A6043

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

4 of 4

www.unisonic.com.tw

QW-R110-018.B



TEST CIRCUIT

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UTC A6043

-

-

-

SG

F.C

K.F

SW1

1

2

C1

10μF

R1

1kΩ

C2

3.3μF

C3

1μF

R2

9.1kΩ

R5

560Ω

L

C8

4.7μF

C9

4.7μF

R

R7

3.3kΩ

C10

100μF

LED

SW3

VCO STOP

38kHz

MONITOR

GND

R4

330kΩ

SW2

* POLYSTIROLL CAPACITOR

19kHz ≤ 55dB

38kHz ≤ 55dB

Filter

R3

4.7kΩ

R8

220kΩ

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exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or

other parameters) listed in products specifications of any and all UTC products described or contained

herein. UTC products are not designed for use in life support appliances, devices or systems where

malfunction of these products can be reasonably expected to result in personal injury. Reproduction in

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presented in this document does not form part of any quotation or contract, is believed to be accurate

and reliable and may be changed without notice.