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Post by DaveC on Aug 9, 2014 8:30:11 GMT
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Post by MartinT on Aug 9, 2014 8:53:03 GMT
Nice component, Dave. The noise performance looks good and the transient response is nice. Have you used them?
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Post by DaveC on Aug 9, 2014 9:16:57 GMT
Not yet, I'm going to order a few dev boards on Monday.
It could revolutionise DIY as it seems to do absolutely everything including 1A ! I think the only issue is heatsinking if used at high current.
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Post by Dave on Aug 9, 2014 9:44:16 GMT
Bloody hell that's impressive. Keep us posted please Dave...
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Post by MartinT on Aug 9, 2014 10:22:55 GMT
I think the only issue is heatsinking if used at high current. Agreed, being an SMD it's only going to take a limited amount of dissipation with an add-on heatsink unless you go down the route of heat pipes and such. |
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Post by DaveC on Aug 9, 2014 10:59:02 GMT
The primary heat conduction path for the QFN (RGW) package is through the thermal pad to the PCB. The
thermal pad should be soldered to a copper pad area under the device. This pad area should then contain an
array of plated vias that conduct heat to any inner spreading plane areas or to a bottom-side copper plane.
That would work. I think it's more useful for DAC's and preamplifiers rather than high current. In fact where places really need low noise.
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Post by MartinT on Aug 9, 2014 11:29:40 GMT
Hmm. That gives me an idea...
Even batteries have noise, don't they?
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Post by Stratmangler on Aug 9, 2014 11:41:12 GMT
The primary heat conduction path for the QFN (RGW) package is through the thermal pad to the PCB. The
thermal pad should be soldered to a copper pad area under the device. This pad area should then contain an
array of plated vias that conduct heat to any inner spreading plane areas or to a bottom-side copper plane.
That would work. I think it's more useful for DAC's and preamplifiers rather than high current. In fact where places really need low noise. That's better - I can read it now! The colour it was in was doing my eyes in .... |
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Post by DaveC on Aug 9, 2014 12:52:35 GMT
Yes, in my experience batteries exhibit electrical noise from the chemical activity. And usually they need a regulator which sort of defeats the whole point, even if it was valid ? My Meguro MN-446 Noise Meter www.soundhifi.com/test.html has as the bottom range 10uv FSD and can be used as a preamplifier for other equipment. So when the boards arrive I can check them out. |
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