GN1153B/C

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.

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

Part No	Package
GN1153BINE3	24 pin QFN
GN1153CINE3	24 pin QFN