M65839FP

The M65839FP is a kind of CMOS IC with microphone peripheral circuits of "Karaoke" equipment packaged on a single chip. It contains an echo generator for voice through microphones, ALC-equipped microphone amplifiers, microphone volumes, echo volumes, and line-mixing amplifiers, enabling reduction in the number of external parts and in the packaging area.

There are some features of M65839FP: (1)low noise due to digital echo with 16k-bit RAM; (2)high-performance microphone volumes and echo volume due to combined resistance-ladder attenuator and A/D converter (allowing serial control from microcomputer); (3)adaptable to excessively high input due to ALC-equipped microphpne amplifiers; (4)single 5 V power supply; (5)built-in auto power-ON reset circuit.

What comes next is about the absolute maximum ratings of M65839FP: (1)VCC, supply voltage; 6.0 V; (2)ICC, circuit current: 100 mA; (3)VI, input voltage: -0.3 to VCC+0.3 V; (4)Pd, power dissipation: 1100 mW; (5)Topr, operating temperature: -20 to +75; (6)Tstg, storage temperature: -40 to +125.