The BA7644AN is a four-channel analog multiplexer with mute, designed for use in video cassette recorders. It features a wide dynamic range, and wide operating frequency range, and is suitable for switching audio and video signals.

Features
1) 4-input / 1-output switches.
2) Built-in mute.
3) Wide operating supply voltage range (4.5V to 13.0V).
4) Low power consumption (48mW Typ.).
5) Excellent frequency characteristics (10MHz, 0dB Typ.).
6) Wide dynamic range (3.5VP-P Typ.).
7) High input impedance (20kΩ Typ.).
8) Low interchannel crosstalk ( – 65dB Typ., f = 4.43MHz).

Applications
    VCR, TV and audio signal switching