General Description
High-precision 16-bit complex digital down-converter / IQ demodulator with a fully configurable decimation filter stage. Ideal for the conversion of IF signals to baseband for subsequent processing. Features a precision digital oscillator (DDS) and an optimized decimation filter section.
Key Design Features
– 16-bit signed complex (IQ) data samples
– Precision digital oscillator (> 100 dB SFDR)
– Decimation factors from 0 to 2N
– Only 12 multipliers per decimate-by-2 stage
– 80 dB stop-band attenuation
– Typical FPGA / SoC sample rates of 300 MHz+
– Ideal for all digital transmission and digital modulation schemes
– Examples include: FSK, QPSK, QAM, WiMAX, WCDMA, COFDM etc.
Applications
– Digital IQ demodulators
– Conversion of IF signals to baseband
– Software defined radio
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