
STMicroelectronics
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)