TC9153P electronic volume control IC

Published:2011/4/26 22:34:00 Author:TaoXi | Keyword: electronic volume, control IC | From:SeekIC

The TC9153P is designed as one kind of C(2)MOS Tsz volume control integrated circuit, it can be used in the audio equipment to control the electronic volume . 1.TC9153P circuit block diagram and pin functions The TC9153P is composed of the clock oscillation circuit, conversion circuit, electronic switch circuit, 6-bit and 7-bit circuit.etc, the TC9153P circuit block diagram and pin functions is as shown: Table 1. The TC9153P circuit block diagram and pin functions. The TC9153P integrated circuit is in the 16-pin dual in-line package, the operating voltage of every pin is as shown in table 1. Table 1. The operating voltage of TC9153P. 2.TC9153P main electrical parameters The TC9153P IC supply voltage range is 5 to 12V; in the condition of Vcc=l2V, Vss=0V, Ta=25 ℃, the electrical parameters are as shown in table 1. Both of the IC's positive and negative (+,-) or single power supplier can supply power: as a result of the C (2) COM structure, this device has wide operating voltage range and low current consumption (Vcc=5-12V，IDD=1-3mA). 3.TC9153P typical application crcuit The TC9153P can be used with the microprocessor TC915OP, so the TC9153P and TC915OP has the same typical application circuit. 4.The circuit working process The TC9153P controls the attenuation by the internal oscillator and the increase / decrease pin, control range is 0 to 68dB and divide into 32 levels (per 2dB). Table2. TC9153Pmainelectricalparameters 5.Fault tips If there is little or no volume, you can use a 10μF capacitance to link the pin-3 and pin-6 of TC9153P, if the voice return to normal, means the TC9153P has interal damage.



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