Multi-carrier TX Ref DesignA/D and D/A CONVERSION/SAMPLING CIRCUITS BASESTATIONS / WIRELESS INFRASTRUCTURE HIGH-SPEED SIGNAL PROCESSING WIRELESS, RF, AND CABLE Jun 01, 2005 App Note 3559: High-Performance RF Modulator Enables Multi-Carrier Communications Transmitters Cellular transmitters rely on high-performance RF modulators to maintain linearity and dynamic range. With the growth of multi-carrier transmitters, RF modulators must maintain a low noise floor while delivering good high-level performance, usually determined by second- and third-order intercept points. The following article discusses these requirements and explains how the MAX2022 meets the requirements for a typical four-carrier WCDMA transmitter architecture. Overview Today nearly all cellular base stations employ super heterodyne architectures to……