PA3427

Preliminary

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

7 of 7

www.unisonic.com.tw

QW-R502-357.b



APPLICATION INFORMATION

1. Shutdown Mode Operating

INPUT

AMPLIFIER

HP/ LINE

SE/ BTL

SHUTDOWN

INPUT

OUTPUT

X

X

L

X

MUTE

L

L

H

LINE

BTL

L

H

H

LINE

SE

H

L

H

HEADPHONE

BTL

H

H

H

HEADPHONE

SE

X: Don’t care

L: Low

H: High

Gain setting is determined by GAIN0 and GAIN1. The gains listed in the next table are realized by changing the

the gain setting as we can see listed in the next table.

GAIN0

GAIN1

SE/ BTL

6

0

0

0

90

10

0

1

0

70

15.6

1

0

0

45

21.6

1

1

0

30

4.1

X

X

1

-

X: Don’t care

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.