HMC1044

NOT RECOMMENDED FOR NEW DESIGNS

Programmable Harmonic Low Pass Filter, 1 - 3 GHz 3 dB Bandwidth

Analog Devices HMC1044 Product Info

10 February 2026 7

Features

Programmable Bandwidth: 1 to 3 GHz
Compatible with Narrowband & Wideband:
PLLs with Integrated VCOs
Modulators
Demodulators
Improves Modulator/Demodulator Sideband/Image Rejection

LO Harmonic Rejection: ~20 dB
Performance: 20 dB Typical
Single-Ended or Differential Options
Footprint up to 90% Smaller than
Current Discrete Fixed
Bandwidth Solutions
16 Lead 3x3 mm SMT Package

Part details & applications

The HMC1044LP3E is a programmable bandwidth LPF (Low Pass Filter) targeted at all applications that use quadrature modulators and/or demodulators. The HMC1044LP3E filters out LO harmonics and ensures little or no LO contribution to modulator sideband rejection or demodulator image rejection performance.

Although targeted at LO filtering applications, the HMC1044LP3E can be used to filter all RF harmonics such as the ones generated by amplifiers.

The HMC1044LP3E offers a choice of 16 programmable bands, optimized for high and low cellular bands ranging from 1 to 3 GHz, making the a truly wideband part compatible with wideband PLLs with Integrated VCOs and wideband quadrature modulators and demodulators. It enables wideband multi-standard, multi-carrier designs that are field configurable on-the-fly for each individual application.

The HMC1044LP3E is packaged in a compact 3x3 mm QFN leadless package.

APPLICATIONS

Filtering LO Harmonics to Reduce Modulator Sideband Rejection & Demodulator Image Rejection
Amplifier Harmonic Filtering
RF Filtering

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