Usb Circuit - Panasonic SA-AK180PN Service Manual

16.4. USB Circuit

1 2 3
SCHEMATIC DIAGRAM - 7
A
E USB CIRCUIT
: +B SIGNAL LINE
B
32 31 30 29 28
33 P75/D7
C
34 P81/D8
35 P82/D9
36 P83/D10
37 P84/D11
C911
0.1
38 VDD33
39 P85/D12
D
40 VSS
41 P86/D13
C912
0.1
D1.8V
42 VDDI
43 P87/D14
R906
0
44 P40/D15
45
P77/NRE
DGND
E
46 I2C_CLK/WR_END
47 I2C_REQ/WR_START
48 I2C_DATA/ERROR
49 50 51 52 53
D3.3V
F
G DGND
H
1 2 3
4 5 6
: USB SIGNAL LINE
R972
1K
R971
1K
C914
0.1
27 26 25 24 23 22 21 20 19 18 17
DGND
R902
1K
MMOD1 16
MMOD0 15
NRST 14
VSS 13
R901
1K
OSCO 12
X900
H0A120500009
OSCI 11
D1.8V
VDDI 10
IC900 VDD33 9
MNZSFB5KJM2
8
CD_NRST
USB CONTROLLER
AVDD 7
USBD+ 6
VSS 5
4
USBD-
USBNPP 3
USBNOC
2
PD6/IRQ3 1
54 55 56 57 58 59 60 61 62 63 64
4 5 6
7 8 9
R951
0
R950
22K
D3.3V
R904
0
NRST
C908 20P
C907 18P
DGND
R914
0
L900
G1C100K00019
DGND
DGND
LB930
LB932
LB933
LB934
LB935
LB936
LB938
LB840
LB841
LB843
LB845
LB846
LB848
LB850
R903
0
DGND DGND
7 8 9
79
10 11 12
VOUT
DGND
D5V
LB952
5
0
VBUS
G
1 VBUS
D- R952 820
P903
2 D-
R953 24
D+
USB PORT
3 D+
VSS
4
G
LB951
6
0
DGND
P901
0
1 D5V
2 DGND
J0JBC0000033
3 I2C_CLK
4 VERR
J0JBC0000033
I2C_REQ
5
J0JBC0000033
I2C_DATA
6
7 DGND
J0JBC0000033
8 CD_CLK
9 DGND B
J0JBC0000033 TO
CD_STAT
10
J0JBC0000033 MAIN CIRCUIT
11 CD_DATA
(CN3200)
12 DGND
IN SCHEMATIC
J0JBC0000033
13 STCLK
DIAGRAM - 2
14 TERR
J0JBC0000033
15 STREQ
J0JBC0000033
16 STIN
J0JBC0000033
17 CD_MLD
J0JBC0000033
CD_NRST
18
J0JBC0000033
M_NRST
19
20 DGND
SA-AK180PN/PU USB
0
D3.3V
21
MMOD
22
10 11 12
13 14
A
B
C
D
E
F
G
CIRCUIT
H
13 14