●GENERAL DESCRIPTION
●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° chassis, STV9306 for a 110° chassis), they allow ultistandard (BGDKIMNLL’, PAL/SECAM/NTSC) sets to be de signed with very few external components and no manual adjustments.
●■ I²C Bus Control
●■ PIF Circuit with PLL Demodulation(Positive and Negative Video)
●■ SIF Circuit with QSS Structure, FM Demodulation and AM Demodulation for France
●■ Intercarrier Capability
●■ Built-in Sound Bandpass
●■ Sound Subcarrier Output for Stereo Chassis (FM, NICAM)
●■ Audio FM wide mode
●■ Audio Switch and Volume Control (Mono Chassis)
●■ AVL (Automatic Volume Levelling)
●■ Integrated Chroma Filters and Luma Delay Line
●■ Integrated Chroma Delay Line
●■ Video Switch (3 CVBS In, 2 CVBS Out)
●■ SVHS Switch (Y Combined with CVBS3 Input)
●■ OSD RGB Inputs
●■ External RGB/YCrCb Inputs or YUV Interface
●■ PAL / SECAM / NTSC Chroma Demodulators
●■ Auto Flesh Control Capability in NTSC mode
●■ South America Capability (PAL-M / PAL-N / NTSC)
●■ Chroma Subcarrier Output
●■ Black Stretch Circuit
●■ Peaking Circuit
●■ Automatic Cut-off Current Loop
●■ Manual Cut-off possible for low-cost applications
●■ Two Horizontal Deflection PLLs
●■ Vertical Countdown
●■ Half Contrast
●■ APR (Automatic RGB Peak Regulation) or RGB Peak Limitation Function
●■ White Insertion
●■ Copy Protection mode
●■ Wide Line Blanking mode
●■ SAW Filter Switch Control (TQFP64 package only)
●■ Very Few External Components
