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VQFN (RGT) 16 9 mm² 3 x 3 open-in-new Find other Optical networking ICs


  • Up to 11.3-Gbps Operation
  • Loss-of-Signal Detection (LOS)
  • Adjustable Output Voltage
  • Low Power Consumption
  • Input Offset Cancellation
  • CML Data Outputs With On-Chip, 50- Back-Termination to VCC
  • Single 3.3 V Supply
  • Surface-Mount, Small-Footprint, 3-mm × 3-mm, 16-Pin QFN Package
    • 10 Gigabit Ethernet Optical Transmitters
    • 8× and 10× Fibre Channel Optical Transmitters
    • SONET OC-192/SDH-64 Optical Transmitters
    • XFP and SFP+ Transceiver Modules
    • XENPAK, XPAK, X2 and 300-Pin MSA Transponder Modules
    • Cable Driver and Receiver

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The ONET1191P is a high-speed, 3.3-V limiting amplifier for copper-cable and fiber-optic applications with data rates up to 11.3 Gbps.

This device provides a gain of about 40 dB which ensures a fully differential output swing for input signals as low as 5 mVpp. The output amplitude can be adjusted from 400 mVpp to 700 mVpp. Loss-of-signal detection and output disable are also provided.

The part is available in a small-footprint, 3-mm × 3-mm, 16-pin QFN package, typically dissipates less than 110 mW, and is characterized for operation from -40°C to 85°C.

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Technical documentation

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Type Title Date
* Datasheet 11.3 Gbps Limiting Amplifier datasheet Sep. 20, 2006
Application notes How to measure Total Jitter (TJ) (Rev. B) Aug. 08, 2017

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