TDA9815 datasheet(2/40 Pages) PHILIPS

2 / 40 page

1998 Feb 11

Philips Semiconductors

Product speciﬁcation

Multistandard/MAC VIF-PLL with QSS-IF

and dual FM-PLL/AM demodulator

TDA9815

FEATURES

• 5 V supply voltage

• 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,

excellent pulse response)

• Robustness for over-modulation better than 105% due

to gated phase detector at L/L accent standard

• VCO frequency switchable between L and L accent

(alignment external) picture carrier frequency

• Separate video amplifier for sound trap buffering with

high video bandwidth

• VIF-AGC detector for gain control, operating as peak

sync detector for B/G, peak white detector for L and

peak level for MAC (optional external AGC);

signal controlled reaction time for L and MAC

• Tuner AGC with adjustable takeover point (TOP)

• AFC detector without extra reference circuit

• AC-coupled limiter amplifier for sound intercarrier signal

with input switch for additional FM signal

• Two alignment-free FM-PLL demodulators with

high linearity

• 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

• AM demodulator without extra reference circuit

• Stabilizer circuit for ripple rejection and to achieve

constant output signals

• ESD protection for all pins.

GENERAL DESCRIPTION

The TDA9815 is an integrated circuit for multistandard

vision IF signal processing (inclusive MAC) and sound AM

and dual FM demodulation, with single reference QSS-IF

in TV and VCR sets.

ORDERING INFORMATION

TYPE NUMBER

PACKAGE

NAME

DESCRIPTION

VERSION

TDA9815

SDIP32

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

SOT232-1

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