SFP+ DWDM Optical Transceiver, 20KM Reach

DWDM-SFP+-20-XX

SFP+ DWDM Optical Transceiver,20KM Reach

Features

►Compliant with SFF-8413 and IEE802.3ae

►Suitable for use in 100GHz channel spacing DWDM systems

►Data rate selectable ≤4.25Gbps or 9.95Gbps to 10.3Gbps bit rates

►Cooled EML transmitter and PIN receiver

►link length up to 20km

►Low Power Dissipation 1.5W Maximum

►-5ºC to 70ºC Operating Case Temperature

►Single 3.3V power supply

►Diagnostic Performance Monitoring of module temperature, supply Voltages, laser bias current, transmit optical power, receive optical power

►RoHS compliant and lead free

Applications

►10GBASE 20KM (with/without FEC)

►10G Fiber Channel (with/without FEC)

Description

  SFP+ER DWDM Transceiver is designed for 10GBASE 20KM, and 8.5G/10G Fiber- Channel applications.

    The transceiver consists of two sections: The transmitter section incorporates a colded EML laser. And the receiver section consists of a PIN photodiode integrated with a TIA. All modules satisfy class I laser safety requirements. Digital diagnostics functions are available via a 2-wire serial interface, as specified in SFF-8472, which allows real-time access to device operating parameters such as transceiver temperature, laser bias current, transmitted optical power, received optical power and transceiver supply voltage.

Absolute Maximum Ratings

Operating Conditions

Notes:

[1] Supply current is shared between VCCTX and VCCRX.

[2] In-rush is defined as current level above steady state current requirements.

Transmitter Specifications – Optical

Notes:

[1] RIN measurement is made with a return loss at 21 dB.

△Laser- Start of Life

▲Laser End of life

Transmitter Specifications – Electrical

Receiver Specifications – Optical

Notes:

[1] Measured with conformance test signal for BER = 10^–12. The stressed sensitivity values in the table are for system level BER measurements which include the effects of CDR circuits. It is recommended that at least 0.4 dB additional margin be allocated if component level measurements are made

without the effects of CDR circuits.

Receiver Specifications – Electrical

        Figure1.Electrical Pin-out Details

Pin Descriptions

Notes:

[1] Module circuit ground is isolated from module chassis ground within the module.

[2].should be pulled up with 4.7k – 10k ohms on host board to a voltage between 3.15Vand 3.6V.

[3]Tx_Disable is an input contact with a 4.7 kΩ to 10 kΩ pullup to VccT inside the module.

[4]Mod_ABS is connected to VeeT or VeeR in the SFP+ module. The host may pull this contact up to Vcc_Host with a resistor in the range 4.7 kΩ to10 kΩ.Mod_ABS is asserted “High” when the SFP+ module is physically absent from a host slot.

[5] RS0 and RS1 are module inputs and are pulled low to VeeT with > 30 kΩ resistors in the module.

C-band λc Wavelength Guide

Figure2. Host Board Power Supply Filters Circuit

Figure3. Host-Module Interface

Figure6. Mechanical Specifications

Ordering information