DGND
DGND
DGND
DGND
DGND
T
DGND
DGND
T
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
T
T
T
DGND
T
DGND
DGND
DGND
DGND
GNDDIG2
TESTMODE
SA
SCL
SDA
INTLINE
PWDN
RESET
SDI
LRCKI
BICKI
AGNDPLL
VREGFILT
TWARNEXT/FFX4B
EAPD/FFX4A
FFX3B
FFX3A
GNDDIG1
VDDDIG1
RESERVED15
RESERVED14
RESERVED13
RESERVED12
RESERVED11
RESERVED10
RESERVED9
RESERVED8
RESERVED7
RESERVED6
RESERVED5
RESERVED4
RESERVED3
RESERVED2
RESERVED1
VDD_REG
OUT1A
GND1
VCC1
OUT1B
OUT2A
VCC2
GND2
OUT2B
VSS
VCC_REG
MCLK
GND_REG
VDDDIG2
MUTE CIRCUIT
L+
L-
R-
R+
C644
1000P
C631
0.1U
C632
1U
C630
1U
C610
330P
C618
1000P
C639
100P
C638
100P
C637
100P
C636
100P
0.1U
C633
0.1U
C613
C611
0.1U
C653
1U
47
46
45
44
43
42
41
40
39
38
37
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
11
10
9
8
7
6
5
4
3
2
1
36
12
48
U601
STA380BW
C651
10U
C650
1U
1000P
C628
0.22U
C625
AMP_RESET
C605
0.01U
MUTE
AMP_RESET
3.3V_AMP
R663
4K7 NC
10K
R606
10K
R637
R653
10K
3.3V_AMP
AMP_MUTE
R608
4K7
B
C
E
Q603
BT3904
R607
4K7
R661
56K
B
E
C
Q601
BT3906
R658 10K
MUTE1
B
C
E
BT3904
Q604
R660
10K
3.3V_AMP
35V
220U
C634
R654
56K
R655
10K
D602
LL4148
D601
LL4148
0R
R651
R659
100R
MUTE
MUTE2
1
2
3
4
P601A
1
2
3
4
P601
OUT_R-
OUT_R+
L606
120R
L601
120R
C606
2U2
V_AUDIO
R662
0R
R635
10K
+3_3V_DC
+3_3V_DC
+3_3V_DC
3.3V_AMP
V_AUDIO
0.01U
C604
0.1U
C603
I2S_MCLK
L+
P_ON/OFF
0.01U
C652
C607
0.01U
+3_3VSTB
L-
1U
C641
16V
220U
C640
R631
100R
22P
C602
C601
22P
4K7
R602
33R
R604
C643
1000P
3.3V_AMP
R657
100K
I2S_LRCLK
I2S_DATA
I2S_DATA
I2S_LRCLK
I2S_BCK
I2S_MCLK
AUBCK_OUT
AUSD_OUT
AUMCK_OUT
AUWS_OUT
R632
100R
R611
22R
I2S_BCK
0.1U
C608
OUT_L+
1000P
C619
C617
0.22U
C615
0.22U
0.1U
C612
5R6
R613
R612
5R6
22UH
L603
22UH
L602
R634
100R
R633
100R
B
C
E
Q602 BT3904
V_AUDIO
OUT_L-
C614
0.1U
0.22U
C616
C626
0.22U
0.1U
C624
L604
22UH
L605
22UH
C623
0.1U
5R6
R621
R622
5R6
C622
0.1U
0.1U
C621
0.22U
C627
C629
1000P
330P
C620
22R
R620
0.01U
C642
3.3V_AMP
R603
33R
R601
4K7
SDA
SCL
2K2
R638
R636
4K7
L+
L-
C645
1000P
R+
R-
Summary of Contents for LED28T3520
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