MT8889C
Integrated DTMF Transceiver with Adaptive Micro Interface
Overview
| This product is not recommended for new design. The MT8889 is a monolithic DTMF transceiver with call progress filter. It is fabricated in CMOS technology offering low power consumption and high reliability. The receiver section is based upon the industry standard MT8870 DTMF receiver while 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. The MT8889C utilizes an adaptive micro interface, which allows the device to be connected to a number of popular microcontrollers with minimal external logic. |
Typical Applications
- Credit card systems
- Paging systems
- Repeater systems/mobile radio
- Interconnect dialers
- Personal computers
Features & Benefits
- Central office quality DTMF transmitter/receiver
- Low power consumption
- High speed adaptive micro interface
- Adjustable guard time
- Automatic tone burst mode
- Call progress tone detection to -30 dBm
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Ordering
MT8889C Series 5.25 V Open Drain PDM/PWM Output Specialty Interface IC - SSOP-24
| Distributor | SKU | Stock | MOQ | Pkg | |
|---|---|---|---|---|---|
| Microchip Technology Inc. | .. | .. | .. | .. | Buy Now |
| DigiKey | MT8889CN1-ND | .. | Tube | No Stock | |
| Mouser | 494-MT8889CN1 | 1 | Tube | No Stock |
DTMF (Dual Tone Multiple Frequency)-Transceivers | Telephony | Products
| Distributor | SKU | Stock | MOQ | Pkg | |
|---|---|---|---|---|---|
| Microchip Technology Inc. | .. | .. | .. | .. | Buy Now |
| Arrow Electronics | MT8889CS1 | 25 | 1 | .. | Buy Now |
| DigiKey | MT8889CS1-ND | 391 | 1 | Tube | Buy Now |
| Mouser | 494-MT8889CS1 | 163 | 1 | Tube | Buy Now |
Pb Free Dtmf Transceiver 20 Soic .300In T/R Rohs Compliant: Yes |Microchip MT8889CSR1
| Distributor | SKU | Stock | MOQ | Pkg | |
|---|---|---|---|---|---|
| Microchip Technology Inc. | .. | .. | .. | .. | Buy Now |
| DigiKey | MT8889CSR1-ND | .. | Tape & Reel | No Stock |
