Overview
The HMC908LC5TR-R5, produced by Analog Devices Inc., is a compact GaAs (Gallium Arsenide) Monolithic Microwave Integrated Circuit (MMIC) designed as an in-phase/quadrature (I/Q) downconverter. This device is packaged in a leadless, RoHS compliant SMT (Surface Mount Technology) ceramic package, making it ideal for applications requiring high performance and small footprint.
Key Specifications
| Parameter | Min. | Typ. | Max. | Units |
|---|---|---|---|---|
| Frequency Range, RF | 9 | - | 12 | GHz |
| Frequency Range, LO | 5.5 | - | 15.5 | GHz |
| Frequency Range, IF | DC | - | 3.5 | GHz |
| Conversion Gain (As IRM) | 8 | 11 | - | dB |
| Noise Figure | - | 2.2 | - | dB |
| Image Rejection | 15 | 25 | - | dB |
| 1 dB Compression (Input) | -5 | - | - | dBm |
| LO to RF Isolation | 40 | 50 | - | dB |
| LO to IF Isolation | 5 | 10 | - | dB |
| IP3 (Input) | -3 | 2 | - | dBm |
| Supply Current (ID1 + ID2) | 60 | 88 | - | mA |
| Supply Current (ID3) | 100 | 120 | - | mA |
Key Features
- Compact GaAs MMIC I/Q downconverter in a leadless RoHS compliant SMT ceramic package.
- Small signal conversion gain of 11 dB and a noise figure of 2.2 dB.
- Image rejection of 25 dB, eliminating the need for a filter following the LNA.
- Utilizes an LNA followed by an image reject mixer driven by an LO buffer amplifier.
- Provides I and Q mixer outputs, requiring an external 90° hybrid to select the required sideband.
- Surface mount manufacturing techniques, eliminating the need for wire bonding.
Applications
- Point-to-Point and Point-to-Multi-Point Radio.
- Military Radar, EW & ELINT.
- Satellite Communications.
- Maritime & Mobile Radio.
Q & A
- What is the frequency range of the RF input for the HMC908LC5TR-R5?
The frequency range of the RF input is from 9 GHz to 12 GHz. - What is the typical conversion gain of the HMC908LC5TR-R5?
The typical conversion gain is 11 dB. - What is the noise figure of the HMC908LC5TR-R5?
The noise figure is 2.2 dB. - What is the image rejection capability of the HMC908LC5TR-R5?
The image rejection is 25 dB. - What type of package does the HMC908LC5TR-R5 come in?
The device is packaged in a leadless RoHS compliant SMT ceramic package. - What are the typical supply currents for the HMC908LC5TR-R5?
The supply current for ID1 + ID2 is typically 88 mA, and for ID3, it is typically 120 mA. - What are the operating temperature ranges for the HMC908LC5TR-R5?
The operating temperature range is from -55°C to +85°C. - What are some typical applications of the HMC908LC5TR-R5?
Typical applications include Point-to-Point and Point-to-Multi-Point Radio, Military Radar, EW & ELINT, Satellite Communications, and Maritime & Mobile Radio. - Does the HMC908LC5TR-R5 require an external filter following the LNA?
No, the image reject mixer eliminates the need for a filter following the LNA. - How does the HMC908LC5TR-R5 handle thermal noise at the image frequency?
The image reject mixer removes thermal noise at the image frequency.
