LMX2512LQ0967

Overview

The LMX2512LQ0967 is an RF IC frequency synthesizer manufactured by National Semiconductor. It operates within a frequency range of 954.42MHz to 979.35MHz, designed for CDMA and PCS applications. The device integrates both a Phase-Locked Loop (PLL) and a Voltage-Controlled Oscillator (VCO). It is housed in a 28-WQFN package with dimensions of 5x5 mm and supports surface mount mounting types.

Feature Summary

• Integrates PLL and VCO functions
• Designed for CDMA and PCS applications
• Surface mount packaging

Applications

• CDMA systems
• PCS systems

Procurement Notes

Verify the manufacturer designation as National Semiconductor or Texas Instruments, as the brand transition occurred. Confirm the specific suffix LQ0967 matches the required frequency range of 954.42MHz to 979.35MHz. Ensure the package type is 28-WQFN (5x5) and check RoHS compliance status if required for your assembly process.

Selection Notes

Select this component when a dedicated frequency synthesizer for CDMA or PCS bands is needed. The integrated VCO simplifies design by reducing external component count. Consider the 28-WQFN package size for space-constrained PCB layouts. Verify that the specific frequency range meets the system requirements.

Part Context

This part belongs to the LMX25xx series of PLLatinum frequency synthesizers from National Semiconductor. These devices are known for high-performance analog capabilities in RF applications. The LMX2512 variant specifically targets cellular communication standards requiring precise frequency synthesis.

Replacement Considerations

Check for LMX2512 variants with different suffixes for alternative frequency ranges or packages. Verify compatibility with Texas Instruments equivalents after the National Semiconductor acquisition.