Product Summary

The ML2871 is a PCM-based hi-grade sound generator LSI, develped specifically for music ringers as used in cellular/PHS phones. With an on-chip high-quality General MIDI sound set, the ML2871 is capable of playing 16 tones and 32 polyphonies simultaneously. Using the on-chip three FIFOs which store musical score data, MIDI message and ADPCM audio data, a fantastic music ringer subsystem can readily be built around this chip. Applications are Mobile phone, PHS, Fax, PDA.

Parametrics

ML2871 absolute maximum ratings: (1)Supply Voltage VDD Ta=25°C: -0.3 to +5.0 V; (2)Input Voltage: VIN -0.3 to VDD+0.3 V; (3)Input Voltage: VIN -0.3 to +5.5 V; (4)Power Dissipation Pd: 320 mW; (5)Storage Temperature TSTG: -55 to +125 °C; (6)Master clock frequency fCLK: 2.7 to 34 MHz.

Features

ML2871 features: (1)Supports GM System level 1; (2)On-chip high-quality GM sound set; (3)128 timbres + 48 percussions embedded; (4)16 timbres, 32 polyphonies simultaneously (default setting is 24); (5)5V open drain ports with current control for vibrator, front panel light, LED x 4; (6)3-wire serial / 8-bit parallel bus selectable; (7)FIFO embedded for CPU power reduction; (8)Power down current: 1μA (typ.); (9)Operating current: 60mA (max.); (10)Power supply: +2.7 ~ 3.3V; (11)Operating temperature: -20 ~ +85ºC; (12)Internal stereo earphone amplifier & DAC.

Diagrams

ML2871 pin connection