US 2008/0279262 A1 · ON CHIP TRANSMIT/RECEIVE SELECTION

Abstract

An integrated circuit radio transceiver and method therefor includes transmit-receive selection circuitry that in a transmit mode, enables a circuit path between an output stage amplifier and an output node or antenna and disables a circuit path between an input amplifier and the output node or antenna. Alternatively, in a receive mode, the circuitry disables the transmit circuit path and enables the second circuit path. The transmit circuit path including transmit front end circuitry, the receive circuit path including receive front end circuitry and all circuitry for enabling and disabling are all on the same integrated circuit as the first and second circuit paths. The specific topologies avoid exceeding breakdown voltages of on-chip transistors used for transmit-receive circuitry operation.

Claims24

Dependent claims

An integrated circuit radio transceiver, comprising:

a baseband processor for processing ingoing and outgoing digital communication signals;
an antenna for radiating outgoing RF signals and for receiving ingoing RF signals;
a transmitter front end for generating the outgoing RF signals based upon the outgoing digital communication signals;
a power amplifier operably disposed to receive the outgoing RF signals from the transmitter front end to produce amplified outgoing RF signals;
a receiver front end for generating the ingoing digital communication signals based upon ingoing RF signals;
a low noise amplifier operable to couple the ingoing RF signals to the receiver front end;
and
an onboard transmit-receive selection module disposed to operably couple the outgoing RF signals to the antenna and to operably couple the ingoing RF signals received by the antenna to the low noise amplifier.

5 more elements

Dependencies are inferred from the claim text.

On chip transmit/receive selection

Life of this patent

On chip transmit/receive selection

Life of this patent

Abstract

Claims24