29
IC35: 74LVC574
LOUT1-
LOUT1+
DZF3
DZF2
DZF1
CAD0
ACKSN
PDN
BICK
MCLK
DVDD
5
AVSS
AVDD
VREFH
ROUT4+
ROUT4-
DIF0
DSDR3
DSDL3
DSDR2
DSDL2
DSDR1
AK4358VQ
Top View
DVSS
2
DSDL1
1
2
3
4
5
6
7
8
9
10
11
1
13
14
15
16
17
18
19
20
21
22
23
24
36
35
34
33
32
31
30
29
28
27
26
25
48
47
46
4
44
43
42
41
40
39
38
37
ROUT
1
+
RO
U
T
1
-
LO
U
T
2+
ROU
T
2
-
LO
U
T
3+
LO
U
T
3
-
ROU
T
3
+
ROU
T
3
-
LO
U
T
4+
LO
U
T
2-
ROU
T
2
+
LO
U
T
4-
SDT
I4
SDT
I1
SDT
I2
SDT
I3
L
RCK
CCL
K/
S
C
L
CD
T
I/S
DA
CS
N/
C
A
D
1
DC
L
K
DS
D
L
4
I2
C
DS
DR
4
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
OE
1D
2D
3D
4D
5D
6D
7D
8D
GND
V
CC
1Q
2Q
3Q
4Q
5Q
6Q
7Q
8Q
CLK
logic diagram (positive logic)
OE
CLK
1D
1Q
To Seven Other Channels
C1
1
11
2
19
1D
Summary of Contents for ER2500
Page 11: ...9 8 POWER AMPLIFIER DC OFFSET ADJUSTMENT ...
Page 12: ...10 Personal notes ...
Page 13: ...11 9 WIRING DIAGRAM U S only U S only ...
Page 14: ...12 10 BLOCK DIAGRAM ...
Page 15: ...13 Front 11 SCHEMATIC DIAGRAM ...
Page 16: ...14 MCU Function ...
Page 17: ...15 DSP ...
Page 18: ...16 AMP1 ...
Page 19: ...17 AMP2 ...
Page 20: ...18 SMPS N1S S1S ...
Page 21: ...19 SMPS U1S ...
Page 33: ...31 IC42 TC74HCU04AP AF AFN ...
Page 34: ...32 14 EXPLODED VIEW AND PARTS LIST N only U only S only S U only ...
Page 68: ...Personal notes ...