ADS54J54: Code Group Synchronization

Hiroshi Katsunaga

Part Number: ADS54J54

Hello,

My customer has a question about ADS54J54.

[Q]

Does ADS54J54 transmit K28.5 character when JESD204B receiver (FPGA) set low on SYNCb pin before ADS54J54 receive SYSREF signal ?

Best Regards,

Hiroshi Katsunaga

over 7 years ago

0 jim s over 7 years ago

TI__Guru* 91947 points

Hiroshi,

Per the JESD204B standard, the device will start sending K28.5 characters as soon as it detects a high to low transition on the SYNC input. Since SYSREF is not used in subclass 0 and 2, this is why it cannot be used to start the flow of these characters.

Regards,

Jim

0 Hiroshi Katsunaga over 7 years ago in reply to jim s

Mastermind 6480 points

Hi Jim,

Thank you for your fast response and your clear comments !

OK, I understood your comments.

Thank you for your cooperation.

Best Regards,
Hiroshi Katsunaga

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ADS54J54: Code Group Synchronization