AFE7070: Function of D13 Pin

Phillip Radner

Prodigy 30 points

Part Number: AFE7070

Tool/software:

Hello

I have a strange behavior when using the Digital Interface Bits, when I set the MSB D13 RF Power drops significantly.

Is it possible that the Chip interprets this Pin as sign?

Phillip

8 months ago

0 Rob Reeder 8 months ago

TI__Mastermind 41440 points

Hi Phillip,

Can you please clarify what you mean by "when I set the MSB D13".

Regards,

Rob

0 Phillip Radner 8 months ago in reply to Rob Reeder

Prodigy 30 points

Hi Rob

I use the NCO of the chip and the parallel data input for amplitude control. As soon as I set the D13 (Pin 9) output power drops significantly, like 30 dB or more.

Phillip

0 Rob Reeder 8 months ago in reply to Phillip Radner

TI__Mastermind 41440 points

Hi Phillip,

Without using the NCO, does the output look correct when D13 is used?

Regards,

Rob

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AFE7070: Function of D13 Pin