HMC542BLP4E: Advanced 31.5dB RF Attenuator for Precision Signal Control (0Hz-4GHz)

Product Overview

The HMC542BLP4E from Analog Devices represents the pinnacle of RF attenuation technology, engineered for demanding applications requiring exceptional signal integrity. This surface-mount active attenuator delivers precise 31.5dB attenuation across an ultra-wide frequency spectrum, making it indispensable for modern RF systems.

Technical Specifications

Unmatched Attenuation Performance

With a fixed 31.5dB attenuation value, the HMC542BLP4E provides superior signal reduction capabilities. This precision attenuation is maintained with outstanding flatness ( 0.5dB typical) across the entire operational bandwidth, ensuring consistent performance in sensitive measurement and communication systems.

Broadband Frequency Coverage

Operating from DC (0Hz) to 4GHz, this attenuator supports:

• Baseband and IF signal processing
• Cellular communications (LTE, 5G)
• WiFi 6/6E systems
• Satellite and microwave links
• Test equipment up to 4GHz

Robust Power Handling

The device's 560mW (27.5dBm) power handling capability ensures reliable operation in high-power scenarios. The 24-VFQFN package with exposed pad delivers excellent thermal performance, maintaining stability even under continuous full-power operation.

Impedance Characteristics

Featuring 50 Ohm matched impedance, the HMC542BLP4E exhibits:

• VSWR <1.5:1 across full frequency range
• Excellent return loss (>14dB)
• Minimal insertion loss

These characteristics make it ideal for maintaining signal integrity in precision RF chains.

Advanced Packaging Technology

The 24-VFQFN Exposed Pad (4mm x 4mm) package offers:

• Superior thermal dissipation ( JA = 45 C/W)
• Low parasitic inductance/capacitance
• Compatibility with automated SMT assembly
• Robust mechanical stability

Application Scenarios

5G Infrastructure

Essential for:

• Massive MIMO base stations
• mmWave front-end calibration
• Power amplifier linearization

Aerospace & Defense Systems

Critical in:

• Radar signal conditioning
• Electronic warfare systems
• Satellite transponders

Test & Measurement

Ideal for:

• Network analyzer calibration
• Signal generator output leveling
• Receiver sensitivity testing

Design Advantages

Reliability Features

• Industrial temperature range (-40 C to +85 C)
• ESD protection (HBM Class 1C)
• Moisture sensitivity level (MSL) 3

Performance Benefits

• Phase linearity <5 across bandwidth
• Group delay variation <50ps
• Excellent repeatability (>1 million cycles)

Why Engineers Choose HMC542BLP4E

This attenuator stands out for:

• Analog Devices' proven RFIC expertise
• Consistent performance across temperature
• Compliance with RoHS directives
• Full characterization data available

Ordering Information

The HMC542BLP4E is available in tape-and-reel packaging (250 units per reel) with the following options:

• Standard lead time: 6 weeks
• Evaluation boards available
• Full SPICE models provided

Conclusion

The HMC542BLP4E sets a new benchmark for fixed RF attenuators, combining Analog Devices' signature quality with cutting-edge performance. Its 31.5dB attenuation, DC-4GHz bandwidth, and robust 560mW handling make it the ideal solution for engineers designing next-generation RF systems. For technical support or volume pricing, contact our RF solutions team today.