BlueOptics BO08C28S1 1000BASE T SFP.pdf


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BO08C28S1
SFP 1.25G RJ45 100M
RoHS Compliant Copper Transceiver

5. High Speed Signals
High-Speed Electrical Interface - Transmission Line-SFP
Parameter
Symbol
Min.
Line Frequency
fL
Tx Output Impedance
Zout,TX
Rx Input Impedance
Zin,RX

Typ.
125
100
100

Max.

Unit
MHz
Ohm
Ohm

Note
1
2
2

Max.
1200
800

Unit
mV
mV
Psec
Ohm
Ohm

Note
1
1
2
1
1

Notes:
1.
2.

5 level encoding, per IEEE802.3
Differential, for all frequencies between 1MHz and 125MHz

High-Speed Electrical Interface - Host-SFP
Parameter
Symbol
Single ended data input swing
Vinsing
Single ended data output swing
Voutsing
Rise/Fall Time
Tr ,Tf
Tx Input Impedance
Zin
Rx Output Impedance
Zout

Min.
250
350

Typ.

175
50
50

Notes:
1.
2.

Single ended
20%-80%

6. SFP to Host Connector Pin Out
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20

Symbol
VEET
TFAULT
TDIS
MOD_DEF(2)
MOD_DEF(1)
MOD_DEF(0)
RS0
LOS
VEER
VEER
VEER
RDRD+
VEER
VCCR
VCCT
VEET
TD+
TDVEET

Name / Description
Transmitter Ground (Common with Receiver Ground)
Transmitter Fault indication
Transmitter Disable
Module Definition 2. Data line for Serial ID.
Module Definition 1. Data line for Serial ID.
Module Definition 0. Data line for Serial ID.
Rate Select 0
Loss of Signal indication
Receiver Ground (Common with Transmitter Ground)
Receiver Ground (Common with Transmitter Ground)
Receiver Ground (Common with Transmitter Ground)
Inv. Received Data Out
Received Data Out
Receiver Ground (Common with Transmitter Ground)
Receiver Power Supply
Transmitter Power
Transmitter Ground (Common with Receiver Ground)
Transmit Data In
Inv. Transmit Data In
Transmitter Ground (Common with Receiver Ground)

-4-

Note
1

2
2
2
3
1
1
1

1

1

1