MT8870 IC – (SMD SOIC-18 Package) – Integrated DTMF Receiver IC
The MT8870D/MT8870D-1 is a complete DTMF receiver integrating both the band split 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. External component count is minimized by on chip provision of a differential input amplifier, clock oscillator and latched three-state bus interface
SKU:
RW-02082
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The MT8870D/MT8870D-1 is a complete DTMF receiver integrating both the band split 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. External component count is minimized by on chip provision of a differential input amplifier, clock oscillator and latched three-state bus interface
Features:-
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
Applications:-
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
Specifications:-
Symbol
Parameter
Min
Max
Units
VDD
DC Power Supply Voltage
7
V
VI
Voltage on any pin
VSS-0.3
VDD+0.3
V
II
Current at any pin (other than supply)
10
m A
TSTG
Storage temperature
-65
150
?C
PD
Package power dissipation
500
m W
Package Includes:-
1 x MT8870 IC – (SMD SOIC-18 Package) – Integrated DTMF Receiver IC
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