Where can I find information on how sample data is packed for the various JESD configurations on the AD9208, similar to tabel 17 for the AD9625?
Is there a new revision of the AD9208 data sheet scheduled ( it is still rev 0 on the web site)?
The AD9208 datasheet has two examples. See pages 76 and 77 of the Rev0 datasheet. Does this help?
How do these two examples relate to the various formats shown tables 33 and 34, where HD can be 1 or 0, M can be 8, N' can be 12 or 16 and F can be something other than 1 or 2?
Example 1 shows the default setup in full BW mode whereas example 2 shows one with DDCs turned on, where M = 4 and F = 2. You can also look at figure 142 of the AD9689 datasheet to see an example where M = 4 and F = 4. What specific use case are you using?
I need to make this as general as possible for the end-user so that they can use whatever configuration best suits their need. Whilst t I didn’t intend implementing every mode initially, I certainly intended doing several especially for the M=4 and 8; my expectation is that I will be asked for additional modes in the future. It doesn’t seem unreasonable to expect this information to be available rather than having to spend time trying to figure this out from the hardware, using something like the test ramp as a data source.On the question of the ramp, am I right in thinking that there is a marker pulse inserted in the ramp every 64 samples (so it reads 0x00DC, 0x00E0, 0x00E4, 0x00E8, 0x00EC, 0x01F0, 0x01F4, 0x01F8, 0x01FC, 0x0100, 0x0104, 0x0108 .. etc.) ?
Yes, it certainly is possible to expect this information in the datasheet. However, if you compare the supported modes between AD9625 and AD9208, the AD9208 supports way more modes than the AD9625. It is going to be a very busy table if one were to incorporate it.
For the ramp the test mode in the table shows the ramp pattern.
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