I have that DAC in my Teac player. I have tried to find a data sheet on this DAC but they are hidden behind obscure broker sites...
I need to know what kind of output stage it has. It does not appear to be the usual current output you normally see. There is no I/V, instead there is a unity gain follower with a 100 ohm resistor going from the DAC output to the + of the follower.
I did an experiment and fed the DAC outputs though the 100 ohm directly to my preamp which has a cathode follower input (impedance 100:s of Mohms). It appears to work but... could perhaps be done better. (I later added 100k to ground for safety, there is 100V on the other side of the preamp input)
Anyone?
I need to know what kind of output stage it has. It does not appear to be the usual current output you normally see. There is no I/V, instead there is a unity gain follower with a 100 ohm resistor going from the DAC output to the + of the follower.
I did an experiment and fed the DAC outputs though the 100 ohm directly to my preamp which has a cathode follower input (impedance 100:s of Mohms). It appears to work but... could perhaps be done better. (I later added 100k to ground for safety, there is 100V on the other side of the preamp input)
Anyone?
With some nice smilies you will get this translated:
http://service.semic.sanyo.co.jp/semi/dis_pdf_j/LC78820.pdf
The more smilies the better
/Hugo
http://service.semic.sanyo.co.jp/semi/dis_pdf_j/LC78820.pdf
The more smilies the better
/Hugo
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