TDA9809 datasheet(2/40 Pages) PHILIPS

2 / 40 page

1998 Jan 08

Philips Semiconductors

Preliminary speciﬁcation

Single standard multimedia IF-PLL and FM

radio demodulator

TDA9809M

FEATURES

• 5 V supply voltage

• Applicable at Intermediate Frequencies (IFs) of 38.9 and

45.75 MHz

• Gain controlled wideband Video IF (VIF) amplifier

(AC-coupled)

• True synchronous demodulation with active carrier

regeneration (very linear demodulation, good

intermodulation figures, reduced harmonics,

excellent pulse response)

• Robustness for over-modulation better than 105% due

to PLL bandwidth control for negative modulation

standards

• VIF AGC (Automatic Gain Control) detector for gain

control, operating as peak sync detector for negative

modulation standards

• Tuner AGC with adjustable TakeOver Point (TOP)

• AFC (Automatic Frequency Control) detector without

extra reference circuit

• AC-coupled limiting amplifier for sound intercarrier

signal

• Alignment-free FM PLL (Phase-Locked Loop)

demodulator with high linearity; integrated de-emphasis

resistor

• Integrated level detector

• Alignment-free FM radio AFC detector with external

resonator

• RIF (Radio IF) amplifier for 10.7 MHz

• Stabilizer circuit for ripple rejection and to achieve

constant output signals

• ESD (Electrostatic Discharge) protection for all pins.

GENERAL DESCRIPTION

The TDA9809M is an integrated circuit for single standard

vision IF signal processing, FM demodulation and FM

radio demodulation in multimedia sets.

ORDERING INFORMATION

TYPE NUMBER

PACKAGE

NAME

DESCRIPTION

VERSION

TDA9809M

SSOP20

plastic shrink small outline package; 20 leads; body width 5.3 mm

SOT339-1

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