AD1819B
APPLICATIONS CIRCUITS
The AD1819B has been designed to require a minimum amount
of external circuitry. The recommended applications circuits are
shown in Figures 15–18. Reference designs for the AD1819B
are available and may be obtained by contacting your local
Analog Devices’ sales representative or authorized distributor.
Example shell programs for establishing a communications path
between the AD1819B and an ADSP-21xx DSP are also available.
+5AV
+5AV
+5DV
DD
+5DV
DD
DD
DD
10F TANT
10F TANT
10F TANT
10F TANT
100nF
100nF
100nF
100nF
AV
AV
AV
AV
DV
DV
DV
DV
DD2
SS2
DD1
SS
SS1
DD1
SS2 DD2
100nF
1.37k⍀
4.99k⍀
PC_BEEP
100nF
1F
LINE_IN_R
LINE_IN_L
1F
1F
RESET
1F
MIC1
MIC2
SDATA_OUT
SDATA_IN
SYNC
DIGITAL
CONTROLLER
1F
1F
CD_R
BIT_CLK
1F
1F
CD_L
AD1819B
CD_GND
DV
DD
VIDEO_L
VIDEO_R
1F
1F
1F
1F
CS0
CS1
1F
AUX_L
AUX_R
47
CHAIN_IN
48
CHAIN_CLK
1F
1F
PHONE_IN
7
MONO_OUT
36
LINE_OUT_R
LINE_OUT_L
47k⍀
V
V
47k⍀ 47k⍀
AFILT1 AFILT2
FILT_L FILT_R CX3D RX3D
XTAL_IN
XTAL_OUT
REFOUT
28
REF
27
34
33
100nF
47nF
24.576MHz
270pF
NP0
270pF
NP0
2.25V
DC
1F
1F
10F
TANT
22pF
NP0
22pF
NP0
100nF
600Z
DIGITAL GROUND
ANALOG GROUND
Figure 15. Recommended One Codec Application Circuit
REV. 0
–25–
ADI [ ADI ]
