アプリケーションノート 4865

73M1x66B/73M1x22 Low Voltage Transient Protection

筆者: Jeff Sorensen

要約: Data access arrangement (DAA) interface protection prevents other components in the line-side circuitry from being damaged by voltages and currents in excess of their rated limits. Most safety-regulatory agencies require protection that is activated when voltages > 275V occur between the tip and ring connections to the public switched-telephone network (PSTN). This minimum voltage-trip level prevents conducting under worst-case ringing and battery-voltage conditions. However, there are also cases when there are requirements to safeguard the DAA interface against voltages that fall under the high voltage-protection threshold. This article provides guidance on these cases, and highlights the Teridian 73M1866B/73M1966B and 73M1822/73M1922 low-voltage, transient protection, MicroDAA® solutions.

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APP 4865:
アプリケーションノート 4865,AN4865, AN 4865, APP4865, Appnote4865, Appnote 4865