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AD9953PCB Folha de dados(PDF) 1 Page - Analog Devices |
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AD9953PCB Folha de dados(HTML) 1 Page - Analog Devices |
1 / 42 page A 400 MSPS 14-Bit, 1.8V CMOS Direct Digital Synthesizer Preliminary Technical Data AD9953 REV. PrB 1/30/2003 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective companies. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 www.analog.com Fax: 781/326-8703 © 2002 Analog Devices, Inc. All rights reserved. FEATURES 400 MSPS Internal Clock Speed Integrated 14-bit D/A Converter Programmable phase/amplitude dithering 32-bit Tuning Word Phase Noise <= -125 dBc/Hz @ 1KHz offset (DAC output) Excellent Dynamic Performance 80dB SFDR @ 130MHz (+/- 100KHz Offset) Aout Serial I/O Control 1.8V Power Supply Software and Hardware controlled power down 48-lead EPAD-TQFP package Linear and non-linear frequency sweeping capability Integrated 1024x32 word RAM Support for 5v input levels on most digital inputs PLL REFCLK multiplier (4X to 20X) Internal oscillator, can be driven by a single crystal Phase modulation capability Multi-Chip Synchronization APPLICATIONS Agile L.O. Frequency Synthesis FM Chirp Source for Radar and Scanning Systems Automotive Radar Test and Measurement Equipment PSK/FSK/Ramped FSK modulation Functional Block Diagram DAC DAC I-set Aout Aout System Clock Timing & Control Logic I/O Update RefClk Sync Out IO Port Control Registers Reset M U X 4x-20x Clock Multipler System Clock RefClk Oscillator/Buffer SYNC 0 4 M U X Phase Accumulator COS(x) Phase Offset DDS Core 19 z-1 Σ Σ z-1 DDS Clock PS<1:0> OSK PwrDwn Static RAM 1024 x 32 32 10 3 32 RAM Data M U X 14 θ RAM Data <31:18> 32 32 32 14 32 Crystal Out ENABLE 14 |
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