AFE58JD18: JESD Interface when fast power down

Ed Gouweloos

Part Number: AFE58JD18

What happens with the JESD interface when the device is placed in fast-power-down?

Is drive strength the same, is it completely shut down or is there something else that is different than in normal operating mode?

Kind Regards,
Ed

over 3 years ago

0 Praveen Aroul over 3 years ago

TI__Mastermind 49176 points

Hello Ed,

We would like to take this discussion offline since the device AFE58JD18 is under NDA.
Can you send your questions to ultrasound_rx-support@list.ti.com along with a reference to this E2E post?

0 Ed Gouweloos over 3 years ago in reply to Praveen Aroul

Intellectual 260 points

I did Praveen

When can we expect an answer?

Best Regards,

0 Chen Kung over 3 years ago

TI__Genius 12025 points

Hi,

Thank you for using AFE58JD18 device.

Please refer to the datasheet on both Table 29 and Table 30,

when you setup PDN_FAST this pin,

All Channels are selected.

that means " All = all channels are powered down"

therefore all the output signals won't be working at all.

Thank you!

0 Chen Kung over 3 years ago in reply to Chen Kung

TI__Genius 12025 points

Hi,

More engineer explained more for you detail information is:

===============

The JESD link is live in the partial power down mode.

===============

Because when you choose PDN_FAST,

the PLL and (digital including JESD) channel outputs are still ON.

But when you choose GLOBAL_PDN,

the PLL and (digital including JESD) channel outputs are all OFF.

Thank you!

0 Chen Kung over 3 years ago in reply to Chen Kung

TI__Genius 12025 points

Hi,

also could you please for using AFE58JD18 jesd

send your questions to the mailing list ultrasound_rx-support@list.ti.com

0 Ed Gouweloos over 3 years ago in reply to Chen Kung

Intellectual 260 points

Hi Chen,

I already did... but now I have sent it again.

Kind Regards,

0 Chen Kung over 3 years ago in reply to Ed Gouweloos

TI__Genius 12025 points

Hi,

This has been submitted.

Thank you!

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AFE58JD18: JESD Interface when fast power down