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  • 25G DWDM 10km CH34 1550nm SFP+ Transceiver

25G DWDM 10km CH34 1550nm SFP+ Transceiver

Availability:

Collections: Alcatel lucent, SFP+ Transceivers

Vendor: skyward

Tags: —

Features

  • Supports up to 25.78Gbps bit rates
  • Hot-pluggable SFP+ footprint
  • 1310nm DFB laser and PIN photodiode, Up to 10km for SMF transmission
  • Compliant with SFP+ MSA and SFF-8472 with duplex LC receptacle
  • Compatible with RoHS
  • Single +3.3V power supply
  • Real Time Digital Diagnostic Monitoring
  • Operating case temperature:

Standard:  0 to +70°C

 25G DWDM 10km CH34 1550nm SFP+ Transceiver

Description

The SFP28 transceivers are high performance, cost effective modules supporting data rate of 25.78Gbps and 10km transmission distance with SMF.

 The transceiver consists of three sections: a DFB laser transmitter, a PIN photodiode integrated with a trans-impedance preamplifier (TIA) and MCU control unit. All modules satisfy class I laser safety requirements.

The transceivers are compatible with SFP Multi-Source Agreement and SFF-8472 digital diagnostics functions.

Absolute Maximum Ratings

Parameter

Symbol

Min

Max

Unit

Supply Voltage

Vcc

-0.5

4.5

V

Storage Temperature

Ts

-40

+85

°C

Operating Humidity

-

5

85

%

 

Recommended Operating Conditions

Parameter

Symbol

Min

Typical

Max

Unit

Operating Case Temperature

Tc

0

 

+70

°C

Power Supply Voltage

Vcc

3.135

3.30

3.465

V

Power Supply Current

Icc

 

 

400

mA

Data Rate

 

 

25.78

 

Gbps

 

Optical and Electrical Characteristics

Parameter

Symbol

Min

Typical

Max

Unit

Notes

Transmitter

Centre Wavelength

λc

1270

1310

1350

nm

 

Spectral Width(-20dB)

Δλ

 

 

1

nm

 

Side-Mode Suppression Ratio

SMSR

30

-

 

dB

 

Average Output Power

Pout

-7

 

2

dBm

1

Extinction Ratio

ER

3.5

 

 

dB

 

Data Input Swing Differential

VIN

180

 

850

mV

2

Input Differential Impedance

ZIN

90

100

110

Ω

 

TX Disable

Disable

 

2.0

 

Vcc

V

 

Enable

 

0

 

0.8

V

 

TX Fault

Fault

 

2.0

 

Vcc

V

 

Normal

 

0

 

0.8

V

 

Receiver

Centre Wavelength

λc

1260

 

1600

nm

 

Receiver Sensitivity

 

 

 

-13.3

dBm

3

Receiver Overload

 

 

 

2

dBm

3

LOS De-Assert

LOSD

 

 

-15

dBm

 

LOS Assert

LOSA

-30

 

 

dBm

 

LOS Hysteresis

 

0.5

 

 

dB

 

Data Output Swing Differential

Vout

300

 

900

mV

4

LOS

High

2.0

 

Vcc

V

 

Low

 

 

0.8

V

 

 

Notes:

  1. The optical power is launched into SMF.
  2. PECL input, internally AC-coupled and terminated.
  3. Measured with a PRBS 231-1 test pattern @25.78Gps, BER ≤5×10-5.
  4. Internally AC-coupled.     

Timing and Electrical

Parameter

Symbol

Min

Typical

Max

Unit

Tx Disable Negate Time

t_on

 

 

2

ms

Tx Disable Assert Time

t_off

 

 

100

µs

Time To Initialize, including Reset of Tx Fault

t_init

 

 

300

ms

Tx Fault Assert Time

t_fault

 

 

100

µs

Tx Disable To Reset

t_reset

10

 

 

µs

LOS Assert Time

t_loss_on

 

 

100

µs

LOS De-assert Time

t_loss_off

 

 

100

µs

Serial ID Clock Rate

f_serial_clock

 

100

400

KHz

MOD_DEF (0:2)-High

VH

2

 

Vcc

V

MOD_DEF (0:2)-Low

VL

 

 

0.8

V

 

 Diagnostics

Parameter

Range

Unit

Accuracy

Calibration

Temperature

  0 to +70

°C

±3°C

Internal

Voltage

3.0 to 3.6

V

±3%

Internal

Bias Current

0 to 100

mA

±10%

Internal

TX Power

-7 to 2

dBm

±3dB

Internal

RX Power

-14 to +2

dBm

±3dB

Internal

 

 Digital Diagnostic Memory Map

The transceivers provide serial ID memory contents and diagnostic information about the present operating conditions by the 2-wire serial interface (SCL, SDA).

 

The diagnostic information with internal calibration or external calibration all are implemented, including received power monitoring, transmitted power monitoring, bias current monitoring, supply voltage monitoring and temperature monitoring.

About US

Skyward telecom always take honesty as our motto and provide network security & computer asset management solutions to users in over 80 countries, which has been recognized by the market.

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CONTACT US

HongKong: 11th Floor, The Center, 99 Queen's Road Central, Central, Hong Kong.

8613556898274 support@skywardtel.com

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