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SM843256

10G/SONET, 6 output, Low Jitter Clock Gen

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
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Overview
Documents
Development Environment
RoHS Information
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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
# of Outputs
6
Voltage
2.5, 3.3
PDB
False
OE
False
FSEL
False
CSEL
False
CLK
False
Output Logic
LVPECL
Ultra Low Power
False
Output Frequency Min. (MHz)
75
Output Frequency Max. (MHz)
625

Documents

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Dimension
Solder Composition
JEDEC Indicator
RoHS
China EFUP
SM843256KA
0.084600
0.247742
24
TSSOP
4.4mm
Matte Tin
e3
SM843256KA-TR
0.084600
0.543726
24
TSSOP
4.4mm
Matte Tin
e3
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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