LMX2532LQ1065

Overview

The LMX2532LQ1065 is an active PLLatinum frequency synthesizer integrating a phase-locked loop and voltage-controlled oscillator. It generates RF signals at 1065MHz for CDMA and PCS applications. The device utilizes a 28-FQFN exposed pad package. Configuration includes specific settings such as the SPUR_CRL bit set to 1 in GPS mode with a 19.68 MHz reference. The RF N counter comprises four components.

Feature Summary

• Integrates a phase-locked loop and voltage-controlled oscillator within a single component
• Designed for generating precise RF signals suitable for CDMA and PCS systems
• Supports specific operational modes including GPS configuration with defined reference frequencies

Applications

• CDMA wireless communication systems
• PCS wireless communication systems
• GPS receiver front-end modules

Procurement Notes

Verify the manufacturer designation, as National Semiconductor assets are managed by Texas Instruments. Confirm the part status remains active and matches the 28-FQFN package type. Ensure the datasheet aligns with the specific LQ1065 suffix requirements for the intended 1065MHz output frequency and application constraints.

Selection Notes

Select this component when a combined PLL and VCO solution is required for CDMA or PCS bands. The integrated design simplifies circuit layout compared to discrete solutions. Consider the 28-FQFN package for space-constrained designs. Verify compatibility with the 19.68 MHz reference oscillator if GPS mode functionality is necessary for the system architecture.

Part Context

This part belongs to the PLLatinum series of frequency synthesizers. It represents a specialized variant optimized for specific frequency outputs and RF types. The integration of the VCO and PLL reduces external component count. The series is known for low phase noise performance in mobile communication applications.

Replacement Considerations

Consult Texas Instruments documentation for direct substitutes within the LMX2531 series. Verify electrical parameters and pinout compatibility before substitution. Generic replacements may not support the specific 1065MHz output or GPS mode configurations.