Wideband and narrowband receiver

摘要

Systems and methods provide a receiver design capable of both wideband (high symbol rate) and narrowband (low symbol rate) operations requirements without compromising narrowband performance. Moreover, such a receiver design can be very low cost, and eschewing the need for any expensive and/or specialized elements. A receiver configured in accordance with various embodiments utilizes a fully integrated tuner in which narrowband filters are configured to be bypassable when in wideband (high symbol rate) mode in favor of fixed wideband filters. Additionally, an analog-to-digital converter (ADC) can be implemented with digital gain for wideband operation, as well as digital data bit mapping to accommodate industry standard application-specific integrated circuits (ASICs) interfaces, such as from a 12 bit ADC core to an 8 bit digital interface.

主权项

1. An apparatus, comprising:
a tuner comprising first and second narrowband filters for operating on a narrowband carrier signal, wherein the first and second narrowband filters are bypassable narrowband filters; first and second wideband filters, separate from the first and second narrowband filters and connected in series with a respective one of the first and second narrowband filters, the first and second wideband filters for operating on a wideband carrier signal when the first and second narrowband filters are bypassed, wherein each of the first and second narrowband filters is bypassed when a signal passes through but is not filtered by the narrowband filter; and an analog to digital converter (ADC) including first and second digital gain modules for adding digital gain to the wideband carrier signal.