Neoway WM620 - Figure 3-24 Reference Design of Single-End Input MIC Interface; Figure 3-25 Reference Design for Speaker Differential Output; Figure 3-26 Reference Design for Speaker Single-Ended Output; Table 3-10 MIC Voltage and Current

WM620 Hardware User Guide
Copyright © Neoway Technology Co., Ltd
26
Figure 3-24 Reference design of single-end input MIC interface
Figure 3-25 Reference design for speaker differential output
Figure 3-26 Reference design for speaker single-ended output
Table 3-10 MIC voltage and current
MIC
Min.
Typical
Max.
Unit
MIC voltage
1.75
1.8
1.85
V
WM620
MIC1P
MIC1N
0.1 uF
100 pF
100 pF
EAR_P
EAR_N
Earpiece
32-Ohms
MIC
100 pF
ESD Protect
WM620
33 pF
33 pF
SPK_P
SPK_N
Speaker
8-Ohms
10 pF
10 pF
ESD Protection
WM620
33 pF
SPK_P
SPK_N
Speaker
8-Ohms
10 pF
ESD Protection
GND