Ameba-D User Manual
User Manual All information provided in this document is subject to legal disclaimers. © REALTEK 2019. All rights reserved.
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Tie the L/R of two digital mic-phones to ground and VDD respectively if a stereo mic-phone is needed. The two mic-phones will share the
DMIC_DATA according to rising/falling edge.
Ameba-D
DMIC_CLK
VDD
Digital MIC
CLOCK
GND
DMIC_DATA
DATA
L/R
VDD
Fig 17-8 Digital MIC mono mode connection
Ameba-D
DMIC_CLK
VDD
Digital MIC
CLOCK
GND
DMIC_DATA
DATA
L/R
VDD
Digital MIC
CLOCK
GND
DATA
L/R
VDD
Fig 17-9 Digital MIC stereo mode connection
Fig 17-10 shows the mono PDM format, and the stereo PDM format is shown in Fig 17-11.
CLK
DAT A
DAT A (R)
DAT A (R)
DAT A (R)
Fig 17-10 Mono PDM format
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2019-05-15 10:08:03