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  • 25G DWDM 10KM CH58 1531.12nm SFP Transceiver

25G DWDM 10KM CH58 1531.12nm SFP Transceiver

Availability:

Collections: Alcatel lucent, SFP Transceivers

Vendor: skyward

Tags: —

Product Features

  • Supports up to 25.78Gbps bit rates
  • Hot-pluggable SFP28footprint
  • CWDM 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

Industrial: -40 to +85°C

25G DWDM 10KM CH58 1531.12nm SFP Transceiver

Applications

  • 25GBASE-LR

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.

Typical

Max.

Unit

Storage Temperature

TS

-40

 

+85

°C

Case Operating Temperature

TA

0

 

+70

°C

Maximum Supply Voltage

Vcc

0

 

3.6

V

Relative Humidity(Non-condensing)

RH

0

 

85

%

 

Electrical Characteristics (TOP =0 to 70 °C, VCC = 3.15 to 3.46 Volts)

Parameter

Symbol

Min.

Typical

Max.

Unit

Note

Supply Voltage

Vcc

3.15

 

3.46

V

 

Supply Current

Icc

 

 

600

mA

 

Power Consumption

P

 

 

2

W

 

Data Rate

R

-

25.8

 

Gb/s

 

Fiber Length

L

 

 

10

KM

 

Transmitter Section:

Input differential impedance

Rin

 

100

 

Ω

1

Differential input voltage swing

Vin,pp

180

 

450

mV

2

Transmit Disable Voltage

VD

2

 

Vcc

V

3

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

180

 

450

mV

 

LOS Fault

VLOS fault

2

 

VccHOST

V

4

LOS Normal

VLOS norm

Vee

 

Vee+0.8

V

4

Note:

  1. Connected directly to TX data input pins. AC coupling from pins into laser driver IC.
  2. Per SFF-8431 Rev 3.0
  3. Into 100 ohms differential termination.
  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 (TOP =0 to 70 °C,VCC = 3.15 to 3.46 Volts)

Parameter

Symbol

Min.

Typical

Max.

Unit

Note

Transmitter Section:

Center Wavelength

λt

λ -6.5

λ

λ +6.5

nm

 

spectral width (-20dB)

△λ

 

 

1

nm

 

Average Optical Power

Pavg

-4.0

 

+2.0

dBm

1

Laser Off Power

Poff

 

 

-30

dBm

 

Side Mode Suppression Ratio

 

30

 

 

 

 

Extinction Ratio

ER

5

 

 

dB

 

Optical Return Loss Tolerance

 

 

 

-12

dB

 

Receiver Section:

Center Wavelength

λr

1260

 

1610

nm

 

Receiver Sensitivity

Sen

 

 

-12

dBm

2

Los Assert

LOSA

-30

 

 

dBm

 

Los Dessert

LOSD

 

 

-16

dBm

 

Los Hysteresis

LOSH

0.5

 

 

dB

 

Overload

 

2

 

 

dBm

 

Note:

  1. Average power figures are informative only, per IEEE802.3cc.
  2. OMA receiver sensitivity is informative. Shall be measured with conformance test signal for . BER =5E-5 .

Timing Characteristics

Parameter

Symbol

Min.

Typical

Max.

Unit

TX_Disable Assert Time

t_off

 

 

100

us

TX_Disable Negate Time

t_on

 

 

2

ms

Time to Initialize 2-wire interface

t_2w_start_up

 

 

300

ms

Time to Initialize

t_start_up

 

 

300

ms

Time to Initialize cooled module and time to power up a cooled module to Power level II

t_start_up_cooled

 

 

90

s

Time to Power Up to Level II

t_power_level2

 

 

300

ms

Time to Power Down from Level II

t_power_down

 

 

300

ms

Tx_Fault assert

Tx_Fault_on

 

 

1

ms

Tx_Fault assert for cooled module

Tx_Fault_on_cooled

 

 

50

ms

TX_FAULT Reset

t_reset

10

 

 

us

Rx_LOS assert delay

t_los_on

 

 

100

us

Rx_LOS negate delay

t_los_off

 

 

100

us

 

Digital Diagnostic Specifications

Parameter

Symbol

Units

Min

Max

Accuracy

Transceiver Temperature

DDDTemp

ºC

0

+70

±5ºC

Transceiver Supply Voltage

DDDVoltage

V

3.15

3.45

±3%

Transmitter Bias Current

DDDBias

mA

0

35

±10%

Transmitter Output Power

DDDTx-Power

dBm

-5

+5

±3dB

Receiver Average Optical Input Power

DDDRx-Power

dBm

-16

-3

±3dB

 

Ordering information

Part Number

Product Description

BT-SFP28-LR4Cxxxx

1470~1570nm, 25.78Gbps, LC, 10km, 0°C~+70°C, with DDM

BT-SFP28-LR4ICxxxx

1470~1570nm, 25.78Gbps, LC, 10km, -40°C~+85°C, with DDM

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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8613556898274 support@skywardtel.com

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