| 摘要 |
<p>Receiver signal strength indicator, having an automatic outputting detection circuit, can immediately detect whether its output terminals are connected to a specific apparatus or not. The RSSI comprises an RSSI signal generator, an A/D converter, an automatic outputting detection circuit and at least one output terminal. The automatic outputting detection circuit includes a current detection circuit and an interruption signal generator. When a current passes through the output terminal, the current detection circuit detects the occurrence of the current and generates a push signal. The push signal triggers the interruption signal generator, which in turn generates an interruption signal, and then an RSSI signals are output from the RSSI signal generator due to the interruption signal. The A/D converter converts the RSSI signal into an analog signal. Afterward, the analog signal is output to the exterior through the output terminal.</p> |
