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Old 1st December 2006, 09:51 PM   #1
PMA is offline PMA  Europe
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Default "Bivoj" - the new chipamp

Hello guys,

"Bivoj" - the new chipamp was born. Please see the attached image.

Cheers,
Pavel
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Old 1st December 2006, 10:04 PM   #2
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Hi PMA,

Nice build!
I suppose:
http://focus.ti.com/lit/ds/symlink/opa549.pdf

How does it sound?
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Old 1st December 2006, 10:09 PM   #3
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Hi For Fun,

I needed an amp for mz notebook.

Sounds great , notebook + USB SB 24bit Live! + Bivoj + Jamo E600
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Old 1st December 2006, 10:14 PM   #4
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Quote:
Sounds great , notebook + USB SB 24bit Live! + Bivoj + Jamo E600
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Old 1st December 2006, 10:16 PM   #5
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From datasheet:
For 20kHz it has positive PSSR of 20dB and THD of 0.2%.
Typical total questient current is 26mA and slew rate at G=1 is only 9V/us.
Pavel, why did you choose this one
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Old 1st December 2006, 10:23 PM   #6
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Asked BB for samples 3 years ago. Found them recently in my stock and it took me some 15 minutes to prepare PCB files now
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Old 1st December 2006, 10:29 PM   #7
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Old 2nd December 2006, 12:08 AM   #8
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Yeah, the OPA549 is a nice chip - my current project:
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Old 2nd December 2006, 05:33 AM   #9
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Al -
nice job! But do not hijack my valuable thread

How did you make your PCB?
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Old 2nd December 2006, 06:00 AM   #10
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Obviously He nibbled the copper off! mouse teeth continuously grow and need to be worn down by constant nibbling.
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