Data Sheet

590
Atmel | SMART SAM D21 [DATASHEET]
Atmel-42181G–SAM-D21_Datasheet–09/2015
Figure 28-9. Codec Application Block Diagram
Figure 28-10.PDM Microphones Application Block Diagram
I
2
S
Word Select
Serial Data Out
Serial Data In
EXTERNAL
AUDIO
CODEC
IMCKn
IFSn
ISD0
ISD1
Serial Clock
Master Clock
ISCKn
Right Time Slot
Serial Clock
Word Select
Serial Data Out
Serial Data In
Dstart
Dend
Left Time Slot
EXTERNAL PDM
MICROPHONE
for Left
Channel
EXTERNAL PDM
MICROPHONE
for Right
Channel
Serial Data In
64 fs Serial Clock
Serial Clock
Serial Data In
I
2
S
SCKn
FSn
SDm
MCKn
VDD
GND
L/RSEL
L/RSEL
LeftRight LeftRight LeftRight LeftRight Right