STV2162

2H - VIDEO SCANNING PROCESSOR

January 1997

PRODUCT PREVIEW

SHRINK56

(Plastic Package)

ORDER CODE : STV2162

VIDEO PART

.

USER CONTROL FUNCTIONS :

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 LIMITER FUNCTION WITH

CONTRAST AND BRIGHTNESS REDUCTION

.

PAL/SECAM OR NTSC MATRIX SWITCHA-

BLE BY BUS

.

AUTOMATIC CUT-OFF LOOP WITH INTE-

GRATED DIGITAL MEMORY AND LEAKAGE

CURRENT COMPENSATION

.

FULL WHITE ADJUSTMENT VIA BUS

.

BUS REPLY FOR TUBE COLD INFORMA-

TION 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 AC-

CORDING TO ALL ZOOMS

.

INDEPENDENT RIGHT AND LEFT ADJUST-

MENT 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 HORIZON-

TAL OUTPUT STAGE

.

VERTICAL

COUNTDOWN

CIRCUIT

FOR

CLEAN VERTICAL DEFLECTION

.

INTEGRATED VERTICAL SAWTOOTH GENE-

RATOR WITH AMPLITUDE CONTROL LOOP

.

VERTICAL AND HORIZONTAL BUS ADJUSTA-

BLE SIZE CORRECTION (BREATHING) TO

ADAPT DEFLECTION SENSITIVITY TO THE

CURRENT BEAM

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

.

BUS ADJUSTED VERTICAL PARAMETERS:

VERTICAL AMPLITUDE, VERTICAL POSI-

TION AND S-CORRECTION

.

PANNING FOR VERTICAL DEFLECTION

.

BUS CONTROLLED EAST-WEST FUNCTION

GENERATOR WITH INTEGRATED ERROR

AMPLIFIER

.

VARIABLE FIX-POINTS FOR S-CORRECTION

VERTICAL

BLANKING

AND

EAST-WEST

CORNER CORRECTION

.

SUPER SANDCASTLE 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)

.

SOFTSTART FOR HORIZONTAL OUTPUT STAGE

.

SMOOTH TRANSITION FROM SOFTSTART

TO NORMAL MODE

.

GENERAL STANDBY MODE CONTROL

.

PROTECTION CIRCUIT FOR OVERLOAD

DETECTION (SHORT CIRCUITS) AND CON-

TROL 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 Soft-

start and Protection facilities.

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