The BA6803S is a two-channel, 16-point fluorescent display tube driver for VU-scale bar-level meters. It uses a dynamic drive system and has both AC and DC inputs.
The AC input mode has a peak hold circuit. The IC features a power-on mute, and the output block can directly drive fluorescent display tubes, so few external components are required.
The grid output duty cycle is 1 / 8.

Features
1) Uses dynamic-drive system to display two 16-point channels. 30-pin SDIP package.
2) AC and DC inputs provided. Switching function allows two-mode display.
3) Upper 12 points have peak hold function in AC mode (two seconds typ.).
4) Power-on mute function.
5) Dynamic-drive system reduces the power dissipation of the fluorescent display tube power supply.
6) Square root compression amplifier built in.

Applications
    Level meters for all types of AV equipment