High sampling rate ADC simplifies the radio design of Ultra-Wideband cellular base stations

Source: Internet
Author: User

Today's wireless users have no end-to-end requirements for higher capacity, faster access speeds, and higher data throughput capabilities, leading to the increasing radio signal bandwidth of cell base stations. As far as the network is concerned, brutal competition and declining profits have forced base station manufacturers to gradually adopt trade methods similar to PCs. This method uses a single architecture that can be applied to multiple network technologies and provides a general platform for small modular design that supports WCDMA, WiMAX and future standards. In addition, the design is slightly adjusted to meet various requirements of different carriers. In this way, various R & D resources can be reused to speed up the product listing process with a relatively low investment.

These two trends make today's radio designers face the following challenges: providing 20 to 40 MHz signal bandwidth for the front-end to transmit multi-carrier signals. In the signal chain, ADC is usually used to digitize the signal, but in most cases the ADC will have a great impact on the performance of the broadband radio. TI's latest high-speed ADC series are the key to this type of radio design.


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