I've tried Tenor TE7022l with success, now I'm using a WaveIO (XMOS). I think most I2S input will work with the AK4396.
Thanks bismuth,
I am glad to hear you have had success with the Tenor TE70221 as I believe that is the same chip as the one in the HA info.
Better off with CM6631 it goes all the way to 24/196khz.
This looks interesting too but I haven't tried it as of yet.
XMOS 384kHz high-quality USB to I2S PCB with ultralow noise 6.5uV regulator | eBay
This looks interesting too but I haven't tried it as of yet.
XMOS 384kHz high-quality USB to I2S PCB with ultralow noise 6.5uV regulator | eBay
@hotinron where did you get the usb converter board from? ebay?
us it this one from zoe_tsang
http://www.ebay.com.au/itm/CM6631-U...mplifier_Parts_Components&hash=item2ec43091e8
us it this one from zoe_tsang
http://www.ebay.com.au/itm/CM6631-U...mplifier_Parts_Components&hash=item2ec43091e8
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Can anyone supply info on the output impedance of this DAC. I realise that there will be differences related to whether the build is as per the whole board or using direct out/tx out etc.
I have to fit a different value ,20K as opposed to 50K (shunted) in my hybrid amp to account for the low o/put impedance of my new phono stage @ 10 Ohm.
I have to fit a different value ,20K as opposed to 50K (shunted) in my hybrid amp to account for the low o/put impedance of my new phono stage @ 10 Ohm.
Hi, what is the circuit on perfboard for ? a discrete output stage ?The TENOR Chip works great but this is the dogs bollocks.
Need a bigger case now though!!
@hotiron would love to see more of your design looks great everything in one box
What do you want to see? I'll take some pics later on.
The case is an old printer switch
I tend to use old set top boxes also.
Use a piece of wood for the new front panel.
Thanks, did you adapt the component values to match the low pass filter recommended by AKM (fc=125kHz, Q=0.692) ?
Still trying to get the DAC to run with the LME49990.
Bypassed the supply, earth to + and - supply with a 10 uF tantalum (ELFA 67-704-57), a 2,2 uF ceramic (ELFA 65-721-20) and a 470 nF ceramic (ELFA 65-200-19) as per design note for the LME49990.
Also hooked up some 56 ohms in series with the output.
Must buy a IR thermometer, think it´s still on the hot side - scope looks OK, but it´s only a 40 MHz.
On the adapter, the lacquer past the output pin has started to vaporize some mm out.
Sound quality is a bit colder, used Wima MKS 4, 1 uF as bypass before - sounded warm,fat and open.
Now with tantalum and ceramics bypassing the opamp, a bit cold and clear - the bypass close to the opamp is very important - don´t use a electrolyte there.
Bypassed the supply, earth to + and - supply with a 10 uF tantalum (ELFA 67-704-57), a 2,2 uF ceramic (ELFA 65-721-20) and a 470 nF ceramic (ELFA 65-200-19) as per design note for the LME49990.
Also hooked up some 56 ohms in series with the output.
Must buy a IR thermometer, think it´s still on the hot side - scope looks OK, but it´s only a 40 MHz.
On the adapter, the lacquer past the output pin has started to vaporize some mm out.
Sound quality is a bit colder, used Wima MKS 4, 1 uF as bypass before - sounded warm,fat and open.
Now with tantalum and ceramics bypassing the opamp, a bit cold and clear - the bypass close to the opamp is very important - don´t use a electrolyte there.
A conclusion to my experiments with the LME49990 on this DAC.
It is a very nice, and open sounding op-amp, very well suited to this DAC.
The LME49990 does not oscillate, if 3 good quality foil 1 uF caps are used, coupled directly to the DIP8 pins on the underside of the PCB, +/- and earth.
It may oscillate, because of capacitance in output cables - use 30-50 Ohm series resistance on the output, best way is directly on the protruding feedback resistors.
The LME49990 will overheat if anything over about +/- 10 Volts is applied.
I was using +/- 15 Volts, which will melt the adapter board.
It is rated at +/- 18 Volts, but will need liquid cooling for safe operations at that voltage.
It is a very nice, and open sounding op-amp, very well suited to this DAC.
The LME49990 does not oscillate, if 3 good quality foil 1 uF caps are used, coupled directly to the DIP8 pins on the underside of the PCB, +/- and earth.
It may oscillate, because of capacitance in output cables - use 30-50 Ohm series resistance on the output, best way is directly on the protruding feedback resistors.
The LME49990 will overheat if anything over about +/- 10 Volts is applied.
I was using +/- 15 Volts, which will melt the adapter board.
It is rated at +/- 18 Volts, but will need liquid cooling for safe operations at that voltage.
Hey Guys,
I need your help right now
Currently i'm in the ordering process at mouser electronics for the BOM
Can I swap the 47uf 25v elna ROA Cerafine with silmic 2, as they are available at mouser's??
Further:
Which resistors can i use in the signal part?? They should be available at mouser.
It would be quite cool, if you could give me the part numbers from mouser, because i'm quite a noob..
greetings
knorst
I need your help right now
Currently i'm in the ordering process at mouser electronics for the BOM
Can I swap the 47uf 25v elna ROA Cerafine with silmic 2, as they are available at mouser's??
Further:
Which resistors can i use in the signal part?? They should be available at mouser.
It would be quite cool, if you could give me the part numbers from mouser, because i'm quite a noob..
greetings
knorst