TDA3827 datasheet(2/12 Pages) PHILIPS

2 / 12 page

March 1991

Philips Semiconductors

Preliminary speciﬁcation

TV-sound demodulator circuit with

SCART switches and AF control

TDA3827

FEATURES

• Wide supply voltage range from

4.5 V to 13.2 V

• Wide frequency range from 4 to

12 MHz

• High ripple rejection

• High precision and temperature

compensated FM-demodulator

output

• Multiple-input AF operational

amplifiers with offset compensation

• SCART AF input / AF output (low

impedance)

• External AF input

• High-level AF output voltage with

low distortion

• External selection of the source

selector AF gain

• Low switching noise between AF

and mute

• Wide volume-control range

GENERAL DESCRIPTION

The TDA3827 contains a single FM

demodulator with SCART switches, a

mute function and volume control.

QUICK REFERENCE DATA

ORDERING AND PACKAGE INFORMATION

Note

1. SOT102-2; 1996 December 13.

SYMBOL

PARAMETER

CONDITIONS MIN.

TYP.

MAX.

UNIT

supply voltage

range (pin 18)

4.5

5.0

13.2

supply current

(pin 18)

VP = 5 V

−

VP = 12 V

−

+N)/N

signal to weighted

noise

−

V5(rms)

FM demodulator

output voltage

(RMS value)

∆f = 50 kHz;

fmod = 1 kHz;

QL = 20

450

500

550

V13(rms)

SCART output

signal

(RMS value)

−

1.0

−

volume control

range

−

V17(rms)

AF output signal

(RMS value)

∆f = 50 kHz;

fmod = 1 kHz;

QL = 20

−

1.0

−

THD

total harmonic

distortion (pin 17)

−

0.5

−

EXTENDED TYPE

NUMBER

PACKAGE

PINS

PIN POSITION

MATERIAL

CODE

TDA3827

DIL

plastic

SOT102(1)

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