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Digital microphone timing characterstics – Rainbow Electronics MAX98088 User Manual

Page 23

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Stereo Audio Codec

with FLEXSOUND Technology

MAX98088

23

DIGITAL MICROPHONE TIMING CHARACTERSTICS

(V

AVDD

= V

HPVDD

= V

DVDD

= V

DVDDS1

= V

DVDDS2

= +1.8V, V

SPKLVDD

= V

SPKRVDD

= 3.7V, T

A

= +25NC, unless otherwise noted.)

(Note 1)

Figure 2. TDM Audio Interface Timing Diagram (TDM_ = 1, FSW_ = 0)

Figure 3. TDM Audio Interface Timing Diagram (TDM_ = 1, FSW_ = 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

DIGMICCLK Frequency

f

MICCLK

MICCLK = 00

MCLK/8

MHz

MICCLK = 01

MCLK/6

DIGMICDATA to DIGMICCLK
Setup Time

t

SU,MIC

Either clock edge

20

ns

DIGMICDATA to DIGMICCLK
Hold Time

t

HD,MIC

Either clock edge

0

ns

LRCLK (OUTPUT)

BCLK (OUTPUT)

SDOUT (OUTPUT)

SDIN (INPUT)

t

CLKTX

t

HIZOUT

HI-Z

LSB

t

HOLD

t

SETUP

LSB

MSB

MSB

t

CLKSYNC

t

R

t

F

LRCLK (INPUT)

BCLK (INPUT)

SDOUT (OUTPUT)

SDIN (INPUT)

t

CLKTX

t

HIZOUT

HI-Z

LSB

t

HOLD

t

SETUP

LSB

t

SYNCHOLD

MSB

MSB

t

BCLKH

t

BCLKL

t

BCLK

t

SYNCSET

MASTER MODE

SLAVE MODE

t

CLKSYNC

t

BCLKH

t

BCLKL

t

CLKSYNC

t

R

t

F

LRCLK (OUTPUT)

BCLK (OUTPUT)

SDOUT (OUTPUT)

SDIN (INPUT)

MASTER MODE

HI-Z

LSB

MSB

t

SYNCTX

t

ENDSYNC

LSB

MSB

SLAVE MODE

HI-Z

LSB

LSB

MSB

MSB

t

CLKTX

t

HIZOUT

t

HOLD

t

SETUP

t

HOLD

t

SETUP

LRCLK (INPUT)

BCLK (INPUT)

SDOUT (OUTPUT)

SDIN (INPUT)

t

BCLK

t

SYNCTX

t

CLKTX

t

HIZOUT