KA2192

KA2192 4 IN PUT A/V SWITCH The KA2192 is audio/video 4 input switching IC in the video system for S-VHS(Super-Video Home System). This device can select audio/video signal of each different 4 kinds input. This device separates Y(luminance) and C(chroma) for S-VHS. 4 INPUT A/V SWITCH 30-SDlP-400 FUNCTION Two input decoder Mode selector 4 * 1 switch Mute switch Bias stage Gain switch (6dB or 8dB) Clamp circuit TV polarity switch 2 * 1 switch Pulse generator Switching part for selecting channel ORDERING INFORMATION Device KA2192 Package Operating Temperature 30-SDIP-400 -20~+65°C FEATURE Indepandent and stable bias block to prohibit cross talk of and source. Available the mode output. TV polarity switch can select negative and positive video signal to switch conditions. Clamp block for stabile video signal. Switch for to control signal gain (6dB or 8dB). Separation and Processing of Y(luminance) and C(chroma) for S-VHS video. KA2192 BLOCK DIAGRAM 4 INPUT A/V SWITCH L TV R TV TV-IN Ls-IN Rs-IN Sy-IN TV Polarity Sc-IN L1 1 2 3 4 5 6 7 6dB Inv 4x1 switch 6dB or 8dB 30 29 28 27 Vout Vcc Vcc GAIN S/W CLAMP 3 abc 26 C-IN 25 24 AV=1 CLAMP Y-OUT MODE-UP L-OUT R-OUT C-OUT GND Y-OUT MUTE SW2 + 6dB MODE SELECT 8 SWICH 9 4 4 AV=1 23 22 21 20 19 pulse gen 18 AV=1 mute s/w abcd Decoder 2 X 4 17 16 R1 10 EXT1 11 L2 R2 12 13 2x1 switch 4 EXT2 14 SW1 15 KA2192 4 INPUT A/V SWITCH Characteristic Supply Voltage Input Terminal Signal Volta...