HMC511LP5

Overview

The HMC511LP5 is a monolithic microwave integrated circuit (MMIC) voltage-controlled oscillator (VCO) manufactured by Analog Devices Inc. It operates within a frequency range of 9.05 GHz to 10.15 GHz and features an on-chip divide-by-two circuit providing a secondary output at Fo/2. The device utilizes a tuning voltage range of 2 VDC to 13 VDC with a typical tuning sensitivity of 15 MHz/V. It requires a supply voltage between 4.75 V and 5.25 V, drawing up to 300 mA. Key performance metrics include a phase noise of -115 dBc/Hz and second harmonic suppression of 15 dBc. The component is housed in a 32-lead QFN package and supports operation from -40°C to +85°C.

Feature Summary

• Integrates a high-performance VCO core with an on-chip divide-by-two circuit for simultaneous fundamental and half-frequency outputs.
• Provides stable oscillation across the 9.05 GHz to 10.15 GHz band with low phase noise characteristics.
• Operates with a single DC supply voltage and standard tuning voltage interface for simplified system integration.
• Constructed in a compact surface-mount QFN package suitable for automated assembly and dense PCB layouts.

Applications

• High-frequency radar systems requiring precise local oscillator signals.
• Point-to-point microwave communication links operating in Ku-band frequencies.
• Test and measurement equipment needing stable signal generation sources.
• Satellite communication terminals utilizing frequency synthesis architectures.

Procurement Notes

Verify the specific ordering suffix and packaging configuration when placing orders, as availability may vary between cut tape and reel formats. Confirm that the procurement channel is authorized to ensure component authenticity and traceability. Check current stock levels carefully, as this component may be subject to limited supply or allocation constraints. Ensure that handling procedures account for moisture sensitivity classification during storage and reflow processes.

Selection Notes

Select the HMC511LP5 when both fundamental and divided-down frequency outputs are required from a single active component. Consider its 300 mA current consumption against available power budgets in the target application. Evaluate the 15 MHz/V tuning sensitivity against the resolution requirements of the control loop. Compare the -115 dBc/Hz phase noise specification against system jitter tolerance limits to ensure adequate signal integrity.

Part Context

This part belongs to the HMC511 series of MMIC VCOs from Analog Devices. It shares architectural similarities with related models such as the HMC510 and HMC512, which offer different frequency ranges but similar functional blocks including on-chip dividers. The series is designed for applications demanding high spectral purity and compact form factors in microwave frequency bands.

Replacement Considerations

The HMC510LP5 offers a lower frequency range of 8.45–9.55 GHz with similar Fo/2 functionality. The HMC512LP5 covers 9.6–10.8 GHz with comparable output structures. Direct pin-compatible replacements should be verified against datasheet specifications for frequency overlap and electrical parameters before substitution.