概要

The GX76476 is a low-power, high-performance, quad-channel linear driver chip. It is designed for 400G/600G optical integrated transmitter small form factor (SFF) modules for metro and long-haul applications.

The GX76476 integrates the quad lanes of the driver with SPI circuitry for DC controls on a single die. Each channel of the driver has a 100Ω differential AC-coupled input and 60Ω differential interface with an open-collector type output stage, and linear output voltage of 4.0Vppd suitable for silicon photonics modulator and multi-level modulations.

GX76476 Linear Differential I/O Driver Block Diagram
GX76476 Linear Differential I/O Driver Block Diagram
  • Data rate up to 64Gbps per channel for 400G/600G DP-mQAM applications
  • >65GHz bandwidth
  • >10dB dynamic range of gain control
  • 2.7W (typical) at linear 4.0Vppd
  • AC-coupled 100Ω differential input/open-collector configuration at the output
  • Ultra-low inter-channel crosstalk
  • Peaking adjustment functionality
  • Analog control for gain and output voltage setting, and analog monitor for peak detector and gain control monitor
  • Optical Internetworking Forum (OIF)-compliant SPI digital interface integration

アプリケーション

  • 400/600Gbps 16QAM/64QAM advanced multi-level modulation systems
  • High-bandwidth small form factor optical integrated modules

ドキュメント

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分類 タイトル 日時
データシート－簡略版
GX76476 Short-Form Datasheet
PDF 109 KB
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    GX76476-DNT
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