WTK6900FC-24SS M02 Speech Recognition Module

Product Introduction

WTK6900FC is the recognition module of the local voice trigger engine. Based on the most advanced deep neural network (DNN-HMM) voice recognition technology, the module realizes high recognition rate, high real-time performance, local and cloud combination, and highly integrated voice recognition and processing functions; it can realize specific intelligent voice interaction effects such as semantic recognition. At the same time, the module has the control and computing processing capabilities of conventional MCU, and can realize various applications that require communication and control.
In terms of application, the module can support local voice detection and wake-up, offline 5-8 meters far-field recognition and 300 offline command entries. The module can push commands to the original host computer of the device through UART to realize a simple voice interaction interface. The module solution supports multiple global languages ​​such as Chinese, English, and Japanese, and can be widely used in home appliances, lighting, toys, wearable devices, industry, automobiles and other product fields to realize voice interaction and control and various intelligent voice solution applications.

Module Features

• Core and Storage
  CPU main frequency can reach 220 MHz
  Built-in 2MBytes Flash memory
  Built-in 640KBytes SRAM
  Built-in 512bit eFuse, which can be used for application encryption
• AI algorithm
  BNPU V3, supports neural networks such as DNN\TDNN\RNN\CNN and parallel vector operations, and can realize functions such as speech recognition, command word self-learning, speech detection and deep learning noise reduction
• Audio Codec
  High-performance and low-power audio ADC, SNR ≥ 95dB
  Low-power audio DAC, SNR ≥ 95dB
• Audio interface
  1 IIS interface, support master-slave configurable
  1 dual-channel PDM interface
• ADC and PWM
  Built-in 1-channel 12bit SAR ADC
  Support 6-channel PWM interface
• GPIO
  10 high-speed GPIO, response rate can reach 20MHz
  7 GPIOs support 5V input
• Reset and power management
  Built-in power management unit PMU
  PMU input voltage range: 3.6V to 5.5V
  Built-in power-on reset (POR)
  Built-in voltage detection (PVD)
• Clock
  Built-in RC oscillator, also supports external crystal oscillator; developers can choose to use built-in RC or external crystal as clock source according to different application solutions
• Communication interface
  1-way IIC interface
  3-way UART interface, support 5V communication, support up to 3Mbps rate
• Timer and watchdog
  Built-in 4 groups of 32-bit timers and 2 groups of watchdogs
• Operating temperature
  Operating temperature: -10℃ to +70℃
  Storage temperature: -55℃ to +150℃
• Application areas
  Smart home appliances (life appliances, health appliances, kitchen appliances, etc.)
  Smart bathroom, smart lighting, smart electromechanical, smart home.
  Smart toys

Pin Definition

WTK6900FC-24SS M02 module physical picture

WTK6900FC-24SS M02 physical pin description