Jump Start PCB design/layout

Started by amerdsp in comp.arch.embedded13 years ago 7 replies
PCB

Greetings, I have been looking for good references about learning the proper ways and rules to layout and design pcb's. Are there any good...

Greetings, I have been looking for good references about learning the proper ways and rules to layout and design pcb's. Are there any good resources (books, tutorials) out there? Thank you, A


Taiwanese PCB Manufacturer: how to find it from UL code

Started by Anonymous in comp.arch.embedded10 years ago 1 reply
PCB

Hi folk, I got a pcb manufactured in Taiwan. I can read the UL code on it but don't know how to find the name of the manufacturer. any...

Hi folk, I got a pcb manufactured in Taiwan. I can read the UL code on it but don't know how to find the name of the manufacturer. any help appreciated, thanks Enrico


TQFP handling while developing

Started by Paul Rosen in comp.arch.embedded15 years ago 10 replies

Hi @ll Microchip offers his new controllers (i.e. dsPIC) with > 40 leads only in the TQFP but not PLCC package. Sockets for TQFP are not...

Hi @ll Microchip offers his new controllers (i.e. dsPIC) with > 40 leads only in the TQFP but not PLCC package. Sockets for TQFP are not reliable. Thus they are no solution. What does that mean? The original PCB cannot longer be used for developement, because sockets are not possible. You have to design a special PCB for that. The only way I found, is to solder the device under tes


Flash / IC used in SD Cards.

Started by Jon S. in comp.arch.embedded14 years ago 2 replies

I'm working on a project that will use a SD Card for file storage. We would also have some 'internal' filespace. So i thought of placing a...

I'm working on a project that will use a SD Card for file storage. We would also have some 'internal' filespace. So i thought of placing a second memory on the PCB and on the same SPI bus. This would save the work of writing a different driver. Offcoarse i could add a second SD Card socket to my pcb, but i was wondering if the chip used inside is available (Serial Flash ?) , so i we cou...


Building Coaxial transmission line on PCB?

Started by Geronimo Stempovski in comp.arch.embedded12 years ago 81 replies
PCB

I think transmitting high-speed signals is very easy when you have a 360-degree ground reference, round conductors, and no other nearby signals...

I think transmitting high-speed signals is very easy when you have a 360-degree ground reference, round conductors, and no other nearby signals like in coaxial cables. My aim is to design PCB tracks as much like a coaxial cable as possible. Anyone tried this before? Is it possible with regular FR4, anyway? Thanks for your help. Gero


PCB Manufacture in UK

Started by ratemonotonic in comp.arch.embedded11 years ago 12 replies

Hi All , Lately I came across an american service called ExpressPCB , that has its own CAD software and after laying out the PCB , you can use...

Hi All , Lately I came across an american service called ExpressPCB , that has its own CAD software and after laying out the PCB , you can use the software itself to order board manufacture. The software can be used to generate BOM and specify Part number from Digikey. This is brilliant seamless process. Also it is fine tuned for hobbyists. The pricing is fabulous. The only problem is the ...


prototype pcb with blind vias

Started by john bogus in comp.arch.embedded14 years ago 6 replies
PCB

Can anyone recomend a good inexpesive source for small volum prototype PCB's with blind vias

Can anyone recomend a good inexpesive source for small volum prototype PCB's with blind vias


1st Time PCB Design

Started by benn in comp.arch.embedded11 years ago 20 replies

Id like to design a simple board over the holidays, I've never layed out a board before, so Im a little nervous :) I've started the...

Id like to design a simple board over the holidays, I've never layed out a board before, so Im a little nervous :) I've started the schematic capture, and the routing and found a cheap place to get it fabd. (I dont want to muddy the waters by doing a homebrew pcb myself!) Id like to go with whatevers the cheapest to manufacture, so Im thinking about the $65 single sided boards at www...


Pinout data grumble

Started by Leon Heller in comp.arch.embedded15 years ago 18 replies

Why don't more manufacturers provide their device pinouts (pin numbers and names) as a spreadsheet or text file? It would make part creation...

Why don't more manufacturers provide their device pinouts (pin numbers and names) as a spreadsheet or text file? It would make part creation for PCB design packages *much* easier. Sometimes the data can be extracted from the PDF file without too much trouble and then imported directly into the PCB software, but in many cases this can't be done because of the way the document is formatted...


Best PCB design software?

Started by Roger in comp.arch.embedded15 years ago 10 replies

What do you think is the best (cheap) schematic capture and PCB design software available now? Thanks. R.

What do you think is the best (cheap) schematic capture and PCB design software available now? Thanks. R.


PCB Assembler Recommendations Northern NY State

Started by Robert Adsett in comp.arch.embedded11 years ago 10 replies
PCB

I'm looking to see if anyone has any recommendations for a PCB assembler/Contract manufacturer in Northern NY State. Small quantities (10's...

I'm looking to see if anyone has any recommendations for a PCB assembler/Contract manufacturer in Northern NY State. Small quantities (10's rather than 1000's) Mixed SMT and through hole. Preferably turnkey Robert -- Posted via a free Usenet account from http://www.teranews.com


Affordable PCB Layout Software ???

Started by Blackwater in comp.arch.embedded10 years ago 164 replies

Um ... has there been some kind of conspiracy at work over the past few years to totally drain the marketplace of decent PCB layout/routing...

Um ... has there been some kind of conspiracy at work over the past few years to totally drain the marketplace of decent PCB layout/routing software ??? Circuitmaker, Protel, Traxmaker ... the sub-$200 kind of goodies that combined all the good features with intuitive no-BS interfaces - gone. Seems they've all been bought-up and destroyed by Altium - which will now generously sell you t...


PCB prototyping / copper metallization

Started by hex16 in comp.arch.embedded9 years ago 2 replies
PCB

I am using A360 PCB mill/drill ( www.accuratecnc.com ) to make my prototypes. Lately I need to fabricate small batches (up to 10). Because of...

I am using A360 PCB mill/drill ( www.accuratecnc.com ) to make my prototypes. Lately I need to fabricate small batches (up to 10). Because of this, I am looking for real copper metallization. Conductive inks (like ProConduct) of LPKF are not good enough for me. Is there any body that can recommend me a system at good price and what real experience has with it?


Freelance PCB Designer wanted for small project in Brighton, UK

Started by JustDavid in comp.arch.embedded4 years ago

Hello all I am working on a small project and I need someone to hire/help with a schematic and PCB design. I have a little knowledge and know...

Hello all I am working on a small project and I need someone to hire/help with a schematic and PCB design. I have a little knowledge and know all the components needed. I have put together a rough schematic in Eagle but it needs a little work. I would really like to work with someone fairly local so if you think this is you then please get in touch. Cheers David davidjamesbrooker@yaho...


Requesting help from EAGLE PCB users

Started by Anonymous in comp.arch.embedded13 years ago 3 replies

Hi all, I'm using the EAGLE PCB layout editor and absolutely love it. It's so much easier than other software I've worked with. I am,...

Hi all, I'm using the EAGLE PCB layout editor and absolutely love it. It's so much easier than other software I've worked with. I am, however, running into a problem with TQFP packages and the autorouter. If I bring in a TQFP package (e.g. PIC18F65J10) and a 8 pin header and make 8 random connections from the PIC to the header, and then go into the "Board" mode and use the autorouter......


Open source GPL Schematic and PCB Editing software

Started by Anton Erasmus in comp.arch.embedded14 years ago 5 replies

Hi, The following link for Schematic and PCB editing software has been posted on the lpc2000 yahoo...

Hi, The following link for Schematic and PCB editing software has been posted on the lpc2000 yahoo group. http://www.lis.inpg.fr/realise_au_lis/kicad/ Looks like it runs under both Linux and Windows. The documentation is mostly in French, and it looks like they are looking for people to help translate the documentation into English. Regards Anton Erasmus


PCB mfr recommendations

Started by Baxter in comp.arch.embedded11 years ago 4 replies
PCB

I need some recommendations for reasonably-priced PCB manufacturers: - relatively small runs: ~100 boards - boards are about 2" X 3" -...

I need some recommendations for reasonably-priced PCB manufacturers: - relatively small runs: ~100 boards - boards are about 2" X 3" - relatively simple boards - SMT, one-side - for hand-assembly. - prefer US Alternatively, is there a reasonable way to make limited runs (10-20 boards @ 2"X3") of SMT boards myself?


PCB Protos

Started by Eric in comp.arch.embedded13 years ago 17 replies

I just finished laying out my 8051 Project (2in x 4in) and I was wondering what PCB proto houses people would recomend. So far PCBex.com...

I just finished laying out my 8051 Project (2in x 4in) and I was wondering what PCB proto houses people would recomend. So far PCBex.com looks like the lowest cost at $10 + $18.00(shipping and handling) for a single 2 layer (20 sq. in max) with solder mask and silk screen. I've also looked at: PCB123 $44 (2 layer no soldermask & no silkscreeen) min order 2 PCB123 $120 (2 layer solder...


pin swap in SDRAM

Started by tullio.grassi in comp.arch.embedded12 years ago 7 replies

Hi, to ease the routing of my PCB, I'd like to swap some data lines on a SDRAM. I'd like to be 100% sure that the swapping will not create...

Hi, to ease the routing of my PCB, I'd like to swap some data lines on a SDRAM. I'd like to be 100% sure that the swapping will not create problems once the PCB is built. I use a SDRAM MT48LC8M16A2 from Micron. The only documentation that I found is: http://www.freescale.com/files/32bit/doc/app_note/AN2582.pdf about DDR, and they say "Pin-swap within a given byte lane to optimize the...


Olimex alternative for PCB manufacturing

Started by Anonymous in comp.arch.embedded6 years ago 2 replies

As you probably know, Olimex is having capacity problems and has therefore stopped taking orders for PCB's to be manufactured. As I needed some...

As you probably know, Olimex is having capacity problems and has therefore stopped taking orders for PCB's to be manufactured. As I needed some boards made I decided to look into alternatives. I found this one: http://store.iteadstudio.com/index.php?main_page=index&cPath=19_20 Apparently, their boards are manufactured in China. They're also dirt cheap, cheaper even than Olimex, so I...