Najda builds - resource list

[SAC]

Feel free to post Najda build resources here (NO QUESTIONS HERE THANKS). Original thread is now at 985 posts;
http://www.diyaudio.com/forums/digital-line-level/215379-dsp-xover-project-part-2-a.html

Cost of parts
Parts needed are
-power supply 30-50€
-8 less couple of €
-display about 6€
-8 push to make switches 1€ each
-IR sensor 0.5€
-case and power cord etc -whatever you want...
-One for all remote 10€
-some hook up wire.

Note; "Also, phono (RCA) connectors can be left unassembled on request"
see example http://www.diyaudio.com/forums/digi...sp-xover-project-part-2-a-25.html#post3515726

Caution; The "1602 OLED ...Compatible HD44780" is NOT compatible with HD44780, despite the title. Skip this one it seems.


Last updated - 12Dec2013
Case
http://www.diyaudio.com/forums/digi...sp-xover-project-part-2-a-27.html#post3535991

Build examples
http://www.diyaudio.com/forums/digi...sp-xover-project-part-2-a-26.html#post3528408
http://www.diyaudio.com/forums/digi...sp-xover-project-part-2-a-28.html#post3556256
http://www.diyaudio.com/forums/digi...sp-xover-project-part-2-a-29.html#post3581527

www.diyaudio.com/forums/digital-line-level/215379-dsp-xover-project-part-2-a-29.html#post3587791

http://www.diyaudio.com/forums/digi...sp-xover-project-part-2-a-30.html#post3624104

http://www.diyaudio.com/forums/digi...sp-xover-project-part-2-a-33.html#post3695456

http://www.diyaudio.com/forums/digi...sp-xover-project-part-2-a-33.html#post3695456
case made here;
Home- Schaeffer AG - Frontplatten, Front Panels, Faces Avant

Build with Amanero
http://www.diyaudio.com/forums/digi...sp-xover-project-part-2-a-28.html#post3545662

PSU
Meanwell RT-50B
see http://www.diyaudio.com/forums/digi...sp-xover-project-part-2-a-25.html#post3515158
RT-50B - 50W 5V, 12V & -12V Output High Reliability Miniature Enclosed Power Supply
RT-50B MEAN WELL - Pwr sup.unit: pulse | Transfer Multisort Elektronik
RT-50B Mean Well | Mouser
Skynet SNP-902-1
USED HERE; Le sujet Kit NAJDA : carte DSP FIR/IIR : montage utilisation - Page 6 du forum Travail de Groupe - DIY sur Homecinema-fr.com - 30035550 - 1
http://www.skynetpower.com.tw/pdf/SNP-902Series.pdf
SNP-902 Series | www.skynetusa.com
SNP-9021(-1)|Skynet|Acal BFi
PSUs M-Z from Hamiltone, phone: +44-(0)1273-701648, email: sales@hamiltone.co.uk SNP-9021-1, SRP £call
SNP-9021-1 - Skynetpower - 20W Open Frame, General Purpose, Hard Switching - AC/DC - Texim Europe - SNP-9021-1-SKY

Display
Newhaven NHD-0216XZ-FSW-GBW
Invalid Request
Artronic Big Black Double Negative - ART BIG LCD 2x16 with LED b/l - W/KK (HD44780) 122x44mm [ABC016002C41-DLW-R]
ART BIG LCD 2x16 with LED b/l - W/KK (HD44780) 122x44mm [ABC016002C41-DLW-R] | eBay
ZYSCOM LCD Display HD44780 2x16 chr 16x2 Blue STN White Backlight BIG 9mm char
http://www.zyscom.pl/katalog/wc1602big.pdf
discussed here http://www.diyaudio.com/forums/digi...sp-xover-project-part-2-a-30.html#post3647966

Buttons
Navimec/1ZCS+1ZB MEC, Manufacturer of high quality tactile switches
MEC Navimec 1ZCS/1ZB caps + 5GTH935
In Europe we can order them at Conrad or RS Component

 

[SAC]

Users' recommendations (can ignore USB drivers notes having since beta model specific)
http://www.diyaudio.com/forums/digi...sp-xover-project-part-2-a-12.html#post3404628

Potential power supplies (housed types preferred)
model SNP9021-1 (not housed);
http://www.skynetpower.com.tw/pdf/SNP-902Series.pdf
MTW30-51212 TDK-Lambda | Mouser

LCD/OLED screens
items in lcd 2x16 store on eBay!
ART New LCD 2x16-H LED- W/KK (HD44780) H=36mm Blackline [ART016002H76-DIW] | eBay
1602 White Character OLED 16x2 Modules Arduino Compatible HD44780 | eBay


"Here's a list of IR receiver modules that have been tested with the board, they all work nice and are about 1 dollar each at digikey or similar shop:"

Rohm RPM7138
Vishay TSOP34338
Vishay TSOP38238
Vishay TSOP39338.

Remotes
Apple Remote | H i F i D U I N O
Apple remote awaiting coding!
Hot in 2012! Original Rii 2.4GHz Wireless Mini PC Keyboard Touchpad with IR Remote Controller USB V2.0 Black: Amazon.co.uk: Computers & Accessories


USB audio input
Amareno USB to I2S
QLS-HIFI QA01

Switches ("For switches I'd recommend unlit ones, of tactile type")
BLACK 2 TAG 1A SPST ROUND METAL MINIATURE PUSH TO MAKE BUTTON WITH 11MM FIXING H | eBay
9509136118 - MEC - SWITCH MODULE, BLACK | Farnell United Kingdom

Enclosures
http://www.ebay.co.uk/itm/121020637...sid=p3984.m1423.l2649&clk_rvr_id=471723280190
#2806 Aluminum Preamplifier enclosure /DAC case/ amplifier chassis AMP BOX | eBay
S-3207 Aluminum amplifier case / Enclosure /amplifier BOX/ PSU Case | eBay

 

[SAC]

Some serious power supply kits, 12V and 5V;
DDDAC 1794 NOS DAC - Non Oversampling DAC with PCM1794 - no digital filter - modular design DIY DAC for high resolution audio 192/24 192kHz 24bit
DDDAC 1794 NOS DAC - Non Oversampling DAC with PCM1794 - no digital filter - modular design DIY DAC for high resolution audio 192/24 192kHz 24bit

USB (can use 5V from Nadja PS)
http://www.dddac.com/dddac1794_usb.html

USB (also uses 5V with a little soldering)
https://hifiduino.wordpress.com/2013/04/16/got-the-xmos-384khz-usb-interface/#comment-9167

 

[SAC]

Sample builds
http://www.diyaudio.com/forums/digi...sp-xover-project-part-2-a-13.html#post3413244

http://www.diyaudio.com/forums/digi...sp-xover-project-part-2-a-13.html#post3413740

 

[pguerin]

Hi,

What types of connectors are usable on the card side for the LCD or the push buttons ?
Is it possible tu buy connectors already made with cables with no crimping needed ?

Any references are welcome

 

[SAC]

Hi,
I do not know if this thread is monitored much, being just a resource list. I suspect your question will have more exposure on the original thread;
http://www.diyaudio.com/forums/digital-line-level/215379-dsp-xover-project-part-2-a.html

 

[pguerin]

Hi SAC,

I do not know if this thread is monitored much, being just a resource list. I suspect your question will have more exposure on the original thread

OK,

one more thing If possible could you (or a moderator) rename this thread with the correct name Najda

 

[SAC]

Hi SAC,



OK,

one more thing If possible could you (or a moderator) rename this thread with the correct name Najda

Thanks, I've contacted the moderator. Hopefully they will move the list into post one so that I can update it more effectively.

 

[SAC]

Some datasheets;
http://www.cirrus.com/en/pubs/proDatasheet/CS42428_F1.pdf
http://cache.freescale.com/files/dsp/doc/data_sheet/DSP56724EC.pdf
http://www.cirrus.com/en/pubs/proDatasheet/CS3318_F1.pdf

- DAC and ADC in one IC
- The DSP is the dual-core DSPB56725 (500 MMACS)
- The micro is the STM8S207

The default opamps are STM's LM833.

 

[r1968]

SolaHD SLT Power Supply

Hi SAC
This thread will become a wonderful resource as Najda matures.
Want to add one power supply that is plentiful in Ebay US site for around $40 new. Specs look good for the SLT series.
http://www.emersonindustrial.com/en...ut_linears/SL-Single-Multi-Output-Linears.pdf

--raj

 

[SAC]

Hi Raj, thanks for contributing.

That supply datasheet says over voltage protection is set at 6.2V. The Nadja is only tolerant to 5.5V though. Could be a problem!?
"All 5-Volt outputs include
build-in OVP as standard
(setting is 6.2 V ±0.4 V)"

 

[dahlberg]

Cad (dxf)file for the backpanel.
http://www.dahlbergaudiodesign.se/najda_back.zip

 

[r1968]

8 LED Module

Would this work for the status LED's?

8 x LEDs Module

--raj

 

[SAC]

Hi,

Please keep questions in the original thread, this thread is just a list for successfully used equipment to be added.
http://www.diyaudio.com/forums/digital-line-level/215379-dsp-xover-project-part-2-a.html

 

[SAC]

The rotary volume control function is detailed here;

http://www.diyaudio.com/forums/digi...sp-xover-project-part-2-a-35.html#post3748084

requires "2x 10 kOhms pullups and 2x 100 nF debounce caps"

 

[JLOP]

Crimp connectors housing and Pre-crimped cables

Hi all

I did a lot unsuccessful research to find a modular system with
- all kind of 1xN and 2xM connectors required to integrate Najda and WaveIO boards
- long length (60cm) pre-crimped cables, as most often Dupont cable are available only in 20 to 30, maximum 40 cm
- multi-color cables which makes much more easy to install

until I found out Pololu - Crimp Connector Housings where they have all cables and housing. Order is being handled, will tell if not ok.

Hope that helps
BR
Jean-Louis

 

[SAC]

An expansion board is in the works;

"I'm also working on the expansion board, it will have an additional symmetric analog input and 2 additional analog outs."

http://www.diyaudio.com/forums/digi...sp-xover-project-part-2-a-36.html#post3785925

 

[mikebond]

Cad (dxf)file for the backpanel.
http://www.dahlbergaudiodesign.se/najda_back.zip

Hi! Do you have a pocture or PDF how it looks like? Sorry, I don't have CAD.
Mike

 

[Shutdown98]

Hi SAC
This thread will become a wonderful resource as Najda matures.
Want to add one power supply that is plentiful in Ebay US site for around $40 new. Specs look good for the SLT series.
http://www.emersonindustrial.com/en...ut_linears/SL-Single-Multi-Output-Linears.pdf

--raj

I have bought the Sola SLT12-40204-12T but it didn't work out.
You have to watch out for the type of housing. The H2 does not have the -12V/GND/+12V output the Najda needs.. It has 2x +12V outputs.
The H1 housing does have the correct outputs (1x 5V and the +12v/gnd/-12V)

 

[diyaudnut]

Folks, will this be a feasible USB audio interface for Najda

XMOS DSD 384 kHz / 32bit USB

offcial site

I2SoverUSB - I2S over USB Audio