MT8870DE |
RFQ for MT8870DE Required Field |
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| Product | Manufacturers | Pack | D/C |
| MT8870DE | - | DIP18 | 06+ |
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.
Typical Application |
Features |
| • 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 | • 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 |
| Parameter | Symbol | Min | MAX | Units | |
| 1 | DC Power Supply Voltage | VDD | 6 | V | |
| 2 | Voltage on any pin (other than supply) | VI | Vss-0.3 | VDD+0.3 | V |
| 3 | Current at any pin (other than supply) | VI | 10 | mA | |
| 4 | Storage Temperature | TSTG | -65 | +150 | °C |
| 5 | Package Power Dissipation | PD | 500 | mW |
