The GC4014 quad receive chip contains four identical down-conversion circuits. Each down-convert circuit accepts a real sample rate up to 62.5 MHz, down converts a selected Carrier frequency to zero, decimates the signal rate by a programmable factor ranging from 16 to 32768 (32 to 65,536 for complex outputs), and optionally sums it with other down converted samples. The chip outputs the four down-converted signals, or their sum. The chip contains a user programmable output Filter which CAN be used to arbitrarily shape the received datas spectrum. This Filter CAN be used as a Nyquist receive Filter for digital data transmission. Two Down-Converter paths CAN be merged to be used as a single complex input down-conversion circuit. The Down-Converters are designed to maintain over 95 dB of spur free dynamic range and over 100 dB of out of band rejection. Each down-convert circuit accepts 16 bit inputs and produces 16 bit outputs (bit serial). The frequencies and phase offsets of the four sine/cosine sequence generators CAN be independently specified, as CAN the gain of each circuit. The Down Converters share the same bandwidth, Filter coefficients and input formats. A special mode allows the downconverters to support GSM and DAMPS blocker requirements (see Sections 7.5 and 7.6). By Texas Instruments
Part Manufacturer Description Datasheet Samples
GC4014-PQ Texas Instruments Quad Digital Downconverter 100-LQFP
GC4014 's PackagesGC4014 's pdf datasheet

GC4014 Pinout, Pinouts
GC4014 pinout,Pin out
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