September 1986

2

Philips Semiconductors

Product specification

Low voltage PLL stereo decoder

TDA7040T

GENERAL DESCRIPTION

The TDA7040T is a monolithic integrated circuit for low cost FM stereo radios with an absolute minimum of peripheral

components and a simple lay-out.

Features

• Built-in four pole low pass filter with a 70 kHz corner frequency suppressing unwanted out-of-band input signals

• Fully integrated 228 kHz oscillator

• Pilot presence detector and soft mono/stereo blend

• Built-in interference suppression

• External stereo lamp driver applicable

• Adjustable gain.

QUICK REFERENCE DATA

PACKAGE OUTLINE

8-lead mini-pack; plastic (S08; SOT96A); SOT96-1; 1996 July 24.

PARAMETER

SYMBOL

MIN.

TYP.

MAX.

UNIT

Supply voltage (pin 4)

1,8

−

6V

−

3

−

mA

Total harmonic distortion

THD

−

0,3

−

%

Signal to noise ratio

S/(S

+ N)

−

70

−

dB

Channel separation

α−

40

−

dB