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CPU and Flexible IO
Up to 160MHz 32-bit RISC-V CPU with DSP instruction
Program memory: internal 4M/8M bit flash
Internal 280KB RAM for data and program
Flexible GPIO pins with Programmable pull-up and pull-down resistors
Support GPIO wakeup or interrupt
TDNN_Accelerator for KWS
RDFT & MATIX_Accelerator for AI ENC/AI AEC
Bluetooth Radio
Compliant with Bluetooth V6.0 + BR + EDR + BLE specification (QDID: Q342942)
Bluetooth transmit power：
-BR: up to 11.5dBm
-EDR: up to 8.5dBm
Bluetooth receiver sensitivity:
-BR: -95.5dBm
-EDR: -94.5dBm
-BLE 1M: -98dBm
-BLE 2M: -95dBm
Audio Interface
High performance audio DAC x1:
-SNR: 122dB with DRE ON
-SNR: 108dB with DRE OFF
-DNR: 108dB
-Sample rate: 8KHz to 384 KHz
High performance audio ADC x1:
-SNR: 105dB
-Sample rate: 8KHz to 384 KHz
Support one channel single-ended MIC amplifier input, support resistance-free and capless MIC input
Support flexible audio EQ adjust
Support Single-MIC AI environment noise cancellation (ENC)
Package
QFN20 3*3
Temperature
Operating temperature: -40℃ to +85℃;
Storage temperature: -65℃ to +150℃;
- CPU： RISC-V + DSP扩展 (160MHz)
- 封装： QFN20
- 蓝牙协议： BT 6.0 双模（QDID: Q342942）
- Flash： 4 Mbit/8 Mbit
- 内置充电： 支持