Description
The TDA9112 is a monolithic integrated circuit assembled in a 32-pin shrink dual-in-line plastic

Features
■ General
■ ADVANCED I2C BUS CONTROLLED DEFLECTION PROCESSOR DEDICATED FOR HIGH-END CRT MONITORS
■ SINGLE SUPPLY VOLTAGE 12V
■ VERY LOW JITTER
■ DC/DC CONVERTER CONTROLLER
■ ADVANCED EW DRIVE
■ ADVANCED ASYMMETRY CORRECTIONS
■ AUTOMATIC MULTISTANDARD SYNCHRONIZATION
■ 2 DYNAMIC CORRECTION WAVEFORM OUTPUTS
■ X-RAY PROTECTION AND SOFT-START & STOP ON HORIZONTAL AND DC/DC DRIVE OUTPUTS
■ I2C BUS STATUS REGISTER Horizontal section
■ 150 kHz maximum frequency
■ Corrections of geometric asymmetry: Pin cushion asymmetry, Parallelogram, separate Top/Bottom corner asymmetry
■ Tracking of asymmetry corrections with vertical size and position
■ Fully integrated horizontal moiré cancellation 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, Top/Bottom corners separately
■ 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
■ Generates waveforms for dynamic corrections like focus, brightness uniformity, ...
■ 1 output with vertical dynamic correction waveform
■ 1 output with composite HV dynamic correction waveform
■ Fixed on screen by means of tracking system DC/DC controller section
■ Step-up and step-down conversion modes
■ Internal and external sawtooth configurations
■ Bus-controlled output voltage
■ Synchronization on hor. frequency with phase selection
■ Selectable polarity of drive signal