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16CH DTMF MT8870 Audio Decoder Smart Home Controller Voice Mobile Phone Control
16CH DTMF MT8870 Audio Decoder Smart Home Controller Voice Mobile Phone Control
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DC Power Supply Voltage：4.5V-5.5V(Tup: 5V)
Operating Temperature : -40-+85 °C
IO Drive : Sink Current (Low level drive) 20mA,source current(High level drive) 270uA
16 Channel selectable high and low level output.
16 Channel output: 0-9,*# ABCD
8 kinds of Mode selection
PCB Size : 50x20MM
This decoding module is for mobile and fixed telephone voice dialing decoding function , has 16 channels, 8 kinds of selectable output function, and leads to STD signal to use as a microcontroller interrupt signal, very convenient to embed all kinds for mobile and fixed telephoneremote remote control, remote control decoding key value.
12 channels outputs decode mobile and fixed telephone keys (0-9, * #).Another 4 channels output(ABCD) can use "DTMF Dial" Software control.
|
Mode selection (M0 M1 M2) |
Function |
Trigger level |
Illustrate |
|
|
(Default mode) Non-locking (Momentary ) |
High-level |
High level output, 1S later goes low level |
|
|
self-locking (Toggle) |
High-level |
Level inversion High level goes low, Low level goes high |
|
|
Inter-locking (Latch) |
High-level |
Interlock, it is maintained high level signal of output , until next output high level, then recover to low output level |
|
|
Delay 10S (Momentary ) |
High-level |
High level output, 10S later goes low level |
|
|
Non-locking (Momentary ) |
Low level |
Low level output, 1S later goes high level |
|
|
self-locking (Toggle) |
Low level |
Level inversion (After reset High level) High level goes low, Low level goes high |
|
|
Inter-locking (Latch) |
Low level |
Interlock, it is maintained low level signal of output , until next output low level, then recover to high output level |
|
|
Delay 10S (Momentary ) |
Low level |
Low level output, 10S later goes high level |
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