I’ve got a lot of project ideas rattling around my head. Got even more of them in my notebook. One of the projects floating around in there for years that seemed pretty cool, but not urgent, was an automated thermal chamber for oscillator stability testing, roughly based on the one seen at the end of chapter… Read More Si5351A Investigations Part 4
Since the previous Si5351 Investigations post, I’ve made quite a bit of progress integrating the Si5351 into a grabber receiver. First, let’s look at the grabber receiver architecture and how the Si5351 is used in it. Above you can see the basic block diagram of the receiver. The front end has two switchable plug-in bandpass… Read More Si5351A Investigations Part 3
It has been another productive weekend with the Si5351 here in the shack. Since the last report, I’ve made significant progress in confirming that the Si5351 may be a good candidate for use as a LO in a radio. After getting the most basic communications with the Si5351 going via the Bus Pirate, my next task was… Read More Si5351A Investigations Part 2
Sometime not too long ago, I was tipped off (sorry, I don’t remember by whom) to a potential rival to the popular Si570 called the Si5351. This PLL-based clock generator IC has a few points in its favor over the Si570: it is significantly less expensive (even with the required external crystal or clock) and… Read More Si5351A Investigations Part 1