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 tone-pairs into a 4-bit code.
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
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
Additional information
| Origin | CN(Origin) |
|---|---|
| Model Number | MT8870DE |
| Package/Case | PDIP-18 |
| Minimum Supply Voltage (V) | 5 |
| Maximum Supply Voltage (V) | 5 |
| Product Type | MT8870DE CMOS Low Power DTMF DECODER Receiver IC |
| Operating Temperature Range (°C) | –55° C to +125° C |
| Mounting Type | Through Hole |
| Condition | New |
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