The IDT9EX21501 provides 15 output clocks for PCIe Gen2 (100MHz) or QPI (133MHz) applications. The 9EX21501 has 4 selectable SMBus addresses, and dedicated CKPWRGD/PD# and VDDA pins for easy board design. A differential CPU clock from a CK410B+ main clock generator, such as the IDT932S421, drives the IDT9EX21501. In fanout mode, the 9EX21501 provides outputs up to 400MHz.

Features

  • Supports output clock frequencies up to 400 MHz
  • 4 Selectable SMBus addresses
  • SMBus address is independent of PLL operating mode
  • Dedicated CKPWRGD/PD# and VDDA pins ease board design

Product Options

Orderable Part ID Part Status Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Package Buy Sample
9EX21501AKILF Obsolete VFQFPN 64 I Yes Tray Package Info
Availability
9EX21501AKILFT Obsolete VFQFPN 64 I Yes Reel Package Info
Availability
9EX21501AKLF Obsolete VFQFPN 64 C Yes Tray Package Info
Availability
9EX21501AKLFT Obsolete VFQFPN 64 C Yes Reel Package Info
Availability

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
9EX21501A DATASHEET Datasheet PDF 234 KB
Application Notes & White Papers
AN-828 Termination - LVPECL Application Note PDF 322 KB
AN-844 Termination - AC Coupling Clock Receivers Application Note PDF 170 KB
AN-843 PCI Express Reference Clock Requirements Application Note PDF 1.90 MB
AN-842 Thermal Considerations in Package Design and Selection Application Note PDF 495 KB
AN-840 Jitter Specifications for Timing Signals Application Note PDF 442 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-805 Recommended Ferrite Beads Application Note PDF 121 KB
PCNs & PDNs
PDN# : CQ-17-04(R1) Product Discontinuance Notice Product Discontinuation Notice PDF 606 KB
PDN# : CQ-17-04 Product Discontinuance Notice Product Discontinuation Notice PDF 599 KB
PCN# : A1611-02 Add JCET China as Alternate Assembly and Change of Material Set at Alternate Assembly Location Product Change Notice PDF 583 KB
PCN# : TB1504-01R1 Qty per Reel Standardization for Selective Packages Product Change Notice PDF 95 KB
PCN# : TB1504-01 Qty per Reel Standardization for Selective Packages Product Change Notice PDF 50 KB
PCN# : A1311-03R1 Alternate Assembly Locations Product Change Notice PDF 43 KB
PCN# : A1311-03 Alternate Assembly Locations Product Change Notice PDF 140 KB
Other
PCI Express Timing Solutions Overview Overview PDF 275 KB
Timing Solutions Products Overview Overview PDF 4.11 MB
IDT Clock Generation Overview 日本語 Overview PDF 1.83 MB
IDT Clock Distribution Overview 日本語 Overview PDF 3.79 MB