The BA3833F is a 4+1 band-pass filter IC for spectrum analyzer with built-in recording indicator output. External components can be reduced largely by incorporating all capacitors that compose a filter. This enables to make set smaller and more highly-reliable.

Features
1) Spectral analysis 4-band band-pass filter and rectifier circuit (with internal capacitor).
2) Detector circuit for every frequency.
3) Parallel output with internal Lch / Rch mixing-up function.
4) Single battery operation in 5 to 6 V.

Applications
    CD radio cassette player, mini component stereo, car stereo