100Gb/s QSFP28 PSM4 2km Optical Transceiver

100Gb/s QSFP28 PSM4 2km Optical Transceiver

Product Features

• Four-channel full-duplex transceiver modules
• Transmission data rate up to 26Gbit/s per channel
• Up to 2km transmission of single mode fiber
• Low power consumption <3.5W
• Operating case temperature 0℃ to 70℃
• 3.3V power supply voltage
• RoHS 6 compliant
• Hot Pluggable QSFP28 form factor
• Single MPO connector receptacle
• Built-in digital diagnostic function

Applications

• 100G Ethernet
• Proprietary High Speed Interconnections

Ordering Information

• QSFP28 PSM4, MPO connector, 2km over sm fiber

Absolute Maximum Ratings

The operation in excess of any absolute maximum ratings might cause permanent damage to this module.

Recommended Operating Conditions and Power Supply Requirements

Electrical Characteristics

Optical Characteristics

Notes:

1. Transmitter wavelength, RMS spectral width and power need to meet the OMA minus TDP specs to guarantee link performance.

2. The eye diagram is tested with 1000 waveform.

3. Measured with a PRBS 231 -1 test pattern, @25.78Gb/s, BER<5*10 -5

Digital Diagnostic Functions

The following digital diagnostic characteristics are defined over the normal operating conditions unless otherwise specified.

Power Supply Filtering

The host board should use the power supply filtering shown in Figure1.

Figure1. Host Board Power Supply Filtering

Optical Interface Lanes and Assignment

The optical interface port is a male MPO connector. The four fiber positions on the left as shown in Figure 2, with the key up, are used for the optical transmit signals (Channel 1 through4). The fiber positions on the right are used for the optical receive signals (Channel 4 through 1). The central four fibers are physically present.

Figure 2. Optical Receptacle and Channel Orientation

Mechanical Dimensions

Attention: To minimize MPO connection induced reflections, an MPO receptacle with 8-degree angled end-face is utilized for this product. A male MPO connector with 8-degree end-face should be used with this product as illustrated in Figure 5.

ESD

This transceiver is specified as ESD threshold 1kV for SFI pins and 2kV for all other electrical input pins, tested per MIL-STD-883, Method 3015.4 /JESD22-A114-A (HBM). However, normal ESD precautions are still required during the handling of this module. This transceiver is shipped in ESD protective packaging. It should be removed from the packaging and handled only in an ESD protected environment.

Laser Safety

This is a Class 1 Laser Product according to IEC 60825-1:2007. This product complies with 21 CFR 1040.10 and 1040.11 except for deviations pursuant to Laser Notice No. 50, dated (June 24, 2007).

Pin Assignment and Description

Pin Assignment