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參數(shù)資料
型號： AD9858FDPCB
廠商： Analog Devices, Inc.
元件分類： XO, clock
英文描述： 1 GSPS Direct Digital Synthesizer
中文描述： 1 GSPS的直接數(shù)字頻率合成器
文件頁數(shù)： 30/32頁
文件大小： 1412K
代理商： AD9858FDPCB
AD9858
EVALUATION BOARDS
The AD9858 has three different evaluation board designs. The
first design is the traditional DDS evaluation board. In this
design, the DDS is clocked and the output is taken directly from
the DAC. The analog mixer and PLL blocks are made available
for separate evaluation.
Rev. A | Page 30 of 32
The second design is a fractional-divide loop. This evaluation
board was designed to incorporate the DDS, the phase-detector,
and the charge pump. In this application, the DDS is used in a
PLL loop. Unlike a fixed divider used in traditional PLL loops,
the output signal is divided and fed back to the phase detector
by the DDS. To do this, the output signal of the PLL loop is fed
to the DDS as REFCLK. The DDS is programmed to match the
reference input frequency. Because the DDS output frequency
can take on 2
32
potential values between 0 Hz and one half of
the PLL loop output frequency, this enables frequency
resolution on the order of 470 MHz, assuming a PLL loop
output frequency of 2 GHz.
The third design is a translation loop or offset loop. In this
design, the RF mixer is incorporated into the feedback path of
the loop. This allows direct up-conversion to the transmission
frequency.
and instructions. See
for more
相關PDF資料
PDF描述
AD9859 400 MSPS, 10-Bit, 1.8 V CMOS Direct Digital Synthesizer
AD9859YSV 400 MSPS, 10-Bit, 1.8 V CMOS Direct Digital Synthesizer
AD9859YSV-REEL7 400 MSPS, 10-Bit, 1.8 V CMOS Direct Digital Synthesizer
AD9862PCB Mixed-Signal Front-End (MxFE⑩) Processor for Broadband Communications
AD9860 Mixed-Signal Front-End (MxFE⑩) Processor for Broadband Communications
相關代理商/技術參數(shù)
參數(shù)描述
AD9858PCB 制造商:AD 制造商全稱:Analog Devices 功能描述:1 GSPS Direct Digital Synthesizer
AD9858TLPCB 制造商:AD 制造商全稱:Analog Devices 功能描述:1 GSPS Direct Digital Synthesizer
AD9858XSV 制造商:Analog Devices 功能描述:
AD9859 制造商:AD 制造商全稱:Analog Devices 功能描述:400 MSPS, 10-Bit, 1.8 V CMOS Direct Digital Synthesizer
AD9859/PCB 制造商:Analog Devices 功能描述:NCO, 400MSPS 10 BIT, 1.8V CMOS DIRECT DGTL SYNTHESIZER - Bulk
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