Analog and audio

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E-TDA7391PD tab connection?

Posted on February 04, 2016 at 13:53Hi,Is the tab or ''slug'' of E-TDA7391PD connected to anything? I'm guessing that it's connected to GND, but I cannot find any information regarding this.On the similar circuit TDA7391LV, it's stated in the datash...

albin by Associate
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  • 2 replies
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Factor consider for choosing the ADC

Posted on January 21, 2016 at 11:46Factor must be consider for choosing the right  1> resolution 2> precision 3> accuracy 4> type of adc   using these are factor consider for the choosing right embedded system

weird noise from STA321MP output

Posted on January 07, 2016 at 11:04Hi,I am using STA321MP to record the audio signal, I have observed the noise from its output signal when there is no speech. The period is ~20ms. Do you have any idea where it is from?

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son1 by Associate II
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I bought 100 TDA7297 and only worked 2

Posted on January 07, 2016 at 16:44hi, boys.I bought 100 TDA7297 and ran only 2. I wonder if there might be fakes in the market for this Amp Model , or if there is another version that works with other than the proposed schematic datasheet . Someone...

soporte by Associate
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  • 3 replies
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TDA7266M

Posted on December 15, 2015 at 07:37Hi, We have chosen TDA7266M 7W Mono amplifier for our new project with out Micro controller interface. As per datasheet recommenced test circuit (Figure 3a: Stand-alone Low-cost Application.) i have assembled & te...

Simple audio recorder solution selection

Posted on December 03, 2015 at 10:51Hi, All! Could you please recommend audio amplifiers solution for mono recorder / player with following characteristics: electret micdinamic speaker 0.3W power voltage 3.0Vshutdown possibility is neccessarynot s...

krdmitry by Associate II
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  • 1 replies
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Special IC

Posted on November 08, 2015 at 19:24Anyone heard about a ST IC with the name 07502233?It sits in a Bosch Charger with a LM324AN beside it. Both are STMicroelectronics. But I can't find what type the 07502233 IC are! Any that know and can tell if it'...

geir by Associate
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One of the LMV324IDT op amps as a comparator

Posted on November 03, 2015 at 17:13We have an extra op amp in the quad package that we'd like to use as a comparator to save cost.  Any recommendations?  I'm a little concerned about stability and oscillations.