APPLICATION INFORMATION

TYPICAL CIRCUIT CONNECTION

28

27

26

25

24

23

22

21

20

19

1

2

3

4

5

6

7

8

9

10

PCM2903B

SSPND

XTI

V

DD

DGND

DOUT

DIN

XTO

V

CCP2

AGNDX

V

CCX

D+

D–

MUTE/

PowerDown

C

1

11

12

13

14

D+

D–

V

BUS

DGNDU

HID0

HID1

HID2

SEL0

SEL1

V

CCC

AGNDC

V L

IN

V R

IN

V

COM

18

17

16

15

V

CCP1

V

L

OUT

V

R

OUT

AGNDP

22 W

22 W

V

(3.3V)

DD

1.5k

3

W ´

IC1

1.5kW

GND

V

BUS

1MW

C

2

C

9

C

10

V

(3.3V)

CC

1MW

12MHz

C

5

C

6

C

3

C

4

C

7

C

8

C

11

C

12

LPF,

Amp

LPF,

Amp

S0312-02

Operating Environment

PCM2903B

Figure 40 illustrates a typical circuit connection for a simple application. The circuit illustrated is for information

only. The entire board design should be considered to meet the USB specification as a USB-compliant product.

NOTE:

Figure 40. Self-Powered Configuration

For current information on the PCM2903B operating environment, see the Updated Operating Environments for

PCM270X, PCM290X Applications application report, SLAA374.

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Product Folder Link(s): PCM2903B