)

EXTL

external audio input (left)

CATT/REC R

attack/recovery capacitor (right)

RECTR

rectiﬁer DC decoupling (right)

CNR D R

noise reduction de-emphasis capacitor (right)

CD R

ﬁxed de-emphasis capacitor (right)

CC R

audio pass-through capacitor input for right channel

AFGND

ground for AF section

CC L

audio pass-through capacitor input for left channel

CD L

ﬁxed de-emphasis capacitor (left)

CNR D L

noise reduction de-emphasis capacitor (left)

RECTL

rectiﬁer DC decoupling (left)

CATT/REC L

attack/recovery capacitor (left)

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