AD1819B
RESET
FL0
RESET
SDATA_OUT
SDATA_IN
SYNC
SDATA_OUT
SDATA_IN
SYNC
DT0
DIGITAL
CONTROLLER
(ADSP-2181)
DR0
RFS0
SCLK0
BIT_CLK
AD1819B
BIT_CLK
MASTER
CS0
CS1
SPORT0
DV
DD
CHAIN_IN
CHAIN_CLK
XTAL_OUT
XTAL_IN
24.576MHz
22pF
NP0
22pF
NP0
RESET
SDATA_OUT
SDATA_IN
SYNC
AD1819B
SLAVE 1
BIT_CLK
CS0
CS1
CHAIN_IN
CHAIN_CLK
XTAL_OUT
XTAL_IN
Figure 17. Two Codec System Example
AD1819B
2.21k⍀*
V
REFOUT
MIC
INPUT
FB
100nF
NC
100⍀
MIC1**
MIC2
100pF
10nF*
Ӎ
10mV RMS
(mean)
200Hz < FREQUENCY RESPONSE < 5kHz @ –3dB
NOTES:
*MAY NEED TO OPTIMIZE TO SUIT MICROPHONE
**SELECT MIC1 AND MAX GAIN 20dB +12dB for 10mV
RMS MICROPHONE OUTPUT.
Figure 18. Microphone Input
REV. 0
–27–
ADI [ ADI ]
