Najda builds - resource list

SAC · 2013-04-24 7:05 pm

SAC · 2013-04-24 7:15 pm

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 · 2013-04-25 10:26 pm

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 · 2013-04-25 11:01 pm

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 · 2013-04-27 1:34 pm

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 · 2013-04-27 3:04 pm

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 · 2013-04-27 3:35 pm

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 · 2013-04-27 8:31 pm

Pascal GUERIN said:
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 · 2013-04-28 10:04 am

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 · 2013-05-05 6:39 am

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 · 2013-05-05 11:47 am

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 · 2013-05-09 6:09 pm

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

r1968 · 2013-05-16 7:51 am

8 LED Module

Would this work for the status LED's?

8 x LEDs Module

--raj

SAC · 2013-05-16 8:46 am

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 · 2013-12-23 12:21 pm

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 · 2013-12-30 2:00 pm

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 · 2014-02-02 9:04 pm

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 · 2014-05-09 8:32 am

dahlberg said:
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 · 2015-01-23 10:17 am

r1968 said:
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 · 2015-09-16 7:20 am

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

XMOS DSD 384 kHz / 32bit USB

offcial site

I2SoverUSB - I2S over USB Audio

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Najda builds - resource list

SAC

SAC

SAC

SAC

pguerin

SAC

pguerin

SAC

SAC

r1968

SAC

dahlberg

r1968

SAC

SAC

JLOP

SAC

mikebond

Shutdown98

diyaudnut