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. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Package Buy Sample
8432CY-111LF Obsolete TQFP 32 C Yes Tray Package Info
Availability
8432CY-111LFT Obsolete TQFP 32 C Yes Reel Package Info
Availability

Documentation & Downloads

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 322 KB
AN-831 The Crystal Load curve Application Note PDF 395 KB
AN-844 Termination - AC Coupling Clock Receivers Application Note PDF 170 KB
AN-842 Thermal Considerations in Package Design and Selection Application Note PDF 495 KB
AN-803 Crystal Timing Budget and Accuracy for IDT Timing Clock Products Application Note PDF 128 KB
AN-840 Jitter Specifications for Timing Signals Application Note PDF 442 KB
AN-838 Peak-to-Peak Jitter Calculations Application Note PDF 115 KB
AN-839 RMS Phase Jitter Application Note PDF 233 KB
AN-834 Hot-Swap Recommendations Application Note PDF 153 KB
AN-832 Timing Budget and Accuracy Application Note PDF 131 KB
AN-833 Differential Input Self Oscillation Prevention Application Note PDF 180 KB
AN-836 Differential Input to Accept Single-ended Levels Application Note PDF 120 KB
AN-835 Differential Input with VCMR being VIH Referenced Application Note PDF 160 KB
AN-830 Quartz Crystal Drive Level Application Note PDF 143 KB
AN-827 Application Relevance of Clock Jitter Application Note PDF 1.15 MB
AN-815 Understanding Jitter Units Application Note PDF 565 KB
AN-802 Crystal-Measuring Oscillator Negative Resistance Application Note PDF 136 KB
AN-801 Crystal-High Drive Level Application Note PDF 202 KB
AN-806 Power Supply Noise Rejection Application Note PDF 438 KB
AN-805 Recommended Ferrite Beads Application Note PDF 121 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
Downloads
8432-111 IBIS Model Model - IBIS ZIP 50 KB