Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
Differential drive circuit and communication device
A differential drive circuit includes at least a first or second drive system. The first drive system has first and second field effect transistors, first and second resistors, and first and second circuits controlling the source voltages of the first and second field effect transistors to equal first and second drive target voltages, the first and second field effect transistors having sources connected to a power potential via the first and second resistors, respectively. The second drive system has third and fourth field effect transistors, third and fourth resistors, and third and fourth circuits controlling the source voltages of the third and fourth field effect transistors to equal third and fourth drive target voltages, the third and fourth field effect transistors having sources connected to a reference potential via the third and fourth resistors, respectively. A common-mode voltage is driven to form a constant differential signal across a load resistance.
Sony Corporation
H H H H H H H H H
H04L H03M H03F H03M H03M H03K H03K H04L H03F
inventional additional inventional inventional additional inventional inventional additional inventional
Miho Gen Hidekazu
Ozawa Ichimura Kikuchi