5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
AUDIO OP
Power On Mute
Power Off Mute
MUTEL: LOW FOR MUTE
26
20
Amplifier Gain_dB_
32
36
AGAIN0
AGAIN1
0
1
0
0
0
1
1
1
GND
AMP-L
AMP-LIN
AMP-LIN
AMP-LIN
AMP-MUTE
AMP-R
AMP-RIN
AMP-RIN
AMP-RIN
GAIN1
GAIN1
GAIN2
GAIN2
L+
L+
L-
L-
MUTEL
MUTEL
MUTEL
OP_VCC1
OP_VCC1
PH-Lin
PH-Lin
PH-Rin
PH-Rin
POWER_OFF-MUTE
PWD_MT
PWD_MT
R+
R+
R-
R-
STBL
+5V
GND
GND
VCC-A
+5V
+12V
VCC-A
+5V
+12V
VCC-A
VCC-A
VCC-A
VCC-A
+5V
5Vstb
+12V
6VBuf1
+12V
+12V
AMP-MUTE
2
AMP-L
2
AMP-R
2
Title
Size
Document Number
Rev
Date:
Sheet
of
13
9
1.0
VIF 256p demo Board
Audio Amp. Interface
A3
Friday, November 27, 2009
Title
Size
Document Number
Rev
Date:
Sheet
of
13
9
1.0
VIF 256p demo Board
Audio Amp. Interface
A3
Friday, November 27, 2009
Title
Size
Document Number
Rev
Date:
Sheet
of
13
9
1.0
VIF 256p demo Board
Audio Amp. Interface
A3
Friday, November 27, 2009
R827
470R
R827
470R
M4
TPAD
M4
TPAD
1
R464
18K
R464
18K
1
2
XP6
120Hz_Ctrl
XP6
120Hz_Ctrl
1
2
3
4
5
6
R497
100K
R497
100K
1
2
R822
1K
R822
1K
R460
NC/100K
R460
NC/100K
1
2
C401
1uF
C401
1uF
1
2
C445
0.047uF
C445
0.047uF
1
2
R823
6.8K
R823
6.8K
C435
0.1u
C435
0.1u
1
2
R809
NC/1K
R809
NC/1K
R495
330K
R495
330K
1
2
C669
1n
C669
1n
R828
470R
R828
470R
C451
0.1u
C451
0.1u
1
2
R810
NC
R810
NC
C439
10uF
C439
10uF
1
2
VD13
1N4148
VD13
1N4148
+
C733
10uF
+
C733
10uF
1
2
R836
10K
R836
10K
1
2
C670
100pF
C670
100pF
C425
0.47uF
C425
0.47uF
1
2
R430
47K
R430
47K
1
2
M1
TPAD
M1
TPAD
1
R500
10/NC
R500
10/NC
1
2
R501
10/NC
R501
10/NC
1
2
VD12
1N4148
VD12
1N4148
C399
1uF
C399
1uF
1
2
R812
100K
R812
100K
R477
100K
R477
100K
1
2
C421
0.47uF
C421
0.47uF
1
2
R496
100K
R496
100K
1
2
XS27
HeadPhone
XS27
HeadPhone
L
1
WL
2
R
3
WR
4
AGND
5
C693
100pF
C693
100pF
C437
0.1u
C437
0.1u
1
2
C410
0.1u
C410
0.1u
1
2
C422
0.47uF
C422
0.47uF
1
2
R429
NC
R429
NC
1
2
C436
0.1u
C436
0.1u
1
2
CA129
100uF/16V
CA129
100uF/16V
C444
NC
C444
NC
1
2
M3
TPAD
M3
TPAD
1
-
+
N24B
AZ4558
-
+
N24B
AZ4558
7
6
5
4
8
H5
NC
H5
NC
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
C443
NC
C443
NC
1
2
R487
330K
R487
330K
1
2
C408
0.1u
C408
0.1u
1
2
H11
NC
H11
NC
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
+
CA134
220uF/25V
+
CA134
220uF/25V
C428
0.1u
C428
0.1u
1
2
R821
0R
R821
0R
+
CA130
47uF/25V
+
CA130
47uF/25V
1
2
R2A15108FP
N25
R2A15108FP
N25
VSA1
1
STBYL
2
CLK
3
MUTEL
4
IN1
5
AGND
6
AVCC
7
IN2
8
VREF
9
OFSDET
10
PROT
11
VSA2
12
OUTA
2
13
OUTA
2_13
14
VDA2
15
V
D
A
2_15
16
SPI
A2
17
HBA2
18
HBB2
19
SPI
B2
20
VDB2
21
V
D
B
2_21
22
OUTB
2
23
OUTB
2_23
24
VSB2
25
NC
26
GAIN2
27
GAIN1
28
CPRO
29
AGND_29
30
DVDD
31
VD
32
ROC
33
ROSC
34
NC_34
35
VSB1
36
OUTB
1
37
OUTB
1_37
38
VDB1
39
V
D
B
1_39
40
SPI
B1
41
HBB1
42
HBA1
43
SPI
A1
44
VDA1
45
V
D
A
1_45
46
OUTA
1
47
OUTA
1_47
48
EPAD
49
R816
4.7K
R816
4.7K
R499
10/NC
R499
10/NC
1
2
R436
10K
R436
10K
1
2
C450
0.1u
C450
0.1u
1
2
C658
0.1u
C658
0.1u
R834
220R
R834
220R
C666
10uF
C666
10uF
R861
10K
R861
10K
C426
0.47uF
C426
0.47uF
1
2
R819
47K
R819
47K
R833
22R
R833
22R
M5
TPAD
M5
TPAD
1
H9
NC
H9
NC
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
C684
10uF
C684
10uF
R808
NC
R808
NC
R815
47K
R815
47K
V24
3904
V24
3904
C402
1uF
C402
1uF
1
2
C653
NC/10uF
C653
NC/10uF
V25
3904
V25
3904
C423
0.47uF
C423
0.47uF
1
2
C441
0.047uF
C441
0.047uF
1
2
R432
47K
R432
47K
1
2
R806
0R
R806
0R
+
CA126
100uF/16V
+
CA126
100uF/16V
R835
47K
R835
47K
R842
39K
R842
39K
1
2
C440
10uF
C440
10uF
1
2
R829
100K
R829
100K
H8
NC
H8
NC
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
R824
22K
R824
22K
VD11
NC/1N4148
VD11
NC/1N4148
C446
10uF
C446
10uF
1
2
M2
TPAD
M2
TPAD
1
R489
330K
R489
330K
1
2
C433
0.1u
C433
0.1u
1
2
L74
22uH
L74
22uH
1
2
VD7
1N4148
VD7
1N4148
Z1
10V
Z1
10V
1
2
V23
3904
V23
3904
VD9
1N4148
VD9
1N4148
R807
NC/0R
R807
NC/0R
CA127
100uF/16V
CA127
100uF/16V
L68
22uH
L68
22uH
1
2
R461
82K
R461
82K
1
2
R832
33K
R832
33K
1
2
C680
10uF
C680
10uF
XP28
Ext_Amplifier
XP28
Ext_Amplifier
1
2
3
4
R463
NC/100K
R463
NC/100K
1
2
CA124
100uF/16V
CA124
100uF/16V
C683
1n
C683
1n
R507
10/NC
R507
10/NC
1
2
R853
39K
R853
39K
1
2
M6
TPAD
M6
TPAD
1
C448
NC
C448
NC
1
2
V22
3906
V22
3906
1
2
3
R431
NC
R431
NC
1
2
H12
NC
H12
NC
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
R465
0R
R465
0R
1
2
-
+
N24A
AZ4558
-
+
N24A
AZ4558
1
2
3
4
8
R831
33K
R831
33K
1
2
R811
NC/0R
R811
NC/0R
R813
0R
R813
0R
R826
47K
R826
47K
L73
22uH
L73
22uH
1
2
H7
NC
H7
NC
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
+
CA125 100uF/16V
+
CA125 100uF/16V
C449
0.1u
C449
0.1u
1
2
C447
NC
C447
NC
1
2
H3
NC
H3
NC
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
R462
0R
R462
0R
1
2
R851
47K
R851
47K
1
2
R817
47K
R817
47K
L70
22uH
L70
22uH
1
2
R486
330K
R486
330K
1
2
C432
0.1u
C432
0.1u
1
2
M7
TPAD
M7
TPAD
1
R476
100K
R476
100K
1
2
C429
0.1u
C429
0.1u
1
2
CA128
100uF/16V
CA128
100uF/16V
VD10
1N4148
VD10
1N4148
XP29
Speaker
XP29
Speaker
1
1
2
2
3
3
4
4
R838
22R
R838
22R
R837
47K
R837
47K
C442
10uF
C442
10uF
1
2
R840
220R
R840
220R
R814
1K
R814
1K
H6
NC
H6
NC
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
VD8
BAV99
VD8
BAV99
1
2
3
C434
0.1u
C434
0.1u
1
2
C438
0.1u
C438
0.1u
1
2
R839
47K
R839
47K
1
2
R847
10K
R847
10K
1
2
R825
47K
R825
47K
H10
NC
H10
NC
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
+
C732
10uF
+
C732
10uF
1
2
M8
TPAD
M8
TPAD
1
R830
100R
R830
100R
1
2
Z2
10V/NC
Z2
10V/NC
1
2