A 100M 1553b send and control bus analog front end
An analog front-end and bus technology, which is applied in the analog front-end field of 100M 1553B transmission and control bus, and can solve problems such as amplification
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[0015] In order to make the purpose, content and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0016] This embodiment proposes a 100M 1553B transmission and control bus analog front-end, its principle block diagram is as follows figure 1 shown. The analog front-end works in half-duplex mode, and both the receiving channel and the transmitting channel are implemented on the same set of analog front-end. Among them, the analog front-end includes a band-pass filter, an electronic switch, a DAC signal adjustable gain amplifier, a smoothing filter, an isolation transformer, a limiting circuit, a first-stage amplifier, an anti-aliasing filter, an ADC signal adjustable gain amplifier, A second stage amplifier and a third stage amplifier.
[0017] The operating frequency of the analog front end of this embodiment is 20...
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