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AS2525 数据表(PDF) 22 Page - ams AG |
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AS2525 数据表(HTML) 22 Page - ams AG |
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22 / 26 page ![]() Preliminary AS2525 Rev. 1.3 Page 22 May 1999 Tone Ringer Symbol Parameter Condition Min. Typ. Max. Units F1 F2 F3 Frequency 1 Frequency 2 Frequency 3 770 1025 1280 800 1067 1333 830 1110 1385 Hz Hz Hz t DT Detection Time Initial 100 ms f MIN Min. Detection Frequency 12 13 14 Hz f MAX Max. Detection Frequency 68 70 75 Hz Pacifier Tone Symbol Parameter Condition Min. Typ. Max. Units V PARO Tone Output Level, RO Tone Output Level, LO1/2 RL = 150 Ω RL = 32 Ω 30 300 mV P-P mV P-P f PT Frequency Key entry 1333 Hz t TBD Tone Burst Duration Key entry Acknowledge, terminate PG mode Rejection, invalid key entry 40 140 4x40 ms ms ms t ITP Inter-Tone Pause 80 ms |
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