User Manual

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MAX98089
Low-Power, Stereo Audio Codec
with FlexSound Technology
Figure 4. Digital Microphone Timing Diagram
I
2
C TIMING CHARACTERISTICS
(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)
1/f
MICCLK
t
HD,MIC
t
SU,MIC
t
HD,MIC
t
SU,MIC
LEFT RIGHT LEFT RIGHT
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Serial-Clock Frequency f
SCL
Guaranteed by SCL pulse-width low and
high
0 400 kHz
Bus Free Time Between STOP and
START Conditions
t
BUF
1.3
Fs
Hold Time (Repeated) START
Condition
t
HD,STA
0.6
Fs
SCL Pulse-Width Low t
LOW
1.3
Fs
SCL Pulse-Width High t
HIGH
0.6
Fs
Setup Time for a Repeated START
Condition
t
SU,STA
0.6
Fs
Data Hold Time t
HD,DAT
R
PU
= 475I, CB = 100pF, 400pF
0 900 ns
Data Setup Time t
SU,DAT
100 ns
SDA and SCL Receiving Rise Time t
R
(Note 10)
20 +
0.1C
B
300 ns
SDA and SCL Receiving Fall Time t
F
(Note 10)
20 +
0.1C
B
300 ns
SDA Transmitting Fall Time t
F
R
PU
= 475I, C
B
= 100pF, 400pF (Note 10)
20 +
0.05C
B
250 ns
Setup Time for STOP Condition t
SU,STO
0.6
Fs
Bus Capacitance C
B
Guaranteed by SDA transmitting fall time 400 pF
Pulse Width of Suppressed Spike t
SP
0 50 ns