A Versatile Mixed Signal Front-End Processor with Dual Receive and Dual Transmit Channels Dual 10-/12-Bit, 64 MSPS Sampling A/D Converter with Independent Reference, Input Buffers, Programmable Gain Amplifiers (PGA), Decimation Filters and a Digital Hilbert Block Dual 12-/14-bit, 128 MSPS D/A Converter with Digital Hilbert and Interpolation Filters, Digital I/Q or Real-Signal Up-Converters, By passable Digital Up-Converters Internal Clock Distribution Block including a Phase-Locked Loop and Timing Generation circuitry Programmable Output Clocks, SPI Port, Programmable Sigma Delta Outputs, Auxiliary DAC outputs, Auxiliary ADC inputs