Strong SRT8500 Service Manual page 30

6
D
R665 100R
[3]
ET_MDIO
[3] R666 100R
ET_MDC
RXER/PHYAD0
[3]
ET_TXEN
[3]
ET_TXD0
[3]
ET_TXD1
R667 100R
[3]
ET_RXD1
R668 100R
[3]
ET_RXD0
[3] R669 100R
ET_COL
[3] R670 33R
ET_TXCLK
C662 C661
33P NC
C
Close to LAN8720 for EMI !
VCC3_3V_PD EDVDD3_3V VCC3_3V_PD
L661
FB120R
0603
C666 C667
10uF 104
0805
B
0603 Package
EAVDD3_3V
[9]
MDIORX+
[9]
MDIORX-
[9]
MDIOTX+
[9]
MDIOTX-
C655
104
A
5
R676 300K
EDVDD3_3V EDVDD3_3V
EDVDD3_3V EAVDD3_3V VDDCR
R677 0R
C663
104
R674 R675
10K 1.5K
12 21 R678 0R
MDIO TXP
20 R679 0R
13
TXN
MDC 23 R680 0R
RXP 22
10 R681 0R
RXER/PHYAD0 RXN
QFN24P
16 3
TXEN LED1/REGOFF
17 2
TXD0 LED2/NINTSEL
18 U651
TXD1
LAN8720A R682 10K
7
RXD1/MODE1
8
4 R683
RXD0/MODE0
XTAL2
11 5 R684
CRS_DV/MODE2 XTAL1/CLKIN
24
RBIAS
Y651
14 25
NINT/REFCLKO VSS/FLAG
R685 C664
R671 R672 R673
12.1K 30P
NC NC NC
EAVDD3_3V EAVDD3_3V EDVDD3_3V VDDCR
L662
FB120R
0603
C668 C669 C670 C671 C672 C673 C674
10uF 104 104 104 104 1uF 4.7uF
0805
0603
T651 [9] 13
LED2/NINTSEL LED0+
HY60168O
[9] 15
LED1/REGOFF
LED1+
1
TD+
16 1
TX+ TX+
2 2
TDC TX-
14 4
TX- TXCT
3 5
DCT
TD- RXCT
PHY_TCM0
4 15 3
NC1 CMT RX+
13 6
NC4 RX-
5 7
NC2 NC
6 12 CH_GND 8
RD+ NC3 CH_GND
11
11
RX+
7
GND
12
RDC
9
GND
9
RX-
8
10
RD-
10 PHY_TCM1
RXC
98LEDC03-1X1 TP/RJ45
C656
GND_EARTH
103
C659
R662 0R
1nF/2KV
0805
GND_EARTH GND_EARTH
4
EDVDD3_3V
[3]
ETH_RST
[9]
MDIOTX+
[9]
MDIOTX-
[9]
MDIORX+
[9]
MDIORX-
[9]
LED1/REGOFF
[9]
LED2/NINTSEL
33R
1M
25MHz
C665
30P
Note:
VDDCR decoupling capacitors and
test point should be placed as close
to LAN8720 as possible.
J651
14
LED0-
16
LED1-
R660 R661
510R 510R
3 2
HISTORY OF MODIFICATIONS
REV.
1
2
Shenzhen Jiuzhou Electric CO.,LD
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DESCRIPTION
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TRADE SECERTSPROPRIETARY TO Shenzhen Jiuzhou
Electric CO.,LD.
NEITHER THIS DOCUMENT NOR ITS CONTENTS SHALL
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COPIED OR PUBLISHED WITHOUT Shenzhen Jiuzhou
Electric CO.,LD.'S PRIOR WRITTEN
COPYRIGHT C 2011 Shenzhen Jiuzhou Electric CO.,LD
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MODEL NO.:
PROJECT CODE:
DOC. REV.: V1.1
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DESIGNED BY: Xuewei 2011-12-19
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