Posted on August 28, 2017 at 06:46For a new design, I need an AES/ EBU receiver IC that can accept balanced inputs. The STA120D seems fit. However I cannot find the product page on the ST website even though the IC is available on Mouser and Digikey...
Posted on August 22, 2017 at 16:39I would like to use TN3050H-12GY-TR SCR at 400Hz. I am just not sure how would it be rated based on SCR controlling a pure restive load using 200Vac at 400Hz.#tn3050h-12gy-tr #400hz #scr
Posted on July 27, 2017 at 13:14Hello,Datasheet recommends connecting both MUTE and STBY pins on TDA7293 using R-C for delay to avoid pop noise.I would like to know if I can connect MUTE pin using R-C, as recommended, and connect STBY pin directly t...
Posted on July 21, 2017 at 15:26Hi,I'm using STA309A, and wondering the differnces between DDX damped ternary and binary PWM output, since there is no waveform examples in the DS. Anyone knows this? thanks a lot~Li dongsheng.
Posted on July 18, 2017 at 17:11#Help.!!! The TDA7491LP mute pin is the input port. I connected the 3.3V pullup resistor 33K resistor to the power supply, and the mute pin keeps the state of LOW state .... What is the cause? So there is no sound. . ...
Posted on June 24, 2017 at 15:24The STA326 datasheet (DocID11531 Rev 9) is unclear on a couple of points, so:* Does the STA326 output power level depend on the output stage supply voltage (VCC[12][AB] on pins 4,8,11,15),or does it depend only on the...
Posted on June 13, 2017 at 16:45On the steval-mki138 MEMS microphones dev kit, using the STAudioHub firmware and tools, I am observing a significant time drift between 2 developments kits acquiring the same audio signal at the same time. I am now lo...
Posted on June 09, 2017 at 05:47We are seeing some of our opamps failing, outputting the VCC rail regardless of input!The input signal is a BLDC fan current sense resistor and cell a is a non-inverting gain of 3x.Our sleep circuit was implemented in...
Posted on June 02, 2017 at 08:40Hello ,Could you kindly recommend me any STM kit that can be applicable for MEMS microphone ?This kit should be USB interfaced with PC, my plan is to connect it to VL812 USB 3.0 Hub Controller .Is it possible to make...
Posted on May 24, 2017 at 10:06We use osxAcousticEC library on STM32F401CBY6.For only one MCU, we can use OSX LicenseWizard to get license and this function is ok.But we are going to mass production, could you tell me how to batch obtain license? Th...