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Video ICs
CTL recording / playback amplifier for VHS VCRs
BA8400FV
The BA8400FV is a CTL recording / playback amplifier developed for VHS VCRs. The playback amplifier has an AGC circuit that can handle large input signal fluctuations, and a recording / playback switching circuit is provided to allow high-speed switching. Applications • VHS-format VCRs
Features • 1) Can be operated off low power supply voltage (2.7V to 3.5V). 2) Playback amplifier with AGC. 3) Fast switching between recording and playback.
•Block diagram
MONI OUT HysBIAS FILTER 14 13 12 11 10 9 8 P RECPBGND 7 Ref R CTL – 6 BIAS AGC IN – AMP CTL + 5 P VCC
DET
REC AMP
R
P
1
2
SW
3
CTL OUT
RECHPB
RECIN
GND
4
R
AGC
1
Video ICs
BA8400FV
•Pin descriptions
Pin No.