Rainbow Electronics MAX98089 - Manual (Page 121)

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MAX98089
Low-Power, Stereo Audio Codec
with FlexSound Technology
Applications Information
Typical Operating Circuits
Figures 40 and 41 provide example operating circuits for the ICs. sThe external components shown are the minimum
required for the ICs to operate. Additional components may be required by the application.
Figure 40. Typical Application Circuit Using Analog Microphone Inputs and the Bypass Switch
2.2kI
1kI
1kI
IRQ
1.8V TO
5.5V
10kI
TO MICROCONTROLLER
10MHz TO 60MHz CLOCK INPUT
DIGITAL AUDIO
PORT 1
I 2 C CONTROL
PORT
MICROPHONE
OUTPUT TO
BASEBAND
JACKSNS
HEADSET
MICROPHONE
1FF
1FF
1FF 2.2FF
1FF
HANDSET
MICROPHONE
1FF
1FF
DIGITAL
AUDIO
PORT 2
JACKSNS
BYPASS
SWITCH
INPUT
LRCLKS2
BCLKS2
SDINS2
SDOUTS2
JACKSNS
RECP/RXINP
RECN/RXINN
SPKLP
SPKLN
SPKRP
SPKRN
HPR
HPL
HPSNS
REF
REG
MCLK
BCLKS1
LRCLKS1
SDINS1
SDOUTS1
SDA
SCL
MIC1P/DIGMICDATA
MIC1N/DIGMICCLK
MICBIAS
MIC2P
MIC2N
INA1/EXTMICP
INA2/EXTMICN
INB1
INB2
LINE INPUT 1FF
1FF
1FF
1FF
AGND HPGND SPKRGND SPKLGND C1N HPVSS
1FF
HPVDD C1P DGND
4I–8I
4I–8I
MAX98089
DVDDS1
0.1µF
1.8V TO 3.6V 1.8V TO 3.6V
2.8V TO 5.5V
1.8V
10µF
10µF
1µF 1µF 1µF 1µF 1µF 0.1µF
PVDD DVDD AVDD SPKLVDD SPKRVDD DVDDS2