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Microchip Technology

Microchip Technology IC Amplifiers Part #SY88353BLMG-TR | IC | DEX

Microchip Technology IC Amplifiers Part #SY88353BLMG-TR | IC | DEX

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Microchip Technology IC Amplifiers Part #SY88353BLMG-TR

The SY88353BL limiting post amplifier is designed for use in fiber-optic receivers, and is specially optimized for WDM applications where optical amplifiers such as EDFAs and Raman amplifier are used. The device connects to typical transimpedance amplifiers (TIAs). The linear signal from TIAs can contain significant amounts of noise that is unevenly distributed between top and bottom rails due to the ASE noise generated by the optical amplifiers, crosstalk, or non-linear effect in the fiber. In order to optimize the BER in such noisy conditions, the decision threshold between bit 1 and bit 0, needs to be moved to the rail that contains less noise. The SY88353BL features a pin at which an external voltage can be applied to move the crossing point up and down, from 20% to 80%, for BER optimization purposes.



  • <5ns SD Assert (LOS Deassert) time
  • Option to AUTO RESET or manual RESET LOS/SD output
  • Selectable LOS/SD output option
  • High-sensitivity LOS/SD signal detect
  • Low-noise LVPECL data outputs
  • Squelching function to maintain output stability
  • Programmable LOS/SD level set (LOS/SDLVL)
  • 5mVpp input sensitivity
  • 1.25Gbps operation
  • Single 3.3V power supply
  • Available in a 16-pin (3mm × 3mm) QFN package



  • Gigabit Ethernet
  • Fibre Channel
  • OC-3/12/24 SONET/SDH
  • High-gain line driver and line receiver 




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