Video ICs
2-channel PRE / REC amplifier with auto-tracking interface
BA7181FS
The BA7181FS is a PRE / REC amplifier developed for use in video cassette recorders.
It has been designed for use in two-head decks and features built-in FB damping, two pre
amplifiers, a chroma output amplifier, an FM output amplifier (with AGC), an envelope detector, a constant-current BTL-drive REC amplifier (with AGC)and built-in channel and REC / PB switches on a single monolithic IC.
Applications • VCRs Features • 1) The playback amplifier has a total gain of 57dB (Typ.
), and has a low-noise preamplifier.
Designed for VHS-band operation with low external parts count.
The IC has two circuits for two-head VCR a...