Overview
The QN9021/D518, produced by NXP USA Inc., is an ultra-low power Bluetooth Low Energy (BLE) system-on-chip solution. This device integrates a Bluetooth LE v4.2 compliant radio, link controller, and host stack, making it a comprehensive single-chip solution for various Bluetooth Smart applications. The QN9021/D518 is designed to operate in both master and slave modes, supporting secure connections and up to eight simultaneous links in master mode. It features a 32-bit ARM Cortex-M0 MCU, along with integrated memory and various peripherals, ensuring low-power operation and high functionality.
Key Specifications
| Parameter | Specification |
|---|---|
| Frequency Bands | 2400 MHz to 2483.5 MHz |
| Modulation Format | GFSK |
| TX Output Power | -20 dBm to +4 dBm |
| RX Sensitivity | -95 dBm (non-DC-to-DC mode), -93 dBm (DC-to-DC mode) |
| Data Rate | 1 Mbit/s on air data rate |
| MCU | 32-bit ARM Cortex-M0 |
| System Memory | 64 kB |
| ROM | 96 kB |
| Flash Memory | 128 kB with 4 kB page size |
| GPIO Pins | 31 pins for QN9021 |
| Serial Interfaces | SPI, UART, I2C |
| Supply Voltage | 2.4V to 3.6V |
| Operating Temperature | -40°C to 85°C |
| Current - Receiving | 9.2 mA |
| Current - Transmitting | 8.8 mA |
| Package/Case | 32-VFQFN Exposed Pad |
Key Features
- Ultra-low power consumption for extended battery life.
- Supports both master and slave modes with secure connections.
- Up to eight simultaneous links in master mode.
- Integrated 32-bit ARM Cortex-M0 MCU with 64 kB system memory and 128 kB on-chip flash memory.
- Four-channel, 10-bit general-purpose ADC and two general-purpose analog comparators.
- Multiple digital serial interfaces including SPI, UART, and I2C.
- Integrated AES coprocessor for encryption with minimal MCU usage.
- Real-time clock with calibration and watchdog timer.
- Brownout detector and battery monitor.
Applications
The QN9021/D518 is suitable for a wide range of Bluetooth Smart applications, including:
- Wireless sensors and actuators.
- Health and fitness devices.
- Smart home automation.
- Industrial automation and control systems.
- Wearable devices.
- Internet of Things (IoT) devices.
Q & A
- What is the primary function of the QN9021/D518?
The QN9021/D518 is an ultra-low power Bluetooth Low Energy (BLE) system-on-chip solution, integrating a radio, link controller, and host stack for Bluetooth Smart applications. - What are the supported frequency bands?
The device operates in the frequency bands of 2400 MHz to 2483.5 MHz. - What is the modulation format used by the QN9021/D518?
The modulation format used is GFSK (Gaussian Frequency Shift Keying). - What is the range of TX output power?
The TX output power ranges from -20 dBm to +4 dBm. - What is the RX sensitivity of the device?
The RX sensitivity is -95 dBm in non-DC-to-DC mode and -93 dBm in DC-to-DC mode. - What type of MCU is integrated into the QN9021/D518?
The device features a 32-bit ARM Cortex-M0 MCU. - How much system memory and flash memory does the QN9021/D518 have?
The device has 64 kB of system memory and 128 kB of on-chip flash memory. - What are the available serial interfaces?
The device supports SPI, UART, and I2C serial interfaces. - What is the operating temperature range of the QN9021/D518?
The operating temperature range is -40°C to 85°C. - What are some typical applications of the QN9021/D518?
Typical applications include wireless sensors, health and fitness devices, smart home automation, industrial automation, wearable devices, and IoT devices.
