Usually the suffixes refer to packaging styles. Always make sure you're
getting a DIP, not a SOIC or surface mount package. In the case of TL07X
series the A, B, and C refer to different Input Offset Voltage tolerances.
For the purposes of these circuits those parameters usually don't make a
difference, and where they do, you want something BETTER than a TL07X
anyway.
John Loffink
The Microtonal Synthesis Web Site
http://www.microtonal-synthesis.com
The Wavemakers Synthesizer Web Site
http://www.wavemakers-synth.com
getting a DIP, not a SOIC or surface mount package. In the case of TL07X
series the A, B, and C refer to different Input Offset Voltage tolerances.
For the purposes of these circuits those parameters usually don't make a
difference, and where they do, you want something BETTER than a TL07X
anyway.
John Loffink
The Microtonal Synthesis Web Site
http://www.microtonal-synthesis.com
The Wavemakers Synthesizer Web Site
http://www.wavemakers-synth.com
> -----Original Message-----
> From: cgs_synth@yahoogroups.com [mailto:cgs_synth@yahoogroups.com] On
> Behalf Of sasami@...
> Sent: Thursday, January 19, 2006 3:31 PM
> To: cgs_synth@yahoogroups.com
> Subject: Re: [cgs_synth] More newbie questions
>
> Often these letters refer to the type of packaging the chip comes in.
> Sometimes it makes no difference (except maybe to the price) - plastic or
> ceramic for example. Some times it does make a difference - DIP or surface
> mount for example. The datasheet should give the details, even if the
> catalog doesn't.
>
> I don't specify this because these can vary brand to brand. If I say
> TL071,
> what I am saying is "any brand or package of TL071 that will fit on the
> board".
>
> With electros, the voltage on it needs to be equal to, or higher, than the
> one I give.
>
> Resistors need to be at least 1/4W (the standard for small resistors),
> though higher ratings that will physically fit are okay. As for resistors,
> 5% tollerance is assumed if no value is given, though using 2% or 1%
> resistors is fine. In fact, the preferred resistor type is metal film 1%,
> but they do cost a little more.
>
> Ken
>
> >When im buying components to build my modules, does it matter which IC
> >I buy? many of them have letters listed on the end of them that are
> >not listed on the parts list. Say I need a tl071, do I get a tl071SM
> >CD ACM ACP, etc.... Even simple parts like resistors and caps give me
> >many options. I know this is some basic electronic stuff, and I
> >should know it by now, but Im learning.
> >(this is why I ordered my first few modules as kits from elby.. but
> >Ive already picked out a few more that I want, and would like to get
> >only the PCB's this time)
> >
> >