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SPT-PB4548-L40D 2.488Gbps SFP WDM Transceiver, 40km Reach 1490nm TX/1550nm RX

1550nm 1G fiber optic transceiver

SPT-PB4548-L40D

2.488Gbps SFP Bi-Directional Transceiver, 40km Reach 1490nm TX / 1550 nm RX

Features

  • Dual data-rate of 2.488Gbps/2.125Gbps operation
  • 1490nm DFB laser and PIN photo detector for 40km transmission
  • Compliant with SFP MSA and SFF-8472 with simplex LC receptacle
  • Digital Diagnostic Monitoring: Internal Calibration or External Calibration
  • Compatible with RoHS
  • +3.3V single power supply
  • Operating case temperature: Standard: 0 to +70°C

Applications

  • SDH STM-16 and SONET OC-48 system
  • Fiber Channel
  • Switch to Switch interface
  • Switched backplane applications
  • Router/Server interface
  • Other optical transmission systems

Description
The SFP-BIDI transceivers are high performance, cost effective modules supporting dual data-rate of 2.488Gbps/2.125Gbps and 40km 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 (MSA) and SFF-8472. For further information, please refer to SFP MSA.

Module Block Diagram

SPT-PB4548-L40D 2.488Gbps SFP Bi-Directional Transceiver, 40km Reach 1490nm TX / 1550 nm RX

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

Commercial

Tc

0

 

+70

°C

Power Supply Voltage

Vcc

3.13

3.3

3.47

V

Power Supply Current

Icc

 

 

300

mA

Data Rate

 

 

2.488

 

Gbps

2.125

Optical and Electrical Characteristics

Parameter

Symbol

Min

Typical

Max

Unit

Notes

Transmitter

Centre Wavelength

λc

1470

1490

1510

nm

 

Spectral Width(-20dB)

∆λ

 

 

1

nm

 

Side Mode Suppression Ratio

SMSR

30

 

 

dB

 

Average Output Power

Pout

-2

 

+3

dBm

1

Extinction Ratio

ER

9

 

 

dB

 

Optical Rise/Fall Time(20%~80%)

tr/tf

 

 

0.16

ns

 

Data Input Swing Differential

VIN

400

 

1800

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

1530

 

1570

nm

 

Receiver Power Low

 

 

 

-18

dBm

3

Receiver Power High

 

0

 

 

dBm

3

Receiver Overload

 

0

 

 

 

 

LOS De-Assert

LOSD

 

 

-23

dBm

 

LOSAssert

LOSA

-30

 

 

dBm

 

LOS Hysteresis

 

1

 

4

dB

 

Data Output Swing Differential

Vout

400

 

1800

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 2-1 test pattern @2488Mbps, BER ≤1×10
4. Internally AC-coupled.

Recommended Interface Circuit

Recommended Interface Circuit

Mechanical Dimensions
LC Receptacle

Mechanical Dimensions LC Connector

Ordering Information

Part Number

Product Description

SPT-PB4548-L40

1490nm,2.488Gbps,LC,40km,0°C~+70°C

SPT-PB4548-L40D

1490nm,2.488Gbps,LC,40km,0°C~+70°C,DDM

E-mail: sales@sopto.com


Web: http://www.sopto.com