GL3812

GL3812 GL3812 AUDIO/VIDEO SWITCH FOR TV, VCR Functions Audio Signal Switching Video Signal Switching Input Signal Selecting Logic AUDIO-IN LCH(V1) 1 2 3 4 5 6 7 8 9 10 11 22 21 20 19 18 AUDIO-IN, LCH(TV) AUDIO-IN, RCH(TV) VCC2 VIDEO-IN(TV) AUDIO-OUT LCH AUDIO-OUT RCH VIDEO-OUT MODE-OUT TV/LOW MODE-OUT, V3/HIGH MODE-IN(C1) VIDEO-IN(V3) Pin Configuration Features Possible to Switch 4 Channel Video Signals Possible to Switch 4 Channel L & R Audio Signals Absolute Maximum Ratings ( T A Supply Voltage Power Dissipation Operating Temperature Storage Temperature AUDIO-IN, LCH(V2) AUDIO-IN, LCH(V3) AUDIO-IN, RCH(V1) AUDIO-IN, RCH(V2) AUDIO-IN, RCH(V3) VIDEO-IN(V1) = 25°C ) 15V 310mW -20 to -55 to GL3812 17 16 15 14 13 12 VCC1 VCC 2 PD TOPR TSTG VCC VIDEO-IN(V2) GND MODE-IN(C0) +70°C +125°C Mode Selection Logic/Output Signal C1 L L H H C0 L H L H PIN 14 L L L H PIN15 L H H H PIN16 VIDEO(TV) VIDEO ( V1 ) VIDEO ( V2 ) VIDEO( V3 ) AUDIO AUDIO AUDIO AUDIO PIN17 RCH(TV) RCH( V1 ) RCH( V2 ) RCH( V3 ) AUDIO AUDIO AUDIO AUDIO PIN18 LCH(TV) LCH( V1 ) LCH( V2 ) LCH( V3 ) 1 Block Diagram 14 15 8 20 VIDEO -IN, V1 8 BUFFER VIDEO AMP BUF FER 16 12 19 11 7 VIDEO OUT VIDEO -IN, V2 VIDEO -IN, V3 VIDEO -IN, TV MOD E-IN(CO) MODEIN INTERFACE DECODER AUDIO -IN, V1 2 BUFFER 3 22 AUDIO AMP(LCH) 1 1 LCH AUDIO -IN, V2 13 MODE -IN(C1) 2 4 5 6 21 BUFFER AUDIO AMP(RCH) 10 GND AUDIO -IN, V3 AUDIO -IN, TV BUFFER 18 -OUT, LCH AUDIO -IN, V1 RCH AUDIO -IN, V2 BUFFER AU...