Transimpedance Amplifiers
  • GN1032
  • 2.5Gb/s Transimpedance Amplifier with Automatic Gain Control
  • GN1035
  • GN1035 2.5Gb/s Transimpedance Amplifier with Automatic Gain Control
  • GN1052
  • 10/11.3 Gb/s Limiting Transimpedance Amplifier
  • GN1052CW
  • 10/11.3Gb/s Transimpedance Amplifier
  • GN1052CWA2
  • 10/11.3Gb/s Transimpedance Amplifier
  • GN1052WA2
  • 10/11.3Gb/s Transimpedance Amplifier
  • GN1055
  • 10/11.3 Gb/s Limiting Transimpedance Amplifier with Slicing Adjust
  • GN1056
  • 10/11.3 Gb/s Linear Transimpedance Amplifier
Semtech GN1068

Semtech GN1068

4-16 Gb/s Rate-Selectable Transimpedance Amplifier

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The GN1068 is an extended-capability transimpedance amplifier die. The GN1068 is user configurable for desired bit rate, where the nominal rates supported are Fibre Channel 14.025Gb/s and 8.5/4.25Gb/s rates, as well as the 10 Gigabit Ethernet rate of 10.3125Gb/s. Selection of the rate optimizes the noise performance for operation at that rate.

The GN1068 design is implemented such that electro-optic gain is well controlled for maximum RF stability in the user's package. The GN1068 is intended to offer careful RF matching of photodiode and TIA for optimized performance.

Features


 

  • On-chip decoupling
  • Designed for 0.2pF PIN Diode
  • Power dissipation: 94mW (typical)
  • Typical transimpedance gain 6.75k?
  • Rate selectable bandwidth: 12GHz for 16G Mode, 8GHz for 8G Mode
  • Low Frequency Cut-off (-3dB): 20kHz
  • Operates at OC-192 / STM-64 up to 14.5Gb/s NRZ rates
  • Received Signal Strength Indicator (RSSI) current output operates from dark current to overload
  • Operating junction temperature range: -40°C to +125°C
  • Can be used with both TO-can and alternative packaging form factors 

Applications


 

  • 4/8 and 16 Gb/s Fibre Channel
  • 10 Gigabit Ethernet
  • Serial Data Systems up to 14.5Gb/s

Order Codes

Part No

Package

XN1068D

Bare Die
(Shipped in waffle pack)

 
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