Patent ID: 6665339
Filing Date: 2003-12-16
Classification: H03F,H03J,H03L

Abstract:
A monolithic integrated circuit comprising:a substrate; a first set of one or more subcircuits on the substrate; a second set of one or more subcircuits on the substrate; and a bias current supply coupled to the first and second sets to provide bias current to the first and second sets, and including: a first bias circuit on the substrate coupled to and to supply bias current to a first subcircuit of the first set, the first bias circuit including a first current modulator having a first switch input to control the rate of change of supplied bias current in response to the first switch input, the first switch input to indicate that the bias current is to start or stop being supplied to the first subcircuit, wherein the integrated circuit is for operation as a radio transceiver including a receiver and a transmitter, wherein the transmitter includes the first set of subcircuits and the receiver includes the second set of subcircuits, and wherein the first set of subcircuits includes a power amplifier in the transmitter.