The HSP50216 Quad Programmable Digital Downconverter (QPDC) is designed for high dynamic range applications such as cellular basestations where multiple channel processing is required in a small physical space. The QPDC combines into a single package, a set of four channels which include: digital mixers, a quadrature carrier NCO, digital filters, a resampling filter, a Cartesian-to-polar coordinate converter and an AGC loop.

特性 Features

? Up to 70MSPS Input

? Four Independently Programmable Downconverter Channels in a single package

? Four Parallel 16-Bit Inputs - Fixed or Floating Point Format

? 32-Bit Programmable Carrier NCO with >115dB SFDR

? 110dB FIR Out of Band Attenuation

? Decimation from 8 to >65536

? 24-bit Internal Data Path

? Digital AGC with up to 96dB of Gain Range

? Filter Functions

- 1 to 5 Stage CIC Filter

- Halfband Decimation and Interpolation FIR Filter

- Programmable FIR Filter

- Resampling FIR Filter

? Cascadable Filtering for Additional Bandwidth

? Four Independent Serial Outputs

? 3.3V Operation

? Pb-Free Available (RoHS Compliant)

Applications

? Narrow-Band TDMA through IS-95 CDMA Digital Software Radio and Basestation Receivers

? Wide-Band Applications: W-CDMA and UMTS Digital Software Radio and Basestation Receivers