User Manual

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MAX98089
Low-Power, Stereo Audio Codec
with FlexSound Technology
Pin Description (continued)
BUMP
(WLP)
PIN
(TQFN-EP)
NAME FUNCTION
G1 1 SDOUTS2
S2 Digital Audio Serial-Data ADC Output. The output voltage is referenced to
DVDDS2.
G2 55 DVDDS2
S2 Digital Audio Interface Power-Supply Input. Bypass to DGND with a 1FF ca-
pacitor.
G3 54 SDINS2
S2 Digital Audio Serial-Data DAC Input. The input voltage is referenced to
DVDDS2.
G4 53 DVDD
Digital Power Supply. Supply for the digital core and I
2
C interface. Bypass to
DGND with a 1FF capacitor.
G5 50 AVDD
Analog Power Supply. Bypass to AGND with a 1FF capacitor.
G6 48 REF
Converter Reference. Bypass to AGND with a 2.2FF capacitor.
G7 47 AGND Analog Ground
G8 43 MIC2N
Negative Differential Microphone 2 Input. AC-couple a microphone with a series
1FF capacitor.
G9 42 MIC2P
Positive Differential Microphone 2 Input. AC-couple a microphone with a series 1FF
capacitor.
— — EP Exposed Pad (TQFN Only). Connect the exposed pad to the PCB ground plane.