Datasheet

Maxim Integrated │ 162
MAX98090 Ultra-Low Power Stereo Audio Codec
www.maximintegrated.com
Figure 53. Typical Application Circuit with Analog Microphone Inputs and Receiver Output
Applications Information
Typical Application Circuits
Figures 53 and 54 are two example application circuits for the device. The external components shown are the minimum
required for the device to operate. Additional application specific components might be required.
IRQ
1.8V
10k
Ω
CONTROLLER
INTERUPT
I
2
C INTERFACE
SDA
SCL
1µF
CPVSS
1
µF
CPVDD C1N
1µF
C1P
HPGND DGND SPKLGND SPKRGNDAGND
MAX98090
BCLK
LRCLK
SDIN
SDOUT
DIGITAL AUDIO
INTERFACE
PORT (DAI)
2.2k
Ω
ANALOG
SINGLE-ENDED
MICROPHONE
1µF
1
µ
F
ANALOG
DIFFERENTIAL
MICROPHONE
1µF
1
µF
IN1/DMD
IN2/DMC
IN3
IN4
LINE INPUT/
EXTERNAL
MICROPHONE
1µF
1
µF
IN5*
IN6*
10µF
1.8V 1.2V
0.1µF 1µF
1µF
3.7V
10µF 1µF
1µF1µF
AVDD DVDD SPKLVDD* SPKLVDD*DVDDIOHPVDD
MCLK
MASTER CLOCK
(10MHz TO 60MHz)
1µF
2.2µF
V
BIAS
REF
4Ω/
8Ω
SPKLP
SPKLN
4Ω/
8Ω
SPKRP
SPKRN
16Ω/
32Ω
RCVP/LOUTL
RCVN/LOUTR
HPR
HPL
MICBIAS
1k
Ω
MICBIAS
1k
Ω
RECEIVER/
LINE OUTPUT
(RECEIVER
BTL MODE)
LEFT
SPEAKER
OUTPUT
RIGHT
SPEAKER
OUTPUT
HEADPHONE
OUTPUT JACK
HPSNS
2.2kΩ
1µF
MICBIAS
MICBIAS
JACKSNS
*IN5 AND IN6 ARE WLP PACKAGE ONLY. SPKLVDD/SPKRVDD ARE TITLED SPKVDD ON THE WLP PACKAGE (BYPASS EACH SPKVDD AS SHOWN).