BA7071F

Multimedia ICs SYNC separator IC with AFC BA7071F The BA7071F contains a video synchronization separation circuit, a vertical video synchronization separation circuit, a horizontal oscillation circuit, and a phase comparator. It separates and outputs the horizontal and vertical synchronization signals (HD and VD), and the composite synchronization signal (Sync-out) from input video or composite synchronization signals. The phase difference between HD and VD is guaranteed for both the rising and falling edges of VD. Applications TVs, VCRs and camcorders Features 1) Built in AFC circuit. 2) HD and VD phase difference guaranteed. 3) Wide supply voltage range (3V to 7V). 4) Horizontal free-run frequency does not require adjustment. 5) Low external parts count. 6) SOP 8-pin package. Absolute maximum ratings (Ta = 25°C) Parameter Power supply voltage Power dissipation Operating temperature Storage temperature Symbol VCC Pd Topr Tstg Limits 8.0 350∗ – 20 ~ + 75 – 55 ~ + 125 Unit V mW °C °C ∗ Reduced by 3.5mW for each increase in Ta of 1°C over 25°C. Recommended operating conditions (Ta = 25°C) Parameter Power supply voltage Symbol VCC Min. 2.85 Typ. — Max. 7.5 Unit V 1 Multimedia ICs BA7071F Block diagram VIN 1 SYNC SEPA 8 Sync - OUT HD - OUT 2 Vsepa 7 VD - OUT GND 3 6 VCC PD - OUT 4 PD COMP VCO 5 HOSC - R Pin descriptions Pin No. 1 2 3 4 5 6 7 8 Pin name VIN HD - OUT GND PD - OUT HOSC - R VCC VD - OUT Sync - OUT Video input HD output GND Phase com...