Omnisys

• There are a few different activities at Omnisys that may be of your interests.– New correlation spectrometer IC’s.

– New FFT spectrometers

– Future cross correlators

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.

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 FPGA’s and we could configure various forms of cross correlators and we can produce custom hardware in a few months lead time.

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.

Correlators

ODIN (in space...)

IntRad4-8 GHz / 4096 channels

10 W / 493 grams

7.9 GHz CW signal

correlated at 17.2 GHz sample clock

FPGA based

100x160 mm board

Dynamic rangeStability

500 MHz spectra

(S-R)/R after many minutes