2.7 GHz DDS-Based AgileRF

PRODUCT OVERVIEW The AD9956 is Analog Devices’ newest AgileRF synthesizer. The device is comprised of DDS and PLL circuitry. The DDS features a 14-bit DAC operating at up to 400 MSPS and a 48-bit frequency tuning word (FTW). The PLL circuitry includes a phase frequency detector with scaleable 200

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2.7 GHz DDS-Based AgileRFTM Synthesizer

FEATURES 400 MSPS internal DDS clock speed 48-bit frequency tuning word 14-bit programmable phase offset Integrated 14-bit DAC Excellent dynamic performance Phase noise ≤ 135 dBc/Hz @ 1 KHz offset ?80 dB SFDR @ 160 MHz (±100 KHz offset IOUT) 25 Mb/s write-speed serial I/O control 200 MHz

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Evaluation Board for 2.7 GHz DDS-Based AgileRF??Synthesizer

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基于DDS的2.7 GHz AgileRF?頻率合成器

AD9956是ADI公司的首款A(yù)gileRF頻率合成器，由一個(gè)DDS和PLL電路組成。DDS具有一個(gè)工作速度最高達(dá)400 MSPS的14位DAC和一個(gè)48位頻率調(diào)諧字。PLL電路含有一個(gè)相位檢波器，該檢波器具有可調(diào)整的200 MHz輸入（預(yù)標(biāo)定器輸入的工作頻率最高達(dá)650 MHz），并且可以對電荷泵電流進(jìn)行數(shù)字控制。該器件還內(nèi)置一個(gè)具有可編程壓擺率的650 MHz PECL驅(qū)動(dòng)器。AD9956采用先進(jìn)的DDS技術(shù)，內(nèi)置高速、高性能數(shù)模轉(zhuǎn)換器和先進(jìn)的相位檢波器/電荷泵組合，可以合成最高達(dá)2.7 GHz的數(shù)字可編程、頻率捷變模擬輸出正弦波。該器件專為提供快速跳頻和精密調(diào)諧分辨率（48位頻率調(diào)諧字） ? 400 MSPS內(nèi)部DDS時(shí)鐘速度\n\n? 48位頻率調(diào)諧字\n\n? 14位可編程相位偏移\n\n? 集成14位DAC\n? 出色的動(dòng)態(tài)性能\n\n? 相位噪聲≤ 135 dBc/Hz（1 KHz失調(diào)）\n\n? ?80 dB SFDR（160 MHz，±100 KHz偏移IOUT）\n\n\n\n\n? 25 Mb/s寫入速度串行I/O控制\n\n? 655 MHz可編程輸入分頻器用于\n? 鑒頻鑒相器（÷M、÷N）{M、N = 1..16}（可旁路）\n\n\n\n\n? 可編程RF分頻器(÷R) {R = 1、2、4、8}（可旁路）;

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2.7 GHz DDS-Based AgileRF

PRODUCT OVERVIEW The AD9956 is Analog Devices’ newest AgileRF synthesizer. The device is comprised of DDS and PLL circuitry. The DDS features a 14-bit DAC operating at up to 400 MSPS and a 48-bit frequency tuning word (FTW). The PLL circuitry includes a phase frequency detector with scaleable 200

文件：805.15 Kbytes 頁數(shù)：32 Pages

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2.7 GHz DDS-Based AgileRFTM Synthesizer

FEATURES 400 MSPS internal DDS clock speed 48-bit frequency tuning word 14-bit programmable phase offset Integrated 14-bit DAC Excellent dynamic performance Phase noise ≤ 135 dBc/Hz @ 1 KHz offset ?80 dB SFDR @ 160 MHz (±100 KHz offset IOUT) 25 Mb/s write-speed serial I/O control 200 MHz

文件：535.27 Kbytes 頁數(shù)：32 Pages

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2.7 GHz DDS-Based AgileRFTM Synthesizer

FEATURES 400 MSPS internal DDS clock speed 48-bit frequency tuning word 14-bit programmable phase offset Integrated 14-bit DAC Excellent dynamic performance Phase noise ≤ 135 dBc/Hz @ 1 KHz offset ?80 dB SFDR @ 160 MHz (±100 KHz offset IOUT) 25 Mb/s write-speed serial I/O control 200 MHz

文件：535.27 Kbytes 頁數(shù)：32 Pages

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2.7 GHz DDS-Based AgileRF

PRODUCT OVERVIEW The AD9956 is Analog Devices’ newest AgileRF synthesizer. The device is comprised of DDS and PLL circuitry. The DDS features a 14-bit DAC operating at up to 400 MSPS and a 48-bit frequency tuning word (FTW). The PLL circuitry includes a phase frequency detector with scaleable 200

文件：805.15 Kbytes 頁數(shù)：32 Pages

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2.7 GHz DDS-Based AgileRFTM Synthesizer

FEATURES 400 MSPS internal DDS clock speed 48-bit frequency tuning word 14-bit programmable phase offset Integrated 14-bit DAC Excellent dynamic performance Phase noise ≤ 135 dBc/Hz @ 1 KHz offset ?80 dB SFDR @ 160 MHz (±100 KHz offset IOUT) 25 Mb/s write-speed serial I/O control 200 MHz

文件：535.27 Kbytes 頁數(shù)：32 Pages

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2.7 GHz DDS-Based AgileRFTM Synthesizer

FEATURES 400 MSPS internal DDS clock speed 48-bit frequency tuning word 14-bit programmable phase offset Integrated 14-bit DAC Excellent dynamic performance Phase noise ≤ 135 dBc/Hz @ 1 KHz offset ?80 dB SFDR @ 160 MHz (±100 KHz offset IOUT) 25 Mb/s write-speed serial I/O control 200 MHz

文件：535.27 Kbytes 頁數(shù)：32 Pages

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