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Class D Switching Power Amplifiers and Power D/A conversion

Please someone verify TAS5630PHD Board
Please someone verify TAS5630PHD Board
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Old 21st May 2010, 07:21 PM   #1
rajudp is offline rajudp  India
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Join Date: Mar 2005
Location: Kerala
Default Please someone verify TAS5630PHD Board

please someone verify my board it is made in eagle
Attached Files
File Type: pdf TAS5630PHD.pdf (51.5 KB, 149 views)
File Type: pdf TAS5630PHD-bottom.pdf (32.2 KB, 87 views)
File Type: pdf TAS5630PHD-top.pdf (37.1 KB, 89 views)
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Old 22nd May 2010, 03:08 AM   #2
authlxl is offline authlxl  China
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Default Tas5630 pcb problems

I have check your eagle file just ago,For my experience you should attention four key point.

1. TAS 5630 can deliver out so large power,output inductor and capacitor should big enough,common parts used in lower power class D amp not perfect.

19A ripple current for inductor and capacitor.

I think your selected inductor and capacitor not perfect.

2.Pvdd should added at middle line of four energy electric capacitor,otherwise peak swith current not balance,maybe one channel output MOSFET burnt at heavy loader .

3,All the power pcb line and output large current route should smart and smoothness transition zone.forbid route width saltation.


4,Buffer OP amp as near as tas 5630,not suggest divided two board.

other key point you have to attention is heatsink design.but it easy.


I think you will finish one excellent class D amp with TAS5630PHD,if you have other questions,send mail to me.

Last edited by authlxl; 22nd May 2010 at 03:10 AM.
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Old 22nd May 2010, 05:27 AM   #3
rajudp is offline rajudp  India
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Thanks for your advice, I will increase the track width for the power line and output line. The capacitor I selected is 1000uf/63V type, and the inductor I planed for drum core.

I am planning for my sub amp, same input for both channels
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Old 26th May 2010, 02:12 PM   #4
rajudp is offline rajudp  India
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Join Date: Mar 2005
Location: Kerala
add extra tracks for PVDD
Attached Files
File Type: pdf TAS5630PHD-n.pdf (68.9 KB, 83 views)
File Type: pdf TAS5630PHD-N-BOT.pdf (30.1 KB, 64 views)
File Type: pdf TAS5630PHD-n-top.pdf (52.2 KB, 59 views)
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Old 28th May 2010, 08:34 AM   #5
marce is offline marce  United Kingdom
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My major concern is the large slot bisecting the ground on the bottom layer of the board.
For switching circuits it is highly recomended to have a contiguous GND plane with no slots.
This could cause some serious EMC problems, and may stop the circuit working at the optium.
It may not be easy, but wire links would be better than the track that cuts the plane.

http://www.ultracad.com/articles/slots.pdf

Grounding of Mixes Signal Systems

Slots in Ground Planes

Circuit board layout guidelines for Class-D amplifiers | Audio DesignLine
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