UPC 682559868852
Barcode for KOOBOOK 5Pcs MT8870 DTMF Voice Decoder Decoding Module Telephone/Audio Decoder Speech Module for Arduino
Scannable Barcode for UPC 682559868852
Sellers
| Marketplace | Price | Updated |
|---|---|---|
| $6.09 | 04/08/2022 06:00:03 GMT - Details |
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Attributes
| Attribute | Value |
|---|---|
| Brand | KOOBOOK |
| Color | 5PCS |
| EAN | 0682559868852 |
| Manufacturer | KOOBOOK |
| MPN | KB345 |
| UPC | 682559868852 |
Description
- Onboard MT8870 complex frequency decoding chip, onboard voice input interface, onboard 5 LED indicator, easy to view the output status.
- It is a complete DTMF receiver integrating both the bandsplit filter and digital decoder functions.
- After receiving the DTMF signal, it splits the signal into a high frequency band and a low frequency band, and sends the signal to the digital decoder to decode the key value, and then the solved key value is in a binary manner with four lines output to the external shared Bus.
- When the MT8870 solves a button value and outputs it to the outside, its STD pin will rise from a low state to a high state, and then drop to a low state after a period of time. With this feature, when the signal is detected by this pin, the value generated by the Q1-Q4 pin is immediately read into the CPU, and then the button value of the phone is solved.
- The basic chip has been the main pin leads.PCB size: 26.5 x24.5
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