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For Sale Chiurutu I2S input R2R ladder DAC PCB

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Spev

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Joined 2005
#1
Bought to experiment with and no longer required.

There's a thread about these boards here:

B

Thread 'Italian R2R ladder DAC, no CPID/DSP'

Has anyone tried this r2r dac from an Italian guy?

It uses only discrete logic - (74hc74 and 74hc595) so no cpld or dsp) and stops the clock after the data is transferred. It came with TL082 opamps which will be replaced with LME49720 or OPA2134.

The price is low enough for me to buy one but haven't tried it yet as I haven't finished assembling my LiPO4 power supply.

I2s source is from a standard DIR9001 spdif interface.

https://www.ebay.co.uk/itm/325231264279

I will shortly be doing a comparison of my dual TDA1541 dac, my quad balanced AD1862 and the above and also a Cambridge...
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Requires a +5v and +12 to 15v supply. I used a silentswitcher, which was perfect for the job. I swapped the included 22uf output tants for vishay bc122 solid aluminium 33uf, just because I like these as coupling caps in other builds. There's plenty of pad options on the board to try other cap types. I only had a single 2 and 3 way block to hand, hence why they are mismatched.

£50 posted in uk, international postage at cost.


 
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