Tel: 886-2-66296288

Fax:886-2-29174598

URL:http://www.princeton.com.tw

PT2353 V1.2

- 6 -

March, 2006

Satellite + Subwoofer 3-Speaker System Electronics Crossover IC

PT2353

VOLUME ATTENUATION

A PT2353 volume control circuit consists of ladder resistors and analog switches. The Tap for

Loudness Function (LT & RT) is connected to the Step 6 (-20dB). Therefore, the Loudness Function

Effect will be clearly audible when the volume setting is less than -20dB. Please refer to the attenuation

table given below.

Step

Attenuation

Step

Attenuation

0

0

16

-32

1

-2

17

-34

2

-4

18

-36

3

-6

19

-38

4

-8

20

-40

5

-10

21

-42

6

-12

22

-44

7

-14

23

-46

8

-16

24

-48

9

-18

25

-50

10

-20

26

-52

11

-22

27

-54

12

-24

28

-56

13

-26

29

-58

14

-28

30

-60

15

-30

31

∞