• Description

The ARI2444 is a multi-channel 24GHz ISM-band FMCW radar transceiver with an integrated PLL, transmitters, receivers, and baseband. The IQ receiver has the Integrated baluns for single-ended receiver (Rx) inputs and programmable baseband. The transmitter provides the beam forming (5bit phase, 2bit attenuation) controllability. The transceiver features a fractional-N frequency synthesizer with variable waveform generation, and fast chirp time. Control of all the on-chip registers is through a simple, 4-wire serial peripheral interface (SPI). The ADI2444 comes in a compact, 40-lead, 5 mm × 5 mm QFN package.

• Key Features

• 4-Channel I/Q Receiver for Digital Beamforming
– Rx channel gain: 30-120 dB
– Noise figure (NF): 12 dB
– IP1dB: −10 dBm
– Integrated high-pass filter: fHPF=100k, 200k, 300k, 400k
• Analog Beamforming 4-channel Transmitter
– Saturated output power: 8dBm
– Phase Control resolution: 5.625 (5bit)
– Attenuation Control resolution: 1dB (2bit)
– Automatic Beamforming Sequence
• Fast Chirp PLL
– Frequency: 24GHz ~ 24.25GHz
– Chirp Bandwidth: 0 – 250 MHz
– Chirp Time: 50 – 10 msec.
– Sawtooth, Triangle, FSK, CW

• Applications

– Automotive radars
– Industrial radars
– Microwave radar sensors.

• Block Diagram

• Evaluation Kits

– 60GHz 8Tx-8Rx Radar Board (1 pcs)
– USB Type-C Cable (1 pcs)
– ARR24XX Evaluation GUI Software

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