Generic Compatible 25G ER SFP28 1310nm 40km DOM Duplex LC SMF Optical Transceiver Module

SFP28-25-13-40(ER)-LCD

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SPECIFICATIONS
Product ModelSFP28-25-13-40(ER)-LCDManufacturer BrandPHILISUN
Package TypeSFP28Optical ConnectorDuplex LC
Max Data Rate25.78GChannel Data Rate10.31Gbps
Effective Transmission Distance40km
Wavelength1310nmOperating Voltage3.3V
Fiber TypeSMFCore Size9/125µm
Transmitter TypeEMLReceiver TypeAPD
TX Power0~6dBmReceiver Sensitivity<-19dBm
Digital Optical Monitoring(DOM)YESReceiver Overload-5dBm
Power Consumption≤1.5WProtocolsMSA, CPRI, eCPRI1
Operating Temperature(Commercial)0℃~+70℃Storage Temperature(Commercial)-40℃~+85℃

 

PRODUCT PRESENTATION
The PHILISUN SFP28 25G 1310nm 40km ER LC DX is an ultra-compact optical transceiver module designed to convert 25Gbps serial CML electrical data into optical signals in compliance with the 25GBASE-ER standard. Its electrical interface adheres to SFI specifications, while the EML transmitter and APD receiver deliver exceptional performance for Ethernet applications, supporting links of up to 40km over single-mode fiber (SMF).This SFP28 ER module is fully compliant with SFF-8431, SFF-8432, and IEEE 802.3CC 25GBASE-ER standards. It also supports digital diagnostic functions via a 2-wire serial interface, as outlined in SFF-8472.With a fully SFP-compliant form factor, the module offers hot-pluggability, seamless optical port upgrades, and low EMI emissions, making it a reliable and efficient solution for high-speed networking.

 

TRANSCEIVER SERIES PRODUCTS

 

PRODUCTION & TESTING EQUIPMENT

 

PERFORMANCE PARAMETER
Absolute Maximum Ratings
Parameter Symbol Min. Typ. Max. Unit Ref.
Storage temperature TS -40 – +85 °C –
Case operating temperature TA 0 – 70 °C –
Maximum supply voltage Vcc 0 – 3.6 V –
Relative humidity RH 5 – 95 % –

 

Electrical Characteristics
Parameter Symbol Min. Typ. Max. Unit Note
Supply voltage VCC 3.135 – 3.465 V –
Supply current Icc – – 450 mA –
Power consumption P – – 1.5 W –
Data rate R – 25.78 – Gb/s –
Transmitter Section:
Input differential impedance Rin – 100 – Ω 1
Tx input single ended DC voltage tolerance (Ref VeeT) V -0.3 – 4 V –
Differential input voltage swing Vin,pp 180 – 700 mV 2
Transmit disable voltage VD 2 – Vcc V –
Transmit enable voltage VEN Vee – Vee+0.8 V –
Receiver section:
Single ended output voltage tolerance V -0.3 – 4 V –
Rx output diff voltage Vo 150 – 900 mV –
Rx output rise and fall time Tr/Tf 9.5 – – ps 3
LOS fault VLOS fault 2 – VCCHOST V 4
LOS normal VLOS norm Vee – Vee+0.8 V 4
Notes:
1.Connected directly to TX data input pins. AC coupling from pins into laser driver IC.
2.Per SFF-8431 Rev 3.0
3.20%～80%
4.LOS is an open collector output. Should be pulled up with 4.7k – 10kΩ on the host board. Normal operation is logic 0; loss of signal is logic 1. Maximum pull-up voltage is 5.5V.

 

Optical Characteristics
Parameter Symbol Min. Typ. Max Unit Notes
Transmitter Section:
Center wavelength λt 1295 – 1310 nm –
Spectral width △λ – – 1 nm –
Average optical power Pavg 0 – +6 dBm 1
Laser off power Poff – – -30 dBm –
Extinction ratio ER 4 – – dB –
Receiver Section:
Center wavelength λr 1295 – 1325 nm –
Receiver sensitivity(OMA) Sen – – -19 dBm 2
Stressed sensitivity(OMA) Sen2 – – -16.5 dBm 2
Los assert LOSA -30
–
 – dBm –
Los dessert LOSD –
–
 -11 dBm –
Los hysteresis LOSH 0.5 –
5
 dB –
Overload – -9 –
–
 dBm 3
Receiver reflectance – – – -12 dB –
Notes:
1.Average power figures are informative only, per IEEE802.3CC.
2.Conditions of stressed receiver tests per IEEE802.3CC. At 5E-5 BER.
3.Receiver overload specified in OMA and under the worst comprehensive stressed condition.

 

Timing Characteristics
Parameter Symbol Min. Typ. Max. Unit
TX_disable assert time t_off – – 100 us
TX_disable negate time t_on – – 2 ms
Time to initialize include reset of TX_FAULT t_int – – 300 ms
TX_FAULT from fault to assertion t_fault – – 1 ms
TX_disable time to start reset t_reset 10 – – us
Receiver loss of signal assert time TA,RX_LOS – – 100 us
Receiver loss of signal deassert time Td,RX_LOS – – 100 us
Rate-select chage time t_ratesel – – 10 us
Serial ID clock time t_serial-clock – – 100 kHz

 

Digital Diagnostic Monitoring Information
Data Address Parameter Accuracy Unit
96-97 Transceiver internal temperature ±3.0 ℃
98-99 VCC3 internal supply voltage ±3.0 %
100-101 Laser bias current ±10 %
102-103 Tx output power ±2.0 dBm
104-105 Rx input power ±2.0 dBm

 

PIN ASSIGNMENT

Diagram of Host Board Connector Block Pin Numbers and Names

 

Pin Symbol Name/Description Plug Seq.
1 VeeT Module transmitter ground 1
2 TX fault Module transmitter fault 2
3 TX disable Transmitter disable; turns off transmitter laser output 3
4 SDL 2 wire serial interface data input/output (SDA) 4
5 SCL 2 wire serial interface clock input (SCL) 4
6 MOD_ABS Module absent, connect to VeeR or VeeT in the module 2
7 RS0 Rate select0: module inputs and are pulled low to VeeT with >30kΩ resistorsin the module. –
8 LOS Receiver Loss of signal indication –
9 RS1 Rate select1: module inputs and are pulled low to VeeT with >30kΩ resistorsin the module. –
10 VeeR Module receiver ground 1
11 VeeR Module receiver ground 1
12 RD- Receiver inverted data out put –
13 RD+ Receiver non-inverted data out put –
14 VeeR Module receiver ground 1
15 VccR
Module receiver 3.3V supply
 –
16 VccT Module transmitter 3.3V supply –
17 VeeT Module transmitter ground 1
18 TD+ Transmitter non-inverted data out put –
19 TD- Transmitter inverted data out put –
20 VeeT Module transmitter ground 1
Notes:
1.The module ground pins shall be isolated from the module case.
2.This pin is an open collector/drain output pin and shall be pulled up with 4.7K-10Kohms to Host_Vcc on the host board.
3.This pin shall be pulled up with 4.7K-10Kohms to VccT in the module.
4.This pin is an open collector/drain output pin and shall be pulled up with 4.7K-10Kohms to Host_Vcc on the host board.

 

PRODUCT CERTIFICATION

 

QUALITY ADVANTAGE

 

COMPATIBLE BRANDS
CONFIGURATION INFORMATION
光模块产品详情订购信息---SFP28

 

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