FCMJ-8520 Finisar Corporation., FCMJ-8520 Datasheet - Page 4

• Manufacturer Part Number: FCMJ-8520
• Description: 1000base-t Copper Sfp Transceiver
• Manufacturer: Finisar Corporation.

High-Speed Electrical
Interface,
Transmission Line-SFP
Parameter
Line Frequency
Tx Output Impedance
Rx Input Impedance
High-Speed Electrical Interface,
Host-SFP
Parameter
Single ended data input
swing
Single ended data output
swing
Rise/Fall Time
Tx Input Impedance
Rx Output Impedance
FCMJ-8520/8521-3 1000BASE-T SFP Product Specification
IV. High-Speed Electrical Interface
All high-speed signals are AC-coupled internally.
 Finisar Corporation March 16, 2005 Rev H
Table 4. High-speed electrical interface, transmission line-SFP
Symbol
V
V
Table 5. High-speed electrical interface, host-SFP
T
Z
outsing
Z
insing
r
,T
out
in
f
Symbol
Z
Z
out,TX
in,RX
f
L
Min
250
350
Min
Typ
175
50
50
1200
Max
800
Typ
125
100
100
Units
Ohm
Ohm
psec
Max
mV
mV
Notes/Conditions
Single ended
Single ended
20%-80%
Single ended
Single ended
Units Notes/Conditions
MHz
Ohm
Ohm
5-level encoding, per
IEEE 802.3
Differential, for all
frequencies between
1MHz and 125MHz
Differential, for all
frequencies between
1MHz and 125MHz
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