Hi Mark_O!
Thanks for your analysis.
However, I saw there're other members in Hantek 6000BE series, like 6052BE, 6082BE.
Aren't they the same family?
Yes, you are correct. I had forgotten about those. Thanks for reminding me. Also their 6102BE and 6212BE, at least on their One-Drive SDK web page (I've never seen them elsewhere, probably because they're priced over $1,000!). They are in the same "family", as in 6000BE-series, and share the same case, connectors. etc. Though I'm not sure they share the same boards, since I haven't seen inside one. But I would be extremely surprised if they did.
However, they do differ significantly in that they have on-board capture memory (32k of static RAM per channel) which the 6022 lacks (only a couple kB on the Cypress USB chip, though Hantek deceptively advertises a meg). And much faster ADCs, and a separate hardware trigger section. I'm sure they must have an FPGA of some sort, which the 6022BE lacks. And a different front-end circuit. It may be that the major thing they share is their cases. The lowest model upscale is the 6052BE, which generally goes for about
3 times as much as the 6022BE.
Totally different API to talk to the 6052BE than the 6022BE. Different Driver, etc. Completely incompatible. The user app software for the 6022BE also won't run on the 6052BE, and vice-versa.
[OK, now I have seen inside.
http://sigrok.org/wiki/Hantek_6052BE Different front ends, different ADC chips, added external RAM, Xilinx Spartan FPGA running the show, Cypress chip handling the USB link. Completely different PCB. Speculations confirmed.]
As I suspected, the only thing they really share is their cases, and thus their PCB size/shape. So getting back to the family-tree issue, I'd say no, they're not actually in the same family. The 6022BE/BL are unique (the 6022BE is a 6022BL, with a few parts unpopulated on the PCB). And the BL would be a lot more interesting if the logic analyzer and DSO could be run simultaneously, rather than shutting down one to run the other. The real "family" is the 6052/6082/6102/6212BE. The 6022BE isn't truly related.
Thanks for bringing up the question, Jack. I learned something new.