Si5351C programmable clock generator breakout
Posted: Thu Dec 26, 2013 7:41 pm
The Si5351 is a beautiful family of chips, appropriate for generating all sorts of useful frequencies, particularly the -C variant, which can take an external reference clock.
Trouble is, the package is a bit awkward to work with. A minimal breakout, with some filter caps and maybe pads for input attenuation, would be a sweet way to get started developing something more serious.
Who wants this? SDR folks, for one! Everyone with a cheap RTLSDR has discovered the awful wander of the on-board clock. The '51C is really ideal for taking another stable reference (of whatever frequency is convenient) and synthesizing the 28.8MHz used by the SDR chip.
Trouble is, the package is a bit awkward to work with. A minimal breakout, with some filter caps and maybe pads for input attenuation, would be a sweet way to get started developing something more serious.
Who wants this? SDR folks, for one! Everyone with a cheap RTLSDR has discovered the awful wander of the on-board clock. The '51C is really ideal for taking another stable reference (of whatever frequency is convenient) and synthesizing the 28.8MHz used by the SDR chip.