SYNC separator IC with AFC
Multimedia ICs
SYNC separator IC with AFC
BA7046 / BA7046F
The BA7046 and BA7046F separate the synchronization signals ...
Description
Multimedia ICs
SYNC separator IC with AFC
BA7046 / BA7046F
The BA7046 and BA7046F separate the synchronization signals from a video signal and output the horizontal and vertical synchronization signals (HD and VD), and the composite synchronization signal (Sync-out). The HD and VD pulse phase difference is guaranteed. Applications TVs and VCRs Features 1) Built-in AFC circuit. 2) HD and VD phase difference guaranteed. 3) Low power dissipation. (approx. 21mW)
4) Low external parts count. 5) 8-pin DIP / SOP package. 6) Horizontal free-run frequency does not require adjustment.
Absolute maximum ratings (Ta = 25°C) BA7046 (DIP)
Parameter Power supply voltage Power dissipation Operating temperature Storage temperature Symbol VCC Max. Pd Topr Tstg Limits 8.0 500∗ – 20 ~ + 75 – 55 ~ + 125 Unit V mV °C °C
∗ Reduced by 5mW for each increase in Ta of 1°C over 25°C.
BA7046F (SOP)
Parameter Power supply voltage Power dissipation Operating temperature Storage temperature
over 25°C.
Symbol VCC Max. Pd Topr Tstg
Limits 8.0 350∗ – 20 ~ + 75 – 55 ~ + 125
Unit V mW °C °C
∗ When mounted on a 50mm × 50mm PCB board, reduced by 3.5mW for each increase in Ta of 1°C
Recommended operating conditions (Ta = 25°C)
Parameter Operating power supply voltage Symbol VCC Min. 4.5 Typ. — Max. 5.5 Unit V
1
Multimedia ICs
BA7046 / BA7046F
Block diagrams
1 H. OSC PHASE COMP 8 2 7
3
SYNC SEPA
6
4
V. SEPA
5
Pin descriptions
Pin No. 1 2 3 4 5 6 7 8 Function Horizontal oscillator resistor...
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