NOTICE - The following device(s) are recommended alternatives:

The 8432-111 is a general purpose, dual output Differential-to-3.3V LVPECL High Frequency Synthesizer. The 8432-111 has a selectable differential CLK, nCLK pair or LVCMOS/LVTTL TEST_CLK. The TEST_CLK input accepts LVCMOS or LVTTL input levels and translates them to 3.3V LVPECL levels. The CLK, nCLK pair can accept most standard differential input levels.The VCO operates at a frequency range of 200MHz to 700MHz. The VCO frequency is programmed in steps equal to the value of the input differential or single ended reference frequency. Output frequencies up to 700MHz for FOUT and 350MHz for FOUT/2 can be programmed using the serial or parallel interfaces to the configuration logic. The low phase noise characteristics and the multiple frequency outputs of the 8432-111 makes it an ideal clock source for Fibre Channel 1 and 2, and Infiniband applications.

Features

  • Dual differential 3.3V LVPECL outputs
  • Selectable differential CLK, nCLK pair or LVCMOS TEST_CLK
  • CLK, nCLK pair can accept the following differential input levels: LVPECL, LVDS, LVHSTL, SSTL, HCSL
  • TEST_CLK can accept the following input types: LVCMOS or LVTTL
  • Maximum FOUT frequency: 700MHz Maximum FOUT/2 frequency: 350MHz
  • CLK, nCLK or TEST_CLK input frequency: 40MHz
  • VCO range: 250MHz to 700MHz
  • Parallel or serial interface for programming counter and VCO frequency multiplier and dividers
  • RMS period jitter: 5ps (maximum)
  • Cycle-to-cycle jitter: 40ps (maximum)
  • 3.3V supply voltage
  • 0°C to 70°C ambient operating temperature
  • Available in lead-free (RoHS 6) package

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
8432CY-111LF Obsolete PRG32 TQFP 32 C Yes Tray
Availability
8432CY-111LFT Obsolete PRG32 TQFP 32 C Yes Reel
Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
Errata# NEN-10-08 Datasheet Errata PDF 64 KB
PCN# N0612-02 Datasheet Change Datasheet Change Notice PDF 12 KB
Application Notes & White Papers
AN-828 Termination - LVPECL Application Note PDF 229 KB
AN-831 The Crystal Load curve Application Note PDF 308 KB
AN-844 Termination - AC Coupling Clock Receivers Application Note PDF 82 KB
AN-842 Thermal Considerations in Package Design and Selection Application Note PDF 403 KB
AN-835 Differential Input with VCMR being VIH Referenced Application Note PDF 77 KB
AN-803 Crystal Timing Budget and Accuracy for IDT Timing Clock Products Application Note PDF 44 KB
AN-840 Jitter Specifications for Timing Signals Application Note PDF 349 KB
AN-839 RMS Phase Jitter Application Note PDF 149 KB
AN-838 Peak-to-Peak Jitter Calculations Application Note PDF 32 KB
AN-834 Hot-Swap Recommendations Application Note PDF 67 KB
AN-833 Differential Input Self Oscillation Prevention Application Note PDF 94 KB
AN-836 Differential Input to Accept Single-ended Levels Application Note PDF 37 KB
AN-832 Timing Budget and Accuracy Application Note PDF 48 KB
AN-830 Quartz Crystal Drive Level Application Note PDF 59 KB
AN-827 Application Relevance of Clock Jitter Application Note PDF 1.06 MB
AN-815 Understanding Jitter Units Application Note PDF 476 KB
AN-802 Crystal-Measuring Oscillator Negative Resistance Application Note PDF 52 KB
AN-805 Recommended Ferrite Beads Application Note PDF 38 KB
AN-801 Crystal-High Drive Level Application Note PDF 109 KB
AN-806 Power Supply Noise Rejection Application Note PDF 353 KB
PCNs & PDNs
PDN# CQ-14-05 MARKET DECLINED PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 192 KB
PCN# : A1401-02 Alternate Copper Wire Assembly Site Product Change Notice PDF 36 KB
PCN# : A1309-01 Changed of Traceability Mark Format Product Change Notice PDF 439 KB
PDN# : N-12-22R2 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 363 KB
PCN# : TB1303-01 Change of Carrier Tape for TQFP-32, TQFP-48 Product Change Notice PDF 472 KB
PDN# : N-12-22R1 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 209 KB

Software & Tools

Title Other Languages Type Format File Size Date
8432-111 IBIS Model Model - IBIS ZIP 50 KB