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SY87729L

Status: In Production

Features:

  • Fractional synthesizer from 10MHz to 365MHz from a single 27MHz reference oscillator
  • Generates exactly the correct frequency for common transport protocols with or without FEC
  • Directly enables SY87721L to lock onto any data rate within its range
  • Exceeds BellCore and ITU jitter generation specifications
  • Programmable via MicroWire™ interface
  • Available in 32-Pin EPAD-TQFP package
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

The SY87729L is a complete rate independent frequency synthesizer integrated circuit. From a single reference source, this device generates a differential PECL reference frequency for Micrel's SY87721L 10Mbps to 2.7Gbps combined CDR and CMU.The SY87729L generates an exactly correct reference frequency for common data transport protocols. This is especially important in transponder applications, where a standards compliant protocol data unit must be generated downstream, even in the absence of any signal from the associated upstream interface.In addition, SY87729L will generate exactly correct reference frequencies for common data transport protocols augmented by forward error correction codes.For proprietary applications, the SY87729L generates reference frequencies guaranteed to enable the SY87721L CDR to lock to any possible baud rate in its range. SY87729L accepts configuration via a MicroWire™ interface.

Additional Features
    • Fractional synthesizer from 10MHz to 365MHz from a single 27MHz reference oscillator
    • Generates exactly the correct frequency for common transport protocols with or without FEC
    • Directly enables SY87721L to lock onto any data rate within its range
    • Exceeds BellCore and ITU jitter generation specifications
    • Programmable via MicroWire™ interface
    • Available in 32-Pin EPAD-TQFP package
Parametrics
Name
Value
Product Type
Clock Synthesizers
PDB
False
OE
False
FSEL
False
CSEL
False
CLK
False
Ultra Low Power
False

Documents

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Data Sheets

11/11/2015
498KB

User Guides


Development tools data is currently unavailable.

RoHS Information

Part Number
Device Weight (g)
Shipping Weight (grams)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
SY87729LHY-TR
0.138900
0.656200
32
TQFP
7x7x1.0mm
Matte Tin
e3
SY87729LHY
0.138900
0.985800
32
TQFP
7x7x1.0mm
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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