Smart Module Series
SA800U-WF_EVB_User_Guide 41 / 63
EAR_P
EAR_N
WCD9341
U0403
U0401A
C1
C2
C3
33 pF
100 pF
100 pF
Figure 34: Reference Design for Earphone Interface
U0403
Figure 35: Earphone
4.8.4. Microphone Interfaces
SA800U-WF EVB provides four differential microphone inputs for microphone interfaces. The following
figures show a reference circuit design for microphone interfaces.
MIC _P
MEMS
R2
R1
C2
MIC_N
C1
MIC_BIAS
1
2
3
4
F1
D1
OUT
GND
GND
VDD
C4
WCD9341
U0401A
33 pF
0R
0R
33 pF
100 nF
Figure 36: Reference Design for Microphone Interfaces
Содержание SA800U-WF
Страница 1: ...SA800U WF EVB User Guide Smart Module Series Version 1 0 Date 2022 06 23 Status Released...
Страница 13: ...Smart Module Series SA800U WF_EVB_User_Guide 12 63 Figure 2 Bottom View Figure 2 Bottom View...
Страница 62: ...Smart Module Series SA800U WF_EVB_User_Guide 61 63 1 2 3 4 5 6 7 Figure 65 Firmware Upgrade Steps...