Digital transceiver with switched capacitor sampling mixers and switched capacitor amplifiers

摘要

Examples of a digital transceiver, a switched-capacitor sampling mixer, and an N-stage switched-capacitor amplifier are generally described herein. The digital transceiver may include a plurality of switched-capacitor sampling mixers and a plurality of N-stage switched-capacitor amplifiers. Each mixer samples a received differential RF signal. The pair of N-stage switched-capacitor amplifiers operates as charge redistribution amplifiers. Each N-stage switched-capacitor amplifier provides a near-constant capacitive load for one of the mixers.

主权项

1. A digital transceiver comprising:
a plurality of switched-capacitor sampling mixers, each of the switched-capacitor sampling mixers configured to sample a differential radio-frequency (RF) signal and provide a switched output signal; and a plurality of N-stage switched-capacitor amplifiers configured as charge redistribution amplifiers where N is a non-zero positive integer equal to eight or less, each of the N-stage switched-capacitor amplifiers configured to provide a constant capacitive load for one of the switched-capacitor sampling mixers, the constant capacitive load configured to integrate the switched output signal.