Author Topic: Siglent SDS1104X-E and SDS1204X-E Mixed Signal Oscilloscopes  (Read 218592 times)

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Offline rf-loop

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Re: Siglent SDS1104X-E and SDS1204X-E Mixed Signal Oscilloscopes
« Reply #1600 on: February 02, 2020, 06:09:24 am »
Let’s assume a single channel active at a 1ms/div timebase. With 14Mpts of acquisition memory, we still
maintain a 1GSa/s sample rate and the record length is 14Mpts, so it fills the entire memory. Yet when we
look at the history, we will find 3 records stored there, so there is actually a total  42Mpts of memory
available. Since this is the same for both channel groups in an SDS1104X-E, we could even claim to have
a total of 84Mpts of memory, but Siglent thankfully does not take the numbers game that far.

1.00ms - 1.00GSa/s -14.0Mpts     - 3   screens on history     ( 14Mpts    x 3 =  42Mpts)    per ADC
500us   - 1.00GSa/s -7.00Mpts    -  7   screens on history    ( 7.00Mpts x 7 =   49Mpts)    per ADC
200us   - 1.00GSa/s -2.80Mpts    - 19  screens on history    ( 2.80Mpts x 19 = 53.2Mpts) per ADC
50us    -  1.00GSa/s -700Kpts     -  80 screens on history     ( 700Kpts x 80 =  56Mpts  )  per ADC   BINGOOOO 56Mpts per ADC 
Siglent SDS1104X-E have 2 ADC X 56Mpts = 112Mpts

Where is the truth. Why is Silent silent about this?
sds1104x-e is a 56M oscilloscope per ADC
Yes and no. ;)
Even when there is more memory for history buffer and fast segmented (sequence)
IMportant factor is one acquisition maximum memory length and it is 14M with one exception what is 17.5M and this number can not use for marketing. It can tell sequence and wfm history buffer is up to this and that but due to common peractice... max freq, max samplerate and max one acquisition memory length.
And truth is 100 and 200MHz BW depending model, 1GSa/s and 14Mpts in interleaved mode and 500MSa/s and 7M in non interleaved mode. (acquisition length is same in both cases if we thing time instead of count of samples. If think this, 14M with 1GSa/s equals to 140Mpts with 10GSa/s. This need also think and not look only Mpts without thinking further realities with time axis)

Here can find SDS1x04X-E old table about this. Note, not all combinations and also note older FW version and there perhaps is some minor marginal differences. Even when it is checked with older FW and it is bit obsolete (mainly in slow timebases) I do not yet set table status fully obsolete. Waiting some FW update more and after then correct whole table. Note that some numbers may be bit better in FW 6.1.33 where is also many major improvements.

Siglent do not "stretch all out" for marketing... given that place of honors to example Keysight et al.
« Last Edit: February 02, 2020, 07:03:25 am by rf-loop »
If practice and theory is not equal it tells that used application of theory is wrong or the theory itself is wrong.
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Offline ArcticPhoenix0

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Re: Siglent SDS1104X-E and SDS1204X-E Mixed Signal Oscilloscopes
« Reply #1601 on: February 06, 2020, 02:58:34 am »
Is there a way to save this image so that I can pull it up later on the screen without the signal going into it?

Offline TK

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Re: Siglent SDS1104X-E and SDS1204X-E Mixed Signal Oscilloscopes
« Reply #1602 on: February 06, 2020, 11:48:35 am »
You can save them as reference signals

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