[Hackrf-dev] RF path: replacing MAX5864 with MAX5865

[Michael Ossmann]

Frank,

Yes, you can replace MAX5864 with MAX5865.  However, you may still run into
bandwidth limitations from the MAX2837 (31 MHz maximum baseband filter
bandwidth) and SGPIO (our implementation tops out at about 25 Msps).

Michael


On Mon, Sep 18, 2017 at 06:58:19PM -0700, Frank Liu wrote:
>
> Hey folks,
> 
> We're hoping to extend the existing HackRF design to support a wider
> bandwidth. Looking at datasheets, it seems that we can simply replace the
> MAX5864 (22Msps) with a MAX5865 (40Msps) with pretty much no change in
> hardware design.
> 
> Was wondering if anybody had tried this already. Our HackRF will be
> "standalone", meaning that we won't be constrained by USB2.0's I/O speed.
> 
> Thanks!

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