The Source:Texaslnstrurnents only external parts which are nonnally needed are one capacitor and one po- tenttorncter.
filters, power stages and control electronics. These are audto amplifiers with butlt- in low-pass filters, designed to drive miniature loudspeakers. T H1S series of integratcd ctrcutts from Texas lnstruments comprises four members: the TLC2470I, TLC24711. Apart from the IC, only a handful of passive parts is required. Practically everything is contained in these ICs to supply apower of about 500 milliwatts (peak) to a miniature 8-ohm loudspeaker.
TLC247x DIFFERENTIAL AUDIO FILTEREDAMPLIFIERS The TLC247x family from Texas Instruments is aseries of integrated circuits specifically designed to make driving a loudspeaker with an analogue or a pulse-width modulated signal as simple as possible. APPLICATION NOTE The conte nt of this note is based on information received from manufacturers in the electrical and electronics industries, or their representatives, and does not imply practical experience by Elektor Electronics or its consultants.
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