Doorbell music chip circuit diagram

Probe domestic switch needle KG-300K needle head diameter is 3.0mm normally open switch needle

Doorbell music chip circuit diagram

Chip features:

?? Programmable One-Time Programming (OTP) Voice Chip

?? 6KHZ frequency, the voice length is 40-340 seconds

?? Built-in 12bits-16bits DAC digital / emulation converter (DAC)

?? PWM and DAC two voice output methods

?? Can be inserted silently, and does not occupy voice space

?? The same voice can be called repeatedly without taking up voice space

?? Multiple working modes: button control mode, address control mode, serial port control mode

?? Button mode: 8 switches can be directly controlled by the switch, and the trigger mode is flexible.

?? Address control mode: 3 address pins, 1 trigger pin, the address is encoded in binary mode, can control 8 segments of voice

?? Serial port control mode: use CS, DATA, CLK three feet to control the playback of voice, you can control the volume, and have loop play and stop function

?? When playing voice, BUSY pin output low level

?? Built-in 0.5W speaker Direct-Drive, no need for additional parts, better sound quality and volume than the traditional "Cout + Transistor", and less power consumption

?? Operating voltage range: 2.5V to 3.6V.

?? Power consumption mode 2uA.

The WTV series voice chip is a powerful one-time programming voice chip. The 6K sampling frequency can store 40-340 seconds of sound, and the audio output is PWM or DAC mode. Optional control modes are button mode, parallel port mode, and serial port mode. The trigger mode is flexible in the button mode; the volume can be controlled in the serial mode, and there are loop playback and stop functions.

The voice programming software is simple in operation and complete in function, which can greatly shorten the production cycle of the chip, and the performance is reliable, making full use of the resources inside the chip.

This chip has a large number of unit circuits, and has a strong programmability, not only can achieve standard control methods, but also can be customized according to customer needs, as much as possible to maximize the cost-effectiveness of the product. It can be used to play stereo voice, and can also control various electrical equipment. It can be used in many fields, such as: advanced toys, children's learning machines, anti-theft devices, smart home appliances, health and physiotherapy products, instrumentation, and various automatic control systems. and many more.

Here are some simple, typical applications:

First, the door magnetic voice reminder circuit

1, application: electric room, electric box ... ... and other places with electrical danger; remind the operator to pay attention to safety.

2, functional requirements: trigger a paragraph of voice "pay attention to electricity" for 10 consecutive reports, insert 100 milliseconds of silence in the middle.

3, the working principle of the circuit: trigger a voice chip to send an alarm voice through a magnetic switch. The function of this circuit is that when the staff opens the electric box door, the magnetic switch is turned off, triggering the voice chip to issue "attention, have electricity" for ten consecutive times.