M50194AP

The M50194AP is a kind of digital reverberation IC fabricated with silicon-gate CMOS technology. The device can mix each five delays and there delays can make reverberation of church or bathroom. Besides, it is a chip needing reverberation and includes an A-D, D-A converter (ADM) and memory that can be obtained a reverb system.

There are some features as follows: (1)includes an A-D, D-A converter (adaptive delta modulation), two low pass filters and a 20K-bit SRAM; (2)low noise, low distortion: -90 dBV typ noise and 0.3% typ distortion when surround mode and  -90 dBV typ noise and 1.8% typ distortion when echo mode; (3)delay time and mode can be controlled by -COM or manual setting; (4)includes auto mute circuit to protect sound from digital noise caused by delay time mode change or power supply; (5)two control modes can be selected for delay time and mode setting, easy mode control by 5-bit parallel data and -COM mode control by serial data; (6)includes auto reset circuit.

The following is about the absolute maximum ratings (Ta=25, unless otherwise noted): (1)VCC, supply voltage: 6.5 V; (2)ICC, circuit current: 150 mA; (3)Pd, power dissipation: 1.7 W; (4)Topr. operating temperature: -20 to 75; (5)Tstg, storage temperature: -40 to 125.