AD1881A

–21–

REV. 0

APPLICATIONS CIRCUITS

The AD1881A has been designed to require a minimum amount of external circuitry. The recommended applications circuits are

shown in Figure 9. Reference designs for the AD1881A are available and may be obtained by contacting your local Analog Devices’

sales representative or authorized distributor.

RESET

SDATA_OUT

SDATA_IN

SYNC

BIT_CLK

CS0

CS1

EAPD

MODE

DIGITAL

CONTROLLER

10 F

100nF

AFILT1

AFILT2

FILT_L

PHONE_IN

MONO_OUT

LINE_OUT_R

LINE_OUT_L

47k

47k

47k

1 F

24.576MHz

22pF

NP0

22pF

NP0

10 F

TANT

100nF

47nF

100nF

1 F

270pF

NP0

270pF

NP0

FILT_R CX3D

XTL_IN

XTL_OUT

600Z

ANALOG GROUND

DIGITAL GROUND

AD1881A

PC_BEEP

LINE_IN_R

LINE_IN_L

MIC1

MIC2

CD_R

CD_L

CD_GND

VIDEO_L

VIDEO_R

AUX_L

AUX_R

0.33 F

0.33 F

0.33 F

0.33 F

0.33 F

0.33 F

0.33 F

7

36

34

33

27

10k

47

48

1k

100nF

100nF

28

0.33 F

0.33 F

0.33 F

0.33 F

0.33 F

0.33 F

47pF

47

100nF

100nF

100nF

10 F

39

41

47k

1 F

47k

1 F

LNLVL_OUT_L

LNLVL_OUT_R

1 F

1 F

EAPD

NOTE: FOR OPTIMAL PERFORMANCE USE A REGULATED ANALOG POWER SUPPLY.

Figure 9. Recommended One Codec Application Circuit