More about the chips used in the RSP family & questions about ADC resolution

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jon
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Joined: Tue Jan 06, 2015 10:48 am

More about the chips used in the RSP family & questions about ADC resolution

Post by jon » Thu Nov 16, 2017 11:59 am

A number of people have asked whether the RSP1A uses the same chipset as that used in the RSP1 and if so, how can it deliver 14 bit resolution and better performance? The answer is yes, they do use the same chipset, but the front end design of the RSP1A is completely different and a lot more advanced than the RSP1. The reason that the RSP1A delivers 14 bits of resolution for sample rates below 6.048 MHz is because we have been able to exploit a hardware mode in the MSi2500 that we were unaware of until we commenced the development of the RSP1A. A more detailed explanation can be found in Carl Laufer’s review of the RSP1A at:

https://www.rtl-sdr.com/a-review-of-the-sdrplay-rsp1a/

ADC resolution is just one factor that determines the performance of any SDR, but there are other factors as well. Before deciding whether the RSP1A is the right solution for anyone’s needs, we always recommend that they read any available comparative performance reviews and weigh up whether the features and described performance meets their personal needs at a price point that they feel is acceptable

As well as the review posted on the RTL-SDR blog, there are also other reviews now becoming available:

SWLing blog: https://swling.com/blog/2017/11/a-revie ... ned-radio/
Paul Jones’s user review: http://www.nn4f.com/index.php/48-the-ne ... rplay.html
Ham Radio Science Review: http://www.hamradioscience.com/sdrplay- ... irst-look/

As more reviews become available we will post the links here and on our community forum

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