LMK00334RTVRQ1

Overview

The LMK00334RTVRQ1 is a four-output PCIe clock buffer and level translator designed for high-frequency, low-jitter clock distribution. It accepts input clocks from two general-purpose inputs or a crystal input, routing the selected signal to two groups of HCSL outputs and one LVCMOS output. The device operates on a 3.3V core supply with three independent 3.3V/2.5V output supplies. It supports frequencies up to 400MHz and features an LVCMOS output with a synchronous enable input for short pulse-free operation. Packaged in a 32-WQFN (5x5) format, it is AEC-Q100 qualified for automotive applications.

Feature Summary

• Four-output architecture providing two groups of HCSL outputs and one LVCMOS output
• Input selection between two general-purpose inputs or a crystal input
• LVCMOS output includes a synchronous enable input for pulse-free control
• AEC-Q100 qualified for automotive grade reliability

Applications

• PCI Express (PCIe) Gen1/Gen2/Gen3/Gen4 clock distribution
• SATA interface timing
• CPU clock buffering

Procurement Notes

Verify the specific suffix RTVRQ1 against the manufacturer's current datasheet to confirm package type and temperature range. Ensure the ordering part number matches the required automotive qualification status. Cross-reference the DigiKey part number 296-49098-2-ND for accurate packaging details such as tape and reel specifications.

Selection Notes

Select this component when a single-input, multi-output clock distribution solution is required for PCIe or SATA systems. The device supports both HCSL and LVCMOS output levels, making it suitable for mixed-voltage environments. Verify that the input source voltage levels are compatible with the specified CML, HCSL, HSTL, LVDS, LVPECL, or SSTL input options.

Part Context

This part belongs to the LMK00334 family of clock buffers. The 'Q1' suffix indicates automotive qualification under AEC-Q100 standards. The base model LMK00334 serves as the commercial counterpart, while the LMK00338 variant offers four HCSL outputs instead of the mixed HCSL/LVCMOS configuration found in the LMK00334 series.

Replacement Considerations

The LMK00334RTVR is the commercial version of this device. For automotive applications requiring similar functionality, verify compatibility with other LMK003xx series parts. No direct cross-manufacturer substitutes are listed in the provided documentation.