M-88L70 CLARE [Clare, Inc.], M-88L70 Datasheet
M-88L70
Related parts for M-88L70
M-88L70 Summary of contents
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... Portable TAD • Remote data entry • The M-88L70 is a full DTMF Receiver that integrates both bandsplit filter and decoder functions into a single 18-pin DIP or SOIC package. Manufactured using CMOS process technology, the M-88L70 offers low power consumption (18 mW max), precise data handling and 3V operation ...
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... The comparator outputs provide full-rail logic swings at the frequencies of the incoming tones. Decoder The M-88L70 decoder uses a digital counting technique to determine the frequencies of the limited tones and to verify that they correspond to standard DTMF frequen- cies. A complex averaging algorithm is used to protect against tone simulation by extraneous signals (such as voice) while tolerating small frequency variations ...
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... Design information for guard time adjustment is shown in Figure 5. Input Configuration The input arrangement of the M-88L70 provides a dif- ferential input operational amplifier as well as a bias source ( bias the inputs at mid-rail. Provision is ...
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... M-88L70 Absolute Maximum Ratings Parameter Symbol Power supply voltage Voltage on any pin V dc Current on any pin I DD Operating temperature T A Storage temperature T S Note: Exceeding these ratings may cause permanent damage. Functional operation under these condi- tions is not implied. ...
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... QStD t - 200 PTE t - 500 PTD f 3.5759 3.5795 3.5831 CLK 3 -40˚C to +85˚ 3.579545 MHz CLK load. www.clare.com M-88L70 UNITS TEST CONDITIONS - nA V < V < kHz - dB -3.0V < V < 3. MHz - 100 ...
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... M-88L70 Figure 4 Single-Ended Input Configuration Figure 6 Timing Diagram Explanation of Events (A) Tone bursts detected, tone duration invalid, outputs not updated. (B) Tone #n detected, tone duration valid, tone decoded and latched in outputs. (C) End of tone #n detected, tone absent duration valid, outputs remain latched until next valid tone. ...
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... D .880 E .300 E1 .240 e .100 BSC ec 0˚ L .115 Inches Min A .0926 A1 .0040 b .013 D .4469 E .2914 e .050 BSC H .394 L .016 www.clare.com M-88L70 Tolerances Metric (mm) Max Min Max .210 5.33 .38 .022 . 36 .56 .070 1.1 1.7 .014 . .20 .36 .920 23.35 23.37 .325 7.62 8.26 .280 6.10 7.11 2.54 BSC 15˚ 0˚ 15˚ .150 2 ...
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... The products described in this document are not intended for use in medical implantation or other direct life support applications where malfunction may result in direct phys- ical harm, injury or death to a person. ...