LMX2531LQ1500E/NOPB

Clock Generators, PLLs, Frequency Synthesizers Overview

The LMX2531LQ1500E/NOPB is a high-performance frequency synthesizer system from Texas Instruments, designed for wireless and RF communication applications. It operates within an output frequency range of 553 MHz to 3.132 GHz and requires a supply voltage between 2.8 V and 3.2 V. The device features an integrated VCO and consumes approximately 32 mA of operating current. It is housed in a 36-pin WQFN package with exposed pad and supports operation across a temperature range of -40°C to +85°C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Integrated Voltage Controlled Oscillator (VCO) reduces external component count
• High-performance phase-locked loop architecture for low noise synthesis
• Supports AEC-Q100 qualification standards for automotive reliability

Clock Generators, PLLs, Frequency Synthesizers Applications

• Wireless communication systems
• RF front-end modules
• Test and measurement equipment

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific suffix 'LQ1500' against official datasheets to confirm the exact internal divider configuration or band selection intended by the manufacturer. Ensure compatibility with standard SPI interfaces used for register programming. Confirm moisture sensitivity levels and reflow soldering profiles prior to assembly to prevent package damage during manufacturing processes.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when a wide tuning range up to 3.132 GHz is required with minimal external passive components. The integrated VCO simplifies PCB layout compared to discrete solutions. Consider the 36-WQFN package size for space-constrained designs. Verify that the target application falls within the specified -40°C to +85°C operating temperature range for reliable performance.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the LMX2531 family of high-performance frequency synthesizers. Variants such as LQ2820, LQ1146, and LQ3010 share similar core architectures but differ in specific internal configurations or factory settings. The LMX2531 series is widely used in modern RF transceivers requiring precise frequency generation and low phase noise characteristics.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct substitutes include other LMX2531 variants like LMX2531LQ2820E/NOPB or LMX2531LQ1146E/NOPB if the specific internal divider ratios match the design requirements. Cross-reference pinouts and electrical specifications carefully before substitution.