pll-design,programme
one note - that chip analysis starts on page 735. i gave you the oscillator analysis too because it's weird if you haven't built vco's before.. also, the 560 schematic on p736/737 overlaps a little by the "input" to the pd. i did this so you're sure you are not missing anything because of my bad scan.. haha
hey cretu, once you have hacked the 560, start bringing the 564 blocks in from the philips datasheets. philips app notes give a 564 analysis in **broken link removed**
the EC table in the 564 datasheet says 45-60mA, so we can count thru the branches to find rough estimates of the bias levels compared to our old friend the 560...
go ahead and pspice these using 3904 and 3906, and you will only have to change resistors to match the bias levels to the 56x.
next, feel free to build the blocks with 3904 & 3906 on breadboards. use the new resistor values found from spice, but don't expect it to be as "perfect" as spice! (matching is bad in discretes..)
you can hand-match the diff pair transistors to get a pretty good circuit (seems great at 12v, bad at 5.0v).. but that's OK, it works.
from here, transition into an ic design is easy - matching will be so good, integrated circuit will seem almost perfect when you finally get it.
johns & martin book is at work, so i will scan their info next week. anything else?