64 POLYPHONY, HIGH-GRADE PCM SOUND GENERATOR LSI

ML2864 is a further development of the popular ML2870A with twice the number of polyphonies, additional PCM Audio playback, mode 2 added to its SPI Interface and quadrupled Analog output voltage. It is a highly sophisticated PCM sound generator LSIs primarily, but not exclusively designed for cell phones and PDAs. It is also capable of playing ADPCM and PCM compressed speech and sound data and PCM. With an on-chip high-quality General MIDI sound set, the ML2864 plays 64 polyphonies simultaneously with 16 timbres. Using the on-chip three FIFOs which store musical score data, MIDI messages and ADPCM Audio data, a fantastic music ringer subsystem CAN readily be built around this chip. Also provided are ports to drive a ringing vibrator , an LCD backlight and four PWM-driven LED outputs. CPU control is possible in either parallel or serial, while a comprehensive Register structure allows easy programming. The chip contains an orchestra of musical instruments, a symphony on silicon, for modern cell phones and more. By Oki Semiconductor
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ML2864 Application circuits
ML2864 circuits
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