M61251AFP

www.DataSheet4U.com M61251AFP Single-chip NTSC TV signal processor REJ03F0078-0100Z Rev.1.0 Sep.22.2003 Description The M61251AFP is a single-chip TV-signal processor IC for the NTSC format and is ideal for use in combination with a microcomputer. Processing circuits for all signals, including intermediate-frequency video and audio, video, color, the on-screen display of characters, and the deflection system are all included, and various functions are controllable via an I2C bus. Furthermore, a reset circuit, clock circuit, and regulator are included for use with microcomputers. Features Handling of VIF does not require a VCO coil Adjustment-free audio demodulator PLL-SPLIT SIF system with FM radio function Supports component video-signal input Fsc output available ACL or ABCL is selectable Built-in horizontal oscillator Built-in sawtooth waveform generator for vertical sync Self-diagnostic function Built-in black-peak hold, AFC2, color killer filter Horizontal / vertical pulse output for OSD Built-in microcomputer reset circuit Built-in microcomputer clock output Built-in 5- and 8-V regulators Rev.1.0, Sep.22.2003, page 1 of 15 www.DataSheet4U.com M61251AFP Block diagram Rev.1.0, Sep.22.2003, page 2 of 15 www.DataSheet4U.com M61251AFP Pin configuration 55 VIF VCO FEED BACK 54 FM DIRECT OUT 64 VIF IN(2) 63 VIF IN(1) 62 VIF AGC FILTER1 61 VIF AGC FILTER2 60 VIF APC FILTER AUDIO BYPASS INTERCARRIER OUT EXT AUDIO IN 59 58 57 56 SIF GND V ...