Pulsed coherent radar sensor integrates the baseband, RF front end, and antenna in a 5.2 x 5.5 x 0.88 mm fcCSP50 package. The sensor operates over 57 to 64 GHz and measures absolute range up to 23 m with millimeter-class distance accuracy. It uses a single 1.8 V core supply with 1.8 V or 3.3 V I/O and communicates through a 4-wire SPI interface supporting up to 50 MHz clock frequency. The device is rated for -40 °C to 105 °C operation and meets RoHS and REACH requirements.
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| Sensor technology | Pulsed coherent radar |
| Operating frequency range | 57 to 64GHz |
| Maximum absolute range | 23m |
| RF integration | Integrated baseband, RF front-end, and antenna in package |
| Package | fcCSP50 |
| Package size | 5.2 x 5.5 x 0.88mm |
| Ball pitch | 0.5mm |
| Core supply voltage | 1.71 to 1.89, 1.8 typicalV |
| I/O supply voltage | 1.71 to 1.89 or 2.97 to 3.45V |
| Operating temperature | -40 to 105°C |
| SPI clock frequency | 50 maxMHz |
| I/O output operating frequency | 100 maxMHz |
| EIRP | 11.4 typicaldBm |
| TX half-power beamwidth E-plane | 53 typicaldegrees |
| TX half-power beamwidth H-plane | 65 typicaldegrees |
| Distance accuracy, profile 1 | 2.67 typical standard deviationmm |
| Moisture sensitivity level | MSL 3 |
| Maximum reflow temperature | 260°C |
| RoHS | Compliant with Directive 2011/65/EC |
| REACH | Compliant with Regulation EC 1907/2006 |
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User guide for the Acconeer A121 radar sensor assembly test, used to verify PCB assembly and assist in hardware/software bring-up using the Acconeer SDK.
