Laser Modulator Drivers
  • GN1157
  • 1.0 to 11.3Gb/s Multi-Rate LR Transceiver Chip
  • GN1158
  • 1.0 to 11.3Gb/s Multi-Rate SR Transceiver Chip
  • GN1160
  • 1.0 to 11.3Gb/s Multi-Rate Laser Driver Chip
  • GN1155
  • Multi-rate VCSEL Driver with Integrated Limiting Amplifier
  • GN1190
  • 1.0Gb/s to 14.5Gb/s 4-Channel VCSEL Array Driver
  • GN1411
  • 11.3G DML driver with integrated limiting amplifier
  • GN1412
  • 11.3G EML driver with integrated limiting amplifier
  • GN7355
  • Single-Chip Burst Mode 10G EPON Transceiver with Integrated CDR
Semtech GN1153B/C

Semtech GN1153B/C

11.3 Gbps DFB/FP Laser Driver

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The GN1153B and GN1153C are low power 11.3 Gbps laser and modulator drivers for optical fiber transceiver applications.

They are suitable to drive Fabry-Perot (FP) and Distributed Feedback (DFB) laser diodes. Both devices offer identical functionality, though the GN1153C is optimized to deliver improved performance at the high bit rates.

Both devices use 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 devices have 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.


  • Low power laser driveer designed to meet the power requirements of SFP+
  • Single 3.3V supply
    • Optional 5V output stage supply
  • Crossing point control
  • Jitter optimization
  • 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

Order Codes

Part No



24 pin QFN

GN1153CINE324 pin QFN
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