HMC900LP5E

Overview

The HMC900LP5E is a dual baseband programmable low-pass filter with an integrated driver, designed for high-performance signal processing applications. It features a 6th-order response with a cutoff frequency range of 3.5 MHz to 50 MHz. The device operates on a single 5 V supply and offers selectable input gain settings of 0 dB or 10 dB. Key electrical specifications include a typical noise figure of 4.5 dB and an output IP3 of +28 dBm at 10 MHz. It is housed in a compact LP-5-EP package.

Feature Summary

• Dual-channel architecture providing independent control over two low-pass filter paths within a single component.
• Programmable bandwidth capability allowing dynamic adjustment of the cutoff frequency across a wide range.
• Integrated driver stage simplifies circuit design by eliminating the need for external buffering components.

Applications

• Software-defined radio (SDR) receiver front-ends
• Baseband filtering in wireless communication systems
• Test and measurement equipment requiring variable bandwidth filtering

Procurement Notes

Verify current availability status as this component may be subject to limited supply or end-of-life conditions. Confirm that the specific package type and pinout match your PCB footprint requirements. Ensure that the operating voltage and gain settings align with your system's power budget and signal chain specifications before finalizing procurement decisions.

Selection Notes

Select this component when dual-channel programmable filtering is required without external drivers. Consider the 50 MHz maximum bandwidth limit against your highest baseband frequency needs. Evaluate the 4.5 dB noise figure impact on overall system sensitivity. Compare the LP-5-EP package size constraints against available board space.

Part Context

This part belongs to the HMC900 series of active filters from Analog Devices. It is specifically engineered for baseband applications where adjustable bandwidth and dual-channel integration are critical. The inclusion of an internal driver distinguishes it from passive filter alternatives, offering improved isolation and drive capability for subsequent stages in the signal path.

Replacement Considerations

The ADRF6520-EVALZ is listed as a manufacturer-recommended alternative evaluation platform. Verify functional compatibility regarding bandwidth ranges and gain settings if substituting the core IC. Check for package pinout differences to ensure mechanical interchangeability without redesigning the PCB layout.

FAQ

What is the maximum cutoff frequency of the HMC900LP5E?

The maximum cutoff frequency is 50 MHz, with a minimum of 3.5 MHz.

Does the HMC900LP5E include an output driver?

Yes, the device features an integrated driver stage to simplify system design.

What are the available input gain settings?

The input gain can be set to either 0 dB or 10 dB.