adau1466 pin 73 connected to ground ?
Hi,
I look at the adau1466 connection schematic (in order to later integrate the adau1466 in my own designs), shown on page 28 of the Eval-ADAU1466A Evaluation board.
This diagram shows that the pin 73, named "EP" is connected to the ground.
Provided that the adau1466 has only 72 visible pins, I would like to be sure that this pin #73 is the square located at the back of the adau1466 ?
Does this mean that I should design my PCB in a way where the square back of the DSP is connected to the ground plane using vias ?
Thank you
Audio Signal Processors
hardware
SigmaDSP Audio Processors
adau1466
Hello Nounours18200,
Nounours18200 said:
This diagram shows that the pin 73, named "EP" is connected to the ground.
The Pin 73 EP is nothing but an exposed pad. It is for improved heat dissipation.
Nounours18200 said:
Provided that the adau1466 has only 72 visible pins, I would like to be sure that this pin #73 is the square located at the back of the adau1466 ?
Yes, that is the exposed pad. It will mostly be grounded in any IC/chip, but it's a good practice to verify it in the respective IC's datasheet before grounding.
Nounours18200 said:
Does this mean that I should design my PCB in a way where the square back of the DSP is connected to the ground plane using vias ?
As you saw, in our eval board it was grounded. so, you can ground it in your design. Please refer our datasheet (page 197) below for more info.
www.analog.com/.../adau1462-1466.pdf
Regards,
Harish
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