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4G CWDM SFP 40km Transceiver

Features

Single 3.3 V supply

40 kmreach

Supports 1.06/2.125/4.25Gb/s Fiber Channel Operation

Gigabit Ethernet compatible

CWDM DFB Laser

SFP MSA SFF-8074i compliant

Digital Diagnostic SFF-8472 compliant

Compatible with RoHS

Operating case temperature: Standard: 0 to +70°C, Industrial: -40 to +85°C

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4G CWDM SFP 40km Transceiver                                                                                                                                                

 

Applications

Tri Rate 1.0625 / 2.125 / 4.25Gbp/s Fiber Channel

 

Description

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 the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA) 1. They are compatible with Fiber Channel per FC-PI-2 Rev. 10.0. Also simultaneously compatible with Gigabit Ethernet as specified in IEEE Std 802.3.

 

Optical and Electrical Characteristics

SPT-PCXX4G-40D(D): (CWDM+PIN, 40km Reach)

Parameter

Symbol

Min

Typical

Max

Unit

Notes

Transmitter

Data Rate

 

 

4.25

 

Gb/S

 

Centre Wavelength

λc

-6.5nm

1XXX

+6.5nm

nm

 

Spectral Width

∆λ

 

 

1

nm

 

Side Mode Suppression Ratio

SMSR

20

 

 

dB

 

Average Output Power(BOL)

Pout

0

 

5

dBm

1

Extinction Ratio

ER

5

 

 

dB

 

Average Launch Power-OFF Transmitter

Pout

 

 

-40

dBm

 

Optical Eye Diagram

Fiber Channel Compliant

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

tr/tf

 

 

130

ps

 

Data Input Swing Differential

VIN

200

 

2400

mV

2

Input Differential Impedance

ZIN

90

100

120

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

 

1360

nm

 

Receiver Sensitivity(BOL)

Sen.

 

 

-18

dBm

3

LOS De-Assert

LOSD

 

 

-18

dBm

 

LOS Assert

LOSA

-28

 

 

dBm

 

LOS Hysteresis

 

0.5

 

6

dB

 

Receiver Reflectance

 

 

 

-20

dB

 

Data Output Swing Differential

Vout

350

 

1800

mV

4

Loss of Signal (LOS) Assert Time

TAssert

 

 

500

nS

 

Loss of Signal (LOS) Dessert Time

Dessert

 

 

500

nS

 

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 27-1 test pattern @4250Mbps, BER ≤1×10-12.

4. CML Output, internally AC-coupled.

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