Omnisys

1
Omnisys

• There are a few different activities at Omnisys
  that may be of your interests.
• New correlation spectrometer ICs.
• New FFT spectrometers
• Future cross correlators

2
New correlation spectrometer ASIC

• The new correlation spectrometer ASIC that is
  scheduled for tape out in august have an on-chip
  ADC and covers
• 8 GHz of bandwidth
• 1024 1.5-bit channels
• 0.3 mW/ch/GHz plus 350 mW
• 256, 512, 768 or 1024 channels
• Bandwidth 100 MHz - 8 GHz.
• The ASIC can be used for cross correlation of a
  single baseline but the design as such can be
  used for very advanced cross correlator as well.
• The power consumption and processing bandwidth is
  an order of magnitude better than we have been
  presented.

3
New FFT spectrometer modules

• The new FFT spectrometer modules that has been
  ordered and delivered to a few customers already
• 2 GHz of bandwidth per spectrometer board
• Four inputs are provided on the board
• 4 x 500 MHz and 2x1000 MHz has been demonstrated
• 1 x 2000 MHz in the pipeline.
• The board is based on Virtex-4 FPGAs and we
  could configure various forms of cross
  correlators and we can produce custom hardware in
  a few months lead time.

4
Future cross correlators

• For the future cross correlators, we have closed
  a study of interferometers in geosynchronous
  orbit for aeronomy applications and are
  implementing a demonstrator now.
• The cross correlator should cover up to
• 8 GHz of bandwith over
• 150 cross correlated dual polarisation receiver
  elements.
• It is estimated that this can be accomplished
  within a power budget of 30-50 W with the
  technology available 2010-2012.

5
Correlators
7.9 GHz CW signal correlated at 17.2 GHz sample
clock
ODIN (in space...)
IntRad 4-8 GHz / 4096 channels 10 W / 493 grams
6
FPGA based
100x160 mm board
500 MHz spectra
Stability
Dynamic range
(S-R)/R after many minutes