HMC736LP4ETR

Overview

The HMC736LP4ETR is a GaAs InGaP HBT MMIC Voltage Controlled Oscillator (VCO) from Analog Devices, designed for the 14.5 GHz to 15.0 GHz frequency range. It features an integrated resonator and negative resistance circuitry within a compact QFN-24 package measuring 4.1 mm x 4.1 mm x 1 mm. The device operates on a supply voltage between 4.75 V and 5.25 V, drawing a typical current of 180 mA. It supports a tuning voltage range of 1 VDC to 13 VDC with a sensitivity of 24 MHz/V. Key performance metrics include a phase noise of -105 dBc/Hz and operation across a temperature range of -40°C to +85°C.

Feature Summary

• Integrates resonator and negative resistance circuitry in a single MMIC die
• Utilizes GaAs InGaP Heterojunction Bipolar Transistor technology
• Provides half-frequency output capability alongside fundamental RF output

Applications

• Point-to-point microwave radio systems
• Satellite communication uplink and downlink modules
• Test and measurement instrumentation requiring stable high-frequency sources

Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or certified partners. Confirm that the specific suffix 'ETR' matches the required tape-and-reel packaging configuration for automated assembly processes. Ensure that the ordering documentation explicitly references the full part number to avoid confusion with non-tray variants or different package styles. Cross-reference the datasheet revision date against your design requirements to ensure compliance with current manufacturing specifications.

Selection Notes

Select this component when a stable, low-phase-noise source is required in the 14.5–15.0 GHz band. Consider the QFN-24 footprint for space-constrained PCB layouts. Evaluate thermal management capabilities given the 180 mA operating current and 4.75–5.25 V supply range. Verify that the external tuning voltage controller can support the 1–13 VDC range required for full frequency coverage.

Part Context

This part belongs to the HMC736 series of MMIC VCOs, which are engineered for high-performance RF applications. The series leverages advanced GaAs HBT processes to deliver consistent phase noise and frequency stability. The LP4E designation indicates the lead-free, RoHS-compliant variant housed in the standard QFN package, ensuring compatibility with modern environmental regulations and surface-mount assembly techniques.

Replacement Considerations

Public confirmed substitute part numbers: HMC736LP4E.