Analog and audio

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Forum board changes

Dear community member, The “Analog and audio” topic is no longer supported on the ST community. The legacy content is available only by the read-only basis. If you have any requests regarding "Analog and audio”  topics, check the alternative support ...

TDA7706

Looking to add FM HD into my project.Digikey suggests the TDA7706 is Obsolete, while the ST website says its active.Looking for a recommendation that will be supported into the future.Also looking for additional datasheet information, and register ma...

imzack by Associate
  • 958 Views
  • 4 replies
  • 5 kudos

Vintage ST/SGS-thomson component ID

 looking to identify this IC, it's most likely from the mid to late 70s and my own hunt has turned up nothing, I would expect it to most likely be some form of amplifier as it is used in a preamp circuit. Any help would be appreciated, thanks!Fergus.

20231017_195147.jpg

TS9222 Impedance analysis

Hi teamI am using TS9222 ( two stage inverting buffer) op-amp as a microphone pre amplifier. it will acts as a voltage follower. Resistor set in the inverting input and feedback is 47K. capacitor in the feedback is 100pF. this is repeating twice(two ...

KR.5 by Associate II
  • 1858 Views
  • 7 replies
  • 0 kudos

MEMS microphone

Hello guys, Newbie here and was wondering if you can help.Was looking for MEMS microphones to enhance predicitive maintenance and cam across the IMP23BSU and seems like it is pretty suitable to enhance predictive maintenance. Although, in industrial ...

GSpencer by Associate
  • 653 Views
  • 2 replies
  • 1 kudos

Resolved! TSB582 exposed pad

Hello,can we connect the exposed pad of the TSB582IDT to GND in the PCB layout?There is nothing mentioned in the datasheet regarding the exposed pad.

p.stein by Associate
  • 918 Views
  • 2 replies
  • 2 kudos

STW81200 PLL not answering on SPI

Dear all,I am using STW81200 as a PLL LO signal generator. I have designed my own PCB strictly following the reccomendations and reference design of evaluation kit. Currently I am trying to perform SPI communication between host FPGA and my PLL circu...

Audio to I2S Converter?

What's the least expensive device that can receive analog audio in, and output I2S audio data?Input resolution should be 16 bits or higher, sample rate 48 kHz or higher. Is there a dedicated ADC chip? or, the STM32G030?

The BOOM by Associate III
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  • 1 replies
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Mystery RC circuit in TS482IDT Audio Amplifier.

Hey,I'm currently working on upgrading an audio amplifier design I inherited. I've gone through the circuit in detail and I think I've got a handle on most of it. But I'm stumped by the purpose of the highlighted RC circuit. Anybody have any ideas on...

audio amplifier circuit.PNG
Kenny03 by Associate II
  • 1436 Views
  • 5 replies
  • 1 kudos