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参数资料
| 型号： | YMU757B-QZ |
| 元件分类： | 音频合成 |
| 英文描述： | TONE/MUSIC SYNTHESIZER, PQCC20 |
| 封装： | LEAD FREE, QFN-20 |
| 文件页数： | 8/43页 |
| 文件大小： | 990K |
| 代理商： | YMU757B-QZ |
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YMU757B
-16-
SL3 - SL0 : Sustain level setting
The sustain level refers to the level at which shifting from the decay rate to the release rate takes place in the case of
the damped sound, and the volume level of the sound being sustained in the case of the sustained sound.
SL ->
SL3
SL2
SL1
SL0
Weighted bit (dB)
-24
-12
-6
-3
AR[3:0]
DR[3:0]
RR[3:0]
Attack rate
From -48 to 0dB (ms)
Decay rate,
release rate
from 0 to -48dB (ms)
Fh
0
2.23
Eh
4.65
8.94
Dh
9.30
17.88
Ch
18.59
35.76
Bh
37.19
71.52
Ah
74.38
143.04
9h
148.76
286.07
8h
297.51
572.14
7h
595.03
1144.25
6h
1190.05
2288.56
5h
2380.10
4577.12
4h
4760.21
9154.25
3h
9520.42
18308.50
2h
19040.84
36617.00
1h
∞
0h
∞
TL5 - TL0 : Total level setting
This function is used to set the envelope level.
TL
TL5
TL4
TL3
TL2
TL1
TL0
Weighted bit (dB)
-24
-12
-6
-3
-1.5
-0.75
SUS : Sustain On/OFF setting
"0" : OFF
"1" : ON
The release rate changes to "6" (2.29s) when the sound length comes to the end.
WAV : Waveform selection
The modulator and carrier can generate the SIN wave but when this bit setting is made, it is possible to generate a
half-wave rectified waveform of the SIN wave, the timbres in wider range can be created.
"0" : SIN wave
"1" : Half-wave rectified waveform of the SIN wave.
FL2 - FL0 : Feed-back setting
This function is effective for the operator on the carrier side only. It is used to set the feedback modulation rate.
Be sure to set "0" for the operator on the modulator side. This is effective when generating the strings.
FL [2:0]
0
1
2
3
4
5
6
7
Modulation rate
0
π/16
π/ 8
π/ 4
π/ 2
π
2π
4π
WAV=0
WAV=1
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