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Title
Number RevisionSize
A3
Date: 2004-04-27 Sheet of
File: C:\My NoteBook Raw\..\1520MINI_UPDATE.SCHDOCDrawn By:
ISP1520 BUS POWER EVAL. KIT
VBUS
A1
D-
A2
D+
A3
GND
A4
CHASSIS
A5
CHASSIS
A6
D-
B2
D+
B3
VBUS
B1
GND
B4
CHASSIS
B5
CHASSIS
B6
USB_DOWN
USB1
100uF
C11
15KR18
15KR19
SDA
5
SCL
6
WP
7
VCC
8
A0
1
A1
2
A2
3
GND
4
AT24C01
U15
1K5, 5%
R10
12K, 1%
R11
V3.3REG
1
2
3
4
SIP_4P
J42
12MHz
X1
22pF
C9
22pF
C8
0.1uFC7
VBUS
100uF
C13
15KR22
15KR23
VBUS
A1
D-
A2
D+
A3
GND
A4
CHASSIS
A5
CHASSIS
A6
D-
B2
D+
B3
VBUS
B1
GND
B4
CHASSIS
B5
CHASSIS
B6
USB_D OWN
USB2
15KR20
15KR21
15KR24
15KR25
100KR14
100KR15
V3.3REG
2K2
R16
2K2
R17
VDN
J2
J1
DM0
DP0
DM1
DP1
DM2
DP2
DM3
DP3
DM4
DP4
PSW1
PSW2
PSW3
PSW1
OC1
OC1
OC3
OC3
SUSPEND
ADOC
SP/BP
NOOC
ADOC
PSW2
PSW1
PSW3
PSW4
OC1
OC2
OC3
OC4
DM1
DP1
DP3
DM3
DM0
DM1
DM2
DM3
DM4
DM0
DM2
DM4
DP4
DP0
DP1
DP2
DP2
DP3
DP4
DP0
1uF
C15
1uF
C16
L1
V3.3REG
1
2
3
DC_IN
PWR_C1
V3.3REG
VCC5
VDN
VBUS
1
D-
2
D+
3
GND
4
CHASSIS
5
USB_UP
USB0
DM4
DP4
DM3
DP3
DM2
DP2
DM1
DP1
DM0
DP0
S1
1
G1
2
S2
3
G2
4
D2
5
D2
6
D1
7
D1
8
NTHD590 5T1
Q1
0 R
R28
0 R
R30
0. 1uFC5
0. 1uFC4
0. 1uFC3
1uF
C10
VBU S
VDN
PSW3
PSW4
NTHD5 905T1
Q2
VDN
100uF
C14
100uF
C12
0 R
R29
OC2
1 2
3 4
5 6
SP/BP#
SW1
SP/BP
10K
R12
NC
R13
0. 1uF
C6
VDN
V3.3REG
SP/BP
V3.3REG
0. 1uFC1
0. 1uFC2
OC2
OC4
PSW4
PSW2
V3.3REG
0 R
R31
OC4
330R
R9
RED
D15
500K
R5
VDN
0.1uF
C20
J6
J5
V3.3REG
NC
R105
VIN
2
VOUT
3
VSS
1
XC6206P30 2
U2
REF1
1
I/O1
2
I/O2
3
REF2
4
HEADER 3
ESD1
REF1
1
I/O1
2
I/O2
3
REF2
4
HEADER 3
ESD2
REF1
1
I/O1
2
I/O2
3
REF2
4
HEADER 3
ESD3
REF1
1
I/O1
2
I/O2
3
REF2
4
HEADER 3
ESD4
REF1
1
I/O1
2
I/O2
3
REF2
4
HEADER 3
ESD5
VBUS1
VBUS2
VBUS3
VBUS4
VBUS1
VBUS2
VBUS3
VBUS4
VDN
NC
R35
J10
NC
R32
POLYSWITCH
F1
VDN
NC
R34
POLYSWITCH
F3
VDN
NC
R33
POLYSWITCH
F2
VDN
NC
R36
POLYSWITCH
F4
VDN
JUMPER
ADOC
100KR37
JUMPER
NOOC
VDN
VDN
VDN
VDN
RESET
31
HP
17
PSW4
26
PSW3
28
PSW2
30
PSW1
20
OC4
25
OC3
27
OC2
29
OC1
19
SP/BP
18
SUSPEND
1
ADOC
32
NOOC
49
GRN1
60
GRN2
54
GRN3
52
GRN4
50
AM B1
61
AM B2
55
AM B3
53
AM B4
51
HUBGL
62
SCL
63
SDA
64
DP4
48
DM4
47
DP3
44
DM3
43
DP2
37
DM2
36
DP1
16
DM1
15
DP0
4
DM0
3
XTAL1
33
XTAL2
34
RPU
5
RREF
7
DGND
21
DGND
22
DGND
58
DGND
59
AGND
2
AGND
6
AGND
10
AGND
14
AGND
35
AGND
40
AGND
42
AGND
46
VCC5
24
VCC5
56
VCC4
41
VCC1
39
TEST_HIGH
8
VCC1
9
VCC4
11
VCC2
13
VCC3
23
TEST_HIGH
38
VCC2
45
TEST_HIGH
12
VCC3
57
Qrpu NPN
5K6
RVbus
VBUS
Alternative solution for OC
Alternative solution for OC
Alternative solution for OC
Alternative solution for OC
Solder R32 to disable OC detection for port1
Solder R33 to disable OC detection for port2
Solder R34 to disable OC detection for port3
Solder R36 to disable OC detection for port4
Analog OC : No JUMPER
Digital OC : JUMPER
OC protection : No JUMPER
No OC protection : JUMPER
No EEPROM used: J1 & J2
EEPROM used: No J1 & J2
J5 & J6 : To disable port#3 & port#4