Analog Devices ADAU1977, Руководство пользователя

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Evaluation Board User Guide UG-600
Figure 7. EVAL-ADAU1977Z Schematic, Page 2 of 6
INPUT CH1
MIC BIAS SELECT P
MIC BIAS SELECT N
FAULT GEN SELECT P
FAULT GEN SELECT N
AC COUPLING CAP BYPASS
S
HO
RT
P
&N
INPUT CH2
MIC BIAS SELECT P
MIC BIAS SELECT N
FAULT GEN SELECT P
FAULT GEN SELECT N
AC COUPLING CAP BYPASS
S
HO
RT
P
&N
INPUT CH3
MIC BIAS SELECT P
MIC BIAS SELECT N
FAULT GEN SELECT P
FAULT GEN SELECT N
AC COUPLING CAP BYPASS
S
HO
RT
P
&N
INPUT CH4
MIC BIAS SELECT P
MIC BIAS SELECT N
FAULT GEN SELECT P
FAULT GEN SELECT N
AC COUPLING CAP BYPASS
S
HO
RT
P
&N
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
INPUT BUFFER FOR LEVEL SHIFTING INPUT
ANALOG INPUTS
CM INPUT SELECT
ADJUST FOR DESIRED CM LEVEL
R106
499Ω
R108
499Ω
R105
301Ω
R107
301Ω
1
2
3
4
S12
1
2
3
4
S7
A B
1
2
3
J22
TP30
A
B
1
2
3
J20
HDR-
3
W
AY
A
B
1
2
3
J15
HDR-
3
W
AY
RING
SLEEVE
TIP
J17
C43
1.0nF
C37
1.0nF
1
2
JP2
1
2 3
4
S10
C40
OPEN
C36
OPEN
+
C41 10µF
+
C38 10µF
TP33
R110
499Ω
R113
499Ω
R109
301Ω
R112
301Ω
1
2
3
4
S18
1
2
3
4
S15
A B
1
2
3
J31
TP49
A
B
1
2
3
J30
HDR-
3
W
AY
A
B
1
2
3
J27
HDR-
3
W
AY
RING
SLEEVE
TIP
J28
C78
1.0nF
C60
1.0nF
1
2
JP3
1
2 3
4
S16
C77
OPEN
C56
OPEN
+
C74 10µF
+
C57
10µF
R115
499Ω
R117
499Ω
R114
301Ω
R116
301Ω
1
2
3
4
S23
1
2 3
4
S20
A B
1
2
3
J41
TP56
A
B
1
2
3
J40
HDR-
3
W
AY
A
B
1
2
3
J36
HDR-
3
W
AY
RING
SLEEVE
TIP
J38
C89
1.0nF
C85
1.0nF
1
2
JP5
1
2 3
4
S21
C88
OPEN
C84
OPEN
+
C90 10µF
+
C86
10µF
R119
499Ω
R121
499Ω
R118
301Ω
R120
301Ω
1
2
3
4
S29
1
2
3
4
S25
A B
1
2
3
J51
TP76
A
B
1
2
3
J49
HDR-
3
W
AY
A
B
1
2
3
J46
HDR-
3
W
AY
RING
SLEEVE
TIP
J47
C103
1.0nF
C92
1.0nF
1
2
JP7
1
2 3
4
S26
C102
OPEN
C91
OPEN
+
C100 10µF
+
C93
10µF
1
2
J19
1
2
J29
1
2
J39
1
2
J48
2
–
3
+
1
O
8
V+
4
V–
U1-A
R16
10.0kΩ
R17
10.0kΩ
+
C
18
10µ
F
R
13
100kΩ
C19
10µF
RING
SLEEVE
TIP
J9
1
2
JP1
C16
22pF
R12
10.0Ω
6
–
5
+
7
O
U1-B
R7
10.0kΩ
R9
10.0kΩ
+
C5
10µ
F
R8
100kΩ
C10
10µF
C6
22pF
R6
10.0Ω
R4
10.0kΩ
R3
10.0kΩ
R2
10.0kΩ
R1
10.0kΩ
CW
2
1 3
R5
1 2
3
5
7
9
11
4
6
8
10
12
J2
HEADER_12WAY_UNSHROUD
C1
C2
5
4
3
2
1
S11
C1
C2
5
4
3
2
1
S6
C1
C2
5
4
3
2
1
S17
C1
C2
5
4
3
2
1
S14
C1
C2
5
4
3
2
1
S22
C1
C2
5
4
3
2
1
S19
C1
C2
5
4
3
2
1
S28
C1
C2
5
4
3
2
1
S24
C12
0.10µF
C13
0.10µF
A B
1
2
3
J1
TP4
T
P
1
6
T
P
5
T
P
5
2
T
P
3
2
T
P
2
6
T
P
5
8
T
P
5
1
T
P
3
9
T
P
6
0
T
P
5
9
T
P
5
3
T
P
6
4
T
P
7
7
T
P
7
0
T
P
7
5
R122
0Ω
R123
0Ω
R124
0Ω
R125
0Ω
R126
0Ω
R127
0Ω
R128
0Ω
R129
0Ω
AIN1N
[1,6]
AIN1P
[1,6]
VBAT [2,6]
[1,2,4]
MICBIAS_CH1 [2]
MICBIAS_1977 MICBIAS_EXT
MICBIAS_CH1
+OUT_BUFFER [2]
[2] –OUT_BUFFER
AIN_CH1–
F
FAULT_IN–
[2,6]
VBAT [2,6]
[1,2,4]
MICBIAS_CH1 [2]
F
FAULT_IN–
[2,6]
VBAT [2,6]
[1,2,4]
MICBIAS_CH1 [2]
F
FAULT_IN–
[2,6]
AIN2N
[1,6]
AIN2P
[1,6]
MICBIAS_1977 MICBIAS_EXT MICBIAS_CH2
+OUT_BUFFER [2]
–OUT_BUFFER [2]
AIN_CH2–
AIN3N
[1,6]
AIN3P
[1,6]
MICBIAS_1977 MICBIAS_EXT MICBIAS_CH3
+OUT_BUFFER [2]
–OUT_BUFFER [2]
AIN_CH3–
AIN4N
[1,6]
AIN4P
[1,6]
MICBIAS_1977 MICBIAS_EXT
MICBIAS_CH4
+OUT_BUFFER [2]
–OUT_BUFFER [2]
AIN_CH4–
[2]
[2]
HVDD
HVSS
[2] CM_IN+
+OUT_BUFFER [2]
+IN_BUFFER
-IN_BUFFER
[2] CM_IN–
–OUT_BUFFER [2]
MICBIAS
VBAT
[1,2,4]
CM_IN+ [2]
CM_IN– [2]
2/3MICBIAS
1/3MICBIAS
1/2VBAT
HVSS
HVDD
MICBIAS_1977 MICBIAS_EXT
NOTES ON JUMPER SELECTION
J2: USE FOR SELECTING THE CM LEVEL FOR THE EXTERNAL INPUT
J1, J22, J31, J41, J51: USE FOR SELECTING INTERNAL OR EXTERNAL MICBIAS FOR INPUTS
S12, S18, S23, S29: USE FOR SELECTING THE MICBIAS REINPUTS
S5, S15, S20, S25: USE FOR SELECTING THE MICBIAS RESISTOR -INPUTS
J20, J15, J30, J27, J40, J36, J49, J46: USE FOR SELECTING THE DIRECT OR BUFFERED INPUT
J19, J29, J39, J48: USE FOR SHORTING THE +/- INPUT PINS FOR DIAGNOSTICS TEST
S11, S6, S17, S14, S22, S19, S28, S24: USE FOR GENERATING FAULT ON INPUT PINS FOR DIAGNOSTICS TESTING
1
1751-
007
Rev. 0 | Page 11 of 27