3DQDVRQLF14CS1, CS038CVBS &Y/CselectoutputselectPeaking&CoringburstdetectchromadetectCVBS BufferINA, INB, INC0 - 320nS160nSCVBSY / CChroma trapno burst in auto modeINA, INBINCTo Sync.LumaChromaACCACLClocheChroma (SECAM)FscFilter TuningChroma (PAL / NTSC)CORPeakingCBACLYD0 - YD3(26)11101317CVBS1outChromaCVBS2outCVBS / YCVBS int.CVBS ext.Fig 8 : Block diagram: Filters and CVBS/Y/C switches