QN9020/21/22

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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.

See product image

Data Sheet

Application Notes

Product Details

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