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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 ...

Gain of TS922

Hi, im trying to find out the gain from the TS922EIJT used inside the STEVAL-STWINKT1B evaluation board. Here is where the opamp is used.So far, i have simulated the schematic using LTSpice and got a gain of -80 dB (see attached screenshot of the cir...

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TomRett by Associate III
  • 1141 Views
  • 4 replies
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Driving 2 headset in parallel with ts482idt audio amplifier

Hi, I'm wondering if it is okay to connect 2 16ohm headsets in parallel to the ts482idt stereo amplifier. This would mean that the output load is now 8ohms but the datasheet only mentions 16 and 32 ohm loads. What if any issues would I encounter in t...

Kenny03 by Associate II
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  • 3 replies
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Resolved! adc120

We need to use the ADC chip ADC120 within our design, unfortunately the readout process that we perform only outputs channel IN0 data as output, regardless what we set in ADD2, ADD1 and ADD0 bits. I am not sure how to change the channel, but followin...

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Resolved! ADC120 Channel Selection

I am using ADC chip ADC120. ​Data is output, but the channel is not changed, so only IN0 data is output.​The SCLK goes low and data is entered in DIN.SCLK goes low and DOUT is read.​I am not sure how to change the channel.​Please help.Thanks.​

kshin.1 by Associate
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  • 2 replies
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Resolved! Question about LMV321LICT

Dear Sirs! I use in my design LMV321LICT manufactured by STMicroelectronics. And I faced very strange behavior.LMV321LICT powered by +3V in mode of buffer or non inverting amplifier.When for example there is +1.5V DC in plus input and gain 2, I see a...

Resolved! Powering multiple optical front-ends

Hello,There are 8 optical front-ends on the board ... the front-ends based on TSV771 (or TSV772, TSV782, TSV791, TSV792).Is it important to use one LDO per front-end or powering all 8 frontends by a single LDO will be also Ok ?Thanks.

Pavel_47 by Associate II
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  • 4 replies
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Resolved! Help identifying ST chip

I am trying to identify a chip with an ST marking. It is an SOIC-14 and appears to be identified with the markings 247. There are more markings on the package, but they vary from package to package and I suspect they are some sort of manufacturing an...

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TChri.3 by Associate
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  • 5 replies
  • 3 kudos

Resolved! Package Type

Is L7805ABD2T-TR type A or B D2PAK? Ordering information doesnt have any designation to order Type A or B and I am not sure what type is L7805ABD2T-TR.

Arezo by Associate
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  • 1 replies
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Resolved! TSB582 consumption current error

Hello.I would like to know about the error of TSB582 consumption current.Please let me know if there is a figure between it's consumption current (or quiescent current) vs. supply voltage for the number of parts, and data on minimum and maximum consu...