YMU762 Datasheet PDF | Yamaha





(PDF) YMU762 Datasheet PDF

Part Number YMU762
Description Mobile Audio 3
Manufacture Yamaha
Total Page 14 Pages
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Features: YMU762 MA-3 Mobile Audio 3 Outline MA-3 is a synthesizer LSI for mobile phones that realize advanced game sounds. This LSI has a built-in speaker amplifier, and thus, is an ideal device for output ting sounds that are used by mobile pho nes in addition to game sounds and ring ing melodies that are replayed by a syn thesizer. The synthesizer section adopt s “stereophonic hybrid synthesizer sy stem” that are given advantages of bo th FM synthesizers and Wave Table synth esizers to allow simultaneous generatio n of up to thirty two FM voices and eig ht Wave Table voices. Since FM synthesi zer is able to present countless voices by specifying parameters with only sev eral tens of bytes, memory capacity and communication band can be saved, and t hus, the device exhibits the features i n operating environment of mobile phone s such as allowing distribution of arbi trary melodies with voices. On the othe r hand, Wave Table synthesizer can pron ounce the voice built in ROM and arbitrary ADPCM/PCM voices from se.

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YMU762 datasheet
YMU762
MA-3
Mobile Audio 3
Outline
MA-3 is a synthesizer LSI for mobile phones that realize advanced game sounds.
This LSI has a built-in speaker amplifier, and thus, is an ideal device for outputting sounds that are used by mobile
phones in addition to game sounds and ringing melodies that are replayed by a synthesizer.
The synthesizer section adopts “stereophonic hybrid synthesizer system” that are given advantages of both FM
synthesizers and Wave Table synthesizers to allow simultaneous generation of up to thirty two FM voices and eight
Wave Table voices.
Since FM synthesizer is able to present countless voices by specifying parameters with only several tens of bytes,
memory capacity and communication band can be saved, and thus, the device exhibits the features in operating
environment of mobile phones such as allowing distribution of arbitrary melodies with voices.
On the other hand, Wave Table synthesizer can pronounce the voice built in ROM and arbitrary ADPCM/PCM voices
from sequencer by the download of the melody with voices etc..
MA-3 has a built-in hardware sequencer that helps to realize complex play without heavily loading the host CPU.
The device also has a built-in circuit for controlling vibrators and LEDs synchronizing with play of music.
Features
MA-3 has features as described below.
Simultaneous generation of up to 40 tones: FM + Wave Table stereophonic hybrid synthesizer.
Polyphonic synthesizer specification.
Has built-in default voices for FM and Wave Table synthesizers in the ROM, and the voices can be downloaded to
RAM.
Fundamental waveforms for FM and algorithm are improved compared with YMU759 (MA-2), and voice
parameters of detune etc. are added.
Stream replay with ADPCM / PCM (shared use of Wave Table section).
Software interrupt mechanism for external synchronization.
Equipped with 8 bit parallel I/F for control from CPU.
Equipped with speaker amplifier and equalizer circuit.
Equipped with vibration control circuit, and LED lighting control circuit.
Has built-in PLL to support inputting of master clock up to 20 MHz.
Contains a 16-bit stereophonic D/A converter.
Equipped with a stereophonic output terminal for headphone.
Supports power down mode.
Digital power supply: 2.7V to 3.3V (Typ 3.0V)
Analog power supply: 2.7V to 4.5V (Typ 3.6V)
32-pin QFN plastic package
The contents of this booklet are target specifications and they are subject to change without
a prior notice. Please check the finalized specifications before actually using this LSI.
YAMAHA CORPORATION
YMU762 CATALOG
CATALOG No.:LSI-4MU762A3
2002.9

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