seppoman

MBHP_ETH, MBHP_SDCARD, SSM2044, SSM2164 PCB Bulk Order

140 posts in this topic

PCB's arrived in Amsterdam today, looking mighty fine...

thanks seppoman!

Share this post


Link to post
Share on other sites

Recived mine today,

thanks Seppoman :)

Share this post


Link to post
Share on other sites

Good to hear that the PCBs are arriving :)

please let the people know if there's more shipping cost to cover then!

No that's not necessary - the new envelopes just arrived and now I've got enough to use in the next 2-3 bulk orders ;)

actually I've got the feeling that the ladies at the post office were often confused with all the different destinations and weights, and maybe there are a few cases with orders of 3-4 PCBs that might have slipped into the cheaper postage class. So if someone feels that the stamp doesn't match at all with what he paid me, please send me a pic of your stamp/envelope and I'll Paypal you the excess money (don't forget that the "postage" on your Paypal invoice also contains 20c for the envelope and all hidden Paypal fees).

S

Share this post


Link to post
Share on other sites

I had to drive to the otherside of town due to some mailman mix up. But is was well worth it. Thanks Thomas :thumbsup:

:heart: the black PCB.

Share this post


Link to post
Share on other sites

Hmm, finally weekend so I thought I'd had a go with the soldering iron. Anywho, now I noticed that we have some RC components on the SD-card PCB. The WIKI doesn't mention these. Is there any schematic for this, or should those be bypassed in the event of a CORE_32 connection? Anyone?

Share this post


Link to post
Share on other sites

Anyone?

yes, me :tongue:

Those extra Rs and Cs are not absolutely necessary for operation, so if you don't got these parts at hand and want to start using the reader immediately, the only thing you need is the connector.

The capacitors are there for power integrity/stabilization, C1 is 100 nF and C2 is a 10 uF electrolytic capacitor (2.5mm spacing). Both are the usual types found on other modules, too, no special types or part numbers required.

The two resistors are pullups that are recommended by the official SD Card spec, can be e.g. 1k or 10k. Usually, SD cards will work fine without them but the official way is to put them in.

btw, don't ever "bypass", i.e. bridge/short, anything you don't really know why it's there ;)

S

Share this post


Link to post
Share on other sites

yes, me :tongue:

...

btw, don't ever "bypass", i.e. bridge/short, anything you don't really know why it's there ;)

S

Thanks Seppo!

Haha, had this been pure analog or high-power pins I would have been really careful. You can get away with more in the digital realm :whistle:

Official SD-card specs... *facepalm*, thought those were secret or proprietary so I didn't bother faffing around with those :fear: . DUH!

*EDIT* 'Twas working fine yesterday. Before this I only had the standard I/O mapping, now I run the full Wilba version with my front panels. Now for some SSM fun...

/J

Edited by olga42

Share this post


Link to post
Share on other sites

Got mine today.

Thank you very much!

Share this post


Link to post
Share on other sites

Arrived on Tuesday in Michigan USA

Share this post


Link to post
Share on other sites

Got my boards today ...

Many thanks once again.

Share this post


Link to post
Share on other sites

Received this week (New Zealand) while the forum was awry. Thanks Seppo!

Share this post


Link to post
Share on other sites

I kinda want to order my parts so i am able to start. I haven't found any partlist for the SSM2164 VCA yet. I guess Seppoman hasn't come round to it yet. So far i deducted from the photo's the following:

P1,P2,P3,P4 - PV36W - 10K Precision Trimmer

IC1 - SSM2164

IC2,IC3 - TL074CN OpAmp

IC Socket - 2x 14

IC Socket - 1x 16

Single Header 3 Pin x 5

Double Header 8 Pin x 1

Share this post


Link to post
Share on other sites

PCBs landed safely in Prague last week, thanks Seppo!

Share this post


Link to post
Share on other sites

The BOM is online on the WIKI now :)

Cool thanks...i took the liberty of adding a public shopping cart to the page.

Share this post


Link to post
Share on other sites

Is there anyone in Germany that would be willing to let me piggyback on their Reichelt VCA and VCF orders, and then ship me my parts? There are some parts that are either back ordered, or seemingly unavailable (styroflex caps) from Mouser, digikey etc.

PM me if that sounds doable.

I'd be thankful!

Cheers,

Grizz

Share this post


Link to post
Share on other sites

Is there anyone in Germany that would be willing to let me piggyback on their Reichelt VCA and VCF orders, and then ship me my parts? There are some parts that are either back ordered, or seemingly unavailable (styroflex caps) from Mouser, digikey etc.

PM me if that sounds doable.

I'd be thankful!

Cheers,

Grizz

the xicon polystyrene caps at mouser will be fine:

http://www.mouser.com/ProductDetail/Xicon/23PS182/?qs=sGAEpiMZZMsh%252b1woXyUXj2Wk4Z3nZoF90BVWr6rvbXU%3d

http://www.mouser.com/ProductDetail/Xicon/23PW310/?qs=sGAEpiMZZMsh%252b1woXyUXj2XVQGjeabU77qlb6tKBp2s%3d

I'll be sourcing mine shortly so keep in touch

*edit

Actually, those 10 nF xicon are HUGE (10mm diameter)

Check these out:

http://www.newark.com/lcr-components/fscex-10000pf-1-63v/capacitor-polystyrene-0-01uf-63v/dp/97K0250

Those are used on the oakley TM3030,are 1%, and VERY nice (glad I got a bunch of the radial ones when I built mine, i'll definitely try them in the VCF)

One cool thing abut shopping at Newark is that their UK division is Farnell so anything that Farnell carries that isn't available in the US you can order through Newark and have it shipped for a $20 flat fee which is not too bad if you load up on stuff that we cant get domestically

Edited by Altitude

Share this post


Link to post
Share on other sites

Thanks for the response Altitude... Here is what I have completed as far as sourcing for the VCF... There is a column for Mouser and one for Newark... Fuzzylizard gave me his order invoice from his VCF mouser order which helped a bunch... I'd be interested in what you (or anyone else for that matter) thinks... I didn't bother sourcing the resistors yet through Newark... I can't imagine that taking very long...

Also, I hope it is not improper of me to use this thread for this... if so sorry!

Cheers,

A

Parts List SSM2044 VCF

Part Value Reichelt No. Newark Part # comments Mouser part # Comments

C1,C2 220 uF RAD 220/25 38M3184 140-XRL25V220-RC

C3,C4 10uF RAD 105 10/63 70K9680 140-XRL25V10-RC

C5-C12 100nF Z5U-2,5 100N 85K9474 140-50U9-104Z-RC

C13,C14 100pF NPO-2,5 100P 46P6382 581-SR151A101JAR

C15-C18 470nF Z5U-5 470N 97K4543 581-SR205E474MAR

C19-C24 10nF STYROFLEX 10N 97K0250 80-C331C103J1G5CA

C25,C26 820pF STYROFLEX 820P 97K0287 81-RPE5C1H821J2P1A03

D1 1N4148 1N 4148 33C2680 78-1N4148

IC1,IC2 SSM2044

IC3 LM13700 LM 13700 DIL 41K3507 backordered 513-NJM13700D

IC4 TL072P TL 072 DIP 76C6659 backordered / min order of 400 595-TL072CP

K1 G6K-2P G6K-2P 12V 36K1951 653-G6K-2P-DC5

P1,P2 10k 64W-10K 03F6588 652-3296W-1-103LF

P3,P4 500 64W-500 03F6584 652-3296W-1-501LF

R1-R6 220 METALL 220 271-220-RC

R7-R13 1k METALL 1,00K 271-1K-RC

R14,R15 100 METALL 100 271-100-RC

R16,R17 10k METALL 10,0K 271-10K-RC

R18,R19 24k METALL 24,0K 271-24K-RC

R20,R21,R24-R27 47k METALL 47,0K 271-47K-RC

R22,R23 27k METALL 27,0K 271-27K-RC

R28,R29 100k METALL 100K 271-100K-RC

T1 BC547 BC 547C 58K0094 512-BC547ABU

PS... sorry about the jumbled nature.. It looks different in the preview window... oh well

Edited by grizz

Share this post


Link to post
Share on other sites

The TL072 is a super common op amp, just look for a different manufacture or a better spec'd chip (595-TL072ACP or BCP). I have a whole tube of the BCP parts so if you need those, let me know. LM13700 are available from futurlec (and I have a few of those too). If you order from futurlec know 2 things: a) order as much as u can, their prices are dirt cheap for just about everything so stock up on alpha pots, headers, crimp pins, whatever. b) they come out of Thailand so it will take several weeks to get your parts.

I'm actually glad I looked up the LRC caps at newark since the radial ones I have (the square ones) wont fit on the SSM PCB but the axial ones that Newark stocks domestically are only 5mm in diameter which most definitely will fit and are acutally smaller and better spec'd than the styroflex parts

Edited by Altitude

Share this post


Link to post
Share on other sites

Cool, thanks for the info... I haven't ordered from futurlec before so I will check them out. I'm not horribly rushed, since I haven't gotten my pcb's yet, and I want to avoid placing as many orders as I did while building my MB808... I kept realizing I needed 1 or 2 more things... My own fault. Plus I still have to silkscreen or get a vinyl for the MB808... I almost wished I had just forked out the money to have FPE engrave it... I also cannot seem to figure out why my AOUT_NG will work with my MB6582, but will not budge with my MBSEQ... all loose ends I should probably fix before beginning a new project...

cheers,

grizz

Share this post


Link to post
Share on other sites

Boards received friday......many thanks.

Paul

Share this post


Link to post
Share on other sites

There is nothing special about the ceramic capacitors on the VCA-board, right?

Share this post


Link to post
Share on other sites

Actually, those 10 nF xicon are HUGE (10mm diameter)

the Reichelt Styroflex ones are about 10 mm, too. I didn't want to make the PCB larger than necessary so it's a tight fit, but not impossible to mount (see the pic on the Wiki page).

Share this post


Link to post
Share on other sites

There is nothing special about the ceramic capacitors on the VCA-board, right?

yes right. usually the larger values aren't ceramic but foil types (that's not bad because they usually have better tolerance). But on the VCA board there are no caps that could degrade or influence sound quality. The worst thing that could happen because of cap tolerances is that the VCA speed/snappiness would vary a little bit between channels.

For the resistors I'd recommend to use the metal type because of the better tolerance. As they're only slightly more expensive and no overall cost factor, you'd rather have the volume/gain levels matched as good as possible instead of saving 20 cents :)

S

Share this post


Link to post
Share on other sites

yes right. usually the larger values aren't ceramic but foil types (that's not bad because they usually have better tolerance). But on the VCA board there are no caps that could degrade or influence sound quality. The worst thing that could happen because of cap tolerances is that the VCA speed/snappiness would vary a little bit between channels.

For the resistors I'd recommend to use the metal type because of the better tolerance. As they're only slightly more expensive and no overall cost factor, you'd rather have the volume/gain levels matched as good as possible instead of saving 20 cents :)

S

The high capacitance capacitors might be a little hard to find in ceramic type, I guess foil caps are OK as long as they fit the footprint of the PCB?

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now