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MT8870 Complete DTMF Receiver Decoder

MT8870 Complete DTMF Receiver Decoder
Product Code: IC MT8870
Availability: 9
Price: 8,000Riel.‌‌‌រ
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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

 

·         Low power consumption

·         Internal Gain setting amplifier

·         Adjustable guard time

·         Power-down mode | Inhibit mode

 

Packing Slip

 

1 x MT8870 Complete DTMF Receiver Decoder

 

Reference

 

ü  MT8870 Datasheet

 

DTMF Receiver Reference Schematic:

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