summary:
WTVxxxx is a powerful high-quality product Voice chip High performance 32-bit processor is adopted, and the maximum frequency can reach 120MHz. It has the characteristics of low cost, low power consumption, high reliability, and strong versatility. It can have a built-in voice capacity of 120 seconds to 890 seconds. There are chips packaged with WTVxxxx-8S, WTVxxxx-20N and WTVxxxx-32N. Flexible control mode: support UART control mode; Support 1-wire serial port and 2-wire serial port control mode; Support key control mode (key control mode requires micro customization); （ Please contact customer service personnel before downloading materials to confirm whether they are the latest version ）
At the same time, it supports the expansion of various sensor functions, such as: expansion of IO control, expansion of infrared proximity sensing, expansion of temperature sensing, expansion of battery power detection, expansion of pressure sensing, etc. See the selection table and instructions for details. Each control mode has been fixed before delivery, and the sample needs to be confirmed with our business personnel first.
Application video presentation:
Demonstration of application scheme of mental arithmetic training machine based on WTV voice chip
Please click the following link for demonstration videos of other expanded functions of WTV voice chip:
Demonstration of pressure sensing function | Demonstration of infrared sensing function | Demonstration of temperature sensing function | Digital tube drive demonstration
characteristic:
★ UART control mode: standard UART communication interface, default baud rate 9600; SPI Flash is supported as storage. It has the functions of file index play, insert, single track cycle, all track cycle, random play, etc. The 32 level volume can be adjusted, and the maximum support for external 128Mbit Flash;
★ One line and two line serial port control mode: voice playback, stop, loop playback and volume can be controlled through the code sending end; The 16 level volume is adjustable, and SPI Flash is supported as memory: the maximum external 128 Mbit Flash can be supported;
★ One line and two line serial port control mode: after 5s of power on, it will enter the deep sleep mode by default, and it needs to wake up before sending the code, otherwise the first code sending instruction is invalid and only serves as the wake-up instruction. The second command sent within 5s is valid, and you can refer to the code sending routine provided by our company;
★ One line and two line serial ports. After a single voice IC goes into deep sleep, its power consumption is within 2uA. At present, the recording/external flash circuit uses the internal LDO 3.3V power supply of the chip, and the power consumption is generally about 30uA - 450uA. If it needs to be controlled within 2uA, it needs to use other IO ports to supply power, and customize the project (communicate with our salesperson);
★ Key control mode: the trigger mode is flexible, and any key can be set at will as pulse repeatable trigger, pulse non repeatable trigger, invalid key, level hold non recyclable, level hold recyclable, level non hold recyclable, last song non recyclable, next song non recyclable, next song recyclable, volume+, volume -, play/pause, stop There are 15 trigger modes such as play/stop, and up to 10 keys can be used to trigger the control output;
★ No play by default when power on; With BUSY status indication, BUSY is low level at ordinary times and high level at play;
★ It supports high-quality voice audio format and MP3 format, (audio code rate supports 8kbps~320kbps) with beautiful voice;
★ Working voltage: SOP8: 2.0-3.6V QFN20\QFN32:2.0-5.5V;
★ Built in 0.5W Class D power amplifier;
★ Two 16 bit asynchronous frequency divider timers;
★ An infrared remote control decoder;
★ 16 bit high-precision ADC;
★ High power IO drive capability, up to 64mA can be directly driven;
★ The chip power on initialization time is 200-300ms, generally 100ms chip can complete power on initialization, and the remaining 200ms time, because the company adds voice replacement function, shake hands to determine whether there is a need to update voice after the power on initialization is completed, so it is recommended to send code control after 200-300ms chip power on. If you need to shorten the initialization time of the chip, you can contact our company for special customized processing, which can achieve power on initialization within 60ms;
★ When a single chip is used (using the built-in capacity), the built-in voice needs to be written before leaving the factory. Customers can also create and download their own voice through the Weichuang tool;
★ Support UART update program and voice. It is recommended to reserve UART serial port when drawing board. For upgrade, please refer to serial port upgrade document;
★ Attention: if the voice chip needs to be connected with flash. It is recommended to use flash produced by "Weichuang". Flash produced by other manufacturers cannot guarantee normal operation. (It is recommended to draw 150mil and 208mil size compatible extensions for easier stocking);
★ Description of built-in capacity: SOP8 package: support WTV380-8S/WTV890-8S QFN20：WTV120-N/WTV380-N、QFN32：WTV380-P/WTV890-P;
★ When the chip is powered on and does not play, it will enter normal sleep by default, and the power consumption is 30uA
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
Pin introduction:
SOP8 package pin
QFN20 encapsulated pin
QFN32 encapsulated pin
Schematic diagram of typical application scheme:
Typical applications:
Model selection reference:
Supporting tools:
● Online platform introduction:
Weichuang Zhiyin Online Voice Platform: https://wt588f.waytronic.com:8443
Advantages of Weichuang Zhiyin online voice platform: platform based development process, fast and flexible development method, rich voice resource database, one minute voice editing, one click download and debugging, and accelerating the development progress of engineers' projects.
1. Rich functional mode configuration, supporting the first line, second line, UART, SPI, IIC control modes, adapting to the development habits of more engineers
2. Professional audio filtering technology can attenuate the high frequency band of the voice to reduce the voice's accent and make the voice soft and not harsh
3. Massive and rich midi music library, supporting 5~8 chords, rich timbre, soft voice
4. TTS speech synthesis engine, multiple voice resource selection, support for multi language, children's voice, main broadcast, dialect, etc
5. The engineering project import and export function can complete the development of the whole project by adding excel tables and voice with one key, and accelerate the development progress of engineers
