
A
B
J4
WHITE (LEFT) RED (RIGHT)
J5
WHITE (LEFT) RED (RIGHT)
C
D
DB25 Female Connectors for Conversion to XLR Connectors
3.3V
A3V
OUT3 (L)
OUT3 (R)
OUT4 (L)
OUT4 (R)
P8
9
10
9
10
P9
1
14
1
U19
OUT1 (L)
OUT1 (R)
OUT2 (L)
OUT2 (R)
2
14
2
15
1
3.3V
1
2
TP9
U27
4
2
SN74LVC1G08
SOT23-5
28
29
27
26
21
22
20
19
18
15
34
30
31
35
2
3
14
49
ABCLK
ALRCLK
ASDATA1
ASDATA2
DBCLK
DLRCLK
DSDATA1
DSDATA2
DSDATA3
DSDATA4
CCLK
CIN
COUT
CLATCH
MCLKI_XI
MCLKO_XO
RESET
NC1
ADC1LN
ADC1LP
ADC1RN
ADC1RP
ADC2LN
ADC2LP
ADC2RN
ADC2RP
OL1N
OL1P
OR1N
OR1P
OL2N
OL2P
OR2N
OR2P
OL3N
OL3P
OR3N
OR3P
OL4N
OL4P
54
53
56
55
58
57
60
59
37
36
39
38
41
40
43
42
7
6
9
8
11
10
4 6 4 6
IN1 (L) IN1 (R) IN2 (L) IN2 (R)
3 5 3 5
NOTE: THE NUMBER INSIDE EACH OF THE CIRCLES IS THE ACTUAL
PIN NUMBER FOR THE RESPECTIVE CONNECTOR.
A3V
R461
562.0
0603
C258
390PF
0603
C259
5600PF
0805
3
4
5
6
7
8
9
10
11
12
13
16
17
18
19
20
21
22
23
24
25
DB25F
3
4
5
6
7
8
9
10
11
12
13
15
16
17
18
19
20
21
22
23
24
25
DB25F
1
2
50
NC2
OR4N
13
63
NC3
OR4P
12
64
NC4
LF
61
AD1939_LF
C266
0.01UF
23
VSUPPLY
CM
52
AD1939_CM
0402
24
VSENSE
FILTR
47
25
VDRIVE
C257
C256
C254
C255
10UF
0.1UF
10UF
0.1UF
AD1939
0805
0603
0805
0603
LQFP64
C262
22PF
0805
R486
10.0K
0402
HEADPHONE OUT (SHARED WITH OUT3/DAC5&6)
3.3V
3.3V
R262
33
0402
R257
33
R496
33
0402
R495
33
6
R493
5K
RES_POT_DUAL
1
CT59
10UF
CAP002
R488
10.0K
0402
6
U31
7
R485
0
0402
CT58
47UF
ELEC_6MM
J8
0402
0402
2
R489
5
1
3
R259
10K
0402
R494
10K
0402
R263
33
SW23: HEAD PHONE ENABLE
DEFAULT: ALL OFF
100.0
0402
AD8397
SOIC_N8_EP
5
4
3
0402
3
R258
33
0402
1
2
SW23
DIP2
4
3
C263
22PF
0805
R492
0
0402
CT57
47UF
ELEC_6MM
2
CON001
SWT020
R487
3.3V
NOTE: A USER NEEDS TO TURN SWITCH SW23
10.0K
0402
R484
R483
3.3V
ON IN ORDER TO USE THE HEAD PHONE CONNECTOR.
5
R493
5K
RES_POT_DUAL
4
CT60
10UF
CAP002
R491
10.0K
0402
2
U31
1
100K
0402
100K
0402
R260
10K
0402
U12
4
AD1939 OSC
R261
33
LOOPBACK CONNECTOR
FOR TESTING PURPOSES ONLY
3
R490
100.0
0402
3
AD8397
SOIC_N8_EP
1
OE
VDD
3
OUT
0402
A3V
DEFAULT: ALL OFF
GND
12.288MHZ
OSC003
3.3V
1
SW24
8
5V
5V
2
3
7
6
4
C142
0.01UF
0402
C136
0.01UF
0402
C137
0.01UF
0402
C138
0.01UF
0402
C139
0.01UF
0402
C140
0.01UF
0402
C141
0.01UF
0402
4
1
DIP4
SWT018
SW25
5
8
C271
0.1UF
0402
C264
0.1UF
0402
C265
10UF
0805
ANALOG
DEVICES
20 Cotton Road
Nashua, NH 03063
PH: 1-800-ANALOGD
4
2
3
4
7
6
5
Title
ADSP-21489 EZ-BOARD
AUDIO PAGE 1
AD1939 OSC
DIP4
SWT018
Size
C
Board No.
A0228-2009
Rev
0.1B
A
B
C
Date
3-18-2010_13:45
D
Sheet
8
of
16