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PDF ( 数据手册 , 数据表 ) YMU757B

零件编号 YMU757B
描述 MA-1C
制造商 YAMAHA CORPORATION
LOGO YAMAHA CORPORATION LOGO 


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YMU757B 数据手册, 描述, 功能
YMU757B
MA-1C
Outline
The YMU75B is a high quality melody LSI for cellular phone handsets, supporting the data format for various
applications including ringing and holding melody sounds. The built-in Yamaha's original FM synthesizer can create
various timbres, and its built-in sequencer can produce up to 4 different sounds with 4 different timbres simultaneously
without placing a load to the controller.
The serial port controller interface enables real time reproduction of the melody data via FIFO, without the limitation of
the data capacity.
With a built-in amplifier to drive the dynamic type speaker, it is possible to connect the speaker directly.
This LSI also has an analog-output terminal for the phone jack. In the stand-by mode, the power consumption
can be reduced to 1 µA or less while waiting.
Features
YAMAHA's original FM sound generator function
Built-in sequencer
Capable of producing up to 4 different sounds simultaneously (4 independent timbres available).
Built-in output 400mW speaker amplifier
Built-in circuit for sound quality correcting equalizer
Built-in serial interface
2.688, 8.4, 12.6, 14.4, 19.2, 19.68, 19.8 and 27.82 MHz serial clock inputs support
And support the mode which set to optional frequency from 2.685MHz to 27.853MHz at 55.93kHz intervals
Analog output for ear phone
Power down mode (Typ 1µA or less)
Power supply voltage (Digital and Analog): 3.0V±10 %
20-pin QFN
YAMAHA CORPORATION
YMU757B CATALOG
CATALOG No.:LSI-4MU757B2
2000.4







YMU757B pdf, 数据表
YMU757B
Register map
Index b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
Description
$00h BL1 BL0 NT3 NT2 NT1 NT0 CH1 CH0 VIB TI3 TI2 TI1 TI0 TK2 TK1 TK0 Note data
0 0 1 1 0 0 CH1 CH0 VCHE TI3 TI2 TI1 TI0 VCH2 VCH1 VCH0 Rest data
$10 - 2Fh ML2 ML1 ML0 VIB EGT SUS RR3 RR2 RR1 RR0 DR3 DR2 DR1 DR0 AR3 AR2 Timbre data (Left data
$30h
$31h
AR1 AR0 SL3 SL2 SL1 SL0 TL5 TL4 TL3 TL2 TL1 TL0 WAV FL2 FL1 FL0
0 V32 V31 V30 0 V22 V21 V20 0 V12 V11 V10 0 V02 V01 V00
0 0 0 0 0 0 0 0 T7 T6 T5 T4 T3 T2 T1 T0
for 1 timbre)
Timbre allotment data
Tempo data
$32h 0 0 0 0 0 0 0 0 0 0 0 0 0 0 CLR ST FM Control
$33h 0 0 0 0 0 0 0 0 0 0 0 0 0
CLKSEL
CLK_I select
$34h
$35h
0 0 0 0 0 0 0 0 0 0 IRQE
IRQ Point
IRQ Control
0 0 0 0 0 0 0 0 0 0 0 V4 V3 V2 V1 V0 Speaker Volume
$36h 0 0 0 0 0 0 0 0 0 0 0 V4 V3 V2 V1 V0 FM Volume
$37h 0 0 0 0 0 0 0 0 0 0 0 V4 V3 V2 V1 V0 HPOUT Volume
$38h 0 0 0 0 0 0 0 0 0 0 0 AP4 AP3 AP2 AP1 DP Power Management
$39h 0 0 0 0 0 0 0
CLKSET
CLK_I Select
$40 - EFh
Reserved (access prohibited)
Reserved
$F0 - FFh
For LSI TEST(access prohibited)
LSI TEST
Note : Making an access to the spaces marked "Reserved" and "For LSI TEST" in the above table is prohibited.
Be sure to write "0" for the empty bit, although writing "1" there will not affect the LSI operation.
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YMU757B equivalent, schematic
YMU757B
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]
Fh
Eh
Dh
Ch
Bh
Ah
9h
8h
7h
6h
5h
4h
3h
2h
1h
0h
Attack rate
From -48 to 0dB (ms)
0
4.65
9.30
18.59
37.19
74.38
148.76
297.51
595.03
1190.05
2380.10
4760.21
9520.42
19040.84
Decay rate,
release rate
from 0 to -48dB (ms)
2.23
8.94
17.88
35.76
71.52
143.04
286.07
572.14
1144.25
2288.56
4577.12
9154.25
18308.50
36617.00
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.
WAV=0
WAV=1
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.
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