With Xmas coming up I'm thinking of a DSO for both audio electronics and digital at a hobbyist level. I'm not sure if work or my insurance would be happy with me borrowing work's lovely Keysight.
So in terms of requirements
* Audio
* Power - ie AC/DC B+/- voltage levels with an appropriate probe if needed
* Digital such as I2S etc up to 5-6Mbit.
* Small that it can be put on a shelf without taking too much space
* External monitor support would help.
* Exporting raw data would be useful - USB drive would be fine, better a live stream.
* To a certain degree happy hacking it.
I suspect that most in this price bracket probably have the same rise time, sample rate etc.
Budget ~300GBP.
So the obvious ones are:
* Hantek DSO5-series - the review on the EEVBlog seems to show a Hantek locking up and very slow.
* Rigol DS1054Z 50Mhz (4ch, rise time 7ns) £309 with a bit of hackery gets 100MHz (300vpk CAT I)
Clock jitter: EEVblog #699 - Rigol DS1054Z Oscilloscope Jitter Fix Testing - YouTube
* Rigol DS1102Z-E 100Mhz (2ch, 1 GSa/s, 24 Mpts, 8 Bit, 1.75ns rise time) for £250
* Siglent SDS1202X-E 200Mhz (2ch, 1.8ns rise time) for £300v (400Vpk CAT II)
EEVBlog YouTube: EEVblog #985 - Siglent SDS1202X-E Oscilloscope Teardown - YouTube
This thread doesn't look too promising: Thread describing compensation issue
So in terms of requirements
* Audio
* Power - ie AC/DC B+/- voltage levels with an appropriate probe if needed
* Digital such as I2S etc up to 5-6Mbit.
* Small that it can be put on a shelf without taking too much space
* External monitor support would help.
* Exporting raw data would be useful - USB drive would be fine, better a live stream.
* To a certain degree happy hacking it.
I suspect that most in this price bracket probably have the same rise time, sample rate etc.
Budget ~300GBP.
So the obvious ones are:
* Hantek DSO5-series - the review on the EEVBlog seems to show a Hantek locking up and very slow.
* Rigol DS1054Z 50Mhz (4ch, rise time 7ns) £309 with a bit of hackery gets 100MHz (300vpk CAT I)
Clock jitter: EEVblog #699 - Rigol DS1054Z Oscilloscope Jitter Fix Testing - YouTube
* Rigol DS1102Z-E 100Mhz (2ch, 1 GSa/s, 24 Mpts, 8 Bit, 1.75ns rise time) for £250
* Siglent SDS1202X-E 200Mhz (2ch, 1.8ns rise time) for £300v (400Vpk CAT II)
EEVBlog YouTube: EEVblog #985 - Siglent SDS1202X-E Oscilloscope Teardown - YouTube
This thread doesn't look too promising: Thread describing compensation issue
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I have an SDS1104X-E hacked to 200 MHz and it really is 200 MHz. I have not seen an issue with bandwidth changing with level. If you get it from a local distributor and find an issue you can return it.
I2S decode needs three signals and is not commonly available in any of these scopes. You can add the mixed signal options but those are a little pricey. I suppose you could make an external I2S decoder and switch its output at specific bit patterns.
I2S decode needs three signals and is not commonly available in any of these scopes. You can add the mixed signal options but those are a little pricey. I suppose you could make an external I2S decoder and switch its output at specific bit patterns.
Thank you, as always you start with a shopping list and by the end of it the shopping list is shortened - I think an external I2S decoder would be easier at a later date. More important is a good solid 2 channels.
The Siglent is looking like the favourite at the moment.
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