User Manual
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MAX98089
Low-Power, Stereo Audio Codec
with FlexSound Technology
Note 1: The IC is 100% production tested at T
A
= +25NC. Specifications over temperature limits are guaranteed by design.
Note 2:
Analog supply current = I
AVDD
+ I
HPVDD
. Speaker supply current = I
SPKLVDD
+ I
SPKRVDD
. Digital supply current = I
DVDD
+ I
DVDDS1
+ I
DVDDS2
.
Note 3: Clocking all zeros into the DAC.
Note 4: Dynamic range measured using the EIAJ method. -60dBFS, 1kHz output signal, A-weighted and normalized to 0dBFS.
f = 20Hz to 20kHz.
Note 5: Gain measured relative to the 0dB setting.
Note 6: The filter specification is accurate only for synchronous clocking modes, where NI is a multiple of 0x1000.
Note 7: 0dBFS for DAC input. 1V
P-P
for INA/INB inputs.
Note 8: LRCLK may be any rate in the indicated range. Asynchronous or noninteger MCLK/LRCLK ratios may exhibit some full-
scale performance degradation compared to synchronous integer related MCLK/LRCLK ratios.
Note 9: In master-mode operation, the accuracy of the MCLK input proportionally determines the accuracy of the sample clock rate.
Note 10: C
B
is in pF.
Figure 5. I
2
C Interface Timing Diagram
Power Consumption
(V
AVDD
= V
PVDD
= V
DVDD
= V
DVDDS1
= V
DVDDS2
= 1.8V, V
SPKLVDD
= V
SPKRVDD
= 3.7V, MAS = 0.)
I
2
C TIMING CHARACTERISTICS (continued)
(V
AVDD
= V
PVDD
= V
DVDD
= V
DVDDS1
= V
DVDDS2
= 1.8V, V
SPKLVDD
= V
SPKRVDD
= 3.7V, T
A
= +25NC, unless otherwise noted.)
(Note 1)
SCL
SDA
t
R
t
F
t
BUF
START
CONDITION
STOP
CONDITION
REPEATED START CONDITION
START CONDITION
t
SU,STO
t
HD,STA
t
SU,STA
t
HD,DAT
t
SU,DAT
t
LOW
t
HIGH
t
HD,STA
t
SP
MODE
I
AVDD
(mA)
I
PVDD
(mA)
I
SPKVDD
+
I
SPKLVDD
(mA)
I
DVDD
(mA)
I
DVDDS1
+
I
DVDDS2
(mA)
POWER
(mW)
DYNAMIC
RANGE (dB)
Playback to Headphone Only
DAC Playback 48kHz Stereo HP
DAC ª HP
Low power mode, 24-bit, music
filters, 256Fs
1.25 0.47 0.00 1.35 0.01 5.55 97
DAC Playback 48kHz Stereo HP
DAC ª HP
Low power mode, 24-bit, music
filters, 256Fs, 0.1mW/channel,
R
HP
= 32I
1.25 1.81 0.00 1.56 0.01 8.32 97