All Questions
Tagged with i2s audio-codec
11
questions
1
vote
2
answers
61
views
Synchronizing multiple I2S codecs on stm32f405
I am designing an audio device that requires two CODECs to be connected to the MCU - two stereo outputs, two stereo inputs. When working with a single codec, no problems with synchronization occur ...
- 1,109
0
votes
0
answers
17
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I2S Interface between Bluetooth Module and CODEC
I need to interface my CYBT-343026-01 bluetooth module to the AK4619 CODEC via I2S interface.
The problem is that CYBT-343026-01 only provides BICK and LRCLK, but it doen't provide MCLK which is also ...
- 145
0
votes
0
answers
259
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Can I connect multiple different devices via a single I2S interface?
I am using a microcontroller with only one I2S interface. I am using MAX98357A which has 1 sound chip. There is 1 microphone, SPH0645. Can I connect these ICs to the same line provided that I cannot ...
- 51
1
vote
1
answer
1k
views
CS8406 Audio Interface (I2S->I2C)
I'm attempting to interface a MEMS Microphone with an ESP32 through a CS8406.
I am aware that the ESP32 has a well-documented I2S hardware interface however for my project I cannot use it. (It's going ...
- 42
0
votes
1
answer
225
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Problems interfacing PMODI2S2 with STM32H7
Back at it again, however this time not sure what the problem is.
I have a PMODI2S2 device that is an Audio codec. It interfaces with the STM32H753ZI Microcontroller VIA SPI/I2S.
The problem that is ...
- 1,421
0
votes
0
answers
59
views
How to choose between different equivalent PLL/divider configurations?
If there are multiple ways to get the required clocks for a given CODEC, how do you choose between them?
For example, if a CODEC can accept 64fs, 128fs, 256fs, and has an internal PLL that can ...
- 28.9k
1
vote
0
answers
343
views
How to interface a microphone to an I2S input to use HFP
For my group's SDP/Capstone we are doing a bluetooth headset of sorts. We are using a CYW20706 SoC from Cypress. Specifically, we are using a this CYBT-343026-01 Cypress module whch includes that ...
- 11
0
votes
0
answers
568
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WM8960 on Pi detected but not working
I am trying to create custom board with WM8960 IC with Raspberry Pi. I am able to use Wolfson drivers for pi to detect the IC via I2C but I am not able to play or record any audio. This is the ...
- 19
1
vote
3
answers
4k
views
I2S TDM channels maximum bandwidth
Does I2S support sending multiple mic (around 20) channel data? If no, what is the limiting factor in supporting multiple mics?
Also, is there any way to send multiple channel data from different ...
- 21
1
vote
1
answer
429
views
I2S Clock in Audio Codec on dev board, how is this working?
I'm using a dev board, the keil mcb4300. In the schematic, the audio codec UDA1380HN has the BCKI going to the SYSCLOCK.
According to the codec data sheet:
BCKI: bit clock input
SYSCLOCK: system ...
- 397
0
votes
1
answer
1k
views
I2S Connections - MEMS Digital Microphone, CODEC, and Raspberry Pi Zero W
I have a MEMS Digital Microphone with PDM output. I am planning to use this:
http://www.st.com/content/ccc/resource/technical/document/datasheet/57/af/88/31/7b/59/4f/77/DM00111225.pdf/files/...
- 301