HMC508LP5TR

Overview

The HMC508LP5TR is a GaAs InGaP HBT MMIC Voltage Controlled Oscillator (VCO) manufactured by Analog Devices Inc. It operates within a frequency range of 3.65 to 4.1 GHz and provides a simultaneous half-frequency output from 7.3 to 8.2 GHz. The device integrates the resonator, negative resistance device, and varactor diode on a single chip, eliminating the need for external components. Powered by a +5V supply, it delivers a typical output power of +15 dBm at the fundamental frequency with a typical phase noise of -116 dBc/Hz at a 100 kHz offset. The component is housed in a compact 32-pin 5x5 mm QFN surface-mount package.

Feature Summary

• Integrates resonator, negative resistance device, and varactor diode for a complete single-chip solution
• Provides dual outputs including fundamental frequency and a simultaneous half-frequency signal
• Delivers high output power with excellent phase noise stability across temperature and process variations
• Requires no external matching or resonant components due to integrated design

Applications

• VSAT radio systems
• Point-to-point and point-to-multipoint radio links
• Test equipment and industrial control systems
• Military end-use applications

Procurement Notes

Verify that the specific ordering suffix matches the required tape and reel configuration for automated assembly processes. Confirm that the voltage tuning range aligns with the system's control circuitry capabilities. Ensure the thermal pad connection requirements are met during PCB layout to maintain optimal performance and reliability. Cross-reference the datasheet revision date to ensure compliance with current manufacturing specifications.

Selection Notes

Select this component when a compact VCO solution with integrated passive elements is required to minimize board space. Consider the device for designs needing both fundamental and harmonic frequencies simultaneously without additional divider circuitry. Evaluate the thermal management requirements associated with the QFN package and the specified operating temperature range. Assess the phase noise specifications against the system's sensitivity requirements for the target application band.

Part Context

This part belongs to the HMC508 series of monolithic microwave integrated circuits designed for high-performance RF applications. The series utilizes GaAs InGaP HBT technology to achieve low noise and high linearity. The LP5 designation indicates the specific leadless QFN package variant optimized for surface mount technology. This family is engineered to provide robust performance in demanding wireless communication environments.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.