9SQL4958CNDGI

Application Specific Clock/Timing Overview

The Renesas 9SQL4958CNDGI is a single-circuit PCI Express clock generator designed for PCIe applications. It operates within a supply voltage range of 3.135V to 3.465V and supports a maximum frequency of 100MHz. The device accepts clock or crystal inputs and provides HCSL and LVCMOS outputs in an 8-output configuration (1:8 ratio). It features a PLL, with differential input/output capability, and is housed in a 48-VFQFN exposed pad package. The component functions reliably across an operating temperature range of -40°C to 85°C.

Application Specific Clock/Timing Feature Summary

• PCIe Clock Generator: Designed specifically for PCI Express timing solutions.
• Flexible I/O: Supports HCSL and LVCMOS output signaling types.
• Integrated PLL: Includes a Phase-Locked Loop for stable frequency generation.
• Compact Packaging: Delivered in a 48-VFQFPN (6x6) surface-mount package.

Application Specific Clock/Timing Applications

• PCI Express system clock generation
• Data communication equipment timing
• Storage subsystem clocking

Application Specific Clock/Timing Procurement Notes

Verify the specific ordering suffix against official documentation to confirm pinout and electrical characteristics. Confirm RoHS compliance status and moisture sensitivity level prior to procurement. Check for active production status or obsolescence notices from the manufacturer to ensure long-term availability for design-in projects.

Application Specific Clock/Timing Selection Notes

Select this component when a dedicated PCIe clock generator with HCSL/LVCMOS outputs is required. Ensure the design accommodates the 3.135V to 3.465V supply voltage range. Verify that the 48-VFQFN footprint matches the PCB layout constraints and thermal requirements for the target operating temperature range.

Application Specific Clock/Timing Part Context

This part belongs to the Renesas application-specific clock and timing portfolio, focusing on interface standards like PCI Express. It serves as a critical timing source for high-speed serial links, replacing discrete oscillator solutions to save board space and improve signal integrity in complex digital systems.

Application Specific Clock/Timing Replacement Considerations

Consult official substitution guides for direct replacements. Verify compatibility regarding package dimensions, pin assignments, and electrical parameters such as supply voltage and output swing before integrating alternative components into existing designs.