MT8870 DTMF Receiver

MT8870 DTMF Receiver

Sold by: Techmart BD

৳  75.00

Recommended Dc Power Supply:5.5V
RecommendedOperating Temperature:-40ºC to +85ºC
Power Dissipation:500 mW
Maximum Operating Supply Current:9mA

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SKU: 876376374343 Category:


The MT8870D/MT8870D-1 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 tonepairs 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.


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


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

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