ADS52J90 input pin connections...

Amanda Ross95

Other Parts Discussed in Thread: ADS52J90

When using the ADS52J90 device in 16 channel and JESD output mode with 4 JESD outputs, how should inputs be configured?

Should we use (IN1, IN2, IN3....IN16) or only odd (IN1, IN3, IN5...IN31)?

The data sheet shows different connections for 16 channel and JESD and just want to confirm which is correct under the given circumstances.

I was also wondering what the exact jitter input requirements are for the ADS52J90 ref clock?

Thanks for your time,

-Amanda

over 8 years ago

0 Praveen Aroul over 8 years ago

TI__Mastermind 49906 points

Hi Amanda,

I have assigned the post to the device apps expert. He will get back to you soon.

0 Chuck Smyth over 8 years ago

TI__Expert 6320 points

Amanda,

When using the ADS52J90 device in 16 channel and JESD output mode with 4 JESD outputs, how should inputs be configured?

Should we use (IN1, IN2, IN3....IN16) or only odd (IN1, IN3, IN5...IN31)?

The data sheet shows different connections for 16 channel and JESD and just want to confirm which is correct under the given circumstances.

I was also wondering what the exact jitter input requirements are for the ADS52J90 ref clock?

0 Chuck Smyth over 8 years ago in reply to Chuck Smyth

TI__Expert 6320 points

Amanda,

Sorry, I don't know what happened to my in-line answers. In 16ch mode, only the odd input channels are used (see table 1 of the datasheet). This is independent of LVDS or JESD mode.

For the jitter requirement, please see this app note: www.ti.com/.../SLYT075.

Thanks,

Chuck Smyth

0 Amanda Ross95 over 8 years ago in reply to Chuck Smyth

TI__Intellectual 2740 points

Thank you for all your help Chuck!

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ADS52J90 input pin connections...