概要

The HXT44121-1 is a single-channel, low-power, linear PAM4 Directly Modulated Laser (DML) driver with differential output and anti-reflection buffer design for LR applications. It supports signaling rates up to 56Gbps PAM4. In conjunction with a DML, the HXT44121-1 provides complete electrical-to-optical conversion, CML input with equalization, laser bias and modulations, laser power control, and various supervision.

The HXT44121-1 integrates several functions required for Automatic Power Control (APC), as well as internal and module temperature measurements and reporting. With an additional RSSI input, the user can directly measure the module receive optical power and report it. The device is designed as an AC-coupled packaged driver to work with TO-CAN or TOSA type of DML lasers.

HXT44121-1 - Block Diagram
HXT44121-1 - Block Diagram
  • 310mW power dissipation per channel
  • Supports up to: IMOD = 50mAPP and IBIAS = 120mA with VCC = 3.3V
  • Integrated 12-bit ADC with 6-channel analog multiplexer front-end
  • Programmable 8-bit laser modulation bias (average) current controls
  • Integrated bias monitor, transmit and receive power monitor capability
  • Automatic power control (APC)
  • Programmable input LOS and Squelch function with disable, transmit disable, and transmit fault indication
  • Programmable input CTLE
  • Integrated temperature sensor and input for external module temperature sensor
  • Interrupts with user-selectable mask control
  • Input polarity inversion
  • Laser disable for IMOD and IBIAS
  • Integrated OTP for calibration
  • 2-wire interface control

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
HXT44121-1 Short-Form Datasheet
PDF 109 KB
データシート
HXT44121-1 Preliminary Datasheet
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2件

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製品選択

    Processing table
    Pkg. Type
    Temp. Grade
    Carrier Type
    Moisture Sensitivity Level (MSL)
    ご購入 / サンプル
    型名
    HXT44121-1-CLJ
    circleアクティブ
    memory
    view_in_ar
    サンプル入手可能
    		 WAFER E WFP 0 サンプルを入手,
    HXT44121-1-EVB
    fast_forwardプレビュー
    memory
    view_in_ar
    		BOARD C Box 0
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