MAX9424

Lowest Jitter Quad PECL-to-ECL Differential Translators

Data Sheet (Rev. 0)
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Overview

  • 0.24psRMS Added Random Jitter
  • 10ps Channel-to-Channel Skew in Synchronous Mode
  • Guaranteed 500mV Differential Output at 3GHz Clock Frequency
  • 420ps Propagation Delay in Asynchronous Mode
  • Functionally Compatible with
    • SK4426 (MAX9424)
    • SK4430 (MAX9425)
    • SK4436 (MAX9426)
    • SK4440 (MAX9427)
  • Integrated 50Ω Outputs (MAX9425/MAX9427)
  • Integrated 100Ω Inputs (MAX9426/MAX9427)
  • Synchronous/Asynchronous Operation

The MAX9424-MAX9427 high-speed, low-skew quad PECL-to-ECL translators are designed for high-speed data and clock driver applications. These devices feature an ultra-low 0.24ps(RMS) random jitter and channel-to-channel skew is less than 90ps in asynchronous mode.

The four channels can be operated synchronously with an external clock, or in asynchronous mode determined by the state of the SEL input. An enable input provides the ability to force all the outputs to a differential low state.

The parts differ from one another by their input and output termination options. The input options are an open input or an internal differential 100Ω termination. The output options are an open-emitter output or a series 50Ω termination. See Ordering Information.

The MAX9424-MAX9427 operate from a positive voltage supply of +2.375V to +5.5V, and a negative supply voltage of -2.375V to -5.5V and operate across the extended temperature range of -40°C to +85°C. They are offered in 32-pin 5mm x 5mm TQFP and space-saving 5mm x 5mm QFN packages.

Applications

  • Cell Phones/Cordless Phones
MAX9424
Lowest Jitter Quad PECL-to-ECL Differential Translators
MAX9424, MAX9425, MAX9426, MAX9427: Functional Diagram
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Documentation

Data Sheet 1

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Hardware Ecosystem

Parts Product Life Cycle Description
Level Translators & Buffers 4
MAX9400
Quad Differential LVECL/LVPECL Buffer/Receivers
MAX9402
Quad Differential LVECL/LVPECL Buffer/Receivers
MAX9403
Quad Differential LVECL/LVPECL Buffer/Receivers
MAX9405
Quad Differential LVECL/LVPECL Buffer/Receivers
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Evaluation Kits

MAX9424EVKIT

Evaluation Kit for the MAX9424, MAX9425, MAX9426, MAX9427

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Features and Benefits

  • Controlled 50Ω Coplanar Impedance Traces
  • Output Trace Lengths Matched to < 1mil (25.4 x 10-3mm)
  • Frequency Range
    • 2GHz (min) at Asynchronous Mode
    • 3GHz (min) at Synchronous Mode
  • 32-Pin TQFP 5mm x 5mm Package
  • Surface-Mount Construction
  • Fully Assembled and Tested

Product Details

The MAX9424 evaluation kit (EV kit) is a fully assembled and tested surface-mount printed circuit (PC) board. The EV kit includes the MAX9424, a four-channel low-skew PECL/LVPECL-to-ECL/LVECL translator. The EV kit accepts differential PECL/LVPECL input signals and converts these differential ECL/LVECL signals at an operating frequency up to 3GHz.

The MAX9424 EV kit is a four-layer PC board with 50Ω controlled-impedance traces. It can also be used to evaluate the MAX9425/MAX9426/MAX9427 PECL/LVPECL-to-ECL/LVECL translators with different internal input and output terminations.

Applications

  • Automated Test Equipment (ATE)
  • Central Office Backplane Clock Distribution
  • Data and Clock Driver and Buffer
  • DSLAM Backplane
  • Wireless Base Stations
MAX9424EVKIT
Evaluation Kit for the MAX9424, MAX9425, MAX9426, MAX9427

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