PGA2310 / CS3310 differential use ?

blu_line · 17th March 2004, 07:31 AM

Hello all,

It seems to be possible to use the PGA2310/CS3310 in differential mode to lower the THD/N.

As i have not figured out how, i'd ask it here !

grtz

Simon

paulb · 18th March 2004, 12:20 AM

Use 2 of them?

blu_line · 18th March 2004, 06:04 AM

Quote:

Use 2 of them?

Since there are 2 in a package, yeah !

SoundOff · 19th March 2004, 03:56 AM

You can just use each PGA2310 package in pseudo-balanced mode, remembering to send the same gain setting to each half. I've just got my breadboard running with balanced stereo operation, and first listening tests are good, but I've only done rough measurements so far. THD+N is still better than the floor of the Neutrik Minirator/Minilyzer (-73dB) so I need to get it on some better test gear.

Each channel is buffered at the input by both halves of an OPA2134, and outputs are direct at the moment.

I've built it this way to keep balanced I/O for studio monitoring gear without having to go unbalanced to control level and then back.

Colin

tagafil · 23rd December 2010, 09:33 PM

plz if u can , send me the circuit of pga2310.

Email: andaz_tagafil@yahoo.com

thanks

tagafil · 23rd December 2010, 09:46 PM

i want a circuit of kenwood a-7x audio amplifire.
any one can help me.
Email:andaz_tagafil@yahoo.com

thanks for all

17th March 2004, 07:31 AM	#1
blu_line diyAudio Member Join Date: Jan 2002 Location: The Netherlands	PGA2310 / CS3310 differential use ? Hello all, It seems to be possible to use the PGA2310/CS3310 in differential mode to lower the THD/N. As i have not figured out how, i'd ask it here ! grtz Simon

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18th March 2004, 12:20 AM	#2
paulb diyAudio Member Join Date: Jun 2001 Location: Calgary	Use 2 of them?

19th March 2004, 03:56 AM	#4
SoundOff diyAudio Member Join Date: Apr 2002 Location: Birdlings Flat, New Zealand	You can just use each PGA2310 package in pseudo-balanced mode, remembering to send the same gain setting to each half. I've just got my breadboard running with balanced stereo operation, and first listening tests are good, but I've only done rough measurements so far. THD+N is still better than the floor of the Neutrik Minirator/Minilyzer (-73dB) so I need to get it on some better test gear. Each channel is buffered at the input by both halves of an OPA2134, and outputs are direct at the moment. I've built it this way to keep balanced I/O for studio monitoring gear without having to go unbalanced to control level and then back. Colin

23rd December 2010, 09:33 PM	#5
tagafil diyAudio Member Join Date: Dec 2010	plz if u can , send me the circuit of pga2310. Email: andaz_tagafil@yahoo.com thanks

23rd December 2010, 09:46 PM	#6
tagafil diyAudio Member Join Date: Dec 2010	i want a circuit of kenwood a-7x audio amplifire. any one can help me. Email:andaz_tagafil@yahoo.com thanks for all

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