4-Channel, 24 GHz, Receiver Downconverter

The ADF5904 is a 4-channel, 24 GHz, receiver downconverter. 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.

Control of the on-chip registers is through a simple 3-wire interface.

The ADF5904 comes in a compact 32-lead, 5 mm × 5 mm LFCSP package.

Applications

* Automotive radars

* Industrial radars

* Microwave (µW) radar sensors

* Integrated baluns for single-ended receiver (Rx) inputs and local oscillator (LO) input

* Rx channel gain: 22 dB

* Noise figure (NF): 10 dB

* P1dB: −10 dBm

* LO input range: −8 dBm to +5 dBm

* Rx to IF isolation: 30 dB

* RF signal bandwidth: 250 MHz

* Rx output impedance: 900 Ω differential

* LO input buffer: 24 GHz

* RF and LO S11 at 50 Ω: −5 dB

* Temperature sensor with analog output: ±5°

* Electrostatic discharge (ESD) performance

* Human body model (HBM): 2000 V

* Charged device model (CDM): 500 V

* Qualified for automotive applications