BLOCK DIAGRAMLGDT1502(SRC & DAC)VCO(27MHz)64MSDRAM64MSDRAM74LV00(NAND) AD9883(ADC)EPM3128(EPLD)VPC-3230(ADC & DECODER)CXA2019(DECODER)CXA2151(YUV S/W)CLC5623(OP-AMP)TDA-4665(1H-DELAY)MK2716(ClockGEN.)74LS123(M.V.B)i 2c-VDPi 2c-2i 2c-2i 2c-23 RGBPC INPUT33YPB PRYPB PRDTVDVDCVBS/ Y C Y CSUB MAINR-Y&B-YV-SYNC2CONTROLCONTROLSUB CVBSY & C5YUV & H/VYUV3V-SYNCYC B CR16YCB CR24CLK(27MHz)H-SYNC(TV.AV.COMP)CLKCLKAddress& DataAddress&Data444427MHz74.25MHzH/V 2i 2c-VDPCLKRESETYCB CR3 Option for PAL N/MSYNCCONTROLVIDEO SIGNALCLOCKH/V SYNCLLC-1i 2c-VDPi 2c-VDP7WU04FH/V 2INTLH/V-SYNC(PC)CLAMPDIGITAL BOARD