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Figure 22. Example of a Single-Ended MIC Connection without an LC Filter
Note:
*Z2 is from 200Hz to 4kHz. For more details, refer to Table 18 Electrical Characteristics of MIC.
The capacitor C1 is highly recommended to eliminate TDMA noise and must be close to the
microphone.
The following table lists the recommended components to use in implementing a single‐ended MIC
connection without an LC filter.
Component
C1
C2
L1
Speaker SPKP ad SPKN
Differential Connection
In a differential connection, simply connect both SPKP and SPKN to the speaker.
WA_DEV_W228_PTS_002
Description/Details
12pF to 33pF
Rev 001
Product Technical Specification &
Customer Design Guidelines
Notes
needs to be tuned depending on the design
needs to be tuned depending on the design
needs to be tuned depending on the design
Page 60 of 108
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