MT88L70
3 Volt Integrated DTMF Receiver
Overview
| The MT88L70 is a complete 3 Volt, 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. External component count is minimized by on chip provision of a differential input amplifier, clock oscillator and latched three-state bus interface. |
Detailed Block Diagram
Typical Applications
- Paging systems
- Repeater systems/mobile radio
- Credit card systems
- Remote control
- Personal computers
- Telephone answering machine
Features & Benefits
- 2.7 - 3.6 volt operation
- Complete DTMF receiver
- Low power consumption
- Internal gain setting amplifier
- Adjustable guard time
- Central office quality
- Power-down mode
- Inhibit mode
- Functionally compatible with MT8870D
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Ordering
DTMF RX 3.58MHz CMOS 3V 18-Pin PDIP Tube
MT88L70 Series 3.6 V 2 mA Surface Mount Integrated DTMF Receiver - SSOP-20
| Distributor | SKU | Stock | MOQ | Pkg | |
|---|---|---|---|---|---|
| Arrow Electronics, Inc. | MT88L70AN1 | 285 | 1 | .. | Buy Now |
| Arrow Electronics, Inc. | MT88L70AN1 | 605 | 1 | .. | Buy Now |
| Digi-Key | MT88L70AN1-ND | 2,274 | 1 | Tube | Buy Now |
| Mouser | 494-MT88L70AN1 | 1,139 | 1 | Tube | Buy Now |
Telecom Interface ICs Pb Free 3 V Integrated DTMF Receiver - SSOP20
| Distributor | SKU | Stock | MOQ | Pkg | |
|---|---|---|---|---|---|
| Digi-Key | MT88L70ANR1DKR-ND | 256 | 1 | Custom Reel | Buy Now |
| Digi-Key | MT88L70ANR1CT-ND | 256 | 1 | Cut Tape | Buy Now |
| Digi-Key | MT88L70ANR1TR-ND | 1000 | Tape & Reel | No Stock | |
| Mouser | 494-MT88L70ANR1 | 564 | 1 | .. | Buy Now |
MT66L70 Series 3 Volt Integrated DTMF Receiver - SOIC-18
| Distributor | SKU | Stock | MOQ | Pkg | |
|---|---|---|---|---|---|
| Arrow Electronics, Inc. | MT88L70AS1 | 2,187 | 1 | .. | Buy Now |
| Digi-Key | MT88L70AS1-ND | 612 | 1 | Tube | Buy Now |
| Future Electronics | MT88L70AS1-TUBE | 11,281 | 10 | Tube | Buy Now |
| Future Electronics | MT88L70AS1-TUBE | 11,281 | 1 | Tube | Buy Now |
| Mouser | 494-MT88L70AS1 | 676 | 1 | Tube | Buy Now |
Dtmf Rx 3.58MHZ Cmos 3V 18-PIN SOIC T/r
