Features
- PCIe Ge n1–7 compliant
- PCIe Gen7 Common Clock jitter < 41fs RMS
- 276fs RMS typical phase jitter at 156.25MHz (12kHz–20MHz)
- 4 programmable o utput pairs plus 2 LVCMOS REF outputs
- 1 integer, fractional or spread-spectrum output frequency per configuration
- 1MHz–325MHz output frequency (LVDS or LP-HCSL)
- 1MHz–200MHz output frequency (LVCMOS)
- 1.8V to 3.3V core VDD
- Individual 1.8V, 2.5V or 3.3V VDDO for each programmable output pair
- Supports HCS L, LVDS and LVCMOS I/O standards
- Supports AC-coupled LVPECL and CML logic – see AN-891
- 4 × 4 mm 24-VFQFPN and 24-LGA packages with 50MHz integrated crystal option
- Supported by Timing Commander™ software
Description
The 9FGV1002 is a member of Renesas' PhiClock™ programmable clock generator family. The 9FGV1002 provides four spread-spectrum copies of a single output frequency and two copies of the crystal reference input. Two select pins allow for hardware selection of the desired configuration, or two I²C bits all easy software selection of the desired configuration. The user may configure any one of the four OTP configurations as the default when operating in I²C mode. Four unique I²C addresses are available, allowing easy I²C access to multiple components.
Parameters
| Attributes | Value |
|---|---|
| Temp. Range (°C) | -40 to 85°C, -40 to 105°C |
Filters
Software & Tools
Sample Code
Simulation Models
Ron Wade, chief PCIe system architect explains the fundamental difference in reference clock jitter budgets between the first three generations of the specification and those of Gen4 and Gen5 which raise new challenges for designers.
Related Resources
This whiteboard video presents a brief overview comparing the evolution of PCI Express data rates through five generations versus that of the common clock jitter specifications.
Renesas's chief PCIe system architect explains how to derive separate reference clock jitter limits from the PCI Express Gen4 and Gen5 specifications.
A detailed overview of IDT's full-featured PCI Express (PCIe) clock and timing solutions. The presentation addresses PCIe Gen 1, Gen 2, Gen 3, and Gen 4 architectures and how IDT's industry-leading solutions provide all the functions, features, and performance required by the application.
Presented by Ron Wade, System Architect at IDT. For more information visit the PCIe clocks page.
This is the first video in our PCIe series. In this video, we define PCIe architectures, focusing on common and separate clock architectures. Watch the rest of the video series below where Ron will cover the impact of different timing architectures.
In this episode, Ron Wade from IDT (acquired by Renesas) explains PCIe common clocking and its impact on timing solutions. Learn about using a single clock source, fan-out buffers, and the considerations for spread spectrum and non-spread spectrum clocking in PCIe systems.
In this video, we explore PCIe with separate reference clocks and the effects of clock selection. Learn how separate reference clocks work and their impact on system performance and stability.
This video provides a high-level overview of Separate Reference Clock with Independent Spread (SRIS) architectures for PCI Express systems, additional performance requirements that this clocking architecture imposes on the reference clocks, and some system implications encountered trying to implement the architecture.
IDT (acquired by Renesas) engineer provides a brief tutorial describing the main differences between standard HCSL and low-power HCSL (LP-HCSL).
Presented by Ron Wade, PCI Express timing expert.
Related Resources
An overview of IDT's full-featured PCI Express (PCIe) clock generators addressing PCIe Gen 1, Gen 2, Gen 3, and Gen 4.
Presented by Ron Wade, System Architect at IDT.
An overview of PCI Express applications and how IDT's industry-leading portfolio of PCIe clock products addresses the requirements. The video briefly discusses PCIe riser cards, embedded SOC, and PCIe storage (NVME) examples.
Presented by Ron Wade, System Architect at IDT.
A brief comparison of PCI Express (PCIe) Gen3-7 common clock jitter filters vs. a typical 12k to 20MHz plot. Presented by Ron Wade, System Architect at Renesas.
For more information, visit the PCI Express Clocks page.
News & Blog Posts
Blog Post
Feb 7, 2019
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