Overview
The HMC951LP4ETR is a GaAs MMIC (Monolithic Microwave Integrated Circuit) I/Q downconverter produced by Analog Devices Inc. This component is designed for high-frequency applications, specifically operating within the 5.6 GHz to 8.6 GHz frequency range. It is packaged in a 24-lead, 4x4 mm leadless SMT (Surface Mount Technology) package, making it compact and suitable for surface mount manufacturing techniques. Despite being marked as obsolete, it remains relevant for various legacy and specific applications.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Frequency Range, RF | 5.6 - 8.6 | GHz |
| Frequency Range, LO | 3 - 12.1 | GHz |
| Frequency Range, IF | DC - 3.5 | GHz |
| Conversion Gain | 13 | dB |
| Noise Figure | 2 | dB |
| Image Rejection | 25 | dBc |
| LO to RF Isolation | 48 | dB |
| LO to IF Isolation | 30 | dB |
| Input IP3 | 3 | dBm |
| Supply Voltage | 5 | V |
| Supply Current | 55 | mA |
| Package Type | 24-VFQFN Exposed Pad | |
| Lead Free Status / RoHS Status | Lead free / RoHS Compliant |
Key Features
- Compact GaAs MMIC I/Q downconverter in a leadless SMT package.
- Small signal conversion gain of 13 dB and a noise figure of 2 dB.
- Image reject mixer with 25 dB of image rejection across the frequency band.
- Utilizes an LNA followed by an image reject mixer driven by an LO buffer amplifier.
- Eliminates the need for a filter following the LNA and removes thermal noise at the image frequency.
- Provides I and Q mixer outputs, requiring an external 90° hybrid to select the required sideband.
- Compatible with surface mount manufacturing techniques.
Applications
- Point-to-Point and Point-to-Multi-Point Radio.
- Military Radar, EW & ELINT (Electronic Warfare and Electronic Intelligence).
- Satellite Communications.
Q & A
- What is the frequency range of the HMC951LP4ETR? The HMC951LP4ETR operates within the 5.6 GHz to 8.6 GHz frequency range for RF signals.
- What is the conversion gain of the HMC951LP4ETR? The conversion gain is typically 13 dB.
- What is the noise figure of the HMC951LP4ETR? The noise figure is typically 2 dB.
- What type of package does the HMC951LP4ETR use? It is packaged in a 24-lead, 4x4 mm leadless SMT package.
- Is the HMC951LP4ETR RoHS compliant? Yes, the HMC951LP4ETR is lead free and RoHS compliant.
- What are the typical applications of the HMC951LP4ETR? Typical applications include Point-to-Point and Point-to-Multi-Point Radio, Military Radar, EW & ELINT, and Satellite Communications.
- What is the supply voltage for the HMC951LP4ETR? The supply voltage is 5 V.
- What is the supply current for the HMC951LP4ETR? The total supply current is typically 55 mA.
- Does the HMC951LP4ETR require any external components for operation? Yes, it requires an external 90° hybrid to select the required sideband.
- Is the HMC951LP4ETR still in production? No, the HMC951LP4ETR is marked as obsolete and is no longer manufactured.
