BU5814FT1 monolithic remote control transmitter integrated circuit

Published:2011/5/10 1:16:00 Author:Fiona | Keyword: monolithic remote control transmitter | From:SeekIC

BU5814FT1 is a monolithic remote control transmitter integrated circuit.It's widely used in various remote control systems, such as DVD players, televisions, audio equipment. 1.Features BU5814FT1 contains the keys scan pulse generator integrated circuit, the remote control command encoder, emission signal buffer amplifier circuit, transmitting the signal buffer amplifier circuit, test circuit, the user code setting circuit, and other ancillary circuit. 2.pin functions and data BU5814FT1 integrated circuit uses 22-pin dual in-line package.The pin functions and data are shown in Table 1. Table 1 BU5814FT1 integrated circuit's pin functions and data 3.Typical application circuit The infrared remote control transmitter's typical application circuit which is posed by the BU5814FT1 integrated circuit is shown in Figure 1. Figure 1 the typical application circuit of the BU5814FT1 integrated circuit Tip: to determine whether the remote control transmitter IC is damaged, it's available to use multimeter to test the potential of BU5814FT1 (19) feet.Whether the potential has a small jump. If has,it is illustrated that there has coded pulse signal output from the output,the integrated circuit is working properly;on the contrary,the integrated circuit is damaged,it need to replace a new integrated circuit.



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