TDA8377A datasheet(2/72 Pages) PHILIPS

2 / 72 page

1997 Jul 01

Philips Semiconductors

Preliminary speciﬁcation

I2C-bus controlled economy PAL/NTSC

and NTSC TV-processors

TDA837x family

FEATURES

Available in all ICs:

• Vision IF amplifier with high sensitivity and good figures

for differential phase and gain

• PLL demodulator for the IF signal

• Alignment-free sound demodulator

• Flexible source selection with a CVBS input for the

internal signal and Y/C or CVBS input for the external

signal

• Audio switch

• The output signal of the CVBS (Y/C) switch is externally

available

• Integrated chrominance trap and band-pass filters

(auto-calibrated)

• Luminance delay line integrated

• A symmetrical peaking circuit in the luminance channel

• Black stretching of non-standard CVBS or luminance

signals

• RGB control circuit with black current stabilization and

white point adjustment

• Linear RGB inputs and fast blanking

• Horizontal synchronization with two control loops and

alignment-free horizontal oscillator

• Slow start and slow stop of the horizontal drive pulses

• Vertical count-down circuit

• Vertical driver optimized for DC-coupled vertical output

stages

• I2C-bus control of various functions

• Low dissipation

• Small amount of peripheral components compared with

competition ICs.

GENERAL DESCRIPTION

The various versions of the TDA837x series are I2C-bus

controlled single-chip TV processors which are intended to

be applied in PAL/NTSC (TDA8374 and TDA8375) and

NTSC (TDA8373 and TDA8377) television receivers.

All ICs are available in an SDIP56 package and some

versions are also available in a QFP64 package. The ICs

are pin compatible so that with one application board

NTSC and PAL/NTSC (or multistandard together with the

SECAM decoder TDA8395) receivers can be built.

Functionally this IC series is split in to 2 categories:

• Versions intended to be used in economy TV receivers

with all basic functions

• Versions with additional functions such as E-W

geometry control, horizontal and vertical zoom function

and YUV interface which are intended for TV receivers

with 110

° picture tubes.

The various type numbers are given in Table 1.

The detailed differences between the various ICs are

given in Table 2.

Table 1

TV receiver versions

TV RECEIVERS

SDIP56 PACKAGE

QFP64 PACKAGE

ECONOMY

MID/HIGH END

ECONOMY

MID/HIGH END

PAL only

TDA8374B

−

TDA8374BH

−

PAL/NTSC (SECAM)

TDA8374 and TDA8374A

TDA8375 and TDA8375A

TDA8374AH

TDA8375AH

NTSC

TDA8373

TDA8377 and TDA8377A

−−

TDA8377A Datasheet(PDF) 2 Page - NXP Semiconductors

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