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INTRODUCTION

The STV224XH/228XH/223XH are fully bus-controlled ICs for TV that include PIF, SIF, Luma, Chroma and Deflection processing functions. Used with a vertical frame booster (TDA8174A for a 90¡ã chassis, STV9306 for a 110¡ã chassis), they allow multistandard (BGDKIMNLL¡¯, PAL/SECAM/NTSC) sets to be designed with very few external components and no manual adjustments.

¡ö I?C Bus Control

¡ö PIF Circuit with PLL Demodulation

(Positive and Negative Video)

¡ö SIF Circuit with QSS Structure, FM

Demodulation and AM Demodulation for France

¡ö Intercarrier Capability

¡ö Built-in Sound Bandpass

¡ö Sound Subcarrier Output for Stereo Chassis (FM, NICAM)

¡ö Audio FM wide mode

¡ö Audio Switch and Volume Control (Mono Chassis)

¡ö AVL (Automatic Volume Levelling)

¡ö Integrated Chroma Filters and Luma Delay Line

¡ö Integrated Chroma Delay Line

¡ö Video Switch (3 CVBS In, 2 CVBS Out)

¡ö SVHS Switch (Y Combined with CVBS3 Input)

¡ö OSD RGB Inputs

¡ö External RGB/YCrCb Inputs or YUV Interface

¡ö PAL / SECAM / NTSC Chroma Demodulators

¡ö Auto Flesh Control Capability in NTSC mode

¡ö South America Capability (PAL-M / PAL-N / NTSC)

¡ö Chroma Subcarrier Output

¡ö Black Stretch Circuit

¡ö Peaking Circuit

¡ö Automatic Cut-off Current Loop

¡ö Manual Cut-off possible for low-cost

applications

¡ö Two Horizontal Deflection PLLs

¡ö Vertical Countdown

¡ö Half Contrast

¡ö APR (Automatic RGB Peak Regulation) or RGB

Peak Limitation Function

¡ö White Insertion

¡ö Copy Protection mode

¡ö Wide Line Blanking mode

¡ö SAW Filter Switch Control (TQFP64 package only)

¡ö Very Few External Components