Self-testing transceiver architecture and related method

摘要

A self-testing transceiver comprises a receiver, and a transmitter including a power amplifier (PA) and a plurality of transmitter pre-PA stages. The plurality of transmitter pre-PA stages are configured to generate a communication signal at a receive frequency of the transceiver and the receiver is configured to process another communication signal at a transmit frequency of the transceiver, thereby enabling transceiver self-testing. A method for use by a transceiver for self-testing comprises generating a first communication signal at a transmit frequency of the transceiver by a transmitter of the transceiver, processing the first communication signal by a receiver of the transceiver, generating a second communication signal at a receive frequency of the transceiver by the transmitter, and processing the second communication signal by the receiver. The described generating and processing of the first and second communication signals resulting in self-testing by the transceiver.

主权项

1. A self-testing transceiver comprising:
a receiver including a front-end and a back-end, said front-end including a first amplifier providing digital gain control and outputting an amplified receive signal, a mixer for generating a down-converted signal from said amplified receive signal, and a second amplifier providing gain control for amplifying said down-converted signal to produce a front-end output signal, said back-end including one low-order low-pass filter (LPF), wherein said front-end gain is greater than said back-end gain; a transmitter including a power amplifier (PA) and a plurality of transmitter pre-PA stages; said plurality of transmitter pre-PA stages configured to generate a communication signal at a receive frequency of said transceiver and said receiver configured to process another communication signal at a transmit frequency of said transceiver, thereby enabling transceiver self-testing.