DESCRIPTION

The TDA9115 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

■ I2C-BUS-CONTROLLED DEFLECTION PROCESSOR DEDICATED FOR LOW-END CRT MONITORS

■ SINGLE SUPPLY VOLTAGE 12V

■ VERY LOW JITTER

■ DC/DC CONVERTER CONTROLLER

■ ADVANCED EW DRIVE

■ AUTOMATIC MULTISTANDARD SYNCHRONIZATION

■ DYNAMIC CORRECTION WAVEFORM OUTPUT

■ X-RAY PROTECTION AND SOFT-START & STOP ON HORIZONTAL AND DC/DC DRIVE OUTPUTS

Horizontal section

■ 150 kHz maximum frequency

■ Corrections of geometric asymmetry: Pin cushion asymmetry, Parallelogram

■ Tracking of asymmetry corrections with vertical size and position

■ Horizontal moiré cancellation output

Vertical section

■ 200 Hz maximum frequency

■ Vertical ramp for DC-coupled output stage with adjustments of: C-correction, S-correction for super-flat CRT, Vertical size, Vertical position

■ Vertical moiré cancellation through vertical ramp waveform

■ Compensation of vertical breathing with EHT variation

EW section

■ Symmetrical geometry corrections: Pin cushion, Keystone

■ Horizontal size adjustment

■ Tracking of EW waveform with Vertical size and position and adaptation to frequency

■ Compensation of horizontal breathing through EW waveform

Dynamic correction section

■ Vertical dynamic correction waveform output for dynamic corrections like focus, brightness uniformity, ...

■ Fixed on screen by means of tracking system

DC/DC controller section

■ Step-up and step-down conversion modes

■ External sawtooth configuration

■ Synchronization on hor. frequency with phase selection

■ Selectable polarity of drive signal