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HCD-GTR33/GTR55/GTR77
HCD-GTR33/GTR55/GTR77
29
29
6-14. SCHEMATIC DIAGRAM - HUB Board -
• See page 39 for Waveforms. • See page 40 for IC Pin Function Description.
3.3
9
3.3
5.2
5.2
5.1
5.2
10
C1512
10
C1508
10
C1514
10
C1501
FB1502
FB1503
FB1500
NJM2903V(TE2)
IC1500
FB1501
C1530 5p
C1528 0.1
C1529 0.1
C1531 5p
24MHz
X1500
16V
47
C1520
IC1501
USB2512A-AEZG
1
R1504
1
R1505
1
R1506
1
R1507
1
R1508
1
R1509
1
R1510
1
R1511
1
R1512
1
R1513
1
R1526
1
R1525
1
R1524
1
R1523
1
R1522
1
R1521
1
R1520
1
R1519
1
R1518
1
R1517
R1546
100
R1541
100
100k
R1533
100k
R1537
100k
R1538
100k
R1540
1M
R1530
12k
R1547
R1544
10k
10k
R1543
22k
R1501
100
R1500
330
R1503
100
R1527
22k
R1515
0.1
C1507
0.1
C1510
0.1
C1502
0.1
C1517
C1522
0.1
22p
C1504
10p
C1503
0.1
C1523
0.1
C1524
0.1
C1500
1
3
2
4
5
6
7
7P
CN1502
+9V
DGND
3.3V
OC1
OC2
RST
VBUS DET
1
2
3
4
5
6
7
8
9
10
10P
CN1501
USB A+5V
D- A
D+ A
USB A GND
(NC) SHILED A
USB B+5V
D- B
D+ B
USB B GND
(NC) SHEILD B
JL1501
JL1502
JL1505
JL1506
JL1507
JL1510
JL1524
JL1511
JL1512
JL1513
JL1514
JL1515
JL1516
JL1518
330
R1516
1
2
3
4
5
5P
CN1500
USBGND
USBP
USBM
USB+5V
SHIELD
0.01
C1505
0.01
C1506
0.01
C1511
0.01
C1513
0.01
C1515
0.01
C1516
E
ET1500
E
ET1501
100k
R1542
C1521
1000p
C1519
0.01
VBUS OVER CURRENT DETECT
IC1500
USB CONTROLLER
(CHASSIS)
0.1
C1518
C1527
0.1
1
2
3
4
5
6
7
8
9
10
11
14
15
12
13
A
B
C
D
E
F
G
H
I
J
HUB BOARD
IC1501
FB1505
0
0
0
0 3.3
0
1.8
3.3
0
3.3
0
0
3.3
3.3
0
3.3
0
2.9
1
1
1.8
1.2
3.3