Part Number: PCMD3140-Q1 Other Parts Discussed in Thread: PCMD3140 Tool/software: I would like to operate the device with the FSYNC frequency slightly (~1-2%) off 96 kHz to synchronize with external devices. Will this pose a problem for the internal operation…
Dear Jeff:
We tried to reconnect wires between the PDM microphone and the EVB and reconfigure PPC3 software and test again.
It works and we can record correct voice by using external PDM microphone based on the 16 bits,I2S and 48KHz sampling rate.
PCMD3140…
Part Number: PCMD3140 Hi,
I was wondering what would happen in the cases where the BCLK or GPIO inputs were left floating/had no driving sources?
Thank you,
Matthew Bavier
Part Number: PCMD3140 Hi team,
if write only page 0 register after exiting sleep mode, The device can correctly power up?
the device reqire for writing page2-4？
regards,
Shoo
Part Number: PCMD3140 Hey all,
im trying to use the biquad filters in the pcmd3140, but the registers that are holding the coefficients seem read only.
What i do:
- POR
- Write 00 00 to switch to page 0
- Write 02 81 to wake the device from sleep
- Wait…
Part Number: PCMD3140 Hello,
Related to previous question I asked here ( E2E ) , I want to know the drive strength value for this chip.
I understand that this is not configurable, and we have a workaround to solve the issue but for future reference we…
Part Number: PCMD3140 Other Parts Discussed in Thread: PCMD3180 Dear Ti member,
I'm using the PCMD3140 EVT board to porting the linux driver on Android.
Should I need any other modify on dts or driver like below PCMD3180? [FAQ] PCMD3180: Is there…
Part Number: PCMD3140 I am trying to get a PCMD3140 working with two PDM mics connected to PDMDIN1_GPI1 (one mic has the select high and one has select low) and both getting their clocks from PDMCLK_GPO1. The output is configured as I2S. I am able to…
Part Number: PCMD3140 For the AVDD supply, the datasheet shows it can be supplied by either 1.8V or 3.3V. Is one preferred over the other? When used with digital mic voltage levels from 0 to 1.8V, is there any performance difference based on the AVDD…
Part Number: PCMD3140 Looking at the PCMD3140, it says it supports simultaneous sampling of up to four digital channels for the PDM microphone input, and can convert and output to I2S. How would that work for I2S? Doesn't I2S only have 2-channel capability…
