2 ATA8352 UWB Device

The ATA8352 UWB device is a highly integrated low-power IR-UWB transceiver with an integrated security layer for secure distance bounding and data communication between two devices.

The ATA8352 transceiver includes fully-digital transmitting circuitry to provide maximum flexibility in generating UWB pulse signals.

  • The transmitter can accurately generate pulse durations ranging from less than 1 ns to more than 10 ns, with a controlled envelope shape and a carrier frequency from around 6.2 GHz to 8.3 GHz.

  • The receiver is characterized by a high-gain and low-power wideband analog radio frequency front-end and a high-speed and low-power digital baseband processor.

The ATA8352 UWB device features:

  • Low-power secure ranging technology
  • Spectrum of transmission is compliant to UWB regulations of ETSI (EN 302 065-3 V2.1.0) and FCC (Title 47, part 15)
  • UWB data communication up to 1 Mbps
  • Single distance measurement with 4 cm resolution
  • Distance measurement method is secured against multiple-attack scenarios, for example, Cicada Attack, Early Detect/Late Commit, Preamble Injection
  • Tailored for industrial and home appliance applications for localization and secure distance bounding
  • Fast SPI interface (24 MHz) for communication between the ATA8352 and a host microcontroller
  • RX and TX peak power allows coin cell battery applications with an external DC-DC converter
  • Operating conditions:
    • IC core voltage is 1.25V
    • I/O voltage range is 2.0V to 3.5V
    • Temperature range is -40°C to +105°C
  • Package details:
    • 33 pins, thin profile fine pitch ball grid array (TFBGA)
    • Size: 4.5 mm x 4.5 mm
    • Ball pitch: 0.65 mm
    • Ball diameter: 0.4 mm

The secure distance-bounding and data transmission layer in the ATA8352 UWB device can operate with any microcontroller that can provide cryptographically secure random number generation and authentication routines. The ATA8352 UWB device supports three different operating modes:

  • Verifier/Prover (VR/PR): For distance-bounding and localization applications, the device is switched into autonomous operating modes, handling receive and transmit operation during the measurement period. The device can operate as a verifier by transmitting and receiving the measurement pulses as well as challenge and response data. On the other side, the device can operate as a prover to receive and re-transmit the measurement pulses creating the response data.
  • Receive/Transmit (RX/TX): For data communication, the device supports Transmit and Receive modes to establish a bidirectional communication between the ATA8352 UWB devices.
  • Time Difference of Arrival (TDoA): The TDoA operation uses the RX and TX data communication with timestamp capturing, a specialized header and footer section in payload format. The timestamp capturing occurs at different positions while transmitting or receiving a TDoA data telegram. The TDoA implementation supports wired and wireless synchronization, and scheduled data telegram transmission. Measure the time difference between a transmitter (Tag) and several receivers (Anchors).
Note: For more details about modes, packets, features and device overview, refer to the ATA8352 Impulse-Radio Ultra-Wideband (IR-UWB) Transceiver Data Sheet and ATA8352 Impulse-Radio Ultra-Wideband (IR-UWB) Transceiver User’s Guide.