The baseband inputs in Cartesian I and Q format control the amplitude and phase modulation imposed on the RF input signal. Both I and Q inputs are dc-coupled with a +-500mV differential full-scale range. The maximum modulation band- width is 230MHz, which can be reduced by adding external capacitors to limit the noise bandwidth on the control lines.
The AD8340 is fabricated using the Analog Devices, Inc. proprietary, high performance 25GHz SOI complementary bipolar IC process. It is available in a 24-lead RoHS-compliant LFCSP package and operates over a -40°C to +85°C temperature range. Evaluation boards are available.