ADA4424-6

6-Channel SD/ED/HD Video Filter with Charge Pump ADA4424-6 FEATURES 3 SD channels; 18 MHz typical 1 dB bandwidth (BW) 3 ED/HD channels; 25 MHz/34 MHz typical 1 dB BW Fixed gain of 6.2 dB (2.042 V/V) On-board negative supply for output coupling without capacitors Minimal dc offset at the output pins Internal summation of Y and C channels for CVBS output Flexible input dc offset cancellation for luma channels D-terminal (EIAJ RC-5237 D5) and S-terminal (S1/S2) support Capable of driving 2 back-terminated 75 Ω video loads simultaneously Separate power-down pins for SD and ED/HD sections 38-lead TSSOP package Sony Green Partner Environmental Quality Approval Program compliant FUNCTIONAL BLOCK DIAGRAM +3.3V VDD3_SD D1 D2 D3 HD_ENB S SD_ENB VDD3_HD +5V VDD5 L1 D/S TERMINAL CONTROL L2 L3 S1/S2 S1/S2_OUT L1_OUT L2_OUT L3_OUT Y_IN ×1 LPF ×2 ×2 Y_OUT CVBS_OUT C_OUT C_IN MODE0 MODE1 OFFSET_ENB ×1 LPF OFFSET CANCELLATION FC_SEL ×2 ADA4424-6 HY_IN ×1 LPF FC_SEL ×2 HY_OUT APPLICATIONS DVD players and recorders Set-top boxes Projectors Personal video recorders HPb_IN ×1 LPF FC_SEL ×2 HPb_OUT HPr_IN FC_SEL SD_ENABLE HD_ENABLE ×1 LPF ×2 HPr_OUT VSS_SD SD_ENB POWER MANAGEMENT HD_ENB CHARGE PUMP VSS_HD +3.3V C1 C2 Figure 1. GENERAL DESCRIPTION The ADA4424-6 is a high performance video reconstruction filter specifically designed for consumer applications. It consists of a www.DataSheet4U.com standard definition (SD) section with two fifth-order Butterworth filters, ...