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HSP50214BVCZ Datasheet(PDF) 1 Page - Renesas Technology Corp |
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HSP50214BVCZ Datasheet(HTML) 1 Page - Renesas Technology Corp |
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1 / 62 page  FN4450 Rev 4.00 Page 1 of 62 May 1, 2007 FN4450 Rev 4.00 May 1, 2007 HSP50214B Programmable Downconverter DATASHEET The HSP50214B 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 is down converted to baseband by digital mixers and a quadrature NCO, as shown in the Block Diagram. A decimating (4 to 32) fifth order Cascaded Integrator-Comb (CIC) filter can be applied to the data before it is processed by up to 5 decimate-by-2 halfband filters. The halfband filters are followed by a 255-tap programmable FIR filter. The output data from the programmable FIR filter is scaled by a digital AGC before being re-sampled in a polyphase FIR filter. The output section can provide seven types of data: Cartesian (I, Q), polar (R, ), filtered frequency (ddt), Timing Error (TE), and AGC level in either parallel or serial format. Features • Up to 65MSPS Front-End Processing Rates (CLKIN) and 55MHz 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 12.94MSPS 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 Output Signal Resolution; Fixed or Auto Gain Adjust • Serial, Parallel, and FIFO 16-Bit Output Modes • Cartesian to Polar Converter and Frequency Discriminator for AFC Loops and Demodulation of AM, FM, FSK, and DPSK • Input Level Detector for External I.F. AGC Support • Pb-Free Plus Anneal Available (RoHS Compliant) Applications • Single Channel Digital Software Radio Receivers • Base Station Rx’s: AMPS, NA TDMA, GSM, and CDMA • Compatible with HSP50210 Digital Costas Loop for PSK Reception • Evaluation Platform Available Ordering Information PART NUMBER PART MARKING TEMP. RANGE (°C) PACKAGE PKG. DWG. NO. HSP50214BVC HSP50214BVC 0 to +70 120 Ld MQFP Q120.28x28 HSP50214BVCZ (Note) HSP50214BVCZ 0 to +70 120 Ld MQFP (Pb-free) Q120.28x28 HSP50214BVI HSP50214BVI -40 to +85 120 Ld MQFP Q120.28x28 HSP50214BVIZ (Note) HSP50214BVIZ -40 to +85 120 Ld MQFP (Pb-free) Q120.28x28 NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. |
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