C5505 Power Supply

Baki Sahin

Dear all,

Customer has an issue with DSP power supply, could you please examine the attached power scheme? Is anything wrong? Unused interface pins grounded, could it be a problem?

Thanks in advance
Best Regards,

Baki

over 11 years ago

0 Sivaraj Kuppuraj over 11 years ago

TI__Mastermind 35645 points

Hi,

Team will address your request shortly.

Thanks & regards,
Sivaraj K

0 Steve Tsang over 11 years ago in reply to Sivaraj Kuppuraj

TI__Mastermind 23785 points

There are few things to point out:

1. USB_MXO and USB_R1 must be left unconnected. Not shown here.

2. DVDDRTC supported are either 1.8V, 2.5V, 2.75V or 3.3V. NOt 1.3V.

3. BG_CAP needs to be bypassed with a 0.1uF capacitor to analog ground (VSSA_ANA) for proper operation.

Also, please rrefer to our schematic checklist for details information for other peripherals:

http://processors.wiki.ti.com/index.php/C5505/15/35_Schematic_Checklist

Regards.

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C5505 Power Supply