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Yamaha MU128 Service Manual page 15

Tone generator
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= m m m m
PD63200GS-E1 (XP867A00) DAC (Digital to Analog Converter)
PIN
NAME
I/O
NO.
1
4/8FS
I
2
D. GND
3
16/8 BIT
I
4
D. VDD
5
A. GND
6
R. OUT
O
7
A. VDD
8
A. VDD
m m m m PD71051GU-10-E2 (XS762A00) Serial Controller
= = = =
PIN
NAME
I/O
NO.
1
D2
I/O
2
D3
I/O
3
RxDATA
I
4
GND
-
5
D4
I/O
6
D5
I/O
7
D6
I/O
8
D7
I/O
9
/TxCLK
I
10
/WR
I
11
/CS
I
12
C//D
I
13
/RD
I
14
RxRDY
O
= PCM1800 (XU770A00) A/D Converter
PIN
NAME
I/O
NO.
1
VINL
I
2
VREF1
3
REFCOM
4
VREF2
5
VINR
I
6
RSTB
I
7
BYPAS
I
8
FMT0
I
9
FMT1
I
10
MODE0
I
11
MODE1
I
12
FSYNC
I/O
FUNCTION
4/8 Fs selection
Digital ground
16 bit/8 bit selection
Digital power supply
Analog ground
Channel R output
Analog power supply
FUNCTION
Data bus
Data bus
Receive data
Ground
Data bus
Transmitter clock
Write control
Chip select
Read control
Receive ready
FUNCTION
Analog input (L ch.)
Reference 1 decoupling cap.
Reference decoupling common
Reference 2 decoupling cap.
Analog input (R ch.)
Reset input active "L"
LCF bypass control
Audio data format 0
Audio data format 1
Master/Slave mode selection 0
Master/Slave mode selection 1
Frame sync. input/output
PIN
NAME
I/O
NO.
9
R. REF
10
L. REF
11
L. OUT
O
12
A. GND
13
LRCX/WD
I
14
LR/RSI
I
15
SI/LSI
I
16
CLK
I
PIN
NAME
I/O
NO.
15
TxRDY
O
16
SYNC/BRK
I/O
17
/CTS
I
18
TxEMP
O
19
TxDATA
O
20
CLK
I
21
RESET
I
22
/DSR
I
23
/RTS
O
24
/DTR
O
25
/RxCLK
I
26
VDD
-
27
D0
I/O
28
D1
I/O
PIN
NAME
I/O
NO.
13
LRCK
I/O
14
BCK
I/O
15
DOUT
O
16
SYSCK
I
17
DGND
18
VDD
19
CINNR
20
CINPR
21
CINNL
22
CINPL
23
VCC
24
AGND
FUNCTION
Channel R voltage reference
Channel L voltage reference
Channel L output
Analog ground
Left/right check, Word clock
Left/right selection, Channel R series input
Series input/Channel L series input
Clock
FUNCTION
Transmit ready
Synch. receiver/break
MODEM control
Transmitter empty
Transmit data
Main clock
Reset
MODEM control
Receive clock
Power supply (+5V)
Data bus
Data bus
FUNCTION
Sampling clock input/output
Bit clock input/output
Audio data output
System clock input
Digital ground
Power supply +5V
Anti-aliasing filter cap. (-) R ch.
Anti-aliasing filter cap. (+) R ch.
Anti-aliasing filter cap. (-) L ch.
Anti-aliasing filter cap. (+) L ch.
Analog power supply
Analog ground
MU128
15

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