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authorDerek Kozel <derek.kozel@ettus.com>2016-02-08 12:16:01 -0800
committerMartin Braun <martin.braun@ettus.com>2016-02-09 14:42:31 -0800
commit176024de72a8fed7846c9e4405c77af7e0ff5270 (patch)
treeb9e22fe827ec774cb981d1da39bb41b23c91400a /host/docs/sync.dox
parent62afbfb7ed4ef441dd4df66db4a1741b927a77de (diff)
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Update docs with lack of UBX phase sync on N210
Diffstat (limited to 'host/docs/sync.dox')
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1 files changed, 2 insertions, 2 deletions
diff --git a/host/docs/sync.dox b/host/docs/sync.dox
index 1789a70a9..5a0870bea 100644
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+++ b/host/docs/sync.dox
@@ -158,11 +158,11 @@ Using timed commands, multiple frontends can be tuned at a specific
time. This timed-tuning ensures that the phase offsets between VCO/PLL
chains will remain constant after each re-tune. See notes below:
+- Phase synchronization with the UBX is only supported on the X3x0 Series
+- Phase synchronization with the SBX works on both N2x0 and X3x0 Series
- There is a random phase offset between any two frontends
- This phase offset is different for different LO frequencies
- This phase offset remains constant after retuning
- - Due to a divider, UBX phase offset will be randomly +/- 180 deg after re-tune on N200/N210.
- On X300/X310, phase sync with UBX fully works.
- This phase offset will drift over time due to thermal and other characteristics
- Periodic calibration will be necessary for phase-coherent applications