Overview

The 8V34S204 is a differential 1:4 LVDS fanout buffer with a 2:1 input multiplexer. The device accepts DC to 250MHz clock and data signals and is designed for 1Hz clock/1PPS, 2kHz and 8kHz signal distribution. Controlled by the input modes election pin, the differential input stages accept both rectangular or sinusoidal signals. The 8V34S204 also provides level translated LVCMOS/LVTTL outputs which are copies of the individual differential inputs CLKA and CLKB. The propagation delay of the device is very low, providing a ideal solution for clock distribution circuits with tight phase alignment requirements. The multiplexer select pin (SEL) allows to select one out of two input signals, which is copied to the four differential outputs.

 

8V34S204I - Block Diagram
8V34S204I - Pin Assignment
8V34S204I - Block Diagram
8V34S204I - Pin Assignment
  • Designed for 1PPS, 2kHz, 8kHz and 10MHz GPS clock signal distribution
  • High speed 1:4 LVDS fanout buffer
  • Four differential LVDS output pairs
  • 2:1 input multiplexer
  • Two selectable differential inputs accept LVDS and LVPECL signals
  • Accepts rectangular and sinusoidal input signals
  • Two input monitoring outputs (LVCMOS)
  • Max Output frequency: 250MHz
  • Additive phase jitter, RMS;
    12kHz to 20MHz: = 65fs at 156.25MHz (typical)
  • Part-to-part skew: 200ps (maximum)
  • Propagation delay (differential outputs): 350ps (typical)
  • Full 2.5V and 3.3V voltage supply
  • -40°C to 85°C ambient operating temperature
  • Lead-free 24-lead VFQFN (RoHS 6/6) packaging

Documentation

Design & Development

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

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Product Options

    Processing table
    Pkg. Type
    Lead Count (#)
    Temp. Grade
    Pb (Lead) Free
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    Part Number
    8V34S204NLGI
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    		VFQFPN 24 I Yes Tray
    8V34S204NLGI8
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    view_in_ar
    		VFQFPN 24 I Yes Reel
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