Yamaha DTXT2S, Service Manual

Page: 15 / 95

15
DTXTREME IIS
■
IC BLOCK DIAGRAM
（
IC
ブロック図）
PIN
No.
NAME I/O FUNCTION
PIN
No.
NAME I/O FUNCTION
1
2
3
4
5
6
7
8
9
10
11
12
VINL
VREF1
REFCOM
VREF2
VINR
RSTB
BYPAS
FMT0
FMT1
MODE0
MODE1
FSYNC
I
-
-
-
I
I
I
I
I
I
I
I/O
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 13
14
15
16
17
18
19
20
21
22
23
24 LRCK
BCK
DOUT
SYSCK
DGND
VDD
CINNR
CINPR
CINNL
CINPL
VCC
AGND
I/O
I/O
O
I
-
-
-
-
-
-
-
-
Sampling clock input/output
Bit clock input/output
Audio data output
System clock input
Digital ground
Power 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
PCM1800E/2K (XU770A00) A/D Converter
YM3437C-F (XM530A00) DIT2 (Digital Format Interface Transmitter)
PIN
NO.
I/O FUNCTION NAME
PIN
NO.
I/O FUNCTION NAME
1
2
3
4
5
6
7
8
Vss
MCLK
DM0
DM1
RES
WCIN
DIN
V
DD
I
I
I
I
I
I
Ground
Master clock input
DIN/BCLK/WCLK format select
DM1,DM0=0,0 DSP,LDSP (64 bit,LSB first)
DM1,DM0=0,1stereo,DSP (64 bit,MSB first)
DM1,DM0=1,0 DSP2 (128 bit,MSB first)
DM1,DM0=1,1 BB (64 bit,MSB first)
System reset
Word clock input
Digital audio serial data input
Power supply (+5 V)
9
10
11
12
13
14
15
16
MUTE
VFL
CCK
CIN
CLD
CNTR
CSM
DOUT
I
I
I
I
I
I
I
O
Mute
Validity flag
C,U bit clock input/C bit data input
C,U bit data input/U bit data input
End of C,U bit input/16,20 bit/24 bit select
32 bit counter reset/Top of block
Channel status input mode select
CSM=0 Asynchronous mode
CSM=1 Synchronous mode
Digital interface formatted data output
DM: IC223
DM: IC117
NJM2904M (XV190A00)
Dual Operational Amplifier
JK: IC603, 612, 613
TC7W32FU(TE12L) (XQ173A00)
Dual 2-Input OR
DM: IC216
74AHC32DT (XZ103A00)
OR
DM: IC008, 015, 119, 214
74HCU04DT (XZ110A00)
74AHC04DT (X2169A00)
Hex Inverter
DM: IC120, 215
NJM4556AM(T1) (XQ138A00)
UPC4570G2 (XF291A00)
Dual Operational Amplifier
DM: IC005, 220-222
JK: IC811
PN: IC708
TC7S32F (XM588A00)
OR
DM: IC014, 018
1 1A
2
3
4
5
6
7
1Y
2A
2Y
3A
3Y
GND 8
9
10
11
12
13
14
Vcc
6A
6Y
5A
5Y
4A
4Y
1
2
3
4 -V
8
7
6
5
Output A +V
Non-Inverting
Input A
-DC Voltage Supply
+DC Voltage
Supply
Output B
Inverting
Input B
Non-Inverting
Input B
Inverting
Input A
+ -
+ -
1
2
3
4 GND
8
7
6
5
Output A +V
Non-Inverting
Input A
Ground
+DC Voltage
Supply
Output B
Inverting
Input B
Non-Inverting
Input B
Inverting
Input A
+ -
+ -
Vcc
OUT
1
2
3 4
5 IN A
IN B
Vss
Vcc
2B
2A
GND
1
2
3
4 5
6
7
8 1A
1B
2Y
1Y
1 1A
2
3
4
5
6
7
1B
1Y
2A
2B
2Y
GND 8
9
10
11
12
13
14
V
CC
4B
4A
4Y
3B
3A
3Y