Usb Circuit - Panasonic SA-PM24EB Service Manual

18.7. USB CIRCUIT

1 2 3
SCHEMATIC DIAGRAM - 7
A
D USB CIRCUIT
: +B SIGNAL LINE
B
32 31 30 29 28
33 P75/D7
34 P81/D8
35 P82/D9
C
36 P83/D10
37 P84/D11
C911
0.1
38 VDD33
39 P85/D12
40 VSS
41 P86/D13
D C912
0.1
42 VDDI
43 P87/D14
R906
0
44 P40/D15
45 P77/NRE
DGND
46 I2C_CLK/WR_END
47 I2C_REQ/WR_START
E
48 I2C_DATA/ERROR
49 50 51 52 53
F
DGND
G
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
VDDI 10
IC900 VDD33 9
MNZSFB5KJM2
8
CD_NRST
USB CONTROLLER
AVDD 7
USBD+ 6
VSS 5
USBD- 4
USBNPP 3
USBNOC 2
PD6/IRQ3 1
54 55 56 57 58 59 60 61 62 63 64
4 5 6
7 8 9
R957
2.2K
R904
0
C908 22P
C907 18P
DGND
R914
0
L900
G1C100K00019
DGND
DGND
R907
0
LB930
LB932
LB933
LB934
LB935
LB936
LB938
LB840
LB841
LB843
LB845
LB846
LB848
LB850
R958 R903
0
100K
DGND
7 8 9
79
10 11 12
DGND
P903
LB952
5
0
G
1 VBUS
R952 24
2 D-
USB PORT
R953 24
3 D+
VSS
4
G
LB951
0 6
DGND
P901
0 22
D5V
1
2 DGND
0
3 I2C_CLK
VERR
4
0
I2C_REQ
5
0
6 I2C_DATA
7 DGND
0
8 CD_CLK
9 DGND B
0
TO
10 CD_STAT
0 MAIN CIRCUIT
11 CD_DATA
(CN802)
DGND
12
IN SCHEMATIC
0
13 STCLK
DIAGRAM - 4
TERR
14
0
15 STREQ
0
16 STIN
0
17 CD_MLD
0
18 CD_NRST
0
M_NRST
19
DGND
20
0
21 D3.3V
MMOD
22
1
SA-PM24EB/EG/EP USB
LB852
0
DGND
10 11 12
13 14
A
B
C
D
E
F
G
CIRCUIT
H
13 14