HSP50214A - Intersil Corporation

HSP50214A Programmable Downconverter

The HSP50214A Programmable Downconverter converts digitized IF data into filtered baseband data which can be processed by a standard DSP microprocessor. The Programmable Downconverter (PDC) performs down conversion, decimation, narrowband low pass filtering, gain scaling, resampling, and Cartesian to Polar coordinate conversion. The 14-bit sampled IF input i.

Features

• Up to 65 MSPS Front-End Processing Rates (CLKIN) and 55 MSPS (41 MSPS Using the Discriminator) Back-End Processing Rates (PROCCLK) Clocks May Be Asynchronous
• Processing Capable of >100dB SFDR
• Up to 255-Tap Programmable FIR
• Overall Decimation Factor Ranging from 4 to 16384
• Output Samples Rates to ≅ 12.94 MSPS with Output Bandwidths to ≅ 982kHz Lowpass
• 32-Bit Programmable NCO for Channel Selection and Carrier Tracking
• Digital Resampling Filter for Symbol Tracking Loops and Incommensurate Sample-to-Output Clock Ratios
• Digital AGC with Programmable Limits and Slew Rate to Optimize .