DESCRIPTION

The STV6886 is a monolithic integrated circuit assembled in a 32-pin shrink dual-in-line plastic package. This IC controls all the functions related to horizontal and vertical deflection in multimode or multi-frequency computer display monitors.

FEATURES

General

■ SYNC PROCESSOR (separate or composite)

■ 12V SUPPLY VOLTAGE

■ 8V REFERENCE VOLTAGE

■ HOR. LOCK/UNLOCK OUTPUT

■ HOR. & VERT. LOCK/UNLOCK INDICATION

■ READ/WRITE I2C INTERFACE

■ HORIZONTAL AND VERTICAL MOIRE

■ B+ REGULATOR

- Internal PWM generator for B+ current mode step-up converter

- Switchable to step-down converter

- I2C-adjustable B+ reference voltage

- Output pulses synchronized on horizontal frequency

- Internal maximum current limitation.

Horizontal

■ Self-adaptative

■ Dual PLL concept

■ 80kHz maximum frequency

■ X-ray protection input

■ I2C controls: Horizontal duty-cycle, H-position, horizontal size amplitude

Vertical

■ Vertical ramp generator

■ 50 to 120 Hz agc loop

■ Geometry tracking with VPOS & VAMP

■ I2C controls:VAMP, VPOS, S-CORR, C-CORR

■ Vertical breathing compensation

I2C Geometry Corrections

■ Vertical parabola generator (Pin Cushion - E/W, Keystone, Corner Correction)

■ Horizontal dynamic phase (Side Pin Balance & Parallelogram)

■ Horizontal and vertical dynamic focus (Horizontal Focus Amplitude, Horizontal Focus Symmetry, Vertical Focus Amplitude)