DEFLECTION PROCESSOR

The KB2511B is a monolithc integrated circuit assembled in 32 pins shrunk dual in line plastic package. This IC controls all the functions related to the horizontal and vertical deflection in multimodes or multi-frequency computer display monitors.

The internal sync processor, combined with the very powerful geometry correction block make the KB2511 suitable for very high performance monitors with very few external components. The horizontal jitter level is very low. It is particularly well suited for high-end 15” and 17” monitors.

FEATURES

(HORIZONTAL)

• Self-adaptative

• Dual PLL concept

• 150kHz maximum frequency

• X-RAY protection input

• I2C controls : Horizontal duty-cycle, H-position,free running frequency, frequency generator for burn-in mode.

(VERTICAL)

• Vertical ramp generator

• 50 to 165Hz AGC loop

• Geometry tracking with V-POS & AMP

• I2C Controls : V-AMP, V-POS, S-CORR, C-CORR

(I2C GEOMETRY CORRECTIONS)

• Vertical parabola generator (Pincushion-E/W, Keystone)

• Horizontal Dynamic Phase (Side Pin balance & parallelogram)

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

(GENERAL)

• Sync Processor

• 12V supply voltage

• Hor. & Vert, lock/unlock outputs

• Read/Write I2C interface

• 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

FUNCTIONS

• Defiection Processor

• I2C BUS Control

• B+ Regulator

• Vertical Parabola Generator

• Horizontal and Vertical dynamic focus