I've observed no change of behavior when setting LPF disabled in register 2. Specifically I have looked for aliasing.
On Tue, Sep 19, 2017 at 06:18:27PM -0700, Frank Liu wrote: > > Wow, that is a bit of a bummer. Just to make sure we're on the same page, > I'm referring to page 20 of the MAX2837 datasheet: > https://datasheets.maximintegrated.com/en/ds/MAX2837.pdf. Is it just > straight up wrong? > > On Tue, Sep 19, 2017 at 5:56 PM, Michael Ossmann <m...@ossmann.com> wrote: > > > Frank, > > > > I've tried without success to disable the baseband filter. If it works for > > you, please let me know how you did it. > > > > Thanks, > > > > Michael > > > > > > On Tue, Sep 19, 2017 at 05:53:56PM -0700, Frank Liu wrote: > > > > > > Thanks for the quick reply! For the MAX2837, we were actually thinking of > > > just disabling the baseband filter via the LPF register. We'll be > > operating > > > in transmit mode for most of the time anyway, and we can apply digital > > > filters to any received signals we need to clean up. > > > > > > --Frank > > > > > > On Tue, Sep 19, 2017 at 10:39 AM, Michael Ossmann <m...@ossmann.com> > > wrote: > > > > > > > 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! > > > > > > > > > _______________________________________________ > > > > > HackRF-dev mailing list > > > > > HackRF-dev@greatscottgadgets.com > > > > > https://pairlist9.pair.net/mailman/listinfo/hackrf-dev > > > > > > > > > > _______________________________________________ HackRF-dev mailing list HackRF-dev@greatscottgadgets.com https://pairlist9.pair.net/mailman/listinfo/hackrf-dev
