1997 May 26

2

Philips Semiconductors

Product specification

Low power PLL FM demodulator for

satellite TV receivers

TDA8012AM

FEATURES

• High input sensitivity

• Fully balanced two-pin Voltage Controlled Oscillator

(VCO)

• Low input impedance (50 Ω)

• Low impedance video baseband output

• Internal voltage stabilizer

• Keyed Automatic Frequency Control (AFC) or peak AFC

• Carrier detector

• Automatic Gain Control (AGC) output.

APPLICATIONS

• Digital Broadcast System (DBS) satellite receivers.

GENERAL DESCRIPTION

The TDA8012AM is a sensitive Phase Locked Loop (PLL)

Frequency Modulation (FM) demodulator for the second

Intermediate Frequency (IF) in satellite receivers.

It provides Automatic Gain Control (AGC) and Automatic

Frequency Control (AFC) outputs that can be used to

optimize the level and the frequency of the signal applied

at the input. During the search procedure, the AFC output

provides a signal used for carrier detection.

QUICK REFERENCE DATA

ORDERING INFORMATION

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

supply voltage

4.75

5.0

5.25

V

supply current

405060mA

input level

53

57

61

dB

µV

operating carrier frequency

−

480

−

MHz

video output signal amplitude

(peak-to-peak value)

frequency deviation = 25 MHz

−

1

−

V

TYPE

NUMBER

PACKAGE

NAME

DESCRIPTION

VERSION

TDA8012AM

SSOP20

plastic shrink small outline package; 20 leads; body width 4.4 mm

SOT266-1