I'm having trouble following what is considered a Link in the AD9691. On page 49 of the datasheet:
The AD9691 has one JESD204B link. The device offers an easy
way to set up the JESD204B link through the quick configuration
register (Register 0x570). The serial outputs (SERDOUT0+/-} to
SERDOUT3+/-}) are considered to be part of one JESD204B link.
Note that only SERDOUT0-3 are mentioned. What about SERDOUT4-7? Are these part of the one JESD204B link, or are these considered a second link?
Similarly, on pg 44 of the datasheet:
The AD9691 JESD204B data transmit block maps up to two
physical ADCs or up to eight virtual converters (when DDCs
are enabled) over a link. A link can be configured to use one,
two, or four JESD204B lanes.
This statement only accounts for 4 of the 8 SERDOUT pairs. Does this mean that there are actually 2 links of up to 4 lanes??
This statement seems to be in conflict with the statement from page 1:
Users can configure the Subclass 1 JESD204B-based high speed
serialized output in a variety of one-, two-, four- or eight-lane
Also, Pg 44 also states:
L is the number of lanes per converter device (lanes per
link) (AD9691 value = 1, 2, or 4)
However, Table 25 on pg 49 shows L = 1,2,4 or 8.
One further comment from page 69. Register 0x58B, bits 2:0 show the L setting. Value 111 is stated as indicating "7 lanes". Surely this actually indicates 8 lanes??