TDA9819T datasheet(2/40 Pages) PHILIPS

2 / 40 page

1998 Jul 14

Philips Semiconductors

Product speciﬁcation

Multistandard vision and sound-IF PLL with

DVB-IF processing

TDA9819

FEATURES

• 5 V supply voltage

• Applicable for IF frequencies of 38.9 MHz and

45.75 MHz

• Two switched VIF inputs, gain controlled wide band

VIF-amplifier (AC-coupled)

• True synchronous demodulation with active carrier

regeneration (very linear demodulation, good

intermodulation figures, reduced harmonics and

excellent pulse response)

• VCO frequency switchable between TV (M or BG/L)

IF-picture carrier and Digital Video Broadcast (DVB)

frequency

• Separate video amplifier for sound trap buffering with

high video bandwidth

• VIF AGC detector for gain control, operating as peak

sync detector for M and B/G and peak white detector for

L; controlled reaction time for L

• Tuner AGC with adjustable takeover point (TOP)

• AFC detector without extra reference circuit

• SIF input for single reference QSS mode

(PLL controlled); SIF AGC detector for gain controlled

SIF amplifier; single reference QSS mixer able to

operate in high performance single reference QSS

mode

• AC-coupled limiter amplifier for sound intercarrier signal

• Alignment-free FM-PLL demodulator with high linearity

• AM demodulator without extra reference circuit

• Stabilizer circuit for ripple rejection and to achieve

constant output signals.

DVB functions

• Gain controlled IF-amplifier

• Mixer for DVB-IF

• VCO for QAM carrier recovery

• External VCO control for DVB

• Internal and external AGC for DVB

• DVB output level adjust via AGC adjust

• High level DVB operational output amplifier.

GENERAL DESCRIPTION

The TDA9819 is an integrated circuit for multistandard

vision and sound-IF signal processing with single

reference PLL demodulator combined with the signal

stages for DVB-IF processing.

ORDERING INFORMATION

TYPE NUMBER

PACKAGE

NAME

DESCRIPTION

VERSION

TDA9819

SDIP32

plastic shrink dual in-line package; 32 leads (400 mil)

SOT232-1

TDA9819T

SO32

plastic small outline package; 32 leads; body width 7.5 mm

SOT287-1

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