Microchip logo
  • All
  • Products
  • Documents
  • Applications Notes
product primary image

SM843256

Status: In Production

Features:

  • Generates six LVPECL outputs
  • 2.5V or 3.3V operating range
  • (1.875MHz to 20MHz): 80 fs (typical) @ 3.3V
  • 75MHz to 625MHz output frequencies
  • Industrial temperature range
  • Green, RoHS, and PFOS compliant
  • Available in 24-pin TSSOP EPAD
  • Core/Output
  • 3.3V/3.3V, 3.3V/2.5
View More
Overview
Documents
Development Environment
RoHS Information
Buy Now

Device Overview

Summary

The SM843256 provides a low-noise timing solution for high speed, high accuracy synthesis of clock signals. Common applications include SONET, Gigabit Ethernet, 10 Gigabit Ethernet, and similar networking standards.Power supplies of either 3.3V or 2.5V are supported, with superior jitter and phase noise performance. The device synthesizes different low noise LVPECL output frequencies such as 125MHz, 156.25MHz, 312.5MHz, and 625MHz for Ethernet applications; 77.76MHz, 155.52MHz, 311.04MHz, and 622.08MHz for SONET applications. The crystal reference frequencies used include 25MHz and 19.44Mhz for Ethernet and SONET applications, respectively.The SM843256 is an excellent replacement for IDT Femto-clocks, with improved accuracy, power consumption, waveform integrity, and jitter.

Additional Features
    • Generates six LVPECL outputs
    • 2.5V or 3.3V operating range
    • Typical phase jitter @ 156.25MHz
      • (1.875MHz to 20MHz): 80 fs (typical) @ 3.3V
    • 75MHz to 625MHz output frequencies
    • Industrial temperature range
    • Green, RoHS, and PFOS compliant
    • Available in 24-pin TSSOP EPAD
    • Operating supply modes:
      • Core/Output
      • 3.3V/3.3V, 3.3V/2.5
Parametrics
Name
Value
Product Type
Low-Jitter Clock Generators
Description
2x2 ver of SY100EPT23
PDB
False
OE
False
FSEL
False
CSEL
False
CLK
False
Ultra Low Power
False

Documents

Jump to:

Development tools data is currently unavailable.


Rohs data is currently unavailable.

Buy from the Microchip Store

Grid
View
Table
View
Filter:
Apply
Clear
Only show products with samples
Product
Leads
Package Type
Temp Range
Packing Media
5K Pricing
Buy