Overview
The HMC1044LP3ETR, produced by Analog Devices Inc., is a programmable bandwidth Low Pass Filter (LPF) designed for wideband transceiver harmonic filtering applications. This component is particularly suited for use in systems that employ quadrature modulators and/or demodulators. It is optimized to filter out Local Oscillator (LO) harmonics, thereby enhancing modulator sideband rejection and demodulator image rejection performance.
Key Specifications
| Parameter | Min. | Typ. | Max. | Units |
|---|---|---|---|---|
| Single-Ended Passband | 250 | 3060 | - | MHz |
| ƒcutoff (Tuning Range, 3 dB Loss) | 1025 | 3060 | - | MHz |
| Passband Flatness | - | 2.5 | - | dB |
| Passband Insertion Loss | 3 | - | 5 | dB |
| Return Loss | - | - | 10 | dB |
| Input/Output Impedance (Single-Ended) | - | - | 50 | Ω |
| Input IP3 (inband, Single-Ended) | - | 43 | - | dBm |
| Differential Passband | 250 | 3400 | - | MHz |
| ƒcutoff (Tuning Range, 3 dB Loss, Differential) | 970 | 3400 | - | MHz |
| Input/Output Impedance (Differential) | - | - | 100 | Ω |
| DC Supply Voltage | 3 | 3.3 | 3.5 | V |
| Supply Current | - | - | 1 | μA |
| Digital Input Low Level (VIL) | - | - | 0.4 | V |
| Digital Input High Level (VIH) | - | - | 1.5 | V |
Key Features
- Programmable bandwidth from 1 to 3 GHz, with 16 user-programmable bands.
- Compatible with narrowband and wideband applications, including PLLs with integrated VCOs, modulators, and demodulators.
- LO harmonic rejection of approximately 20 dB, improving modulator and demodulator sideband and image rejection performance.
- Single-ended or differential operation options.
- Compact 3x3 mm QFN leadless package, reducing footprint by up to 90% compared to discrete fixed bandwidth solutions.
- Low passband insertion loss and high return loss.
- High input IP3 (inband) for robust performance.
Applications
- Wideband transceiver harmonic filtering.
- Filtering LO harmonics to reduce modulator sideband rejection and demodulator image rejection.
- Amplifier harmonic filtering.
- RF filtering in various communication systems.
- Quadrature modulator and demodulator applications.
- Wideband multi-standard, multi-carrier designs.
Q & A
- What is the HMC1044LP3ETR used for?
The HMC1044LP3ETR is used for wideband transceiver harmonic filtering, particularly in applications involving quadrature modulators and demodulators.
- What is the frequency range of the HMC1044LP3ETR?
The HMC1044LP3ETR operates within a frequency range of 1 to 3 GHz.
- How many programmable bands does the HMC1044LP3ETR have?
The HMC1044LP3ETR has 16 user-programmable bands.
- What is the typical LO harmonic rejection of the HMC1044LP3ETR?
The HMC1044LP3ETR provides approximately 20 dB of LO harmonic rejection.
- What are the input/output impedance options for the HMC1044LP3ETR?
The HMC1044LP3ETR can operate with single-ended (50 Ω) or differential (100 Ω) input/output impedance.
- What is the supply voltage range for the HMC1044LP3ETR?
The supply voltage range for the HMC1044LP3ETR is from 3 to 3.5 volts.
- What is the typical supply current of the HMC1044LP3ETR?
The typical supply current of the HMC1044LP3ETR is 1 μA.
- What is the package type of the HMC1044LP3ETR?
The HMC1044LP3ETR is packaged in a compact 3x3 mm QFN leadless package.
- What are the typical applications of the HMC1044LP3ETR?
The HMC1044LP3ETR is typically used in wideband transceiver harmonic filtering, amplifier harmonic filtering, and RF filtering in various communication systems.
- How does the HMC1044LP3ETR improve modulator and demodulator performance?
The HMC1044LP3ETR improves modulator and demodulator performance by attenuating LO harmonics, thus reducing sideband and image rejection degradation.
