Product introduction:
WTK6900H is the identification chip of the local voice trigger engine, which has the characteristics of low cost, high reliability and strong versatility. In terms of voice technology, it has achieved high reliable wake-up recognition rate, longer distance wake-up, lower false wake-up rate, richer number of voice control commands, stronger anti noise ability, and faster response recognition time. The existing WTK6900H-16S and WTK6900H-24SS Speech recognition chip 。
Chip characteristics
● Core and storage
-High performance 32-bit core, 240MHz main frequency, supporting hardware floating point operation
-Built in 1MB SPI FLASH
● AI algorithm
- Offline speech recognition , using the latest neural network algorithm, it has the advantages of accurate identification, low error rate, and reliable identification at 5m far field
-Speech noise reduction algorithm: it filters out the steady noise and has a good inhibitory effect on the dynamic noise. It can also accurately recognize under the noise
-Audio decoding: support MP3 , WAV Audio decoding
● Audio
-Two channel 16 bit DAC, SNR>=95dB
-Single channel 16 bit ADC, SNR>=90dB
-The sampling rate supports 8KHz/11.025KHz/16KHz/22.05KHz/24KHz/32KHz/44.1KHz/48KHz
-DAC supports direct push output
● Power supply
-VCC is 3.3V to 5.5V
-VOUT is 2.2V to 3.4V
● Bluetooth
-Conform to Bluetooth V5.1+BR+EDR+BLE specification
-Meet Class1 class2 and class3 transmission power consumption requirements
-Supports all packaging types of GFSK and π/4 DQPSK
-Provide+6dbm transmit power
-Receiver with - 90dBm sensitivity
-Fast AGC enhances dynamic range
-Support a2dp avctp avdtp avrcp hfp spp smp att gap gatt rfcomm sdp l2ca configuration file
● Peripherals
-Four multi-function 16 bit timers supporting capture and PWM modes
-Two 16 bit PWM drive generators
-A full duplex basic UART
-One SPI interface supports host and device modes
-External wake-up/interrupt on all GPIO
● Operating temperature
-Operating temperature: - 40 ℃ to+85 ℃
-Storage temperature: - 65 ℃ to+150 ℃
● Application field
-Smart appliances (living appliances, health appliances, kitchen appliances, etc.)
-Smart bathroom, smart lighting, smart electromechanical, smart home.
-Smart toys
Model selection table:
If you need a sample, please select the corresponding chip model and function code according to the following selection table, and contact our business personnel
![WTK6900H-24SS speech recognition chip module ic WTK6900H-24SS speech recognition chip module ic](https://0.rc.xiniu.com/g4/M00/A2/D2/CgAG0mUOlS6AI6ZRAAEXbgz6iy4498.jpg)
Pin related:
![WTK6900H-24SS speech recognition chip module ic WTK6900H-24SS speech recognition chip module ic](https://0.rc.xiniu.com/g4/M00/A2/D3/CgAG0mUOlVqASmBrAABRF15d_ok215.jpg)
![WTK6900H-24SS speech recognition chip module ic WTK6900H-24SS speech recognition chip module ic](https://0.rc.xiniu.com/g4/M00/A2/D3/CgAG0mUOlVqAAvwdAAE8p1C0sBQ970.jpg)
![WTK6900H-24SS speech recognition chip module ic WTK6900H-24SS speech recognition chip module ic](https://0.rc.xiniu.com/g4/M00/A2/D3/CgAG0mUOlVyAHQ_MAABvrVANty8627.jpg)
![WTK6900H-24SS speech recognition chip module ic WTK6900H-24SS speech recognition chip module ic](https://0.rc.xiniu.com/g4/M00/A2/D3/CgAG0mUOlV2AIm6fAAGl7sIqTBI513.jpg)
Application field:
-Smart appliances (living appliances, health appliances, kitchen appliances, etc.)
-Smart bathroom, smart lighting, smart electromechanical, smart home.
-Smart toys
![WTK6900H-24SS speech recognition chip module ic WTK6900H-24SS speech recognition chip module ic](https://0.rc.xiniu.com/g4/M00/A2/D0/CgAG0mUOgtSAIQC8AAA_NIGC5DQ514.jpg)