Clocks & Timing

Overview

The 84320I-01 is a general purpose, dual output Crystal-to-3.3V Differential LVPECLHigh Frequency Synthesizer. The 84320I-01 has a selectable TEST_CLK or crystal inputs. The VCOoperates at a frequency range of 620MHz to 780MHz. The VCO frequency is programmed in steps equal to thevalue of the input reference or crystal frequency. The VCO and output frequency can be programmed using theserial or parallel interfaces to the configuration logic. The low phase noise characteristics of the 84320I-01make it an ideal clock source for 10 Gigabit Ethernet, SONET, and Serial Attached SCSI applications.

84320I-01 - Block Diagram
84320I-01 - Pinout
84320I-01 - Block Diagram
84320I-01 - Pinout
  • Dual differential 3.3V LVPECL outputs
  • Selectable crystal oscillator interface or LVCMOS/LVTTL TEST_CLK
  • Output frequency range: 77.5MHz to 780MHz
  • Crystal input frequency range: 14MHz to 40MHz
  • VCO range: 620MHz to 780MHz
  • Parallel or serial interface for programming counter and output dividers
  • Duty cycle: 44% - 56% (N > 1)
  • RMS period jitter: 2.0ps (typical)
  • RMS phase jitter at 155.52MHz, using a 38.88MHz crystal (12kHz to 20MHz): 2.38ps (typical)
  • RMS phase noise at 155.52MHz (typical) Offset Noise Power 100Hz ................. -90.5 dBc/Hz 1KHz ............... -114.2 dBc/Hz 10KHz ............... -123.6 dBc/Hz 100KHz ............... -128.1 dBc/Hz
  • 3.3V supply voltage
  • -40°C to 85°C ambient operating temperature
  • Available in lead-free (RoHS 6) package

Documentation

Title Type Date
84320I-01 Datasheet
PDF401 KB
Datasheet
AN-805 Recommended Ferrite Beads
PDF91 KB
Application Note
AN-827 Application Relevance of Clock Jitter
PDF1.99 MB
Application Note
AN-828 Termination - LVPECL
PDF322 KB
Application Note
AN-831 The Crystal Load curve
PDF395 KB
Application Note
AN-844 Termination - AC Coupling Clock Receivers
PDF170 KB
Application Note
AN-842 Thermal Considerations in Package Design and Selection
PDF495 KB
Application Note
AN-840 Jitter Specifications for Timing Signals
PDF442 KB
Application Note
AN-838 Peak-to-Peak Jitter Calculations
PDF115 KB
Application Note
AN-839 RMS Phase Jitter
PDF233 KB
Application Note
AN-832 Timing Budget and Accuracy
PDF131 KB
Application Note
AN-834 Hot-Swap Recommendations
PDF153 KB
Application Note
AN-837 Overdriving the Crystal Interface
PDF133 KB
Application Note
AN-830 Quartz Crystal Drive Level
PDF143 KB
Application Note
AN-815 Understanding Jitter Units
PDF565 KB
Application Note
AN-802 Crystal-Measuring Oscillator Negative Resistance
PDF136 KB
Application Note
AN-801 Crystal-High Drive Level
PDF202 KB
Application Note
AN-806 Power Supply Noise Rejection
PDF438 KB
Application Note
AN-803 Crystal Timing Budget and Accuracy for Renesas Timing Clock Products
PDF108 KB
Application Note
PDN# : CQ-16-04 QUARTER MARKET DECLINED PDN
PDF560 KB
End Of Life Notice
IDT Clock Generation Overview
PDF1.83 MB
Overview
PCN# : A1602-01(R1) Add Greatek Taiwan as Alternate Assembly
PDF611 KB
Product Change Notice
PCN# : A1602-01 Add Greatek Taiwan as Alternate Assembly
PDF611 KB
Product Change Notice
PCN# : TB1504-01R1 Qty per Reel Standardization for Selective Packages
PDF95 KB
Product Change Notice
PCN# : TB1504-01 Qty per Reel Standardization for Selective Packages
PDF50 KB
Product Change Notice
PCN# : A1401-02 Alternate Copper Wire Assembly Site
PDF36 KB
Product Change Notice
PCN#: A1309-03 Additional Assembly Sources
PDF398 KB
Product Change Notice
PCN# : TB1303-01 Change of Carrier Tape for TQFP-32, TQFP-48
PDF472 KB
Product Change Notice

Design & Development

Software Downloads

Title Type Date
PDN# : CQ-16-04 QUARTER MARKET DECLINED PDN
PDF560 KB
End Of Life Notice

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.

Explore ECAD Models

Models

Title Type Date
84320I-01 IBIS Model
ZIP50 KB
Model - IBIS

Product Options

    Processing table
    Part Number
    Pkg. Type
    Lead Count (#)
    Temp. Grade
    Pb (Lead) Free
    Carrier Type
    Buy / Sample
    84320AYI-01LF
    block_flippedObsolete
    memory
    view_in_ar
    		TQFP 32 I Yes Tray
    84320AYI-01LFT
    block_flippedObsolete
    memory
    view_in_ar
    		TQFP 32 I Yes Reel
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