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PT2353 V1.2

- 12 -

March, 2006

Satellite + Subwoofer 3-Speaker System Electronics Crossover IC

PT2353

APPLICATION CIRCUIT

/3D

VSS

LOUT

LIN

LT

CL1

CL2

CL3

/SUP

/SDW

/MUP

/MDW

OSC

/PK

3D_LED

VDD

ROUT

RIN

RT

CR1

CR2

CR3

C2

REF

C1N

C1P

SOUT

PO

100K

33K

10uF

10uF

100uF

C2

C1

u33

3D

/SUP

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

2K2

220

C

C

C

C

/SDW

/MUP

/MDW

Power Key

100K

3D LED

100uF

2K2

220

100K

8n2

10uF

1K

BAV99

10uF

100K

8n2

u33

1K

2u2

BAV99

10uF

100K

*

L OUT

VDD 9V

VDD 9V

VDD 9V

R OUT

VDD 9V

R IN

REF

REF

REF

S OUT

L IN

**

**

**

**

Notes:

Please refer to the PT2353 Crossover Frequency Response Curve for the values of C, C1, and C2.

Please refer to Power Control (PO) Section of this document.

** For input port high voltage pulse protection.

PT2353