Direct modulation in PLL without up conversion mixer

wireless man · Apr 28, 2008

What system is feasible in implementing direct modulation in PLL without up conversion mixer?
GMSK? QPSK? or others?
Thanks

RFCMOS · Apr 28, 2008

Hello,

You could use translational PLL for constant envelope modulation like GMSK and QPSK

khouly · Apr 28, 2008

yeah i agree with RFCMOS , PLL can only modulate the phase and frequency ,

but others like QAM and so on , no

Khouly

bingdao89 · Jan 10, 2009

i think the two below is right!

Privacy & Transparency