| 전자부품 데이터시트 검색엔진 |
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AS2525F 데이터시트(PDF) 22 Page - ams AG |
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AS2525F 데이터시트(HTML) 22 Page - ams AG |
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22 / 28 page ![]() Datasheet AS2525 austriamicrosystems Revision 2.1 Page 21 of 27 DTMF Symbol Parameter Conditions Min. Typ. Max. Units DF Frequency Deviation Deviation of ceramic resonator is not included 1.2 % VMF MF Tone Level at LS (Low Group) Default -4.5 -5.5 -6.5 dBm VMF-RANGE MF Tone Level Range at LS (Low Group) 13 steps -18/-6 dBm ∆VL_H Pre-emphasis, Low to High 2.0 2.6 3.2 dBr VUFC Unwanted Frequency Components 300 Hz....4.3 kHz 4.3 kHz…7 kHz 7 kHz....10 kHz 10 kHz…14 kHz 14 kHz....28.5 kHz 28.5 kHz....40 kHz -40 -46 -52 -58 -70 -80 dBm dBm dBm dBm dBm dBm tTD Tone Duration, Minimum Default 80 82.3 85 ms tITP Inter Tone Pause, Min. Default 80 82.3 85 ms tTR tTR Tone Rise Time Tone Fall Time From 10% to 90% amplitude From 90% to 10% amplitude 5 5 ms ms VCT Comfort Tone Level, RO Relative to LS, 4 steps -36 -18 dBr LD Dialing Symbol Parameter Conditions Min. Typ. Max. Units tDR Dialing Rate Default Option 9.53 10 20 10.5 pps pps t/B Break Period Default Option Option 57 61.2 66 33 63 ms ms ms tM/ Make Period Default Option Option 38 40.8 33 16.5 42 ms ms ms tPDP Pre-Digit Pause 35 ms tIDP Inter-Digit Pause 800 880 ms |
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