Author Topic: ATTEN ADS 1102CAL photos  (Read 20943 times)

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Offline bxs

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ATTEN ADS 1102CAL photos
« on: July 01, 2011, 09:19:46 AM »
Hi,

« Last Edit: July 01, 2011, 09:22:01 AM by bxs »

Offline ivan747

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Re: ATTEN ADS 1102CAL photos
« Reply #1 on: July 01, 2011, 09:22:08 AM »
Welcome to the forum!
Any thoughts about the quality of the scope? At first glance it looks like a competitor of the Rigol DS1052E. I will take a more in depth look at this scope and compare it to the Rigol.
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Offline bxs

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Re: ATTEN ADS 1102CAL photos
« Reply #2 on: July 01, 2011, 09:24:49 AM »
Some more  ;)

Offline bxs

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Re: ATTEN ADS 1102CAL photos
« Reply #3 on: July 01, 2011, 09:31:40 AM »
Welcome to the forum!
Any thoughts about the quality of the scope? At first glance it looks like a competitor of the Rigol DS1052E. I will take a more in depth look at this scope and compare it to the Rigol.

Not really sure, have it for some days, but didn't test it yet  ;D, lack of time.

I need a scope to have here at home, and just searched to cheap ones, this one come already at 100MHz 1Gsps, and a bigger LCD, the RIGOL comes at 50MHz, so...

The same scope exist with at least another brand name, so, the same story, Chinese clones clones clones clones  :D

Offline armandas

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Re: ATTEN ADS 1102CAL photos
« Reply #4 on: July 01, 2011, 06:30:51 PM »
Interesting fuse on the PSU board. I wonder what its current rating is.. :)

Offline mikeselectricstuff

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Re: ATTEN ADS 1102CAL photos
« Reply #5 on: July 01, 2011, 06:40:27 PM »
Interesting fuse on the PSU board. I wonder what its current rating is.. :)
Is there another fuse, e.g. at the mains inlet?
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Online tinhead

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Re: ATTEN ADS 1102CAL photos
« Reply #6 on: July 01, 2011, 09:57:26 PM »
this is actually the new PCB revision using Altery Cyclone IV already, which from FPGA speed7stability, clock jitter and waveformdistortion didn't really matter because Cyclone III and Cyclone IV
are not different in this category, but the board is a universal board for CAL and CML model - so with additional SRAM chip and (probably) different firmware you can "update it" to CML model.

About the cloning thigns - actually most chinese DSOs are using almost the same input stage (from 40 to 300MHz), there is not reason why they should
not do this, that's not cloning at all. Sure Atten CAL/CML board looks very similar to Rigol E board (except the LCD controller whish need to be different due LCD size)
but hey, that's only piece of silicon, the programming matters (FPGA, CPLD, DSP), there are billions of way to win or screw up the DSO design.

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Offline saturation

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Re: ATTEN ADS 1102CAL photos
« Reply #7 on: July 01, 2011, 10:00:05 PM »
Thanks for taking the tear downs,  it'll take a while to study the pics.  I noticed the name Siglent on the PCB, a brand Atten tried to push but it seemed to go nowhere; Atten doesn't bother erase the chip markings, making it easier to identify.

Best Wishes,


Saturation

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Re: ATTEN ADS 1102CAL photos
« Reply #8 on: July 01, 2011, 10:21:27 PM »
btw, there is one important difference between Rigol and ATTEN CAL/CML - ATTEN doen NOT use EEPROM connected
to DSP, so potential hack by replacing the whole firmware could be much easier .. of course if you get somewhere
ATTEN firmware (CML or higher bw CAL models)
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Offline bxs

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Re: ATTEN ADS 1102CAL photos
« Reply #9 on: July 02, 2011, 04:40:32 AM »
Interesting fuse on the PSU board. I wonder what its current rating is.. :)

Well, I also had problems trying to figure that, don't know why  ;)

Is there another fuse, e.g. at the mains inlet?

Yes, you must have some powers  :)

« Last Edit: July 03, 2011, 06:18:26 AM by bxs »

Offline bxs

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Re: ATTEN ADS 1102CAL photos
« Reply #10 on: July 02, 2011, 05:05:17 AM »
(...)the board is a universal board for CAL and CML model - so with additional SRAM chip and (probably) different firmware you can "update it" to CML model.
(...)the programming matters (FPGA, CPLD, DSP), there are billions of way to win or screw up the DSO design.

Probably in CML board the IC footprint right of FPGA is populated.

And I'm with you at the programming thing.

btw, there is one important difference between Rigol and ATTEN CAL/CML - ATTEN doen NOT use EEPROM connected
to DSP, so potential hack by replacing the whole firmware could be much easier .. of course if you get somewhere
ATTEN firmware (CML or higher bw CAL models)

About firmwares I can't find them in web, maybe my fault...
« Last Edit: July 02, 2011, 05:16:15 AM by bxs »

Offline bxs

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Re: ATTEN ADS 1102CAL photos
« Reply #11 on: July 02, 2011, 05:13:00 AM »
Thanks for taking the tear downs,  it'll take a while to study the pics.  I noticed the name Siglent on the PCB, a brand Atten tried to push but it seemed to go nowhere; Atten doesn't bother erase the chip markings, making it easier to identify.

One of the things I wanted to know, were the references of ADCs, but no luck, they removed it  >:(

Probably they are using slow rated ADCs...

Offline Richard W.

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Re: ATTEN ADS 1102CAL photos
« Reply #12 on: July 02, 2011, 05:26:12 AM »
Nice pictures, but build quality doesn't impress me really.

What means the symbol on picture 14.jpg between the CE and the crossed recycle bin?

Offline Bored@Work

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Re: ATTEN ADS 1102CAL photos
« Reply #13 on: July 02, 2011, 05:47:56 AM »
What means the symbol on picture 14.jpg between the CE and the crossed recycle bin?

Chinese EFUP label. In this case 30 years of "Environment Friendly Use Period" before hazardous substances are likely to leak out of the equipment.
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Offline Mechatrommer

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Re: ATTEN ADS 1102CAL photos
« Reply #14 on: July 02, 2011, 06:00:51 AM »
nice scope. that dodgy fuse can take something at least 10~20A by the look.


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