UT3222

Preliminary

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

7 of 7

www.unisonic.com.tw

QW-R502-986.b



TYPICAL APPLICATION CIRCUIT

EN

1

2

3

4

+

+

-

-

C3

(Note 1)

C1

C1+

V+

C1-

C2+

C2-

5

+

-

C2

6

V-

7

8

9

10

-

+

C4

DOUT2

RIN2

ROUT2

20

19

PWRDOWN

Powerdown

+

-

18

GND

17

DOUT1

16

RIN1

ROUT1

15

14

NC

13

DIN1

12

DIN2

11

NC

2. Resistor values shown are nominal.

3. NC: No internal connection.

4. Nonpolarized ceramic capacitors are acceptable. If polarized tantalum or electrolytic capacitors are used, they should be

connected as shown.

Table1. Typical Operating Circuit and Capacitor Values

C1 (µF)

C2, C3, C4 (µF)

3.0~3.6

0.22

0.22

0.22

3.15~3.6

0.1

0.1

0.1

4.5~5.5

0.047

0.33

0.047

3.0~5.5

0.22

1.0

0.22

UTC assumes no responsibility for equipment failures that result from using products at values that

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

whole or in part is prohibited without the prior written consent of the copyright owner. The information

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.