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| 型号： | FCMJ-8521-3 |
| 元件分类： | 光收发 |
| 英文描述： | FIBER OPTIC TRANSCEIVER, 1250Mbps(Tx), 1250Mbps(Rx), PANEL MOUNT |
| 文件页数： | 4/7页 |
| 文件大小： | 198K |
| 代理商： | FCMJ-8521-3 |
FCMJ-8520/8521-3 1000BASE-T SFP Product Specification
Fin i sar
Finisar Corporation March 16, 2005 Rev H
Page 4
IV. High-Speed Electrical Interface
All high-speed signals are AC-coupled internally.
High-Speed Electrical Interface,
Host-SFP
Parameter
Symbol
Min
Typ
Max
Units
Notes/Conditions
Single ended data input
swing
Vinsing
250
1200
mV
Single ended
Single ended data output
swing
Voutsing
350
800
mV
Single ended
Rise/Fall Time
Tr,Tf
175
psec
20%-80%
Tx Input Impedance
Zin
50
Ohm
Single ended
Rx Output Impedance
Zout
50
Ohm
Single ended
Table 5. High-speed electrical interface, host-SFP
High-Speed Electrical
Interface,
Transmission Line-SFP
Parameter
Symbol
Min
Typ
Max
Units Notes/Conditions
Line Frequency
fL
125
MHz
5-level encoding, per
IEEE 802.3
Tx Output Impedance
Zout,TX
100
Ohm
Differential, for all
frequencies between
1MHz and 125MHz
Rx Input Impedance
Zin,RX
100
Ohm
Differential, for all
frequencies between
1MHz and 125MHz
Table 4. High-speed electrical interface, transmission line-SFP
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