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| author | Ashish Chaudhari <ashish@ettus.com> | 2016-02-18 17:40:47 -0800 |
|---|---|---|
| committer | Ashish Chaudhari <ashish@ettus.com> | 2016-02-18 17:40:47 -0800 |
| commit | 1c2f56bbc1ccd0bffaac8fa4da174d1ad130a3ba (patch) | |
| tree | a6c4fb7f587a6949485717d13cea3e4fa53e3496 /host/docs/sync.dox | |
| parent | 2d68f228888807d0fd76c7b759ec39fd86523f67 (diff) | |
| parent | ed4223d74cab604213b925da2eccb6055aa7aea2 (diff) | |
| download | uhd-1c2f56bbc1ccd0bffaac8fa4da174d1ad130a3ba.tar.gz uhd-1c2f56bbc1ccd0bffaac8fa4da174d1ad130a3ba.tar.bz2 uhd-1c2f56bbc1ccd0bffaac8fa4da174d1ad130a3ba.zip | |
Merge branch 'maint'
Conflicts:
host/lib/usrp/cores/gpio_core_200.cpp
host/lib/usrp/dboard/db_ubx.cpp
Diffstat (limited to 'host/docs/sync.dox')
| -rw-r--r-- | host/docs/sync.dox | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/host/docs/sync.dox b/host/docs/sync.dox index 1789a70a9..5a0870bea 100644 --- a/host/docs/sync.dox +++ 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 |