Voice Over BLE Solution
Our portfolio of low-power, cost-effective wireless solutions for embedded devices address many monitoring and control applications for the Internet of Things including consumer, smart energy, industrial, and healthcare. The solution described the VoLE (Voice over BLE), which is used to implement a Low Energy audio wireless transfer function over BLE this solution is based on NXP BLE5.0 chip QN9090.
Product Details
Supported Devices
Wireless Connectivity
Bluetooth Low Energy
- QN9090-30: QN9090/30: Bluetooth Low-Energy MCU with Arm®Cortex®-M4 CPU, Energy Efficiency, Analog and Digital Peripherals and NFC Tag Option
Power Management
Battery Chargers
- MC34671: 600 mA Single-Cell Li-Ion / Li-Polymer Battery Charger
Load Switches
- NX3P2902BUK: Logic-Controlled High-Side Power Switch
CPU and Memory
- Up to 48 MHz Cortex®-M4
- Up to 640 kB flash, up to 152 kB RAM, 128 kB ROM
- NFC NTAG Option with EEPROM
- Quad-SPI for execute in place or data storage in NVM
RF performance/power consumption
- -97 dBm RX sensitivity
- up to 11 dBm TX power
- RX 4.3 mA, DC/DC on at 3 V
- TX 7.4 mA @ 0 dBm, 20.5 mA @ 10 dBm
- BLE 5.0 with 2 Mbps and up to 8 simultaneous connections
Security
- AES256 with hardware protected key
- Hash engine (SHA256)
- Code readout protection
Digital and Analog Interface
- UART/SPI/I²C up to 2
- ISO7816 Interface for Secure Access Module
- 8 ch 12-bit ADC,
- 1 Analog comparator
- Digital Microphone Interface and Audio Event Detection
Documentation
Quick reference to our documentation types.