Hi Francois,
The katADC bandwidth is enough for my application, because my
Intermediate Frequency (IF) is 260MHz, and the region of interest is
<50MHz bandwidth around the IF. After digitize the IF, I will
down-convert the signal, apply some filters and packetize the data.
I had been talking with Mr. Mo of Digicom about the katADC. He have not
prices or lead times yet, but he expect to figure out this soon.
Final questions, did you have timing issues (TRACE report) using the
1.5GHz in the ADC clock? What is your clock selection in MSSGE?
Thanks again,
--
Luis A. Quintero
NAIC Arecibo Observatory
On 09/15/2010 02:36 PM, Francois Kapp wrote:
Hi Luis,
A couple of things to note with the katADC:
1. The analogue band is only good from about 10MHz up to 650MHz. You
can populate a wider band front end but that hasn't been tested yet.
It sounds like this would not be a major problem for you.
2. They have so far only been produced in South Africa and you would
have to inquire with Mo if he is ready to make them.
In terms of performance and programmability - for a 50MHz band these
will both work fine and they are fully supported in the tool-flow, so
no problems there. More characterisation data is available for katADC
than is on the wiki - let me know and I will get you access.
-Francois
On Wed, Sep 15, 2010 at 8:09 PM, Luis Quintero<[email protected]> wrote:
Hi all,
I am looking for a dual channel (single pixel, dual pol antenna) 8 bits
iADC, and my options are the ADC2x1000-8 (v1.1, 2x1Gsps) and the KatADC
(2x1.5Gsps). The bandwidth is more than enough for my application (radar,
<=50MHz bandwidth). But, I am considering ~Gsps sampling rate in order to
use this system in other applications (e.g. spectrometer).
I wonder if someone has experience comparing these iADCs in terms of
performance and/or programmability (almost the same, I think...). For now,
the KatADC is my best choice; the RF front-end offers a lot of flexibility.
But I would like to know if this iADC has any issues.
Finally, any comment about the ADC2x550-12 (2x550Msps, 12bits) or
ADC2x400-14 (2x400 Msps, 14bits). The wiki does not have much information
about these boards.
Thanks,
--
Luis A. Quintero
NAIC Arecibo Observatory
