概要
説明
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, θ), filtered frequency (dθ/dt), Timing Error (TE), and AGC level in either parallel or serial format.
特長
- 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)
製品比較
アプリケーション
- 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
ドキュメント
ピックアップ
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| 分類 | タイトル | 日時 |
| データシート | PDF 4.40 MB | |
| EOL通知 | PDF 1.17 MB | |
| EOL通知 | PDF 292 KB | |
| その他資料 | PDF 204 KB | |
| アプリケーションノート | PDF 375 KB | |
| アプリケーションノート | PDF 942 KB | |
6件
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設計・開発
モデル
ECADモデル
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Processing table
| MQFP-HS | Tray | ||
| MQFP-HS | Tray | ||
| MQFP-HS | Tray | ||
| MQFP-HS | Tray |
Tips for Using This Parametric Table:
- Hide Filters button in header: Collapse or expands filters
- Column sort buttons in header: Sort Column alphabetically / numerically descending or ascending
- Reset button in header: Reset all filters to the page default
- Full Screen button in header: Expand the table to full screen view (user must close out of full screen before they can interact with rest of page)
- Export button in header: Export the filtered results of the table to an Excel document
- Filter parts search bar in header: Type to filter table results by part number
- Hide column button in column headers: Select to hide columns in table
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- Multiselect checkboxes at beginning of each row in table: Select these checkboxes to compare products against each other
- Document icon next to product name in row: View the featured document for this product
- Chip icon next to the right of the document icon in row: View the block diagram for this product
- Cart icon to the right of the chip icon: Indicates that samples are available for this product