Re: [casper] ROACH FPGA chips - part number

Hi John, Part numbers: XC5VSX95T-1FF1136C - this is the lowest speed grade, with lead, commercial temperature range. Available today for purchase from Avnet ($2,735.00, 4 wk lead time) or Nu Horizons ($ 2,789.70, 22 in stock in NA). Lead-free is possible and the speed grade could also be a

[casper] Invitation to attend ROACH II Design Review

you have something urgent and short to say. If you have questions, suggestions, or comments, we'd prefer you email them during or after the meeting. Thanks. 5) Presenters: David George(DG), Francois Kapp(FK), Jason Manley(JM), Philip Gibbs(PG) 6) Reviewers: Henry Chen, Alan Langman, Pierre Droz

Re: [casper] Roach outline

Hi Rick, I just posted the Gerbers to the wiki, you can get it from http://casper.berkeley.edu/wiki/Image:Roach103-CAM.zip The readme has a description of the layers. -Francois Rick Raffanti wrote: Does anybody have a drawing of the roach, PCB fab drawing, Gerbers, something? Thanks, Rick

Re: [casper] ROACH basic questions

works, I really appreciate any contributions to my clarification. Thank you in advance! Best, Daniel. -- Dan Werthimer Space Sciences Lab and Berkeley Wireless Research Center University of Calfornia, Berkeley -- Francois Kapp Sub-system Manager Digital Back End

Re: [casper] thermal design of ROACH 2

Hi Jonathan, We have not had a chance to do the same level of detail for ROACH2 yet, although we are working on it. I'll ask Philip to do a ROACH run with your parameters so we can start to form an idea of what would happen. Regards, Francois On Thu, Oct 28, 2010 at 11:28 PM, Jonathan

Re: [casper] new memo - external adjustment for Atmel/e2v interleaved ADC's

, Hong Chen -- Francois Kapp Sub-system Manager Digital Back End meerKAT SKA South Africa Third Floor The Park Park Road (off Alexandra Road) Pinelands 7405 Western Cape South Africa Latitude: -33.94329 (South); Longitude: 18.48945 (East). (p) +27 (0)21 506 7300 (p) +27 (0)21 506 7360 (direct

Re: [casper] casper Digest, Vol 39, Issue 2

Thanks Robert, I'm afraid this confirms my fears that it is frequency dependent and therefore a problem for wideband use. The comment about the ADC083000 is more encouraging though... -Francois On Wed, Feb 2, 2011 at 8:52 PM, Robert F. Jarnot robert.f.jar...@jpl.nasa.gov wrote: Dana, I

Re: [casper] ZDOK+ Layout?

Hi Dan, The 6367555-1 is the right one. It's the same as the 1367555, but more RoHS compliant. It has the utility Contacts on the side in addition to the 40 pairs on the 1367130-1. Regards, Francois On Thu, Feb 17, 2011 at 7:13 PM, Daniel S. Klopp dkl...@nrao.edu wrote: I am designing a

Re: [casper] ZDOK+ Layout?

A follow up question. From the data sheet I've found concerning the 6367555-1, it is not clear what (if anything) the utility contacts need to be attached to. What I read seems like a suggestion that is open to the end application. Can someone enlighten me please? Hi Dan, Yes, it is

Re: [casper] The casper library status

-4515 Fx 61-2-9372-4310 Mob 0406 421 776 www.atnf.csiro.au -- Francois Kapp Sub-system Manager Digital Back End meerKAT SKA South Africa Third Floor The Park Park Road (off Alexandra Road) Pinelands 7405 Western Cape South Africa Latitude: -33.94329 (South); Longitude: 18.48945 (East

Re: [casper] KatADC

://www.oxforddictionaries.com/page/145 -- Francois Kapp Sub-system Manager Digital Back End meerKAT SKA South Africa Third Floor The Park Park Road (off Alexandra Road) Pinelands 7405 Western Cape South Africa Latitude: -33.94329 (South); Longitude: 18.48945 (East). (p) +27 (0)21 506 7300 (p) +27 (0)21 506

Re: [casper] ROACH and ADC RFI tests

enclosure in addition to our shielded equipment room. Thanks to Carla Beaudet at NRAO for the testing. (If anyone has anything they'd like us to test in the chamber, let me know.) John -- Francois Kapp Sub-system Manager Digital Back End meerKAT SKA South Africa Third Floor

Re: [casper] Roach I Board Power Requirements

, 3.3V, 2.5V, 1.8V, 1.5V, 1V and 1.2V aux rails. Is there any specification of what maximum currents we need to supply for each voltage? Thanks, Joe -- Francois Kapp Sub-system Manager Digital Back End meerKAT SKA South Africa Third Floor The Park Park Road (off Alexandra Road) Pinelands

Re: [casper] Gerbers for ROACH

* -- Francois Kapp Sub-system Manager Digital Back End meerKAT SKA South Africa Third Floor The Park Park Road (off Alexandra Road) Pinelands 7405 Western Cape South Africa Latitude: -33.94329 (South); Longitude: 18.48945 (East). (p) +27 (0)21 506 7300

Re: [casper] 1-2 GHz sampler

. -- Francois Kapp Sub-system Manager Digital Back End meerKAT SKA South Africa Third Floor The Park Park Road (off Alexandra Road) Pinelands 7405 Western Cape South Africa Latitude: -33.94329 (South); Longitude: 18.48945 (East). (p) +27 (0)21 506 7300 (p) +27 (0)21 506 7360 (direct) (f) +27

Re: [casper] ROACH hardware failures

was traced to the +1 volt supply MOSFET switch. Replacing that mosfet fixed both roaches. Kudos to Jason Ray for finding the problem originally. John -- Francois Kapp Sub-system Manager Digital Back End meerKAT SKA South Africa Third Floor The Park Park Road (off

Re: [casper] KATADC attenuators

of hardware failure but I thought I'd better check if there was some jumper setting or control bit that I don't know about. With thanks and best regards, Tom -- Francois Kapp Sub-system Manager Digital Back End meerKAT Team founder: Team SKA Africa http://www.facebook.com/Team.SKA.Africa http

Re: [casper] Vitesse data sheets and NDAs

85721 fax 520-621-5554 -- Francois Kapp Sub-system Manager Digital Back End meerKAT Team founder: Team SKA Africa http://www.facebook.com/Team.SKA.Africa http://teamskaafrica.wordpress.com/ http://www.givengain.com/activist/87536/projects/3987/ SKA South Africa Third

[casper] Altera + Intel

interesting to see Xilinx's response. -F -- Francois Kapp Sub-system Manager Digital Back End meerKAT SKA South Africa Third Floor The Park Park Road (off Alexandra Road) Pinelands 7405 Western Cape South Africa Latitude: -33.94329 (South); Longitude: 18.48945 (East). (p) +27 (0)21 506 7300 (p

Re: [casper] Roach Conduction Cooling

the ROACH1 or ROACH2? Any leads would be extremely helpful. Sincerely, Brad Dober Ph.D. Candidate Department of Physics and Astronomy University of Pennsylvania Cell: 262-949-4668 -- Francois Kapp Sub-system Manager Digital Back End meerKAT SKA South Africa Third Floor

[casper] Fwd: [saastronomers]

Position at the CHPC in Cape Town. Please distribute and contact Catherine catherine.cr...@gmail.com directly if anyone is interested. -Francois -- Forwarded message -- From: Catherine Cress catherine.cr...@gmail.com Date: Tue, Aug 20, 2013 at 8:49 AM Dear All The Centre for

Re: [casper] PPC life time buy: please respond if you anticipate needing ROACH1 or ROACH2 boards

Dear Casperites, Just a reminder to indicate your interest in ROACH/ROACH2 in the future on this survey: http://www.surveymonkey.com/s/ZG7T98F We are going to close the survey soon. Regards, Francois On Mon, Sep 23, 2013 at 7:43 PM, Alec Rust alec.r...@ska.ac.za wrote: Dear Casper

[casper] Position at Rhodes University

Anyone interested in a research/teaching position in Physics/Electronics at Rhodes University in South Africa, please follow this link: http://www.ru.ac.za/jobs/currentvacancies/academic/name,96161,en.html +Francois

[casper] Vacancies at SKA South Africa

Apologies for the (once only, I promise) spam, but we are hiring at SKA South Africa. The vacancies are listed on our parent organisation's web site (the National Research Foundation), here: http://nrfinter.careerjunction.co.za/ Positions are for participation both in MeerKAT and our work

[casper] Fwd: [nrfannounce:354] Recruitment@NRF

Position for a Pulsar Astronomer at our sister organisation HartRAO in South Africa. [image: Description: http://www.nrfcoms.info/NRFrecuitment/images/recuitmentLogo.jpg] The following post is advertised: Position: Astronomer - Pulsars To apply: Click here

[casper] First Announcement: CASPER Workshop 2016 in Cape Town

Dear Casperites, We are delighted to announce that the 2016 CASPER workshop will be held in Cape Town from 25 - 29 January 2016. We are planning a visit to the MeerKAT telescope site for the weekend of 29-31 January, so keep that in the diary if you are interested to join us. The details for

[casper] CASPER workshop 2016

Dear all, Another reminder of the CASPER 2016 workshop, which will be held in Cape Town at the University of Cape Town from 25 to 29 January 2016. We are also planning a bus trip to the MeerKAT site from 29 to 31 January. There is some more information on the wiki:

[casper] Research Position in Cape Town

Research Officer in Digital Signal Processing wanted: http://www.uct.ac.za/usr/about/intro/vacancies/researchpass/2015/EBE_15124_RO_DSP_Elec.pdf

[casper] Registration now open for CASPER 2016

Invitation to CASPER2016 - Collaboration for Astronomy Signal Processing and Electronics Research The 2016 Collaboration for Astronomy Signal Processing and Electronics Research (CASPER) workshop will be held in Cape Town from 25 - 29 January 2016. The details for the workshop are available on

Re: [casper] Pulsar backends

Spot on Justin. Documentation is still a little scarce and what we have (requirements specifications, etc.) may be hard to interpret. What exists to date is a boresight single beam system, soon to be upgraded to the four beam system Justin mentioned. We are open to setting up calls to discuss

Re: [casper] Quick prototype platform

The timing and availability might be a factor, but it would be great if "someone" had the energy to "CASPER-ise" a Xilinx RFSoC development board. They have up to 16 ADC's that may be overkill in the sample rate department, but it is an interesting platform. Maybe development boards are

Re: [casper] Hardware/Yellow Block Porting Workshop - 30 July - 3 August, SAAO, Cape Town

Do you want to add the Protea/Marriot hotel as a suggestion? It's very close to SAAO for those who can foot the bill... http://www.marriott.com/hotels/travel/cptmw-protea-hotel-cape-town-mowbray/ On 27 February 2018 at 13:23, Adam Isaacson wrote: > Hi Casperites, > > Thanks

Re: [casper] quantum entanglement sensing using high-speed digital sampling and cross-multiplies

four ADC's on the > board, > > or break it up into four pieces of 5 GHz each and use all four ADC's. > > > > another, less expensive solution is to break your 20 GHz band up into > eight pieces of 2.4 GHz each, (and loosing a bit of the 20 GHz), > > then you could use

Re: [casper] quantum entanglement sensing using high-speed digital sampling and cross-multiplies

Hi Neil, Second question first - you can access CASPER technology from anywhere. The software licensing may be different if you do not get academic discounts from Mathworks, and Xilinx may also charge you something depending on your exact situation. Both companies are generous to academic users.

Re: [casper] ROACH-2: Identifying Spurs in FFT of Noise Spectrum

Hi Benjamin, I haven't read the full thread, so not sure if you detailed sampling frequencies, etc., but in our testing of ROACH and ROACH2, we found the biggest culprit to be a bus signal that never leaves the PowerPC, and (if memory serves) causes the biggest spur at 133 MHz (and of course

Re: [casper] low cost academic xilinx RFSOC board - feb 28 tutorial 8am pacific

Hi Colm, We discussed this and it appears that only two of the ADC's and DAC's will be routed to connectors, hence the 2x2. Dan has already asked Xilinx whether there is any scope to bring additional channels out to headers or other low cost connectors. We await an answer. Regards, Francois

[casper] CASPER Advisory Board

Dear casperites, As we gradually emerge from the 2 year pandemic imposed hiatus of almost everything, this is a long overdue message to announce that I have taken over as chair of the CASPER advisory board from Jack Hickish. I want to take this opportunity to thank Jack for the years that he was

[casper] Vacancy at OVRO

This is a little off-topic, but in case anyone is interested or aware of someone who is, there is a vacancy at OVRO for a full time electronics engineer: Position Description (taleo.net) -- You received this

Re: [casper] Help with setting up RFSoC

Also look into whether your institution is registered under the Xilinx University Program - if so, Xilinx are generally amenable to donating licenses. Cheers, Francois On Thu, Oct 5, 2023 at 3:13 AM Jack Hickish wrote: > I _think_ that's all you need. > > FYI - you can probably get a 30 day

[casper] CASPER Workshop 2022 - Extension of Early Bird Registration

Hi all, Thanks to all who have already registered to attend this year's CASPER workshop in Sardinia. It is exciting to be planning in-person events again and we also welcome the people who have registered to attend remotely. There were a few people who reported problems with the payment of the

Re: [casper] viability of VCU128 eval board as production CASPER instrument

Hi Jonathan et al, To close an open question: At SARAO we do not intend to pursue a SKARAB2, for the same cost inconsistency you mentioned. Instead, we are CASPER-ising Xilinx Alveo boards, which are intended for production, albeit in a data centre environment. Our intention is to further

[casper] Opportunity: Hosting of the CASPER 2023 Workshop

Dear Casperites, Through a combination of (happy) circumstances, the opportunity to host the 2023 CASPER workshop has become available. If you think your institution might be interested, please get in touch with the advisory board via casper-advisory-bo...@lists.berkeley.edu (cc'd), or me

[casper] Commissioning Scientist Positions at SKA (Aus)

Hi all, There are a number of commissioning scientist positions available for SKA Low - see link: https://recruitment.skao.int/vacancy/commissioning-scientists-545230.html Contact the SKAO for further information and feel free to pass on to others. Regards, Francois -- You received this