QN9020/21/22 - Ultra-Low-Power Bluetooth LE System-On-Chip Solution

QN902X

Note: QN9090/30 is preferred for any new design. No new software releases planned

QN9020/21/22 is an ultra-low power, high-performance and highly integrated Bluetooth LE solution. It is used in Bluetooth Smart applications such as sports and fitness, human interface devices, and app-enabled smart accessories. It is specially designed for wearable electronics and can run on a small capacity battery such as a coin cell battery.

QN9020/21/22 integrates a Bluetooth LE radio, controller, protocol stack and profile software on a single chip, providing a flexible and easy to use Bluetooth LE SoC solution. It also has a high-performance MCU and an on-chip memory that can support users to develop a single-chip wireless MCU solution. Users can also utilize QN9020/21/22 as a network processor by connecting to an application processor for more advanced applications.

Additional system features include fully integrated DC-to-DC converter and LDO, low-power sleep timer, battery monitor, general-purpose ADC, and GPIOs. These features reduce overall system cost and size. QN9020/21/22 has very low power consumption in all modes. It enables long life in battery-operated systems while maintaining excellent RF performance. QN9020/1 operates with a power supply range of 2.4 V to 3.6 V. The QN9022 operates with a power supply range of 1.8 V to 3.6 V.

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Product Details

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Features

  • True single-chip Bluetooth LE SoC solution
    • Integrated Bluetooth LE radio
    • Complete Bluetooth LE protocol stack and application profiles
    • Supports both controller and target modes
    • Up to eight simultaneous links in controller mode
    • Frequency bands: 2400 MHz to 2483.5 MHz
    • 1 Mbit/s on-air data rate and 250 kHz deviation

    • GFSK modulation format

  • RF
    • -95 dBm RX sensitivity (non-DC-to-DC mode)
    • -93 dBm RX sensitivity (DC-to-DC mode)
    • TX output power from -20 dBm to +4 dBm
    • Fast and reliable RSSI and channel quality indication
    • Compatible with worldwide radio frequency regulations
    • Excellent link budget up to 99 dB
  • Very low power consumption
    • Single power supply of 2.4 V to 3.6 V for QN9020/1
    • Single power supply of 1.8 V to 3.6 V for QN9022
    • Integrated DC-to-DC converter and LDO
    • 2 μA deep sleep mode
    • 3 μA sleep mode (32 kHz RC oscillator on)
    • 9.25 mA RX current with DC-to-DC converter
    • 8.8 mA TX current @0 dBm TX power with DC-to-DC converter
  • Compact 6 mm x 6 mm HVQFN48 package for QN9020, 5 mm x 5 mm HVQFN32 package for QN9021, and 5 mm x 5 mm HVQFN40 package for QN9022
  • Microcontroller
    • Integrated 32-bit Arm® Cortex® M0 MCU
    • 64 kB system memory
    • User-controllable code protection
  • High-level integration
    • 4-channel, 10-bit general-purpose ADC
    • Two general-purpose analog comparators
    • 31 GPIO pins for QN9020, 15 GPIO pins for QN9021, and 22 GPIO pins QN9022
    • GPIO pins can be used as interrupt sources
    • Four general-purpose timers
    • 32 kHz sleep timer
    • Watchdog timer
    • Real-time clock with calibration
    • 2-channel programmable PWM
    • Two SPI/UART interfaces
    • I²C-bus controller/target interface
    • Brownout detector
    • Battery monitor
    • AES-128 security coprocessor
    • 16 MHz or 32 MHz crystal oscillator
    • Low power 32 kHz RC oscillator

    • 32.768 kHz crystal oscillator

Target Applications

  • Sports and fitness
  • Healthcare and medical
  • Remote control
  • Smartphone accessories
  • PC peripherals (mouse and keyboard)
  • Wireless Sensor Networks

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