The 9FGL6251 is an intelligent buffer/clock generator tailored for single and dual-ported nVME SSDs. It supports Common (CC) and Independent Reference (IR) clocking architectures and is ideal for U.2 and M.2 form factors. The device is also useful in PCIe master/slave and clock multiplexing applications, with an internal clock generator as a third input channel.
 
For information regarding evaluation boards and material, please contact your local IDT sales representative.
 

Features

  • Automatically detects presence or absence of input clocks and switches clock modes
  • One open-drain CC_IR output indicates PCIe clock mode
  • Integrated crystal option available (Q option)
  • Two 100MHz Low-power HCSL (LP-HCSL) outputs; 85Ω output impedance
  • Integrated terminations on DIF outputs save 8 resistors
  • 201, 301 configurations for SRnS (IR) or CC architectures default to 0% SSC
  • 202, 302 configurations for SRIS (IR) or CC architectures default to -0.5% SSC
  • SMBus-selectable -0.25% SSC
  • Choice of 25MHz or 33 1/3MHz reference clock
  • REF clock output saves external XO
  • 2.5V or 3.3V operating voltage (VDDREF is 1.8V)
  • 4 × 4 mm 28-VQFP-N package with external crystal
  • 4 × 4 mm 28-LGA package with optional internal crystal
  • Easy AC-coupling to other logic families, see IDT application note AN-891
  • For devices with 100Ω output impedance, see 9FGL6241

Product Options

下单器件 ID Part Status Pkg. Code Pkg. Type Lead Count (#) 描述 Output Impedance Temp. Grade Carrier Type Buy Sample
9FGL6251AP201NDGI Active NDG28 VFQFPN 28 25MHz external XTAL, SSC off (SRNS) 85 I Tray
Availability
9FGL6251AP201NDGI8 Active NDG28 VFQFPN 28 25MHz external XTAL, SSC off (SRNS) 85 I Reel
Availability
9FGL6251AP202NDGI Active NDG28 VFQFPN 28 25MHz external XTAL, SSC on (SRIS) 85 I Tray
Availability
9FGL6251AP202NDGI8 Active NDG28 VFQFPN 28 25MHz external XTAL, SSC on (SRIS) 85 I Reel
Availability
9FGL6251AP301NDGI Active NDG28 VFQFPN 28 33.33MHz external XTAL, SSC off (SRNS) 85 I Tray
Availability
9FGL6251AP301NDGI8 Active NDG28 VFQFPN 28 33.33MHz external XTAL, SSC off (SRNS) 85 I Reel
Availability
9FGL6251AP302NDGI Active NDG28 VFQFPN 28 33.33MHz external XTAL, SSC on (SRIS) 85 I Tray
Availability
9FGL6251AP302NDGI8 Active NDG28 VFQFPN 28 33.33MHz external XTAL, SSC on (SRIS) 85 I Reel
Availability
9FGL6251AQ201LTGI Active LTG28 LGA 28 25MHz internal XTAL, SSC off (SRNS) 85 I Tray
Availability
9FGL6251AQ201LTGI8 Active LTG28 LGA 28 25MHz internal XTAL, SSC off (SRNS) 85 I Reel
Availability
9FGL6251AQ202LTGI Active LTG28 LGA 28 25MHz internal XTAL, SSC on (SRIS) 85 I Tray
Availability
9FGL6251AQ202LTGI8 Active LTG28 LGA 28 25MHz internal XTAL, SSC on (SRIS) 85 I Reel
Availability
9FGL6251AQ301LTGI Active LTG28 LGA 28 33.33MHz internal XTAL, SSC off (SRNS) 85 I Tray
Availability
9FGL6251AQ301LTGI8 Active LTG28 LGA 28 33.33MHz internal XTAL, SSC off (SRNS) 85 I Reel
Availability
9FGL6251AQ302LTGI Active LTG28 LGA 28 33.33MHz internal XTAL, SSC on (SRIS) 85 I Tray
Availability
9FGL6251AQ302LTGI8 Active LTG28 LGA 28 33.33MHz internal XTAL, SSC on (SRIS) 85 I Reel
Availability

技术资料

文档标题 他の言語 文档类型 文档格式 文件大小
数据手册与勘误表
9FGL6241_6251 Datasheet Datasheet PDF 436 KB
使用指南与说明
Timing Products for NXP (Freescale) i.MX ( 简体中文) English Guide PDF 321 KB
9FGx08 PCIe Clock Generator Evaluation Boards User Guide Manual - Eval Board PDF 748 KB
应用指南 &白皮书
AN-975 Cascading PLLs Application Note PDF 128 KB
AN-891 Driving LVPECL, LVDS, CML, and SSTL Logic with IDT's "Universal" Low-Power HCSL Outputs Application Note PDF 354 KB
AN-879 Low-Power HCSL vs Traditional HCSL Application Note PDF 150 KB
AN-843 PCI Express Reference Clock Requirements Application Note PDF 1.81 MB
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-840 Jitter Specifications for Timing Signals Application Note PDF 349 KB
AN-839 RMS Phase Jitter Application Note PDF 149 KB
AN-836 Differential Input to Accept Single-ended Levels Application Note PDF 37 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
PCN / PDN
PCN# : MM1610-01 Improve performance to meet the new PCIe Product Change Notice PDF 23 KB
其它
Timing Solutions Products Overview Overview PDF 4.11 MB
PCI Express® Timing Solutions Overview Overview PDF 301 KB
IDT Clock Generation Overview 日本語 Overview PDF 1.83 MB
IDT Clock Distribution Overview 日本語 Overview PDF 3.79 MB

软件与工具

文档标题 他の言語 文档类型 文档格式 文件大小
Software for PCIe Evaluation Kits Software ZIP 440 KB