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180 Commits

Author SHA1 Message Date
occheung a7dfa03a21 ttl_in/MTD: import time 2022-07-27 15:14:12 +08:00
occheung 440b3ef3df 2118-2128: add t_min info from #26 2022-07-26 18:26:52 +08:00
occheung 7d993a4800 2238: remove min input edge rate 
Updates #48.
 2022-07-26 13:11:23 +08:00
occheung 77d31568b1 5108: specify noise in RMS 
Updates #52.
 2022-07-26 13:10:06 +08:00
occheung df564d2375 5108: remove gain condition for terminated voltage spec 2022-07-25 17:29:26 +08:00
occheung b8e89f4d01 4410/linearity: expected -> ideal 2022-07-25 17:01:03 +08:00
occheung 8138e793d7 7210: cite waveform plot 2022-07-25 16:33:42 +08:00
occheung a14aa89a76 7210: fix specs 
Replaced plot with the one produced by a faster scope (20 GSa/s).
 2022-07-25 16:25:26 +08:00
occheung 5d8dc38db7 7210: clarify on clock in/out format 2022-07-25 14:56:20 +08:00
occheung 688f5fdf23 7210: add phaser clock input to application 
Closes #42.
 2022-07-25 14:30:45 +08:00
occheung 3a6ed63f0a 2118-2128: add RTIO constraint 2022-07-22 17:46:35 +08:00
occheung c1388a53a8 4410: remove dead titles 2022-06-24 11:31:39 +08:00
occheung af0fca61e2 4410: replot voltage measured vs expected 2022-06-24 11:29:40 +08:00
occheung 6d9faa7bb9 4410: add asf vs v_rms 2022-06-23 16:58:16 +08:00
occheung 42cbd9e195 7210: init 2022-06-22 14:53:31 +08:00
occheung 2838213457 fix language 2022-06-17 16:12:27 +08:00
occheung 2d0a866274 2238: add spec on max voltage with term 
Updates #35.
Same termination structure as bnc/sma-ttl card.
Technically the max allowable voltage with termination is a bit higher than 5V.
But it seems that it will still exceed the termination resistor rating limit at 5.5V.
The only method of acquiring V_ds & other parameters is by eye-balling the I-V curve of the MOSFET, which is not precise.
So the calculation assumes V_ds=0, just to be conservative.
 2022-06-17 16:07:21 +08:00
occheung 2964e13102 2118-2128: separate term rating to another spec 2022-06-17 16:06:26 +08:00
occheung 1cf6919ec8 add missing plot in b476c178 2022-06-17 13:34:56 +08:00
occheung 5c44a65d33 5568: init 
There aren't any electrical specs, as suggested by the lack of electronic components.
There is a colored version of the connection diagram, but I think the B&W one actually looks better.
 2022-06-16 16:02:47 +08:00
occheung c1c078671b examples: move SPI examples to spi.py 2022-06-16 16:00:22 +08:00
occheung 9920661516 2245: add dio_spi examples 2022-06-13 17:27:32 +08:00
occheung 8ff606888c 2118-2128: add BNC-TTL front panels 2022-06-09 16:54:00 +08:00
occheung 8c2c9ecfe4 5108: mention possible SMA breakout option 
Updates #13
 2022-06-09 11:51:44 +08:00
occheung 11ee1ebcbd 5518-5528: init 2022-06-08 17:22:55 +08:00
occheung b86eea7611 4410-4412: remove mention of external sync signal distribution 
Updates #38
 2022-06-08 17:21:27 +08:00
occheung ac639b9d1e 2118-2128: add TTLClockGen example 2022-06-07 16:01:18 +08:00
occheung 9bd1412d9c 2118-2128: Add comment to make coarse RTIO cycle clear 2022-06-07 14:36:21 +08:00
occheung 2a5066ac5f 2118-2128: add <8ns short pulse example 2022-06-07 13:49:14 +08:00
occheung f5ce9e19e9 4410-4412: add eem mode docs 2022-06-07 12:46:23 +08:00
occheung fa0de2a72d 5108: add 'ADC' to title 2022-02-14 17:36:05 +08:00
occheung 2a9d7f4f9c 4456: clarify setup for the tests 2022-02-14 11:02:07 +08:00
occheung 75f3a328db 4456: dds -> pll 2022-02-14 10:38:28 +08:00
occheung b476c178d0 2118-2128: add min pulse width spec 
Especially test reuslt that validate the "minimum 3ns pulse width" claim.
 2022-02-08 13:33:55 +08:00
occheung 3ed6a7ccbe 2118-2128: fix data rate spec 
Quoted from the isolator datasheet: "Data rates up to 150 Mbps are supported."
Saying the maximum data rate is at least 150 Mbps is not very accurate.
Updates #36
 2022-02-07 14:41:09 +08:00
occheung d622423675 4456: remove mention to cpld cfg on rf_sw 
As communication to ALmazny mezzanine does not use bitbang anymore, there is very little value for routing LVDS signal.
Also, MUXOUT readout from ADF5356 has an easily understandable API available.
So there should not be any reasons to use EEM[4:8] for anything other than controlling RF switches.
 2022-02-07 14:28:07 +08:00
occheung 2ca8632582 4456: update attenuator API 2022-02-07 14:26:58 +08:00
occheung 6199e4bb5e 4456: fix quotation mark 2022-02-04 17:23:05 +08:00
occheung 1d7e6dc853 4456: init 
Updates #17
 2022-02-04 17:18:15 +08:00
occheung d4387cae18 5108: fix d157dda 
Made the spectrometer thing more stright forward. It really just monitors the laser power in that use case.
 2022-02-04 14:59:30 +08:00
occheung 1b8beee45d 2118-2128: add max data rate spec 
Base on the isolator datasheet, where it stated that "Data rates up to 150 Mbps are supported".
The electrical specific of the datasheet stated the spec differently.
Updates #36
 2022-02-04 14:38:39 +08:00
occheung 7bdc121b6a 2118-2128: add low input min voltage 
-0.5V from absolute rating
 2022-02-04 14:31:30 +08:00
occheung 0b4ad6762e 2118-2128: add high input max voltage 
5.5V from absolute rating
5V max with termination to respect 0.5W rating of the 50R resistor.
Updates #35
 2022-02-04 14:01:22 +08:00
occheung 8864ecaf87 5432: fix card name 
Updates #34
 2022-02-04 13:49:10 +08:00
occheung 656068e151 4410-4412: fix card name 
When the card no. is stated, mention the full name (e.g. 4410 DDS Urukul)
Updates #34
 2022-02-04 13:45:28 +08:00
occheung 47e0c31705 ttl: update direction switches desc 
Updates #33
 2022-02-04 13:30:32 +08:00
occheung d157dda863 5108: update applications 2022-02-04 13:10:31 +08:00
occheung 389b97d9e4 5108: make ADC-Repeaters-EEM path unidirectional 
The only signal that enters the ADC through the repeaters is the SPI clock.
It is only a state/time reference, no meaning info goes through this path.
 2022-01-31 16:39:24 +08:00
occheung 7ea24e32e9 su-servo: mention P1dB impact 2022-01-31 16:27:31 +08:00
occheung 2961557c0a 5108: desc of ARTIQ-PYTHON impact on sample rate 2022-01-31 15:37:46 +08:00