The 9ZML1253E is a second generation enhanced performance DB1200ZL derivative. The part is a pin-compatible
upgrade to the 9ZML1232B, while offering a much improved phase jitter performance. A fixed external feedback maintains low drift for critical QPI/UPI applications, while each input channel has software adjustable input-to-output delay to ease transport delay management for today's more complex server topologies. The 9ZML1253E has an SMBus Write Lockout pin for increased device and system security.

Features

  • SMBus write lock feature; increases system security
  • 2 software-configurable input-to-output delay lines; manage transport delay for complex topologies
  • LP-HCSL outputs with 85Ω Zout; eliminate 48 resistors, save 82mm² of area
  • 12 OE# pins; hardware control of each output
  • 3 selectable SMBus addresses; multiple devices can share same SMBus segment
  • Selectable PLL bandwidths; minimizes jitter peaking in cascaded PLL topologies
  • Hardware/SMBus control of PLL bandwidth and bypass; change mode without power cycle
  • Spread spectrum compatible; tracks spreading input clock for EMI reduction
  • 100MHz PLL Mode; UPI support
  • 10 x 10 mm 72-VFQFPN package; small board footprint

Product Options

Orderable Part ID Part Status Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
Active 72 I Yes Tray
Availability
Active 72 I Yes Reel
Availability

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
9ZML1233E_1253E Datasheet Datasheet PDF 466 KB
Application Notes & White Papers
AN-1001 Combining PhiClock and 9ZXL1951D for PCIe Gen4/5 Application Note PDF 244 KB
AN-975 Cascading PLLs Application Note PDF 255 KB
AN-828 Termination - LVPECL Application Note PDF 322 KB
AN-891 Driving LVPECL, LVDS, CML, and SSTL Logic with IDT Universal Low-Power HCSL Outputs Application Note PDF 480 KB
AN-879 Low-Power HCSL vs Traditional HCSL Application Note PDF 235 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-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-808 PCI Express/HCSL Termination Application Note PDF 137 KB
AN-805 Recommended Ferrite Beads Application Note PDF 121 KB
PCNs & PDNs
PCN# : TP1910-03-R1 Update the Cut-off Date Code Product Change Notice PDF 163 KB
PCN# : TP1910-03 Top Metal Change Product Change Notice PDF 158 KB
PCN# : A1904-01 Add Greatek, Taiwan as an Alternate Assembly Facility Product Change Notice PDF 983 KB
Downloads
9ZML1253E IBIS Model Model - IBIS ZIP 21 KB
Other
Clock Distribution Overview 日本語 Overview PDF 217 KB
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

Boards & Kits

Part Number Title Type Company
EVK9ZXL1951D Evaluation Kit for 19-Output DB1900Z for PCIe Gen1-4 and QPI/UPI