The emitter circuit composed of BA1404

Published:2011/6/25 20:43:00 Author:qqtang | Keyword: emitter circuit | From:SeekIC

BA1404 is the special integrated circuit of FM stereo sound, as the working feature is good, it is also used in wireless control. BA1404 needs a low power supply voltage, its power is also low, and its structure is completed, it needs a few external elements, and finally, it works stably and reliably. The notes of using BA1404 are listed as follows: (1) to keep the frequency feature of the emitter conforming to that of the FM broadcast receiver, we need to fix a pre-emphasizer whose time constant is 50μs in the left and right channel, see as the figure. Figure: The emitter circuit composed of BA1404



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