Overview
The HMC525LC4 is a compact gallium arsenide (GaAs) monolithic microwave integrated circuit (MMIC) I/Q mixer, designed and manufactured by Analog Devices Inc. This component is housed in a 24-terminal, RoHS compliant, leadless ceramic leadless chip carrier (LCC) package. It can be used as either an image reject mixer or a single sideband (SSB) upconverter. The mixer utilizes two standard double balanced mixer cells and a 90° hybrid fabricated in a GaAs metal semiconductor field effect transistor (MESFET) process. This design makes it a much smaller alternative to hybrid style image reject mixers and SSB upconverter assemblies, eliminating the need for wire bonding and allowing the use of surface-mount manufacturing techniques.
Key Specifications
| Parameter | Min. | Typ. | Max. | Units |
|---|---|---|---|---|
| Frequency Range, RF/LO | 4.0 | 5.5 - 7.5 | 8.5 | GHz |
| Frequency Range, IF | DC | - | 3.5 | GHz |
| Conversion Loss (As IRM) | 7.5 | 11 | 9.5 | dB |
| Image Rejection | 30 | 35 | 40 | dB |
| 1 dB Compression (Input) | +14 | +15 | - | dBm |
| LO to RF Isolation | 40 | 45 | 50 | dB |
| LO to IF Isolation | 17 | 20 | 20 | dB |
| IP3 (Input) | +23 | +23 | - | dBm |
| Amplitude Balance | 0.3 | 0.2 | - | dB |
| Phase Balance | 8 | 4 | - | Deg |
Key Features
- Compact 24-terminal, RoHS compliant, leadless ceramic LCC package (4 mm x 4 mm)
- Operates as either an image reject mixer or a single sideband (SSB) upconverter
- Utilizes two standard double balanced mixer cells and a 90° hybrid in GaAs MESFET process
- High image rejection: up to 40 dB
- High LO to RF isolation: up to 50 dB
- High input IP3: +23 dBm
- Wide IF bandwidth: DC to 3.5 GHz
- No wire bonding required, suitable for surface-mount manufacturing
Applications
- Point-to-Point and Point-to-Multi-Point Radio
- VSAT (Very Small Aperture Terminal) systems
- Microwave and test equipment
- Military electronic warfare, electronic countermeasures, and command, control, communications, and intelligence (C3I) systems
Q & A
- What is the frequency range of the HMC525LC4?
The HMC525LC4 operates in the frequency range of 4.0 GHz to 8.5 GHz for RF/LO and DC to 3.5 GHz for IF.
- What type of package does the HMC525LC4 come in?
The HMC525LC4 is housed in a 24-terminal, RoHS compliant, leadless ceramic LCC package (4 mm x 4 mm).
- What are the typical applications of the HMC525LC4?
The HMC525LC4 is typically used in point-to-point and point-to-multi-point radio, VSAT systems, microwave and test equipment, and military electronic warfare and C3I systems.
- What is the image rejection capability of the HMC525LC4?
The HMC525LC4 has an image rejection capability of up to 40 dB.
- What is the LO to RF isolation of the HMC525LC4?
The LO to RF isolation of the HMC525LC4 is up to 50 dB.
- What is the input IP3 of the HMC525LC4?
The input IP3 of the HMC525LC4 is +23 dBm.
- Can the HMC525LC4 be used as both an image reject mixer and an SSB upconverter?
- What is the IF bandwidth of the HMC525LC4?
The IF bandwidth of the HMC525LC4 is from DC to 3.5 GHz.
- Does the HMC525LC4 require wire bonding?
No, the HMC525LC4 does not require wire bonding, allowing the use of surface-mount manufacturing techniques.
- What is the typical conversion loss of the HMC525LC4?
The typical conversion loss of the HMC525LC4 is around 11 dB.
