NOTICE - The following device(s) are recommended alternatives:
The MPC9893 is a 2.5 V and 3.3 V compatible, PLL based intelligent dynamic clock switch and generator specifically designed for redundant clock distribution systems. The device receives two LVCMOS clock signals and generates 12 phase aligned output clocks. The MPC9893 is able to detect a failing reference clock signal and to dynamically switch to a redundant clock signal. The switch from the failing clock to the redundant clock occurs without interruption of the output clock signal (output clock slews to alignment). The phase bump typically caused by a clock failure is eliminated. The device offers 12 low skew clock outputs organized into two output banks, each configurable to support the different clock frequencies. The extended temperature range of the MPC9893 supports telecommunication and networking requirements. The device employs a fully differential PLL design to minimize jitter.


  • 12-output LVCMOS PLL clock generator
  • 2.5 V and 3.3 V compatible
  • IDCS - on-chip intelligent dynamic clock switch
  • Automatically detects clock failure
  • Smooth output phase transition during clock failover switch
  • 7.5 – 200 MHz output frequency range
  • LVCMOS compatible inputs and outputs
  • External feedback enables zero-delay configurations
  • Supports networking, telecommunications and computer applications
  • Output enable/disable and static test mode (PLL bypass)
  • Low skew characteristics: maximum 50 ps output-to-output (within bank)
  • 48-lead LQFP package
  • 48-lead Pb-free package available
  • Ambient operating temperature range of -40 to 85°C

Product Options

Orderable Part ID Part Status Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
Obsolete 48 C Yes Tray
Obsolete 48 C Yes Reel

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
MPC9893 Datasheet Datasheet PDF 342 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-845 Termination - LVCMOS Application Note PDF 146 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-832 Timing Budget and Accuracy Application Note PDF 131 KB
AN-834 Hot-Swap Recommendations Application Note PDF 153 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
PCN# : A1602-01(R1) Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB
PCN# : A1602-01 Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB
PCN# : TB1303-01 Change of Carrier Tape for TQFP-32, TQFP-48 Product Change Notice PDF 472 KB
PDN# : N-12-48 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 93 KB
MPC9893 IBIS Model Model - IBIS ZIP 17 KB
Clock Distribution Overview 日本語 Overview PDF 217 KB
Timing Solutions Products Overview Overview PDF 4.11 MB
IDT Products for Radio Applications 日本語 Product Brief PDF 2.34 MB
IDT Clock Generation Overview 日本語 Overview PDF 1.83 MB
NEN-06-02 MPC9893 Device Errata Device Errata PDF 14 KB