TMS320F2812: Schematic Troubleshooting

Green Deng

Expert 4490 points

Part Number: TMS320F2812

Pls review Our control Board schematic diagram, if have any risk for our design?

The chips we using are TMS320F2812.

over 9 years ago

0 Baskaran Chidambaram over 9 years ago

TI__Genius 17370 points

Hello,
I am writing to let you know that a C2000 team member has been assigned to this post and should be answering shortly.

Regards
Baskaran

0 Green Deng over 9 years ago in reply to Baskaran Chidambaram

TI__Expert 4490 points

Thank you, wish the sooner the better.

0 tlee over 9 years ago

TI__Guru 62975 points

Green,

This generally looks ok. Do you have any specific concerns?

-Tommy

0 Green Deng over 9 years ago in reply to tlee

TI__Expert 4490 points

I test total current about two DSP in our PCBA :

1.8V power, I_VDD(1.8V)+VDD1=359mA

3.3V power, I_ VDDIO(3.3V)+VDDA1/2/IO=156mA

It seemed that the power have exceed the IDDIO(30mA*2)+IDDA(40mA*2)=140mA, if the margin is not enough for 3.3V and 1.8V power in my design, pls note I design a common power supply 1.8V for VDD1 and VDD, 3.3V for VDDA1/2/IO and VDDIO, could you give some suggestion about DSP power margin design?and give some risk about my design DSP running speed.

0 Green Deng over 9 years ago

TI__Expert 4490 points

May someone deal with this question?

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TMS320F2812: Schematic Troubleshooting