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The Rigol DS1052E

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tinhead:

--- Quote from: EECrAZY on November 07, 2010, 01:03:31 am ---Actually, I dont believe AD9288 data align provides 180 degree phase shift. Its only for the output, data is still sampled independently on the rising edge of each clock. But output from channel B is 1/2 period delayed.


--- End quote ---

well the clock need to be shifted by 180 degree for data align.
I did checked my Tekway, and it is not using this mode. Actually it is set to S1=1 and S2=0,
so sampled data and clock are both shifted by 180 degree.
As this is standard mode with two clocks Rigol will have probably same settings.

Mechatrommer:
keep up the good work! i'm looking forward to see any new hack/improvement or detailed performance report coming in. ;)

EECrAZY:

--- Quote from: tinman on November 07, 2010, 01:34:41 am ---I did checked my Tekway, and it is not using this mode. Actually it is set to S1=1 and S2=0,
so sampled data and clock are both shifted by 180 degree.
As this is standard mode with two clocks Rigol will have probably same settings.

--- End quote ---

No, just checked my Rigol and both S0 and S1 pins are tied to Vdd. It does use phase align, though it makes no difference  hence you still need 10 clocks shifted by 1ns

flolic:

--- Quote from: tinhead on December 05, 2010, 08:30:20 pm ---
Maybe someone can unsolder the varicap and test with 2 x 2.2pF (1.1pF total) in series, i can't because i'm Tekway/Hantek "junkie" (flolic maybe you?)

--- End quote ---

You mean to solder 1.1pF instead of varicap? Yes, I can try that. But I removed that 160pF caps long time ago...  ;D

saturation:
There's an interesting review of the 1052E from a Chinese electronics blog by Dengbao Ming, who has excellent electronics info on his blog from a China perspective [ in Chinese], and Rigol in general.

Here he suggests the 1052E achieves price/performance by overclocking its ADC:

http://translate.googleusercontent.com/translate_c?hl=en&sl=zh-CN&u=http://tm.eefocus.com/stupid/blog/09-08/174557_df398.html&prev=/search%3Fq%3D3458a%2Breview%2Beefocus%26hl%3Den%26safe%3Doff%26client%3Dfirefox-a%26hs%3DPGy%26rls%3Dorg.mozilla:en-US:official%26prmd%3Div&rurl=translate.google.com&twu=1&usg=ALkJrhiSnedF1biRtFDQGEQxdg7c2i3VgQ


He suggests, in reading through his his commentary, Rigol copies Agilent products, while Tekway copies Tektronixs.

In this editorial, he discusses a Japanese article comparing 100MHz scopes, and the Rigol does quite well:

http://translate.googleusercontent.com/translate_c?hl=en&sl=zh-CN&u=http://tm.eefocus.com/stupid/blog/09-12/182020_8ab4d.html&prev=/search%3Fq%3D3458a%2Breview%2Beefocus%26hl%3Den%26safe%3Doff%26client%3Dfirefox-a%26hs%3DPGy%26rls%3Dorg.mozilla:en-US:official%26prmd%3Div&rurl=translate.google.com&twu=1&usg=ALkJrhhFUMkVbRLCNl6yKQ_PtP6JsCv26Q

He also link eevblog articles on the Rigol from 2009.

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