5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
DM
DP
DM
DP
XIN
XOUT
SPISDO
SPISDI
LED1/SPISCK
LED0/SPICSB
VDD33
VDD12
MDI0+
MDI0-
MDI1+
MDI1-
VCC5
VDD33
VDD33
VDD12
VDD12
LED0/SPICSB
SPISDO
SPISDI
LED1/SPISCK
TX+
TX-
RX+
RX-
MDI0+
MDI0-
MDI1+
MDI1-
LED1/SPISCK
LED0/SPICSB
VCC5
VDD33
VDD33
VDD33
VDD33
VDD33
VDD33
VDD33
Title
Size Document Number Rev
Date: Sheet of
SR9900 V1.1
ShenZhen Corechips Science and Technology Co.,Ltd.
B
1 1Thursday, July 19, 2018
Title
Size Document Number Rev
Date: Sheet of
SR9900 V1.1
ShenZhen Corechips Science and Technology Co.,Ltd.
B
1 1Thursday, July 19, 2018
Title
Size Document Number Rev
Date: Sheet of
SR9900 V1.1
ShenZhen Corechips Science and Technology Co.,Ltd.
B
1 1Thursday, July 19, 2018
C18
1nF/2000V/1206
C9 1uF/0603
C19
1nF/2000V/1206
R13 510R/0402
C8 0.1uF/0402
R7 75R/0603
C20 1nF/2000V/1206
C15 0.1uF/0402
C13 1uF/0603
R2 10K/0402/NC
U2
MX25L1606E
CS#
1
SO
2
WP#
3
GND
4
SI
5
SCLK
6
HOLD#
7
VCC
8
C10 0.1uF/0402
R9 0R/1206
C6 0.1uF/0402
C16 0.1uF/0402
R3 10K/0402
R15 510R/0402
Y1
25MHz/20ppm
12
C2
10uF/0603
C5 4.7uF/0603
C4 27pF/0402
Yellow Green
CON1
RJ45_LED
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
GND
9
GND
10
11
11
12
12
LED1+
13
LED1-
14
LED2+
15
LED2-
16
U1
SR9900
AVDD33
1
MDIP0
2
MDIN0
3
MDIP1
4
MDIN1
5
U2GND
6
U2DM
7
U2DP
8
DVDD12
9
AVDD33
10
VDD5
11
DVDD12_UPS
12
DVDD33
13
GPIO
14
LED0/SPICSB
15
DVDD12
16
LED1/SPISCK
17
SPISDI
18
LANWAKEB
19
SPISDO
20
XTAL1
21
XTAL2
22
AVDD12
23
RSET
24
EPAD
25
C11 0.1uF/0402
R5 75R/0603
R8 75R/0603
C14 0.1uF/0402
J1
USB_4P
VCC
1
DM
2
DP
3
GND
4
5
5
6
6
R6 75R/0603
C17 0.1uF/0402
C1
0.1uF/0402
FB1 Ferrite Bead_0
1 2
C7 0.1uF/0402
C3 27pF/0402
C12 0.1uF/0402
T1
Transformer
TD+
1
TCT
2
TD-
3
4
4
5
5
RD+
6
RD-
8
RCT
7
RX-
9
RCT1
10
RX+
11
12
12
13
13
TX-
14
TX+
16
TCT1
15
R1 2.49K/1%/0402
R4 10K/0402
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