DEFLECTION PROCESSOR

The KB2512 is a monolithic 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 multi modes or multifrequency computer display monitors.

FEATURES

(HORIZONTAL)

• Self-adaptive

• 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 185Hz AGC loop

• Geometry tracking with V-POS & V-AMP

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

• DC breathing compensation

(I2C GEOMETRY CORRECTIONS)

• Vertical parabola generator

(pincushion-E/W, keystone, corner)

32-SDIP-400

• Horizontal dynamic phase (side pin balance &

parallelogram)

• Vertical dynamic focus (Vertical focus amplitude)

(GENERAL)

• Sync processor

• 12V supply voltage

• Hor. & Vert. lock/unlock outputs

• Read/Write I2C interface

• Horizontal and vertical moire

• B+ Regulator

- Internal PWM generator for B+ current mode

step-up converter.

- I2C adjustable B+ reference voltage

- Output pulses synchronized on horizontal

frequency

- Internal maximum current limitation.

- Soft start

• Compared with the KB2511B, KB2512 HAS:

- Corner correction

- Horizontal moire

- B+ soft start

- Increased max. Vertical frequency

- No horizontal focus

- No step down option for DC/DC converter.

FUNCTIONS

• Deflection processor

• I2C bus control

• B+ regulator

• Vertical parabola generator

• Vertical dynamic focus