1.25G 40KM Single Fiber Sfp Optical Transceiver
1.25GTX1310RX1490nm40KM single fiber
Product Features
1.Single LC receptacle optical interface compliant
2.Hot-pluggable SFP footprint
3.1310nm FP laser transmitter
4.RoHS compliant and Lead Free
5.Up to 40km on 9/125um SMF
6.Metal enclosure for lower EMI
7.Single 3.3V power supply
8.Low power dissipation <600mW
9.Commercial operating temperature range: 0°C to 70°C
Applications
1.Gigabit Ethernet
2.1.06 Gb/s Fibre Chann
General
Small Form Factor Pluggable (SFP) transceivers are compatible with the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA). They simultaneously comply with Gigabit Ethernet as specified in IEEE STD 802.3 and 1x Fibre Channel as defined in FC-PI-2 Rev. 10.0 .They are RoHS compliant and lead-free.
Pin descriptions
Pin |
Symbol |
Name/Description |
Ref. |
1 |
VeeT |
Transmitter Ground (Common with Receiver Ground) |
1 |
2 |
TX Fault |
Transmitter Fault |
|
3 |
TX Disable |
Transmitter Disable. Laser output disabled on high or open. |
2 |
4 |
MOD_DEF(2) |
Module Definition 2. Data line for Serial ID. |
3 |
5 |
MOD_DEF(1) |
Module Definition 1. Clock line for Serial ID. |
3 |
6 |
MOD_DEF(0) |
Module Definition 0. Grounded within the module. |
3 |
7 |
Rate Select |
No connection required |
|
8 |
LOS |
Loss of Signal indication. Logic 0 indicates normal operation. |
4 |
9 |
VeeR |
Receiver Ground (Common with Transmitter Ground) |
1 |
10 |
VeeR |
Receiver Ground (Common with Transmitter Ground) |
1 |
11 |
VeeR |
Receiver Ground (Common with Transmitter Ground) |
1 |
12 |
RD- |
Receiver Inverted DATA out. AC Coupled |
|
13 |
RD+ |
Receiver Non-inverted DATA out. AC Coupled |
|
14 |
VeeR |
Receiver Ground (Common with Transmitter Ground) |
1 |
15 |
VccR |
Receiver Power Supply |
|
16 |
VccT |
Transmitter Power Supply |
|
17 |
VeeT |
Transmitter Ground (Common with Receiver Ground) |
1 |
18 |
TD+ |
Transmitter Non-Inverted DATA in. AC Coupled. |
|
19 |
TD- |
Transmitter Inverted DATA in. AC Coupled. |
|
20 |
VeeT |
Transmitter Ground (Common with Receiver Ground) |
1 |
Notes
1. Circuit ground is internally isolated from chassis ground.
2. Laser output disabled on TX Disable >2.0V or open, enabled on TX Disable<0.8V.
3. Should be pulled up with 4.7k - 10kohms on host board to a voltage between 2.0V and 3.6V.
MOD_DEF(0) pulls line low to indicate module is plugged in.
4. LOS is LVTTL output. Should be pulled up with 4.7k ~10kohms on host board to a voltage between 2.0V and 3.6V. Logic 0 indicates normal operation; logic 1 indicates loss of signal.

Absolute Maximum Ratings
Electrical characteristics (TOP=25°C,Vcc=3.3Volts)
Optical characteristics (TOP=25°C,Vcc=3.3Volts)
General Specifications
Environmental Specifications
Commercial Temperature BIDI SFP transceivers have an operating temperature range from 0°C to +70°C case temperature.
Mechanical Specifications


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