GND

GND

U1

PDRV604

+LD_L

1

-LD_L

2

OUT_LDL

3

AGND

4

EN_LD

5

PVSS_LD

6

CN_LD

7

PGND

19

CP_HP

21

PGND

24

Ex_UVP

25

OUT_LDR

26

-LD_R

27

+LD_R

28

CN_HP

8

PVSS_HP

9

EN_HP

10

AGND

11

OUT_HPL

12

-HP_L

13

+HP_L

14

+HP_R

15

-HP_R

16

OUT_HPR

17

NC

18

PVDD_HP

20

CP_LD

22

PVDD_LD

23

C5

1uF

C3

1uF

2

1

C1

1uF

2

1

GND

R4

1R

1

2

C7

10uF

C2

2.2uF

2

1

VSUP

GND

EN_LD

LD_L_OUT

LD_L_IN

EN_HP

C4

1uF

2

1

R3

22k

1

2

R2

3.90k

R12

33.0k

R11

10.0k

C13

22pF

C11

10uF

1

2

C12

330pF

2

1

C6

1uF

R13

33.0k

1

2

C9

470pF

GND

R1

10k

GND

GND

GND

HP_L_OUT

HP_L_IN

R22

30.0k

R21

10.0k

C23

22pF

C21

10uF

1

2

C22

330pF

2

1

R23

33.0k

1

2

GND

GND

C8

1uF

GND

GND

HP_R_IN

HP_R_OUT

R25

30.0k

R24

10.0k

C26

22pF

C24

10uF

1

2

C25

330pF

2

1

R26

33.0k

1

2

+3.3V

GND

LD_L_IN

LD_L_OUT

R15

33.0k

R14

10.0k

C16

22pF

C14

10uF

1

2

C15

330pF

2

1

R16

33.0k

1

2

DRV604

SLOS659 – JANUARY 2010

www.ti.com

APPLICATION CIRCUIT

Single-Ended Input and Output with 3.3x Gain in the Line Section, 3x Gain in the Headphone Section.

14

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