QM35825

6.5 & 8.0 GHz Ultra-Wideband (UWB) SoC

The QM35825 is a fully integrated Ultra-Wideband solution compliant with IEEE 802.15.4™-2024 and is designed for the best Rx sensitivity and low power. It is optimized for consumer, enterprise and industrial applications supporting FiRa™, Aliro and Omlox ranging schemes with an accuracy of +/- 5 cm and AoA at +/- 2°. It features on-chip computing for ranging, angle of arrival (AoA), radar and data transfer functions. The QM35825 integrates 4 flexible RF ports, LNAs, PA and RF switches, a Cortex-M33 with Secure Enclave and a wealth of security features and communication peripherals.

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Product BriefRev D – 07/2025
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Key Features

  • Worldwide UWB Radio Regulatory Compliance
  • Supports all common data rates including proprietary 62.4 Mbps
  • Supports channels 5 and 9 (6489.6 MHz and 7987.2 MHz)
  • Full support for 802.15.4z HRP, BPRF, and HPRF modes
  • 2 x Hi-Speed SPI slave (typ. 40 MHz)
  • 2 x SPI Master (up to 30 MHz) and 1 x SPI Slave (up to 10 MHz)
  • 25 x GPIO, 2x UART, Timers, GPIO (1.2 V and 1.8 V supported)
  • Supports ETSI +10 dB indoor Tx power increase (up to +6 dBm CH power BPRF-3)
  • -98 dBm 1% Rx sensitivity (BPRF-3)
  • 4-Antenna flexible configuration solution
  • Rx diversity with automatic switching
  • Supports multiple reference frequencies
  • Low power consumption
  • 3D Angle-of-Arrival (AoA)
  • Secure ranging/distance measurement using STS (Scrambled Time Stamp) and enhanced Time-of-Flight (ToF) security options
  • Supports secure ToF modes without the overhead of an external secure element
  • Secure Boot, Secure Debug, Secure Enclave
  • Hardware support for RSA, SHA, AES, TRNG
  • Radar (presence detection, sensing, ...)

Typical Applications

  • Enterprise and Industrial
    • Asset tracking and indoor navigation enabled by precise Real Time Location Systems (RTLS)
    • Secure identification & logical access (payment console, barcode readers, laptops)
    • Geofencing for safety and security
    • Radar for motion detection, vital sign monitoring, people counting, gesture detection/recognition
  • Consumer IoT
    • Enhanced user experience with Location Aware Sensing based on FiRa 3.0 (TV and Air Mouse, Speakers, and Smart Thermostats)
    • Seamless door lock access (based on Aliro specification)

Parameters

UWB Channels
5, 9
Antenna Ports (#)
4
802.15 Standards
4z HRP, BPRF & HPRF
Certifications
FiRa 3.0
Security Features
SESIP3 Compliant
Data Rate
850 kbps, 6.8 Mbps, 7.8 Mbps, 27.2 Mbps, 31.2 Mbps & 62.4 Mbps (proprietary)
Ranging Accuracy (cm)
5
PDoA Support
Yes
Angle of Arrival (degrees)
2
Link Budget (dBm)
Up to 104
MCU
Internal
Interface
SPI
Voltage (V)
1.14 to 3.6
Package Type
BGA-74
Package Size (mm)
4.08 x 3.38 x 0.63

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