LMK00334RTVTQ1

Overview

The LMK00334RTVTQ1 is an automotive-grade clock buffer and level translator from Texas Instruments, designed for high-frequency, low-jitter clock distribution. It operates with a 3.3V core supply and three independent output supplies (3.3V/2.5V). The device accepts input clocks from two general-purpose inputs or a crystal input, supporting CML, HCSL, HSTL, LVDS, LVPECL, SSTL, and crystal sources. It distributes the selected clock to four outputs: two groups of HCSL outputs and one LVCMOS output with synchronous enable. The maximum operating frequency is 400MHz, housed in a 32-WQFN (5x5) package.

Feature Summary

• Automotive AEC-Q100 qualified for -40°C to 105°C operation
• Supports multiple input formats including CML, HCSL, LVDS, and crystal
• Provides HCSL and LVCMOS output levels with synchronous enable control
• Operates on 3.3V core and independent 3.3V/2.5V output supplies

Applications

• PCI Express (PCIe) clock distribution
• SATA interface timing
• CPU clock buffering

Procurement Notes

Verify the specific suffix RTVTQ1 confirms the tape-and-reel packaging and automotive grade status. Ensure the design supports the required 3.3V core and separate output supply voltages. Confirm the 32-WQFN footprint matches the PCB layout guidelines provided in the official datasheet.

Selection Notes

Select this component when low-jitter clock distribution is required for PCIe or SATA systems in automotive environments. It replaces fixed-output buffers while adding timing margin. Ensure input signal compatibility with supported logic families like HCSL or LVDS before integration.

Part Context

This part belongs to the LMK00334 family of clock buffers. The 'Q1' suffix denotes automotive qualification under AEC-Q100 standards. The 'R' indicates reel packaging, and 'T' specifies the tape-and-reel configuration for automated assembly.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pin-to-pin compatibility and electrical specifications if considering alternative vendors.