Passlabs D1 with DC servo ?

shf1107 · 21st December 2007, 12:08 PM

Hi folks,

By looking in the PCM63 DAC datasheet and datasheets of many other PCMxxxx DACs from Texas (= Burr Brown today),
I can see TI recomends connecting the current output, Iout, to a virtual zero voltage.

Would it be a good idea to add a (very slow regulating) DC-servo to the D1 I/V circuit, to ensure the potential at Iout to stay at zero volts ???

Please refer to attached draft.

Best regards
SHF

Nelson Pass · 21st December 2007, 05:45 PM

I don't see how it would hurt.

diy2000 · 21st December 2007, 11:34 PM

Hi Nelson!!!

Nelson Pass · 22nd December 2007, 12:02 AM

Quote:

Originally posted by diy2000
Hi Nelson!!!

I'm high alright, but not on false drugs!

I'm high on the REAL thing....

powerful gasoline, a clean windshield and a shoeshine!

Babowana · 22nd December 2007, 12:51 AM

Quote:

Originally posted by Nelson Pass

... a shoeshine!

Shoeshine? I have so far thought you need shoewashing only . . .
I was wrong . . .

jacco vermeulen · 22nd December 2007, 07:44 AM

PASS the indian, please, the truck stops HERE.

B-A

[In 1996 Plitron signed a joint venture agreement with Salzer Controls Limited in India to manufacture toroidal transformers for the Indian market and exports.]

Cobra2 · 22nd December 2007, 11:14 AM

Full moon soon... someone here may need this..?

Arne K

hifimaker · 22nd December 2007, 04:26 PM

Quote:

Originally posted by Nelson Pass

I'm high alright, but not on false drugs!

I'm high on the REAL thing....

powerful gasoline, a clean windshield and a shoeshine!

Wow, I did not realize sneakers could be waxed!

The master does indeed have the

to a large bag of tricks.

-David

hifimaker · 22nd December 2007, 04:33 PM

Hey, I recognize this guy!

I believe it's DIYGene after the PASS attorney's finished with him.

-David

jacco vermeulen · 22nd December 2007, 04:46 PM

Well, at any rate it "beats" spending bills at a bondage parlor.

The Works

22nd December 2007, 07:44 AM	#6
jacco vermeulen diyAudio Member Join Date: Oct 2004 Location: At the sea front, just under Rotterdam	PASS the indian, please, the truck stops HERE. B-A [In 1996 Plitron signed a joint venture agreement with Salzer Controls Limited in India to manufacture toroidal transformers for the Indian market and exports.] __________________ Looks like Sponge Bob has killed another thread.

22nd December 2007, 04:46 PM	#10
jacco vermeulen diyAudio Member Join Date: Oct 2004 Location: At the sea front, just under Rotterdam	Well, at any rate it "beats" spending bills at a bondage parlor. The Works __________________ Looks like Sponge Bob has killed another thread.

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21st December 2007, 05:45 PM	#2
Nelson Pass The one and only Join Date: Mar 2001	I don't see how it would hurt.

21st December 2007, 11:34 PM	#3
diy2000 Account Disabled Join Date: Oct 2007	Hi Nelson!!!

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