STV2112B datasheet(1/24 Pages) STMICROELECTRONICS

Part #	STV2112B

Description	BUS-CONTROLLED PAL/SECAM TV PROCESSOR

PDF	24 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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1 / 24 page

STV2112B

BUS-CONTROLLED PAL/SECAM TV PROCESSOR

August 1998

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GND1

Y/CVBS

BEXT

FBOSD

ROS D

GOSD

BOS D

SWI

VOL

FTUN2

FTUN1

SCL

SDA

ACC

CLPF

CXTL1

S ELECT

GND2

V

CC2

BYO

RYO

LFB/S C

HOUT

VOUT

VAMP

SLPF

S XTL

BCL

ICAT

RO

GO

BO

CR

CB

CG

CHR/SVHS

V

CC1

CHROMA/SCANNING/BUS S UP P LY

BYI

RYI

B-Y OUTPUT

R-Y OUTP UT

R-Y INPUT

B-Y INPUT

LINE FLYBACK INPUT/SANDCASTLE OUTP UT

HORIZONTAL OUTP UT

VERTICAL OUTP UT

AMPLITUDE CONTROL VOLTAGE

S CANNING LOOP FILTER

503kHz CERAMIC

BEAM CURRENT LIMITER

CATHODE CURRENT MEASUREMENT

RED OUTP UT

GREEN OUTP UT

BLUE OUTP UT

RED CUT-OFF CAPACITOR

BLUE CUT-OFF CAPACITOR

GREEN CUT-OFF CAPACITOR

CHROMINANCE INPUT/SVHS S ELECTION

VIDEO S UPP LY

BUS/VIDEO GROUND

CVBS OR LUMINANCE INPUT

EXTERNAL BLUE INPUT

OS D RGB INSERTION

OS D BLUE INPUT

IF STANDARD AND S WITCH S ELECTION

VOLUME AND MUTE CONTROL VOLTAGE

FILTER TUNING

DATA WIRE I2C BUS

ACC CONTROL CAPACITOR

CHROMA LOOP FILTER

XTAL2 S ELECTION

CHROMA/SCANNING GROUND

4.43 MHz XTAL

CLOCK WIRE I2C BUS

CLOCHE FILTER TUNING

OS D GREEN INPUT

OS D RED INPUT

GEXT

REXT

FBEXT

EXTERNAL GREEN INPUT

EXTERNAL RED INPUT

EXTERNAL RGB INSERTION

PIN CONNECTIONS

SHRINK42

(Plastic Package)

ORDER CODE : STV2112B

.

I

2C BUS CONTROL OF ALL FUNCTIONS

.

INTEGRATED FILTERS

(TRAP, BANDPASS, CLOCHE)

.

INTEGRATED LUMINANCE DELAY LINE

.

PAL/SECAM CHROMA DEMODULATORS

.

AUTOMATIC CUT-OFF CURRENT LOOP

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TWO RGB INPUTS

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SVHS SWITCH

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TWO PLLs HORIZONTAL DEFLECTION

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VERTICAL COUNT DOWN

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VERY FEW EXTERNAL COMPONENTS

DESCRIPTION

The STV2112B is a fully bus controlled IC for TV

luma, chroma and deflection processing.

Used with STV8224 (PIF/SIF/switches), TDA1771

or TDA8174 (frame booster),STV2180 (delay line),

it allows to design a PAL/SECAM(BGDKIL) set with

very few external components and no adjustment.

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