Forum Posts
Incorrect audio acquisition with PDM microphone
Hi, I have a problem with audio acquisition using PDM microphones. After using PDM_Filter, single peaks of high amplitude appear in the data in addition to the correct readings. I am using 4 microphones MP34DT01-M, STM32H743 and SAI interface. I take...
Need help with TDA7294 bridge circuit with 18V power supply, in to 4ohm speaker load - No sound
Hey all,I copied this TDA7294 bridge circuit from the manuall:To this schematic: I have checked and double checked the schematic and it seems accurate to the manual's circuit. All parts are correct values to the manual's circuit. The PCB board is cor...
The FDA802 High Power Output Audio waveform is abnormal
1�?An IIS audio signal that feeds a sine wave2�?High power output3�?The audio waveform is abnormalI don't know where the configuration is wrong, please help with some suggestions, thank you.The desired audio waveform
tda7498e
Posted on January 29, 2018 at 05:48I've just managed to blow up 2 TDA7498E D Class amp chips when testing the first run of 25 production boards. This is the first time we have managed to damage any chips in over a year of prototype testing.We are us...
LM324QT - Is it OK to connect GND to the exposed pad with a dual-polarity supply?
LM324QT (QFN16 package) was used in my design as an amplifier. The design has a dual-polarity power supply with +12V, GND and -12V.I connected its exposed centre pad to GND, while connecting the VCC+ to +12V and VCC- to -12V. However, the datasheet s...
STP16NF06 vs IRF520
IRF520 type MOSFETs are starting to be phased out and so in all review, STP16NF06 should be a stable cross reference from what I have read, would anyone know perhaps is there a better cross for an IRF520 than the ST STP16NF06? i have ask OnSemi and t...
ST7580 - PLM01 DC Question
I'm speaking about the X-Nucle-PLM01A1 Board that uses the ST7580 IC. I would like to use this IC in a DC Bus application, not AC Line, like most of the reference design does. On page 13 of UM2189 is shown how the boards are connected. My question is...
