SSM2250

Rev. A | Page 11 of 12

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48

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NC

C9

C10

C13

C15

C16

C17

C12

C14

LINE OUT RIGHT

LINE OUT LEFT

NC

MONO OUT

AD1881A

NC = NO CONNECT

NC NC NC NC

NC NC NC

NC

NC

R1

20k

Ω

R5

20k

Ω

R2

100

Ω

R3

1k

Ω

R4

1k

Ω

TO SPEAKER–

TO SPEAKER+

SSM2250

NC

NC

NC

NC

NC

C1

10

μF

C4

10

μF

C3

0.1

μF

C2

10

μF

C7

0.1

μF

C6

10

μF

C5

100

μF

+

+

+

AC CLK

C8

22pF

C23

0.1

μF

C11

22pF

C20

27pF

C22

1

μF

C26

1

μF

C29

1

μF

C31

1

μF

C27

1

μF

C25

1

μF

C24

1

μF

C21

0.1

μF

C16

10

μF

C19

0.1

μF

270pF

270pF

1

μF

1

μF

0.1

μF

1

μF

1

μF

0.047

μF

C28

0.001

μF

C30

1

μF

C32

1

μF

C33

1

μF

Y1

24.576MHz

SMT

SDATA

OUT

BITCLK

SYNC

SDATA

IN 0

RST#

PCBEEP

MONO

PHONE

AUX

LEFT

AUX

IN

R8

47

Ω

R10

10k

Ω

R11

1k

Ω

R12

4.7k

Ω

R14

4.7k

Ω

R17

4.7k

Ω

R19

4.7k

Ω

R18

4.7k

Ω

R15

4.7k

Ω

R13

4.7k

Ω

R9

2k

Ω

R7

20k

Ω

R6

20k

Ω

R16

4.7k

Ω

LINE IN RIGHT

LINE IN LEFT

MIC IN

CD RIGHT

CD GND

CD LEFT

Figure 20. PC99 Compliant Audio System Reference Design