The ADF5904 is a 4-channel, 24 GHz, receiver downconverter. It provides an Rx channel gain of 22 dB with a noise figure of 10 dB and a P1dB of 10 dBm. Each channel contains a single-ended RF input with an on-chip balun followed by a differential low noise amplifier (LNA) and a downconverter mixer with differential output buffers. The RF LO path also has an on-chip balun. The on-chip registers are controlled through a simple 3-wire interface.
The ADF5904 is available in a compact 32-lead, 5 x 5 mm LFCSP package and is ideal for automotive radars, industrial radars and microwave (µW) radar sensors.