Electronics > Projects, Designs, and Technical Stuff
Oscilloscope ASIC Kickstarter instead of Open scope.
EEVblog:
--- Quote from: excitedbox on January 11, 2020, 10:51:37 pm ---I am also not gonna spend hours each day arguing with people over which country has the bigger chip industry or the legality of exploiting DRM restrictions on software licenses.
--- End quote ---
That right there is your problem. You can simply chose to ignore such comments and not respond to them. This is how to forum works, you can direct the discussion by only talking about what you want to talk about and ignoring everything else.
iMo:
So what would be a BOM cost estimation for the first version:
1. 2 channels (ie. parts similar to the Rigol 1054) - simple AFE and the 1x 8bit ADC (500M/1G samples/s)
2. an FPGA capable enough to process the data and push the data into say 4x64MB sdrams (thus 64bit data access, max 128MB/sec write speed)
3. 4x 64MB sdrams
4. a high speed USB interface (an MCU or embedded into the above FPGA)
5. 1GHz clock generator
6. voltage regulators
7. R,C,L passives
8. 10x10cm 4 layer pcb
9. 2x input BNC, 1x usb and 1x power connector (5V/0.5A).
EEVblog:
--- Quote from: imo on January 13, 2020, 11:05:48 am ---So what would be a BOM cost estimation for the first version:
1. 2 channels (ie. parts similar to the Rigol 1054) - simple AFE and the 1x 8bit ADC (500M/1G samples/s)
2. an FPGA capable enough to process the data and push the data into say 4x64MB sdrams (thus 64bit data access, max 128MB/sec write speed)
3. a high speed USB interface (an MCU or embedded into the above FPGA)
4. 1GHz clock generator
5. voltage regulators
6. 10x10cm 4 layer pcb
7. 2x input BNC, 1x usb, 1x power connector.
--- End quote ---
That's not a bench oscilloscope. If oyu want to revolutise the bench scope market and get the likes of the big payers to buy in then there has to be substantial cost saving on a proper conventional bench oscilloscope product. Not a bare bones hobby PCB only scope.
iMo:
--- Quote from: EEVblog on January 13, 2020, 11:09:14 am ---.. If oyu want to revolutise the bench scope market and get the likes of the big payers to buy in then there has to be substantial cost saving on a proper conventional bench oscilloscope product. Not a bare bones hobby PCB only scope.
--- End quote ---
I don't want. I want to know what would be a BOM cost "estimation" for the above hobby PCB :)
PS: 1k quantity for example.
aheid:
--- Quote from: imo on January 13, 2020, 11:17:36 am ---I want to know what would be a BOM cost "estimation" for the above hobby PCB :)
--- End quote ---
For reference, the ADC used in the Siglent SDS-1104x (it uses one per pair of channels) is, AFAIK, the HMCAD1511. The per-channel VGA is AD8370 and per-channel ADC driver is ADA4932-1. For two channels, you're looking at about $70 just between those parts.
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