MT8870DE MT8870 - Integrated DTMF Receiver IC
The MT8870DE is a complete DTMF receiver integrating both the band-split filter and digital decoder functions. The filter section uses switched capacitor techniques or 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.
This item features:
Complete DTMF Receiver
- Low power consumption
Internal gain setting amplifier
Adjustable guard time
- Central office quality
- Backward compatible with MT8870C/MT8870C-1
- New and Authentic Component(s) - MT8870D-1 Integrated DTMF Receiver IC.
- Friendly Note: Be mindful of the many, inexpensive, counterfeits available on the market.
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