参数资料
型号: WJLXT905LE.C2
厂商: CORTINA SYSTEMS INC
元件分类: 网络接口
英文描述: DATACOM, ETHERNET TRANSCEIVER, PQFP32
封装: ROHS COMPLIANT, MO-136BC, LQFP-32
文件页数: 14/40页
文件大小: 544K
代理商: WJLXT905LE.C2
LXT905 Universal 10BASE-T Transceiver with 3.3V Support
Datasheet
21
Document Number: 249271
Revision Number: 004
Revision Date: 19-Oct-2005
3.3
Dual Network Support - 10BASE-T and Token Ring
Figure 9 on page 21 shows the LXT905 with a Texas Instruments* 380C26 CommProcessor. The
380C26 is compatible with Mode 4 (MD0 and MD1 both high). When you use the LXT905 with
the 380C26, you can tie both the LXT905 and a TMS38054* Token Ring transceiver to a single
RJ-45, allowing dual network support from a single connector.
Figure 9. Intel
LXT905 PHY/Texas Instruments* 380C26 Interface for Dual 10BASE-T and
Token Ring Support (Mode 4)
TXD
TEN
TCLK
RCLK
RXD
CD
COL
LBK
MD0
MD1
LI
LEDR
LEDC/FDE
LEDT/PDN
LEDL
VCC1
VCC2
100 pF
50
Ω 1%
+5V
Line Status
GND2 GND3
RBIAS
To TI TMS38054
Token Ring
Transceiver
LX
T9
05
50
Ω 1%
11.8
Ω 1%
11.8
Ω 1%
0.1
μF
100 pF
RJ-45
TPIN
TPIP
TPON
TPOP
6
5
4
3
2
1
3
16
14
11
9
6
8
1:2
1:1
To
10
Base-
T
Twi
s
ted-
Pai
rNet
w
or
k
7.5 k
Ω 1%
20 pF
20 MHz
CLKI
CLKO
1
20 pF
TXD
TXE
TXC
RXC
RXD
CRS
COL
LBK
380
C26
0.1
μF
GND1
300
Green Red
Red
From TI TMS38054
Token Ring
Transceiver
Additional magnetics and switching logic (not shown) are required to implement the dual network solution.
2
Optional: Center tap capacitor may improve EMC depending on board layout and system design.
2
1
+5V
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