ATTENTION: Due to increased demand and order volume, processing time may take an additional 1-3 business days.
HomeCommunitySubjectMT8870 DTMF Receiver: Pin Description, Price and Datasheet

MT8870 DTMF Receiver: Pin Description, Price and Datasheet

IC TELECOM INTERFACE 18SOIC Hello, guys. I am Rose. In today's post, I will introduce MT8870 to you.

683

Aug 13, 2021

Alma Fanny

DTMF Decoding / MT8870

 

IC TELECOM INTERFACE 18SOIC

Hello, guys. I am Rose. In today's post, I will introduce MT8870 to you. MT8870 is a DTMF Receiver. This article mainly introduce pin description, price, datasheet and other detailed information about Microchips Technology MT8870.

MT8870DS1

80In Stock
Min.: 1 Mult.: 1
Quantity Unit Price Ext. Price
1+ $10.43138$10.43
10+ $9.84093$98.41
100+ $9.28389$928.39
500+ $8.75839$4379.2
1000+ $8.26263$8262.63
Unit Price:$10.43138
Subtotal: $10.43
Looking for a better price? Want a lower wholesale price? Please send an RFQ, and we will respond immediately.
Quick Links

MT8870 Description

The MT8870 is a complete DTMF receiver integrating both the bandsplit filter and digital decoder functions. The filter section uses switched capacitor techniques for high and low group filters; the decoder uses digital counting techniques to detect and decode all 16 DTMF tone-pairs into a 4-bit code.

 

It is commonly used to control robots with a mobile phone, it is also used in different kinds of home automation projects where mobile dial pad input is required. This module works as a tone decoder that uses its 3.5 mm audio connector socket to get the input audio signal. It is popularly used for mobile and fixed telephone voice dialing and recording related functions.

 

MT8870 Pinout

MT8870 CAD Model

Symbol

 

Footprint

 

3D Model

MT8870 Features

● Power Input: 5V Nominal (4.5V - 5.5V)

● Onboard 3.5mm jack input Facility

● MT8870 Based Frequency Decoder

● 5 Channel Interface

● Detects 0-9, A-D, *, #

● LED notifier for Output state

● 2.54” Pin pitch

● Board Dimension: 37 x 25 x 12 mm (l x w x h

● Complete DTMF Receiver

● Low power consumption

● Internal gain setting amplifier

● Adjustable guard time

● Central office quality

● Power-down mode

● Inhibit mode

● Backward compatible with MT8870C/MT8870C-1

 

Specifications

Microchip Technology MT8870DS1 technical specifications, attributes, parameters and parts with similar specifications to Microchip Technology MT8870DS1.

MT8870DS1 Tech Specifications

Microchip Technology MT8870DS1 technical specifications, attributes, parameters and parts with similar specifications to Microchip Technology MT8870DS1.

Product Attribute Attribute Value
Lifecycle StatusIN PRODUCTION (Last Updated: 1 month ago)
Factory Lead Time8 Weeks
MountSurface Mount
Mounting TypeSurface Mount
Package / Case18-SOIC (0.295, 7.50mm Width)
Number of Pins18Pins
Operating Temperature-40°C~85°C
PackagingTube
JESD-609 Codee3
Pbfree Codeyes
Part StatusActive
Moisture Sensitivity Level (MSL)3 (168 Hours)
Product Attribute Attribute Value
Number of Terminations18Terminations
Terminal FinishMATTE TIN
Max Power Dissipation500mW
Voltage - Supply4.75V~5.25V
Terminal PositionDUAL
Terminal FormGULL WING
Peak Reflow Temperature (Cel)260
Supply Voltage5V
Frequency3.58MHz
Time@Peak Reflow Temperature-Max (s)30
FunctionDTMF Receiver
Operating Supply Voltage5V
Product Attribute Attribute Value
Power Supplies5V
Number of Circuits1Circuit
Operating Supply Current3mA
Nominal Supply Current3mA
Logic FunctionReceiver
Telecom IC TypeDTMF SIGNALING CIRCUIT
Height Seated (Max)2.65mm
Width7.5mm
Radiation HardeningNo
RoHS StatusROHS3 Compliant
0 Products View Similar

MT8870 Functional Block Diagram

MT8870 Applications

● Wired Robot control via mobile phone keypad.

● Home Automation

● Security Systems

● Receiver system for British Telecom (BT) or CEPT Spec (MT8870D-1)

● Paging systems

● Repeater systems/mobile radio

● Credit card systems

● Remote control

● Personal computers

● Telephone answering machine

 

MT8870 Package

MT8870 Manufacturer

Microchip Technology Inc. is a publicly-listed American corporation that manufactures microcontroller, mixed-signal, analog and Flash-IP integrated circuits. Its products include microcontrollers (PIC, dsPIC, AVR and SAM), Serial EEPROM devices, Serial SRAM devices, embedded security devices, radio frequency (RF) devices, thermal, power and battery management analog devices, as well as linear, interface and wireless products. Its corporate headquarters is located in Chandler, Arizona. 

 

Datasheet PDF

Download datasheets and manufacturer documentation for Microchip Technology MT8870DS1.

MT8870DS1 Documents

Download datasheets and manufacturer documentation for MT8870DS1

Frequently Asked Questions

1.Can't find the DTMF signal decoder MT8870 in PROTUES, how to add this chip?
You can make this chip by yourself in the software, and you can enter it into the software library through software packaging, but you'd better know some of the chip's parameters, otherwise it cannot be simulated.
2.Can MT8870 use 3.3v?
If it is 5V, 3.3V is not allowed. Because at 3.3V, some chips may not work properly. Even if it works normally during the test, the high temperature and low temperature environment may become abnormal.
3.What role does MT8870 play in smart homes?
At the main control station or sub-control station, all control signals are DTMF encoded and then sent out; at the monitoring point, the decoder decodes the DTMF received and performs corresponding control actions according to the decoded content. According to the above requirements, a decoder based on the dedicated DTMF decoding integrated circuit MT8870 is designed.
FAQ
1.Can't find the DTMF signal decoder MT8870 in PROTUES, how to add this chip?
You can make this chip by yourself in the software, and you can enter it into the software library through software packaging, but you'd better know some of the chip's parameters, otherwise it cannot be simulated.
2.Can MT8870 use 3.3v?
If it is 5V, 3.3V is not allowed. Because at 3.3V, some chips may not work properly. Even if it works normally during the test, the high temperature and low temperature environment may become abnormal.
3.What role does MT8870 play in smart homes?
At the main control station or sub-control station, all control signals are DTMF encoded and then sent out; at the monitoring point, the decoder decodes the DTMF received and performs corresponding control actions according to the decoded content. According to the above requirements, a decoder based on the dedicated DTMF decoding integrated circuit MT8870 is designed.

TAGS

Share