● General
WT588F02BP-14S is developed by Shenzhen Weichuang Zhiyin Electronics Co., Ltd High power voice chip The audio output type is PWM, and the built-in class D audio power amplifier circuit can directly push a 4 ohm 3W speaker. Its output can work normally without LC filtering. It reduces EMI interference in the full bandwidth range and minimizes the impact on other components. At present, the WT588F02BP-14S can store voice content of 170 seconds at most (if the customer has no requirements for voice quality, it can store voice content of 320 seconds at most). WT588F02BP-14S is different from the traditional voice chip. It can change the internal voice content of the chip online through the matching downloader; The chip supports 1-wire and 2-wire serial communication.
● Function description
1. The working voltage is 2.5V~5.5V (in order to make the power amplifier work normally, the minimum working voltage is recommended to be no less than 3.0V);
2. Audio output mode: 16bit PWM;
3. Direct drive 4R 3W@5V Horn;
4. Support audio playback of 6K~32Khz sampling rate;
5. Customers can change the internal voice content of the chip through the supporting downloader;
6. Support 1-wire serial port and 2-wire serial port;
7. Support 1000 segments of address voice at most;
8. The chip has a built-in 220KB Flash, which can play high-quality voice for up to 170 seconds.
9. Flash type voice chip, chip master program and Flash data can be repeatedly burned.
10. The chip power on initialization time is about 200ms
11. After the chip plays, and the I/O port (DATA and CLK) keeps the level stable (both high and low levels are available) for 1s, the chip goes into sleep
12. The chip is equipped with Class D audio power amplifier, with efficiency up to 88%, and no filter is required;
13. Built in short circuit protection, overcurrent protection and overheat protection;
14. Excellent full bandwidth EMI suppression capability
15. Excellent "power on/power off" noise suppression
16. Note: the PA2 pin of the chip is usually low, and the playback is high
● Pin description
Note: Do not add up and down to PA2, which may cause IC to enter non working mode.
● Limit parameters
Note: According to the laboratory test results of the sample, the chip can work normally at - 40 ℃~+85 ℃.
● Electrical characteristics
VCC=3.0V, Ta=25℃
Note: When the chip is playing normally and initializing, the power supply should not fluctuate more than 1.3V.
● Typical application field | Product:
● Cooperative customers:
● Supporting tools:
● Online platform introduction:
Weichuang Zhiyin Online Voice Platform: https://wt588f.waytronic.com:8443/user/login?redirect=%2Fdashboard%2Fanalysis
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.
● Product application field:
