Sign in

Sign in
Reset PasswordCreate an Account

Create an Account

Create an Account
Sign in

1.25G SFP 1310 nm 10 km

ASCENT’s SFP-AG-LP-31-10 Small Form Factor Pluggable (SFP) transceivers are compatible with the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA). The transceiver consists of five sections: the LD driver, the limiting amplifier, the digital diagnostic monitor, the 1310nm FP laser and the PIN photo-detector .The module data link up to 10KM in 9/125um single mode fiber.

•    Up to 1.25 Gb/s data links

•    FP laser transmitter and PIN photo-detector

•    Up to 10 km on 9/125 µm SMF

•    Hot-pluggable SFP footprint

•    Duplex LC/UPC type pluggable optical interface

•    Low power dissipation

•    Metal enclosure, for lower EMI

•    RoHS compliant and lead-free

•    Single +3.3V power supply

•    Support Digital Diagnostic Monitoring interface

•    Compliant with SFF-8472

•    Switch to Switch Interface

•    Gigabit Ethernet

•    Switched Backplane Applications

•    Router/Server Interface

•    Other Optical Links


Absolute Maximum Ratings 

Parameter 

Symbol 

Min. 

Typ. 

Max. 

Unit 

Note 

Storage Temperature 

Ts 

‑40


85

°C 


Relative Humidity 

RH

5


95 


Power Supply Voltage 

VCC

‑0.5



Signal Input Voltage 


‑0.3


VCC+0.3 


Receiver Damage Threshold 


+5



dBm 


Recommended Operating Conditions 

Parameter 

Symbol 

Min. 

Typ. 

Max. 

Unit 

Note 

Case Operating Temperature

Tcase

0


70

°C 

SFP‑AG‑LP‑31‑10

‑10


80

SFP‑AG‑LP‑31‑10E‑A

‑40


85 

SFP‑AG‑LP‑31‑10U‑A

Power Supply Voltage 

VCC

3.13

3.3 

3.47 


Power Supply Current 

ICC 



280

mA 


Power Supply Noise Rejection




100

mVp‑p

100 Hz to 1 MHz

Data Rate



1.25/1.25


Gbps

TX Rate/RX Rate

Transmission Distance




 10

km


Coupled Fiber

Single‑mode fiber

9/125 µm SMF

Transmitter Specifications

Parameter 

Symbol 

Min. 

Typ. 

Max. 

Unit 

Note 

Average Output Power

POUT

‑9


‑3

dBm 

1

Extinction Ratio 

ER

9



dB 


Center Wavelength 

λC 

1270

1310

1360

nm 

FP Laser

Spectrum Bandwidth (RMS)

σ



3.5

nm


Transmitter OFF Output Power 

POff 



‑45 

dBm 


Differential Line Input Impedance

RIN

90

100

110

Ω


Output Eye Mask 

Compliant with IEEE802.3 z (class 1 laser safety)

2









Note

1. Measure at 2^7‑1 NRZ PRBS pattern. 

2. Transmitter eye mask definition 

                                               image4.png

Receiver Specifications 

Parameter 

Symbol 

Min. 

Typ. 

Max.

Unit 

Note 

Input Optical Wavelength 

λIN 

1270


1610

nm 

PIN‑TIA

Receiver Sensitivity 

PIN 



‑20

dBm 

Input Saturation Power (Overload) 

PSAT

‑3



dBm 


Loss Of Signal Assert

PA



‑22

dBm 


Loss Of Signal De‑assert

PD

‑35



dBm 

LOS Hysteresis 

PA‑PD

 0.5 

dB 


 

Notes

1. Measured with Light source 1310nm, ER=9dB; BER =<10^‑12 @PRBS=2^7‑1 NRZ. 

2. When SD De‑Assert, the RX‑LOS output is High‑level (fixed). 

Electrical Interface Characteristics

Parameter

Symbol

Min.

Typ.

Max.

Unit

Note

Transmitter 

Total Supply Current 

ICC 



mA 

1

Transmitter Disable Input‑High 

VDISH

2


VCC+0.3


Transmitter Disable Input‑Low

VDISL

0


0.8

V


Transmitter Fault Input‑High

VTxFH

2


VCC+0.3

V


Transmitter Fault Input‑Low

VTxFL

0


0.8 


Receiver 

Total Supply Current 

ICC 



mA 

LOSS Output Voltage‑High

VLOSH

 2 


VCC+0.3 

LVTTL 

LOSS Output Voltage‑Low

VLOSL

 0 


0.8 

Note

1. A (TX) + B (RX) = 280mA (Not include termination circuit) 


image1.jpeg

Series Recommendation
Related Information

Get in touch with our experts

Feedback