Hi Deveon,
Thanks for your reply.
I hope this COEFFICIENT CALC will help us during Board bring up / Audio debug.
I need an approximate Power consumption value for CODEC with 8ohm Spkr driving condition (SPKR VDD=5V) to do Power budget.
Could you help…
Hi Yazhi,
Using the test points on the EVM to connect an external I2S source is OK, however, the onboard controller (TAS1020B) is still operating and connected to the same signals. I'm guessing your I2S-mic module works as slave on I2S interface, similar…
Hi Neethu,
I'm not sure if that will work since the filter occurs prior to both the headphone and speaker outputs and you say the headphone output is fine.
But if you want to investigate you can use the TI Biquad tool: https://www.ti.com/tool/COEFFICIENT…
Other Parts Discussed in Thread: TLV320AIC3104 TLV320AIC3104 specification:
https://www.ti.com/product/TLV320AIC3104?keyMatch=TLV320AIC3104&tisearch=search-everything&usecase=GPN
TIBQ tool:
https://www.ti.com/tool/download/COEFFICIENT-CALC
…
Hello Iwasaki-san,
Thank you for the additional information. I am assuming that the crackling noise is seen at the input of the CODEC.
For more information on calculating filter coefficients see the related posts below:
Tool to calculate the IIR and BiQuad…
Hi,
PLL review comments:
Page 0, R4 : PLL_CLK is input to CODEC_CLKIN, but there is no source selected for for PLL_CLK [D3:D2]
PLL Settings are; P=1, R=1, J=4, D=0
NDAC=1,MDAC=8,NADC=1,MADC=48,DOSR=192,AOSR=64. Is below expected settings?
Please us…
Hi Terry,
TI has an online coefficient calculator to determine what values needed to program the programmable filter registers. Visit: https://www.ti.com/tool/COEFFICIENT-CALC and download the tool.
Plug in your values and click the Coeff button (bottom…
Part Number: TMS320F2812
Hi all,
My system consists of FIR16 LPF, FIR16 HPF and RFFT32_512.
My fft_mag_out is not being updated at the end of FFT.calc function.
Here is my linker configurations
.othersys_coefffilt > EXT_SRAM…
Hi Jeff,
You may use the BQ calculation tool as below,
https://www.ti.com/tool/COEFFICIENT-CALC?keyMatch=TIBQ&tisearch=search-everything
Also, below spreadsheet may help you to convert the dec numbers into 5.27 format or any format else.
Coefficient…