Burr Brown PCM65

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#2
I believe they were made for pioneer electronics . And your absolutely right about information availability.. zip..
Probably going to have to find out what pioneer model uses this DAC and get a service manual .That should have the info you seek.
Dave
 
#5
It is not the pcm56.

This chip has 64 pins and it must be the biggest BB dac chip that I ever seen in my life - about twice the size of a pcm63.

I am trying to get in touch with the right chap in TI for a copy of the datasheet.

I was told that the Pioneer PD-91 and some Sony cdps use this dac chip.
 
#6
Check out the dual pcm65 on the right side of the PD-91.

I see 4 trimmers at the side of each dac chip presumably for MSB adjustments.
 

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#7
Here is info on the BB PCM65

I dug up the PD91 service manual at my shop, and took a couple of quick hi-res pics of the PCM65 dac stage. I can't get it small enough to post here without losing legibility, so tell me if you want me to email the files. It's a rather unusual looking chip, judging by it's peripheral needs. I can do a proper scan of the whole schematic if anyone here needs it.
 
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