Zarlink?s complete line of DTMF products offer 3V or 5V operation, power-down modes, call progress tone detection, parallel and serial microcontroller interface, adjustable tone guard-time and tone detect dynamic range options.
| Part Number | Part Name | Product Preview | Data Sheet | Product Information |
| MT3171B | Wide Dynamic Range (50 dB) DTMF Receiver with Delayed DTMF Tone Detection and Power-Down Mode (4.19 MHz Xtal) | |
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| MT3270B | Wide Dynamic Range (50 dB) DTMF Receiver with Early DTMF Tone Detection (4.19 MHz Xtal) | |
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| MT3271B | Wide Dynamic Range (50 dB) DTMF Receiver with Delayed DTMF Tone Detection (4.19 MHz Xtal) | |
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| MT3370B | Wide Dynamic Range (50 dB) DTMF Receiver with Early DTMF Tone Detection and Power-Down Mode (4.19 MHz Xtal) | |
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| MT3371B | Wide Dynamic Range (50 dB) DTMF Receiver with Delayed DTMF Tone Detection and Power-Down Mode (4.19 MHz Xtal) | |
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| MT8870D | Integrated DTMF Receiver with Enhance Sensitivity | |
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| MT88L70 | 3 Volt Integrated DTMF Receiver | |
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| ZL49010 | Wide Dynamic Range (50 dB) DTMF Receiver with Early DTMF Tone Detection and Power-Down Mode (3.58 MHz Xtal) | |
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| ZL49011 | Wide Dynamic Range (50dB) DTMF Receiver with Delayed DTMF Tone Detection and Power-Down Mode (3.58 MHz Xtal) | |
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| ZL49020 | Wide Dynamic Range (50dB) DTMF Receiver with Early DTMF Tone Detection (3.58 MHz Xtal) | |
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| ZL49021 | Wide Dynamic Range (50dB) DTMF Receiver with Delayed DTMF Tone Detection (3.58 MHz Xtal) | |
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| ZL49031 | Wide Dynamic Range (50dB) DTMF Receiver with Delayed DTMF Tone Detection and Power-Down Mode (3.58 MHz Xtal) | |
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| Part Number | Part Name | Product Preview | Data Sheet | Product Information |
| MT8880C | Integrated DTMF Transceiver with Motorola Compatible Processor Interface | |
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| MT8885 | Integrated DTMF Transceiver with Power-Down and Adaptive Micro Interface | |
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| MT8888C | Integrated DTMF Transceiver with Intel Micro Interface | |
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| MT8889C | Integrated DTMF Transceiver with Adaptive Micro Interface | |
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| MT88L85 | 3 V Integrated DTMF Transceiver with Power-Down and Adaptive Micro Interface | |
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| MT88L89 | 3 V Integrated DTMF Transceiver with Adaptive Micro Interface | |
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