The Digital Down Converter (DDC) is a single chip synthesizer, quadrature mixer and lowpass filter. Its input data is a sampled data stream of up to 16 bits in width and up to a 75 MSPS data rate. The DDC performs down conversion, narrowband low pass filtering and decimation to produce a baseband signal.

Features

• 75 MSPS Input Data Rate

• 16-Bit Data Input; Offset Binary or 2’s Complement Format

• Spurious Free Dynamic Range Through Modulator >102dB

• Frequency Selectivity: <0.006Hz

• Identical Lowpass Filters for I and Q

• Passband Ripple: <0.04dB

• Stopband Attenuation: >104dB

• Filter -3dB to -102dB Shape Factor: <1.5

• Decimation Factors from 32 to 131,072

• IEEE 1149.1 Test Access Port

• HSP50016-EV Evaluation Board Available

Applications

• Cellular Base Stations

• Smart Antennas

• Channelized Receivers

• Spectrum Analysis

• Related Products: HI5703, HI5746, HI5766 A/Ds