December 1982

2

Philips Semiconductors

Product specification

Interference and noise suppression

circuit for FM receivers

TDA1001B

TDA1001BT

GENERAL DESCRIPTION

The TDA1001B is a monolithic integrated circuit for suppressing interference and noise in FM mono and stereo receivers.

Features

• Active low-pass and high-pass filters

• Interference pulse detector with adjustable and controllable response sensitivity

• Noise detector designed for FM i.f. amplifiers with ratio detectors or quadrature detectors

• Schmitt trigger for generating an interference suppression pulse

• Active pilot tone generation (19 kHz)

• Internal voltage stabilization

QUICK REFERENCE DATA

PACKAGE OUTLINE

TDA1001B: 16-lead DIL; plastic (SOT38); SOT38-1; 1996 September 06.

TDA1001BT: 16-lead mini-pack; plastic (SO16; SOT109A); SOT116-1; 1996 September 06.

Supply voltage (pin 9)

typ.

12

V

Supply current (pin 9)

typ.

14

mA

A.F. input signal handling (pin 1)

(peak-to-peak value)

typ.

1

V

Input resistance (pin 1)

min.

35

k

Ω

typ.

0,5

dB

Total harmonic distortion

THD

typ.

0,25

%

Bandwidth

B

typ.

70

kHz

Suppression pulse threshold voltage

typ.

19

mV

Suppression pulse duration

typ.

27

µs

Supply voltage range (pin 9)

7,5 to 16

V

Operating ambient temperature range

−30 to + 80

°C