MT8880C
Integrated DTMF Transceiver with Motorola Compatible Processor Interface
Overview
| This product is not recommended for new design. The MT8880 is a monolithic DTMF transceiver with call progress filter. It is fabricated in ISO 2 -CMOS technology, which provides low power dissipation and high reliability. The DTMF receiver is based upon the industry standard MT8870 monolithic DTMF receiver; the transmitter utilizes a switched capacitor D/A converter for low distortion, high accuracy DTMF signalling. Internal counters provide a burst mode such that tone bursts can be transmitted with precise timing. A call progress filter can be selected allowing a microprocessor to analyze call progress tones. A standard microprocessor bus is provided and is directly compatible with 6800 series microprocessors. |
Detailed Block Diagram
Typical Applications
- Credit card systems
- Paging systems
- Repeater systems/mobile radio
- Interconnect dialers
- Personal computers
Features & Benefits
- Complete DTMF transmitter/receiver
- Central office quality
- Low power consumption
- Microprocessor port
- Adjustable guard time
- Automatic tone burst mode
- Call progress mode
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Ordering
DTMF TXRX 3.58MHz CMOS 5V 24-Pin SSOP Tube
| Distributor | SKU | Stock | MOQ | Pkg | |
|---|---|---|---|---|---|
| Microchip Technology Inc. | .. | .. | .. | .. | Buy Now |
| DigiKey | MT8880CN1-ND | .. | Tube | No Stock |
ROHS3Compliant Lead Free DUAL GULL WING Telecom IC DTMF Transceiver -40C~85C 3.58MHz 7.5mm 1W
Dtmf Txrx 3.58MHZ Cmos 5V 20-PIN SOIC T/r
| Distributor | SKU | Stock | MOQ | Pkg | |
|---|---|---|---|---|---|
| Microchip Technology Inc. | .. | .. | .. | .. | Buy Now |
| DigiKey | MT8880CSR1-ND | .. | Tape & Reel | No Stock |
