The GN1152 is a low power 11.3 Gbps laser and modulator driver for optical fiber transceiver applications. It is suitable to drive Fabry-Perot (FP) and Distributed Feedback (DFB) Laser diodes.

The GN1152 uses a single 3.3V supply (optional 5V output stage). The inputs are designed to be AC-coupled, and have internal 100 ohms differential terminations. The output is internally terminated with 25 ohms. External pull-up inductors may be used on the outputs to provide adequate head room, to allow large signal swings from a 3.3V supply.

The device has control inputs for laser output power, extinction ratio (ER) and output crossing point adjustments. Additional control pins are available to further optimize the output eye shape.

• Low power
• Single 3.3V supply
  • Optional 5V output stage supply
• Crossing point control
• Eye shaping technology
• Max modulation current: 80 mA-pp (differential drive into 25Ω TOSA)
• Max bias current: 120 mA
• Input: AC coupled CML compatible, differential 100Ω on-chip termination
• Output: 25Ω output termination
• Bias and modulation current control
• Transmitter disable pin

This DFB/FP laser driver is designed to meet the needs of Xenpak, X2, XFP or SFP+ optical fiber transceiver applications, including:
• 9.95 Gbps OC-192 and 10.7 Gbps OC-192 with Forward Error Correction (FEC)
• 10.3 Gbps Ethernet
• 10.52 Gbps Fiber Channel (FC)
• 11.1 Gbps Ethernet over SONET
• 11.3 Gbps FC with FEC

Application Diagrams

• Optical Transceiver

Contact Gennum for datasheet and other downloads.

Phone: +1 (905) 632-2999, x4113
Fax: +1 (905) 332-6731
Email: datacomsales@gennum.com