SGS Thomson Microelectronics STV2162 Datasheet

2H - VIDEO SCANNING PROC ESSO R

VIDEO PART

USER CONTROL FUNCT IONS : CONTRAST, BRIGHTNESS, SATURATION, COLOR EQUALIZER

RGB INPUT WITH FAST-BLANKING FOR ON-SCREEN-DISPLAY / TELETEXT

FAST BLANKING INPUT FOR CONTRAST REDUCTION (TRANSPARENT MENU BOX)

AVERAGE BEAM LI MITER FUNCTION WITH CONTRAST A ND B RIGH TNES S RE DUCTION

PAL/SECAM OR NTSC MATRIX SWITCHABLE BY BUS

AUTOMATIC CUT-OFF LOOP WITH INTEGRATED DIGITAL MEMORY AND LEAKAGE CURRENT COMPENSATION

FULL W H I TE A D JUSTMENT VI A BUS

BUS REPLY FOR TUBE COLD INFORMATION AND CUT-OFF COUNTER STATUS

APX (AUTO PIX) : ADAPTIVE CONTRAST CONTROL

COLOR MATCHING (IN CONNECTION WITH WHITE STRETCH)

APL (AUTO PEDESTAL) = ADAPTIVE BRIGHTNESS

WHITE STRETCH

VERTICAL AND OVERSIZE BLANKING ACCORDING TO ALL ZOOMS

INDEPENDENT RIGHT AND LEFT ADJUSTMENT OF HORIZONTAL OVERSIZE BLANKING

SCANNING PART

INTERNAL OR EXTERNAL 27MHz CLOCK

VERTICAL SYNCHRONISATION OUTPUT FOR VIDEO TEXT AND OSD DISPLAY

PHI2 LOOP WITH INTERNAL LOOP FILTER

PULSE OUTPUT FOR DRIVING HORIZONT AL OUTPUT STAGE

VERTICAL COUNTDOWN CIRCUIT FOR CLEAN VERTICAL DEFLECTION

INTEGRATED VERTICAL SAWTOOTH GENERA T OR WITH A MP LITUDE C ONT ROL LOOP

VERTICAL AND HORIZO NTAL BUS ADJUSTABLE SIZE CORRECTION (BREATHING) TO ADAPT DEFLECTION SENSITIVITY TO THE CURRENT BEAM

STV2162

PRODUCT PREVIEW

BUS ADJUSTED VERTICAL PARAMETERS: VERTICAL AMPLITUDE, VERTICAL POSITION AND S-CORRECTION

PANNING FOR VERTICAL DEFLECTION

BUS CONTROLLED EAST-WEST FUNCTION GENERATOR WITH INTEGRATED ERROR AMPLIFIER

V A RIABLE FIX -POINTS FOR S-CORRE CTION VERTICAL BLANKING AND EAST-WEST CORNER CORRECTI ON

SUPER SANDCAST LE OUTPUT

VERTICAL POWER SAVE MODE

SMPS PART

SMPS PULSE-WIDTH MODULATOR WITH BUS CONTROLLED REFERENCE VOLTAGE

SOFTSTART FOR SMPS MODULATOR, EVEN IN CASE OF MISSING HORIZONTAL CLOCK (27MHz)

SOFTST ART FOR HORIZONT AL OUTPUT ST AG E

SMOOTH TRANSITION FROM SOFTSTART TO NORMAL MODE

GENERAL STANDBY MODE CONTROL

PROTECTION CIRCUIT FOR OVERLOAD DETECTION (SHORT CIRCUITS) AND CONTROL OF SMPS MODULATOR

BUS REPLY FOR OVERLOAD

DESCRIPTION

The STV2162 is an I Deflexion Processor for 2H-Deflection Television Sets. The IC incorporates also an secondary SMPS (Switch Mode Power Supply) controller with Softstart and Protection facilities.

ORDER CODE : STV2162

C bus controlled Video and

SHRINK56

(Plastic Package)

January 1997

This is advance information on a new product now in development or undergoing evaluation. Details are subject to change without notice.

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STV2162

PIN CONNECTIONS

WHITE STRETCH CAPACITOR

U INPUT V INPUT Y INPUT

APL CONTROL

VERTICAL SYNC INPUT

HORIZONTAL SYNC INPUT

27MHz CLOCK

NOT CONNECTED

GROUND

COLOR MATCHING

NOT CONNECTED

BLUE CUT-OFF REFERENCE

GREEN CUT-OFF REFERENCE

RED CUT-OFF REFERENCE

SOFSTART CAPACITOR

SERIAL CLOCK (I

SERIAL DATA (I

5V STANDBY (SHUNT REGULATOR)

1 LOW PASS FILTER

LOOP

FOR SCANNING PART

REFERENCE RESISTOR FOR CURRENT

REGULATOR OUTPUT

VERTICAL SAWTOOTH ERROR OUTPUT

RESISTOR BRIDGE POSITIVE INPUT

RESISTOR BRIDGE NEGATIVE INPUT

THT MODULATION AND PROTECTION

C BUS)

GCUTREF RCUTREF

WS UIN VIN YIN

APL VDFL HDFL LDFL

GNDLIN

COLM

CCLIN

BCUTREF

CSOFT

SCL

SDA

V5V SLPF

REG

FROUT

SENSEP

SENSEM

BREATH

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22

CC1

REF

24 25 26 27 28

YOUT

RES55

RES54

CONVAR

FBTXT

APX

BTXT

GTXT

RTXT

GNDVID

CCVID

ICUTOFF

ROUT

GOUT

BOUT

VABL

HDRIVE

SMPSOUT

TXT_OUT

SSC

GND1

HFLY

EWOUT

SMPSIN

EWIN

CVERT

Y OUTPUT OF WHITE STRETCH RESERVED RESERVED Y INPUT VIDEO OF MAIN SIGNAL NOT CONNECTED CONTRAST VARIATION (FOR TRANSPARENT MENU) FAST BLANKING INPUT FOR TEXT/OSD AUTO PIX CAPACITOR BLUE INPUT TEXT/OSD GREEN INPUT TEXT/OSD RED INPUT TEXT/OSD GROUND FOR VIDEO PART

FOR VIDEO PART

CUT-OFF AND LEAKAGE MEASUREMENT RED OUTPUT GREEN OUTPUT BLUE OUTPUT

AVERAGE BEAM LIMITER INPUT OUTPUT FOR HORIZONTAL DRIVER

PWM OUTPUT FOR SMPS SYNC OUTPUT FOR TELETEXT/OSD SSC SUPER SANDCASTLE OUTPUT GROUND FOR SCANNING PART HORIZONTAL FLYBACK INTERFACE EAST/WEST OUTPUT VOLTAGE INPUT FOR SMPS ERROR AMPLIFIER EAST/WEST INPUT OF ERROR AMPLIFIER VERTICAL AGC CAPACITOR

2162-01.EPS

PIN DESCRIPTION

Pin Name Function Description, Test Conditions, Remark

1 WS Time Constant White str etch time co nstan t adj ustmen t. Ext ernal capa citor , in terna l 20 0kΩ r esist or. 2 UIN Input B-Y signal, AC coupling 3 VIN Input R-Y signal, AC coupling 4 YIN Input Luminance before white stretch, AC coupling 5 APL Time Constant Auto Pedestal (APL) time constant. External capacitor, internal 200kΩ resistor 6 VDFL Input Vertical synchro 7 HDFL Input Horizontal synchro 8 LDFL Input 27MHz Line Clock

9 NC Reserved Not connected 10 GNDLIN Power supply Ground for Scanning Logic 11 COLM Control Color Matching strength. This pin must be grounded through a resistor .

12 V

CCLIN

Power supply VCC for Scanning Logic 13 NC - Not Connected 14 BCUTREF Reference Clamping B. Capacitor 47nF against Ground : cut-off Black Reference. 15 GCUTREF Reference Clamping G. Capacitor 47nF against Ground : cut-off Black Reference.

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Resistor value determines Color Matching effect : 0 (short Circuit) = no effect, 44kΩ = maximal Colormatching.

2162-01.TBL

STV2162

PIN DESCRIPTION

(continued)

Pin Name Function Description, Test Conditions, Remark

16 RCUTREF Reference Clamping R. Capacitor 47nF against Ground : cut-off Black Reference. 17 CSOFT Time Constant Capacitor for softstart, value determines softstart time (typ. 220µF).

18 SCL Input Serial Clock for I 19 SDA Input Serial Data for I

C bus

C bus (pull down - capability for acknowledge and data reply)

20 V5V Power supply Voltage supply for standby biasing, voltage is regulated via internal shunt

regulator 21 SLPF Time Constant Loop filter for horizontal VCO 22 V

23 I

CC1

REF

Power supply Supply voltage for Scanning part, connected with external series regulator

transistor.

Current

Reference

External programming resistor 1% metal type (25kΩ against V

the horizontal free running frequency.

). Determines

CC1

24 REG Output Output for controlling the external regulator transistor 25 FROUT Output Output of transconductance Frame Amplifier, pin has to be connected to the

inverting input of the vertical power amplifier. 26 SENSEP Input Input of internal resistor bridge for sensing the vertical deflection yoke current 27 SENSEM Input Input of Internal resistor bridge for sensing the vertical deflection yoke current 28 BREATH Input Two functions :

- if input voltage >1.5V, Vertical size (V_BREATING) and Horizontal width

(H_BREATING) compensation.

- if pin pulled down by external transistor : protection activated. 29 CVERT Reference Regulation of vertical sawtooth amplitude 30 EWIN Input Input of the error-amplifier for the East-West modulator 31 SMPSIN Input Input for the secondary Switch Mode Power Supply pulse width modulator 32 EWOUT Output Output of the error amplifier for the East-West modulator (current output, biasing

directly the darlington output transistor 33 HFLY Input Horizontal Flyback Input 34 GND1 Power supply Ground for all scanning functions 35 SSCOUT Output Super sandcastle output from the scanning processor part. 36 TXTOUT Output Composite 2H synchro for Teletext, OSD, ... 37 SMPSOUT Output Output for SMPS driver transistor 38 HDRIVE Output Open collector output for the horizontal line transistor 39 VABL Input Voltage input for the Average Beam Limiter function 40 BOUT Output Video output blue channel 41 GOUT Output Video output green channel 42 ROUT Output Video output red channel 43 ICUTOFF Input Input for the leakage and cut-off current measurement 44 V

CCVID

Power supply Voltage supply for the video part 45 GNDVID Power supply Ground for video 46 RTXT Input Input for red channel of TEXT/OSD 47 GTXT Input Input for green channel of TEXT/OSD 48 BTXT Input Input for blue channel of TEXT/OSD 49 APX Time constant External capacitor and resistor to determine the attack and delay time of th e APX

detector 50 FBTXT Input Fast Blanking input for TXT/OSD insertion (VFBTXT = 0 . . 3 V) 51 CONVAR Input Voltage at this Input d ecreases i nstantaneousl y the Contr ast : Contr ast-reducti on

for transparent Menu box 52 NC Reserved Not connected 53 Y Input Video input Y channel 54 RES54 Reserved Must be grounded 55 RES55 Reserved Must be grounded 56 YOUT Luma Output

Signal

Luminance output after white stretch.

(Application : connect YOUT with Y (Video Part) via capacitor of 47nF.)

2162-01.TBL

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RGB FBYINVINUIN

BLOCK DIAGRAM

STV2162

YIN

SDA

SCL

VDFL HDFL

LDFL

SSC

WHITE STRETCH

LUMA

AVERAGE

DETECTOR

White Stretch

Control Function

I2C BUS AND

LATCHES

START-UP

LOGIC

Bus

2H-SANDCASTLE

GENERATOR

COLOR

EQUALIZER

1 LOOP

TIME BASE

VOLTAGE AND

CURRENT

REFERENCE

RGB CLAMPING

AND DE-MATRIX

Bus

VIDEO

PROCESSOR

DEFLECTION PROCESSOR

Bus

HORIZONTAL

SWITCH

LOGIC

Video

Switch

PHI2 LOOP

FLYBACK

INTERFACE

AUTO

CONTRAST

CONTRAST SATURATION BRIGHTNESS

Bus

AVERAGE BEAM

CURRENT LIMITER

Bus

AUTO

PIEDESTAL

Bus

VERTICAL

PROTECTION

Bus

RGB

LOGIC

Bus

ROUT GOUT

RGB

DRIVE

BOUT

ICUTOFF

VABL

CVERT SENSM SENSP FROUT

BREATHING

EWIN EWOUT

Bus Bus

RGB

LIMITER

MEASUREMENT

SAWTOOTH

S-CORRECTION

BREATHING

EAST-WEST

CORRECTION

CUT-OFF

VERTICAL

MATRIX

SMPSSOFT-START

STV2162

2162-02.EPS

VREF

IREF SYNCHRO

FOR

TXT OUT

HFLY

CSOFTHDRIVE

SMPS

OUT

STV2162

ABSOLUTE MAXIMUM RATINGS

Symbol Parameter Value Unit

V5V Own Protection structure (Power-Zener-Protection-Diode) (Pin 20) 6 V

SCL,SDA Protection Structures connected to V5V (each of this pin has an

own Power-Zener-Protection Diode) (Pins 18-19)

VCCLIN,

Voltage regulated via ext.Transistor (Pins 12-22-44) 8.4V

VCCVID,

CC1

VSENSP,

Voltage on Pins 26-27 18 V

VSENSM

Toper Operating Ambient Temperature 0, 70

Tstg Storage Temperature -55 , +150

THERMAL DATA

Symbol Parameter Value Unit

th (j-a)

Junction-ambient Thermal Resistance Max. 40

C/W

2162-02.TBL

2162-03.TBL

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