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artiq/artiq
Marius Weber 407fba232d Phaser upconverter: set phase-frequency detector to 62.5 MHz (close #1648)
The suitable PFD clock depends on the use case and will likely need
to be configured by some users. All things being equal, a higher PFD
clock is desirable as is results in lower local oscillator phase-noise.

Phaser was designed around a maximum PFD clock of 62.5 MHz. In integer mode,
with no local oscillator frequency divisor set, a 62.5 MHz PFD clock results
in a 125 MHz local oscillator step size. Given the +-200 MHz range of the DUC
(more if using the DAC mixer), this step size will be acceptable to many.
This seems like the most appropreate default configuration as it should offer
the best phase-noise performance.

Signed-off-by: Marius Weber <marius.weber@physics.ox.ac.uk>
2021-05-08 14:48:47 +01:00
..
applets gui: quamash -> qasync 2020-12-12 21:59:25 +08:00
browser artiq_browser: update h5py api call 2020-12-17 14:23:16 +08:00
compiler compiler: Fix crash with try/finally and stack-return function calls 2021-03-21 01:31:26 +00:00
coredevice Phaser upconverter: set phase-frequency detector to 62.5 MHz (close #1648) 2021-05-08 14:48:47 +01:00
dashboard dashboard: Disable Group CCB policy menu before first entry is selected 2021-03-21 02:04:24 +00:00
examples metlino_sayma_ttl: Fix RTIO frequency & demo code (#1516) 2020-09-03 15:08:31 +08:00
firmware increase memory allocated to comms CPU 2021-02-21 19:06:12 +08:00
frontend ad99xx unified type annotations for cfg_sw() methods and fixed test cases 2021-04-21 11:29:55 +08:00
gateware increase memory allocated to comms CPU 2021-02-21 19:06:12 +08:00
gui gui: Fix occasional wrong fuzzy select menu position on KDE/Linux 2021-04-04 00:04:11 +01:00
language added DefaultMissing to __all__ 2021-04-21 11:42:21 +08:00
master master: refactor experiments enumeration, use tools.get_experiment 2021-02-13 10:06:12 +08:00
sim ttl: Add target RTIO time argument to timestamp/count functions 2018-11-03 20:33:19 +08:00
test coredevice.comm_kernel: Fix unpacking of lists of numpy.int64 2021-04-21 15:46:58 +01:00
wavesynth wavesynth: silence is a channel property (closes #348) 2016-04-07 21:51:29 +08:00
__init__.py simplify versioneer 2020-07-30 00:54:07 +08:00
_version.py simplify versioneer 2020-07-30 00:54:07 +08:00
appdirs.py add appdirs 2016-07-18 16:40:18 +02:00
build_soc.py build_soc: remove assertion that was used for test runs 2020-09-03 20:24:18 +08:00
experiment.py artiq.experiment: merge language and coredevice namespaces 2016-01-25 17:24:00 -07:00
remoting.py artiq_flash: added option of specifying another username when connecting through SSH. (#1429) 2020-02-19 19:44:11 +08:00
tools.py get_experiment() is able to get nested experiment classes using dots in class names. 2021-02-28 14:26:44 +08:00