Features
- 1.8V operation; reduced power consumption
- 8 - 0.7V low-power HCSL-compatible (LP-HCSL) DIF pairs w/Zo=100ohm
- 1 - 1.8V LVCMOS REF output w/Wake-On-LAN (WOL) support
- DIF cycle-to-cycle jitter <50ps
- DIF output-to-output skew <50ps
- DIF phase jitter is PCIe Gen1-2-3 compliant
- REF phase jitter is < 1.5ps RMS
- Outputs can optionally be supplied from any voltage between 1.05 and 1.8V; maximum power savings
- OE# pins; support DIF power management
- LP-HCSL differential clock outputs; reduced power and board space
- Programmable Slew rate for each output; allows tuning for various line lengths
- Programmable output amplitude; allows tuning for various application environments
- Selectable 0%, -0.25% or -0.5% spread on DIF outputs; reduces EMI
- External 25MHz crystal; supports tight ppm with 0 ppm synthesis error
- 3.3V tolerant SMBus interface works with legacy controllers
- Space saving 48-pin 6x6 mm VFQFPN; minimal board space
Description
The IDT6P41302 is an 8-output very low power clock generator for PCIe Gen1-2-3 applications with integrated output terminations providing Zo=100. The device has 8 output enables for clock management and supports 2 different spread spectrum levels in addition to spread off.
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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.