ADI HMC977LP4E

The HMC977 is a compact, gallium arsenide (GaAs), monolithic microwave integrated circuit (MMIC), inphase and quadrature (I/Q) downconverter in a leadless, RoHS compliant, surface-mount technology (SMT) package. This device provides a small signal conversion gain of 14 dB with a noise figure of 2.5 dB and 21 dBc of image rejection. The HMC977 utilizes a low noise amplifier (LNA) followed by an image reject mixer which is driven by an active 2x multiplier. The image reject mixer eliminates the need for a filter following the LNA and removes thermal noise at the image frequency. I and Q mixer outputs are provided and an external 90° hybrid is required to select the required sideband. The HMC977 is a much smaller alternative to hybrid style image reject mixer downconverter assemblies and is compatible with surface-mount manufacturing techniques.

• Conversion gain: 14 dB typical
• Image rejection: 21 dBc typical at 20 GHz to 26.5 GHz
• 2x10 to RF isolation: 45 dB typical at 20 GHz to 26.5 GHz
• Noise figure: 2.5 dB typical at 20 GHz to 26.5 GHz
• Input IP3: 1 dBm typical at 20 GHz to 26.5 GHz
• LO drive range: 2 dBm to 6 dBm
• 24-lead 4 mmx4 mm LFCSP

• Point to point and point to multipoint radios
• Satellite communications