- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Q) How to connect a digital microphone to CYW20706 chip?
A) The CYW20706 has a I2S /PCM interface block.
See link with block diagram - CYW20706 Product Guide
You can connect a microphone to either of these interfaces.
Schematic for eval board -
CYW920706WCDEVAL Evaluation Board Schematic (PDF)
Pins on chip:
---------------------------------------
I2S_DO/PCM_OUT/P29/P3/P35 -- A8
I2S_CLK/PCM_CLK/P2/P37/P28 -- B7
I2S_WS/PCM_SYNC/P0/P34 -- C8
Review schematic of "CYW920706WCDEVAL Evaluation Board" all connections are on J22 -
You can see more information in - CYW920706WCDEVAL Hardware User Guide.
https://www.cypress.com/file/378381/download
(Section - 9.1) I2S and PCM
Another good refernce on MEMS Microphones can be found on the Infineon website.
AN558
MEMS microphone electrical implementation
-Mike
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Q) How to connect a digital microphone to CYW20706 chip?
A) The CYW20706 has a I2S /PCM interface block.
See link with block diagram - CYW20706 Product Guide
You can connect a microphone to either of these interfaces.
Schematic for eval board -
CYW920706WCDEVAL Evaluation Board Schematic (PDF)
Pins on chip:
---------------------------------------
I2S_DO/PCM_OUT/P29/P3/P35 -- A8
I2S_CLK/PCM_CLK/P2/P37/P28 -- B7
I2S_WS/PCM_SYNC/P0/P34 -- C8
Review schematic of "CYW920706WCDEVAL Evaluation Board" all connections are on J22 -
You can see more information in - CYW920706WCDEVAL Hardware User Guide.
https://www.cypress.com/file/378381/download
(Section - 9.1) I2S and PCM
Another good refernce on MEMS Microphones can be found on the Infineon website.
AN558
MEMS microphone electrical implementation
-Mike
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hi,actually we want to support earphone and microphone simultaneously in our project.But I saw there's only one I2s interface in cyw20706, shall I need to change to other chips?
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
The C7 pin is for I2S_DI or PCM_IN. I think one I2S is enough for your applicaiton.