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 ...

Resolved! Regarding current sense

Hello Support,I have application in wjhich i have to sense current for negative supply. specifications are as below.Negative supply voltage range( at RS- pin) : -5 V to -2 VCurrent range that needs to be sensed: 0.1 uA to 20uAThe output of OPAMP need...

NJani.2 by Associate II
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TDA7801 programming procedure

Hello ST experts, I am working on TDA7801 chip and I didn't find an explained way for programming it or even a simple code. To be specific, I can't read or write data to chip registers through I2C.!! Can you help?.best regards Hossam

What's The difference between TSZ122IST and TSZ122IYDT?

Dear ST support team,Good morning,I want to find alternative part for TSZ122IST . we check the data sheet and find out the TSZ122IYDT. But we didn't saw the difference between them.Please support to explain this case Thank and Best Regard,Danny,

DNguy.8 by Associate II
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What is the TDA7838 amplifier chipset?

HiThe Android All-in-One product I'm using has an amplifier chip called TDA7838 built-in. I would like to know the difference between the TDA7850 amplifier chip. I would also like to receive a datasheet for the TDA7838. I look forward to your answer.

JPARK.3 by Associate II
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Correct use of SMR (Sound MeteR) library

Hello.I'm trying to import the SMR module of the X-CUBE-AUDIO package in one of the projects I am working on. I wish to know the sound pressure level in dB on my microphones.My application generates a PCM buffer filled this way: 32 samples in 16-bit ...

Fib by Associate II
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Does SoundSL deliver wrong results? (solved)

Hello, I cannot get SoundSL working to detect the source of a sound direction correctly. To check how the library performs itself, I wrote a little test script.I assume a 1kHz sine wave to be sampled by a simulated microphone. At a sampling rate of 1...

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MKiss.1 by Associate II
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TSZ124 has DC offset at the output pins

Hello,I am using a TSZ124 chip to build a circuit for a breadboard experiment. I attached the schematic at the end of this message. I saw a very strange DC offset when I use an oscilloscope to look at its output pin (the input signal itself has no DC...

KWang.6 by Associate
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