ASUS UL20A Schematics
5
4
3
2
UL20A I/O Board SCHEMATIC R1.1
1
D D
PAGE
SYSTEM PAGE REF.
1
01_Block diagram
2
02_RTC_DC CONN
3
03_LAN-AR8132
4
04_LAN-RJ45 CONN
05.USB-Port
5
06.CARD READER_AU-6433
6
7
07_BT
C C
Content
8
9
10
11
12
08_WLAN
09_B to B connector
10-ME_-SCREW HOLE, SMT NUT
11_CRT
12_History
Transformer
LAN
RJ45
CRT
USB
Daughter
Board
Mini Half Card
B to B
For WLAN
LAN
AR8132
CARD READER
RTC BATTERY
BT
B to B
B B
Card Reader
AU-6433
A A
<Variant Name>
<Variant Name>
<Variant Name>
Title :
Title :
Title :
Block Diagram
Block Diagram
Block Diagram
Ho Chia Chun
Ho Chia Chun
1
Ho Chia Chun
1 14
1 14
1 14
Rev
Rev
Rev
2.0
2.0
2.0
Engineer:
Engineer:
ASUSTeK COMPUTER INC
ASUSTeK COMPUTER INC
ASUSTeK COMPUTER INC
Size Project Name
Size Project Name
Size Project Name
Custom
Custom
Custom
Date: Sheet of
Date: Sheet of
5
4
3
2
Date: Sheet of
UL20A IO Board
UL20A IO Board
UL20A IO Board
Friday, July 31, 2009
Friday, July 31, 2009
Friday, July 31, 2009
Engineer:
A
B
C
D
E
DC-IN Conn
1 1
CON0201
CON0201
4
P_GND1
5
P_GND2
6
NP_NC
DC_PW R_JACK_3P
DC_PW R_JACK_3P
2009/04/15
Change to 12G14530103V
2 2
T0206T0206
3 3
BATT_HOLDER_2P
BATT_HOLDER_2P
2009/04/22
Change to 12G201100208
DC-IN CONNECTOR J0301 Check Pin Define
1
3
4
CON0202
CON0202
1
2
3
+RTCBAT
12
2001
T0202T0202
T0201T0201
1
2
3
1
1
T0203T0203
T0204T0204
1
1
A/D_DOCK _CONN
GND GND GND GND GNDGND
80Ohm/10 0Mhz
80Ohm/10 0Mhz
12
C0201
C0201
0.1UF/25V
0.1UF/25V
L0201
L0201
21
12
@
@
C0202
C0202
10UF/25V
10UF/25V
PWR SW
SW0 201
SW0 201
5 6
1 2
3 4
TP_SW ITCH_4P
TP_SW ITCH_4P
GND
12
C0203
C0203
1UF/25V
1UF/25V
MLCC/+/-10 %
MLCC/+/-10 %
T0205T0205
1
12
C0204
C0204
0.1UF/25V
0.1UF/25V
T0207T0207
1
12
GND
@
@
7/1 Add EMI sloution
7/27
工工工工工工工工
C0205
C0205
1UF/25V
1UF/25V
MLCC/+/-10 %
MLCC/+/-10 %
@
@
D0201
D0201
SS0540
SS0540
1 2
PWR_ SW# 9
A/D_DOCK _IN
+5VA
12
12
+
+
R0202
R0202
330Ohm
330Ohm
LED0201
LED0201
BLUE
BLUE
T0208T0208
1
7/27
工工工工工工工工
Power_LED # 9
4 4
D0202
D0202
1
2
3 4
DF5A6.8F U
GND
6/24 Add ESD Diode
5 5
A
B
DF5A6.8F U
@
@
PWR_ SW#
5
Power_LED #
<Variant Name>
<Variant Name>
<Variant Name>
Title :
Title :
Title :
Engineer:
Engineer:
ASUSTeK C OMPUTER INC
ASUSTeK C OMPUTER INC
ASUSTeK C OMPUTER INC
Size Proj ect Name
Size Proj ect Name
Size Proj ect Name
Custom
Custom
Custom
Date: Sheet of
Friday, July 31, 2009
Date: Sheet of
Friday, July 31, 2009
Date: Sheet of
C
D
Friday, July 31, 2009
UL20A IO Board
UL20A IO Board
UL20A IO Board
Engineer:
E
RTC_DC
RTC_DC
RTC_DC
Ho Chia Chun
Ho Chia Chun
Ho Chia Chun
2 14
2 14
2 14
Rev
Rev
Rev
2.0
2.0
2.0
5
FOR AR8131:Control signal
@
@
C0301 close to Pin 1
C0305
C0305
60 mil
T7T7
1
D D
+1.7V_LAN
1
C0303
C0303
10UF/6.3V
10UF/6.3V
T0304T0304
12
SL0301
SL0301
1 2
@
@
SHORT_PIN
SHORT_PIN
2005
1 2
L0301
L0301
C0302
C0302
0.1UF/16V
0.1UF/16V
0.1UF/16V
0.1UF/16V
C0304
C0304
4.7UH
4.7UH
21
1 2
12
C0301
C0301
1UF/6.3V
1UF/6.3V
AVDD_CEN_+1.7V
12
@
@
1UF/6.3V
1UF/6.3V
Clock Internal Pull high
C C
PCIE_WAKE#8,9
12
C0307
C0307
1UF/6.3V
1UF/6.3V
2005
@
B B
BUF_PLT_RST#8,9
@
+3V_LAN
VDD_+2.5V
AVDD_CEN_+1.7V
C0308
C0308
0.1UF/16V
0.1UF/16V
1 2
@
@
R0301
R0301
0Ohm
0Ohm
AVDD_+1.1V
SL0303
SL0303
21
0402
0402
12
L_TRDP04
L_TRDM04
L_TRDP14
L_TRDM14
T12T12
1
4
LX
LX
AVDD_+1.1V
X1_LAN
X2_LAN
RBIAS
R0302
R0302
2.37KOHM
2.37KOHM
1%
1%
1 2
2001
U0301
U0301
1
LX
2
VDD3V
3
PERSTn
4
WAKEn
5
VDD25V
6
VDD17
7
SEL_25MHz
8
VDD11_REG
9
XTLO
10
XTLI
11
AVDD_REG
12
RBIAS
AR8132_AL1E
AR8132_AL1E
2009/06/24 T0304,T0305
T0302T0302
R0304
R0304
T0303T0303
1
1
R0305 0OhmR0305 0Ohm
PCIE_RXP6_LAN_L
PCIE_RXN6_LAN_L
AVDD_CO2
RXP
RXN
DVDD_+1.1V
DVDD_+1.1V
46
47
48
49
GND
LED_ACTn
LED_10_100n
TRXP013TRXN014VDDHO15AVDDL_116TRXP117TRXN118AVDDH_119NC120NC221AVDDL_222NC323NC4
AVDD_+1.1V
VDD_+2.5V
AVDD_+1.1V
37
38
39
40
41
42
43
44
TX_P
RX_P
RX_N
DVDD_REG_245DVDD_REG_1
VDD_+2.5V
TX_N
AVDDL
AVDDL_3
AVDDL_4
REFCLKP
REFCLKN
TESTMODE
SMDATA
DVDDL_2
TWSI_DATA
TWSI_CLK
DVDDL_1
CLKREQn
AVDDH_2
24
AVDD_+1.1V
RN0301D
RN0301D
RN0301C
RN0301C
RN0301B
RN0301B
RN0301A
RN0301A
0Ohm
0Ohm
NC6
SMCLK
NC5
3
拿拿拿拿拿拿拿拿
PCIE_TXN6_LAN 9
PCIE_TXP6_LAN 9
12
CLK_PCIE_LAN 9
12
CLK_PCIE_LAN# 9
C0330 0.1UF/16VC0330 0.1UF/16V
1 2
C0331 0.1UF/16VC0331 0.1UF/16V
1 2
AVDD_+1.1V
36
35
34
33
DVDD_+1.1V
32
31
30
29
DVDD_+1.1V
28
27
26
VDD_+2.5V
25
T0301T0301
1
For AR8121 stuff R0410 Remove J0405
7 8
49.9OHM
49.9OHM
5 6
49.9OHM
49.9OHM
3 4
49.9OHM
49.9OHM
1 2
49.9OHM
49.9OHM
2001
@
@
2005
SL0304
SL0304
0402
0402
C0309
C0309
C0310
C0310
2
+3VSUS
C0313 C0314 C0315 C0316Close to pin2
PCIE_RXP6_LAN 9
PCIE_RXN6_LAN 9
21
1 2
1 2
1 2
@
@
R0303
R0303
0Ohm
0Ohm
0.1UF/16V
0.1UF/16V
0.1UF/16V
0.1UF/16V
CLK_REQ_LAN# 9
SL0302
SL0302
0603
0603
21
60 mil
AVDD_+1.1V
DVDD_+1.1V
C0322 close to pin32
1
+3V_LAN
C0313
C0313
10UF/6.3V
10UF/6.3V
12
C0314
C0314
10UF/6.3V
10UF/6.3V
12
2005
SL0305
SL0305
1 2
@
@
SHORT_PIN
SHORT_PIN
c0319 c0320 close to pin 19, 25 each
VDD_+2.5V
12
C0321
C0321
1UF/6.3V
1UF/6.3V
12
C0319
C0319
0.1UF/16V
0.1UF/16V
12
T11T11
C0315
C0315
1UF/6.3V
1UF/6.3V
2001
1
12
C0320
C0320
0.1UF/16V
0.1UF/16V
12
C0317
C0317
0.1UF/16V
0.1UF/16V
12
C0316
C0316
0.1UF/16V
0.1UF/16V
@
@
AVDD_CO2
12
C0318
C0318
1000PF/50V
1000PF/50V
C0323, C0324, C0325 close to pin 28, 32, 46 each
12
12
12
12
C0322
C0322
1UF/6.3V
1UF/6.3V
0.1UF/16V
0.1UF/16V
C0323
C0323
C0324
C0324
1UF/6.3V
1UF/6.3V
C0325
C0325
0.1UF/16V
0.1UF/16V
X2_LAN
X0301
X0301
1 2
X1_LAN
C0311
C0311
27PF/50V
A A
5
4
3
27PF/50V
1 2
12
25Mhz
25Mhz
12
C0312
C0312
27PF/50V
27PF/50V
2
C0326, C0327, C0328, C0329 close to pin 16,22,36,39 each.
AVDD_+1.1V
<Variant Name>
<Variant Name>
<Variant Name>
ASUSTeK COMPUTER INC
ASUSTeK COMPUTER INC
ASUSTeK COMPUTER INC
Size Project Name
Size Project Name
Size Project Name
B
B
B
Date: Sheet of
Friday, July 31, 2009
Date: Sheet of
Friday, July 31, 2009
Date: Sheet of
Friday, July 31, 2009
12
12
1UF/6.3V
1UF/6.3V
C0327
C0327
C0326
C0326
10UF/6.3V
10UF/6.3V
Title :
Title :
Title :
Engineer:
Engineer:
Engineer:
UL20A IO Board
UL20A IO Board
UL20A IO Board
12
C0328
C0328
0.1UF/16V
0.1UF/16V
1
12
C0329
C0329
0.1UF/16V
0.1UF/16V
AR8132 LAN
AR8132 LAN
AR8132 LAN
3 14
3 14
3 14
Rev
Rev
Rev
2.0
2.0
2.0
5
D D
4
3
2
1
2009/05/26
Change to 12G148601082
MODULAR_JACK_8P
+1.7V_LAN
C C
12
C0401
C0401
0.1UF/16V
0.1UF/16V
c0402
c0402
GND
12
C0402
C0402
0.1UF/16V
0.1UF/16V
c0402
c0402
GND
12
C0403
C0403
10UF/6.3V
10UF/6.3V
c0603
c0603
@
@
L_TRDP13
L_TRDM13
L_TRDP03
L_TRDM03
LAN_MDI_1+
LAN_MDI_1-
LAN_MDI_0+
LAN_MDI_0- LAN_TXN_L
Main source:09G051050010
Second source: 09G051050100
1
RD+
2
RD-
3
RDCT
6
PTCT/TDCT
7
TD+
8
TD-
4
NC1
5
NC2
U0401
U0401
LFE8423
LFE8423
RX+
RX-
RXCT
TXCT
TX+
TX-
NC3
NC4
16
15
14
11
10
9
12
13
LAN_RXP_L
LAN_RXN_L
LAN_TXP_L
LAN_RXCT
LAN_TXCT
RN0401C
RN0401C
RN0401B
RN0401B
5 6
75Ohm
75Ohm
3 4
75Ohm
75Ohm
RN0401A
RN0401A
FGND
12
GND
RN0401D
RN0401D
C0404
C0404
1000PF/2KV
1000PF/2KV
2009/04/16
1 2
75Ohm
75Ohm
7 8
75Ohm
75Ohm
LAN_TXP
LAN_TXN
LAN_RXP
LAN_CON89
LAN_RXN
LAN_CON67
2009/04/30
Swap
2009/04/28
Change Connector
pin define
MODULAR_JACK_8P
1
1
P_GND1
2
2
NP_NC1
3
3
4
4
5
5
6
6
7
7
NP_NC2
8
8
P_GND2
CON1102
CON1102
9
11
12
10
GND
2009/04/27
Change back to GND
Change to 2KV
RN0402A
RN0402A
0Ohm
0Ohm
14
23
0Ohm
0Ohm
0Ohm
0Ohm
14
23
0Ohm
0Ohm
@
@
RN0402B
RN0402B
RN0403A
RN0403A
RN0403B
RN0403B
3
LAN_RXN
LAN_RXP
LAN_TXN
LAN_TXP
<Variant Name>
<Variant Name>
<Variant Name>
Title :
Title :
Title :
LAN RJ45 CONN
LAN RJ45 CONN
LAN RJ45 CONN
Ho Chia Chun
Ho Chia Chun
Engineer:
Engineer:
ASUSTeK COMPUTER INC
ASUSTeK COMPUTER INC
ASUSTeK COMPUTER INC
Size Project Name
Size Project Name
Size Project Name
Custom
Custom
Custom
Date: Sheet of
Friday, July 31, 2009
Date: Sheet of
Friday, July 31, 2009
Date: Sheet of
2
Friday, July 31, 2009
UL20A IO Board
UL20A IO Board
UL20A IO Board
Engineer:
Ho Chia Chun
1
Rev
Rev
Rev
2.0
2.0
4
4
4
2.0
14
14
14
L0401
L0401
90Ohm/100Mhz
90Ohm/100Mhz
L0402
L0402
90Ohm/100Mhz
90Ohm/100Mhz
@
@
1 2
3 4
1 2
3 4
B B
A A
5
4
LAN_RXN_L
LAN_RXP_L
LAN_TXN_L
LAN_TXP_L
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