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參數(shù)資料
| 型號： | YMU759-Q |
| 元件分類： | 音頻合成 |
| 英文描述： | TONE/MUSIC SYNTHESIZER, PQCC32 |
| 封裝： | PLASTIC, QFN-32 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 400K |
| 代理商： | YMU759-Q |
YMU759
MA-2
YAMAHA CORPORATION
YMU759 CATALOG
CATALOG No.:LSI-4MU759A0
2000.5
PRELIMINARY
May 8 .2000
Outline
YMU759 is a synthesis LSI for portable telephone that is capable of playing high quality music by utilizing FM
synthesizer and ADPCM decoder that are included in this device. As a synthesis, YMU759 is equipped with
Yamaha’s original FM synthesizer, with which the device is capable of simultaneously generating up to 16 voices
with different tones. Since the device is capable of generating ADPCM data simultaneously synchronous with the
play of the FM synthesizer, various sampled voices can be used as sound effects.
Since the play data of YMU759 are interpreted at anytime through FIFO, the length of the data (playing period) is
not limited, so the device can flexibly support applications such as incoming call melody distribution service.
The hardware sequencer built in this device allows playing of complex music without giving excessive load to the
CPU of the portable telephones. Moreover, the registers of the FM synthesizer can be operated directly for real time
sound generation, allowing, for example, utilization of various sound effects when using the game software installed
in the portable telephone.
Features
Equipped with
FM sound generator function and ADPCM playback function.
Number of voices simultaneously generated
When only 2-operator tones are used: up to 16 voices can be generated simultaneously.
When only 4-operator tones are used: up to 8 voices can be generated simultaneously.
Built-in 4-bits 1ch ADPCM decoder, and supports two kinds of sampling frequency, 4 kHz and 8 kHz.
Built-in output 550mW(AVDD=3.6V) speaker amplifier:
Built-in hardware sequencer.
Built-in circuit for sound quality correcting equalizer.
Supports stereophonic output.
Built-in 16-bit stereophonic D/A converter.
Provided with a stereophonic analog output terminal for headphone.
4 wire serial interface or 12 wire parallel interface can be selected.
PLL is built-in to support master clock input in 2 MHz to 20 MHz range.
Supports power down mode. (Typical current: 1 uA or less)
Power supply is divided into analog power supply for speaker amplifier and power supply for the others.
Analog power supply for speaker amplifier (SPVDD): 2.7V~4.5V(Typ 3.6V).
Digital power supply for the others(VDD): 2.7V~3.3V(Typ 3.0V)
32-pin plastic QFN.
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.
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