A multi-band integrated circuit radio transceiver comprising receive and
transmit radio front end circuit blocks further includes a local
oscillation generator for generating a local oscillation for use by the
receive and transmit radio front end circuit blocks to down convert
received RF signals to baseband or low intermediate frequency signals and
for use by the transmit front end circuit blocks to up-convert outgoing
communication signals to RF, respectively. The transceiver further
includes at least one buffering element coupled disposed in the local
oscillation path that produces a buffered oscillation based upon the
local oscillation to at least one front end circuit block wherein the
buffering element includes a differentially arranged amplifier stage
having a load and a cross-coupled capacitive element coupled between
input and output nodes of the amplifier stage and at least one of an
inductive device or a selectable capacitive device.