E-Band I/Q Downconverter, 81 GHz to 86 GHz

The HMC7587 is an integrated, E-band gallium arsenide (GaAs), monolithic microwave integrated circuit (MMIC), in-phase/quadrature (I/Q) downconverter chip that operates from 81 GHz to 86 GHz. The HMC7587 provides a small signal con-version gain of 10 dB with 30 dBc of sideband rejection across the frequency band. The device uses a low noise amplifier followed by an image rejection mixer that is driven by a 6× multiplier.

The image rejection mixer eliminates the need for a filter following the low noise amplifier. Differential I and Q mixer outputs are provided for direct conversion applications. Alternatively, the outputs can be combined using an external 90° hybrid and two external 180° hybrids to allow for single-sideband applications. All data includes the effect of a 3 mm wide ribbon wedge bond on the RF port, and a 1 mm gold wire wedge bond on the intermediate frequency (IF) ports.

Applications

* E-band communication systems

* High capacity wireless backhauls

* Test and measurement

* Conversion gain: 10 dB typical

* Image rejection: 30 dBc typical

* Noise figure: 6 dB typical

* Input power for 1 dB compression (P1dB): −10 dBm typical

* Input third-order intercept (IP3): −2 dBm typical

* Input second-order intercept (IP2): 25 dBm typical

* 6× LO leakage at RFIN: −40 dBm typical

* Radio frequency (RF) return loss: 10 dB typical

* Local oscillator (LO) return loss: 20 dB typical

* Die size: 3.599 mm × 2.199 mm × 0.05 mm