首页资源分类IC设计及制造 > ADF4350中文资料

ADF4350中文资料

已有 460162个资源

下载专区


TI最新应用解决方案

工业电子 汽车电子 个人消费电子

上传者其他资源

文档信息举报收藏

标    签: VCO

分    享:

文档简介

是一款数控vco射频芯片

文档预览

੻‫ټ‬ೕ୲ࢇ‫ׯ‬ഗ,ण‫ׯ‬VCO ADF4350 ༬Ⴀ ๼‫؜‬ೕ୲‫ྷݔ‬ǖ137.5 MHz዁4400 MHz ၭຕN‫ݴ‬ೕೕ୲ࢇ‫ׯ‬ഗࢅኝຕN‫ݴ‬ೕೕ୲ࢇ‫ׯ‬ഗ ਏᆶ‫گ‬၎࿋ሯำ‫ڦ‬VCO ੗Պ‫ڦײ‬1/2/4/8/16‫ݴ‬ೕ๼‫؜‬ ਩‫(ߵݛ‬RMS)۶‫ۯ‬ǖ0.5 ps)‫ۆ‬႙਩‫ߵݛ‬ኵ* ‫ۉ‬ᇸ‫ۉ‬უǖ3.0 V዁3.6 V 1.8 Vஇडग़ඹ ੗Պ‫ײ‬ມఇᇨ‫ݴ‬ೕഗǖ4/5ई8/9 ੗Պ‫ڦײ‬๼‫୲ࠀ؜‬ RF๼‫ৢ؜‬ᅼࠀీ ෙ၍๕‫ز‬ႜথ੨ ఇెࢅຕጴ໮ۨॠ֪ ሞ੻‫੺ా੻ټ‬໏໮ۨఇ๕ ዜཌ३ณ SDVDD AVDD DVDD ᆌᆩ ࿮၍ए‫إ‬ยแ)W-CDMAĂTD-SCDMAĂWiMAXĂGSMĂ PCSĂDCSĂDECT* ֪๬ยԢ ࿮၍ਆᇘྪ(LAN)Ăᆶ၍‫ۉ‬๫ยԢ ้ዓׂิ ߁ຎ! ADF4350঳ࢇྔև࣍ୟ୳հഗࢅྔևएጚೕ୲๑ᆩ้Lj੗ ํ၄ၭຕN‫ݴ‬ೕईኝຕN‫ݴ‬ೕ໮၎࣍(PLL)ೕ୲ࢇ‫ׯ‬ഗă ADF4350ਏᆶᅃ߲ण‫ۉׯ‬უ੦዆ና‫ږ‬ഗ(VCO)Ljഄएհ๼ ‫؜‬ೕ୲‫ྺྷݔ‬2200 MHz዁4400 MHzăُྔLj૧ᆩ1/2/4/8/16 ‫ݴ‬ೕ‫ۉ‬ୟLjᆩࢽ੗ᅜׂิ‫گ‬዁137.5 MHz‫ڦ‬RF๼‫؜‬ೕ୲ă ‫ܔ‬ᇀᄲ൱߰૗‫ڦ‬ᆌᆩLjRF๼‫؜‬प੗ᅜํ၄ৢᅼăৢᅼࠀీ ़੗ᅜཚࡗᆅগ੦዆Ljᄺ੗ᅜཚࡗ෉ॲ੦዆ăཞ้༵ࠃ‫ޤ‬ ዺRF๼‫؜‬Lj൐փᆩ้੗ᅜ࠲܏ă ໯ᆶೌాस٪ഗ਩ཚࡗ०‫ڦڇ‬ෙ၍๕থ੨৊ႜ੦዆ă޿ഗ ॲ֑ᆩ3.0 V዁3.6 V‫ۉ‬ᇸࠃ‫ۉ‬Ljփᆩ้੗ᅜ࠲܏ă ࠀీ઀཮ VP RSET VVCO REFIN CLK DATA LE ×2 DOUBLER 10-BIT R COUNTER ÷2 DIVIDER DATA REGISTER FUNCTION LATCH LOCK DETECT MULTIPLEXER PFD CHARGE PUMP PHASE COMPARATOR FLO SWITCH INTEGER FRACTION MODULUS REG REG REG VCO差分输入 三阶小数插值器 THIRD-ORDER FRACTIONAL INTERPOLATOR N COUNTER VCO CORE ÷1/2/4/8/16 差分输出 差分输出 OUTPUT STAGE OUTPUT STAGE MUXOUT SW LD CPOUT 输出是直流 VTUNE VREF VCOM TEMP RFOUTA+ RFOUTA– PDBRF RFOUTB+ RF辅OUTB助– 输出比较 差一般测试 MULTIPLEXER 07325-001 MULTIPLEXER ADF4350 CE AGND DGND CPGND Rev. 0 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. Specifications subject to change without notice. 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 owners. ཮1 SDGND AGNDVCO One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2008 Analog Devices, Inc. All rights reserved. ADIዐ࿔Ӳຕ਍๮֩๟ᆈ࿔Ӳຕ਍๮֩‫ڦ‬ᅳ࿔Lj৤൩ଌ঴‫݋‬ᅳዐ੗ీ٪ሞ‫ڦ‬ᇕჾፇኯई‫݋‬ᅳ‫ٱ‬ဃLjADIփ‫݋ܔ‬ᅳዐ٪ሞ‫ֶڦ‬ᅴईᆯׂُิ‫ٱڦ‬ဃ޶ሴăසႴඓණඪࢆَᇕ‫ڦ‬ጚඓႠLj൩֖੊ADI༵ࠃ‫ڦ‬ ፌႎᆈ࿔Ӳຕ਍๮֩ă Rev. 0 | Page 1 of 28 ADF4350 ణ୤ ༬Ⴀ ................................................................................................... 1 ᆌᆩ ................................................................................................... 1 ߁ຎ ................................................................................................... 1 ࠀీ઀཮ ........................................................................................... 1 Ⴊ۩૦๏ ........................................................................................... 2 रຍࡀ߭ ........................................................................................... 3 ้Ⴞ༬Ⴀ .................................................................................. 5 ਨ‫ܔ‬ፌ‫ۨܮٷ‬ኵ ............................................................................. 6 ৗ༹࠶ຕଉ .............................................................................. 6 ESDয়ߢ ................................................................................... 6 ᆅগದዃࢅࠀీ௮ຎ ..................................................................... 7 ‫ۆ‬႙߾ፕ༬Ⴀ .................................................................................. 9 ‫ۉ‬ୟ௮ຎ ........................................................................................ 11 एጚ‫ۉ‬უ๼෇և‫ ݴ‬.............................................................. 11 RFN‫ݴ‬ೕഗ ............................................................................ 11 INTĂFRACĂMODᇑR‫ݴ‬ೕഗ‫࠲ڦ‬ဣ ........................ 11 ኝຕN‫ݴ‬ೕఇ๕ .................................................................... 11 R‫ݴ‬ೕഗ ................................................................................. 11 ६ೕ६၎ഗ(PFD)ࢅ‫ࢁۉ‬ԭ .............................................. 11 MUXOUTࢅLOCKॠ֪ .................................................... 12 ๼෇ᅎ࿋स٪ഗ ................................................................... 12 Պ‫ײ‬ఇ๕ ................................................................................ 12 VCO ........................................................................................ 12 ๼‫؜‬प .................................................................................... 13 स٪ഗ཮ ........................................................................................ 14 स٪ഗ0 .................................................................................. 18 Ⴊ۩૦๏ 2008౎11ሆ—Ⴊ۩Ӳ0ǖ‫؛‬๔Ӳ स٪ഗ1 .................................................................................. 18 स٪ഗ2 .................................................................................. 18 स٪ഗ3 .................................................................................. 20 स٪ഗ4 .................................................................................. 20 स٪ഗ5 .................................................................................. 20 ‫؛‬๔ࣅႾଚ .......................................................................... 21 RFೕ୲ࢇ‫ׯ‬ഗǖᅃ߲‫ݔࠀׯ‬૩ ........................................ 21 ఇຕ ......................................................................................... 21 ֖੊Ԡೕഗࢅ֖੊‫ݴ‬ೕഗ ................................................. 21 12࿋੗Պ‫ײ‬ఇຕ ................................................................... 21 ३ณዜཌᅜ໫‫܌‬໮้ۨक़ ................................................. 22 ሗොᆫࣅࢅ੺໏໮ۨ .......................................................... 22 ੺໏໮้ۨۨഗࢅस٪ഗႾଚ ........................................ 22 ੺໏໮ۨ๖૩ ....................................................................... 22 ੺໏໮ۨǖ࣍ୟ୳հഗྊ೫ ............................................. 23 ሗොऐ዆ ................................................................................ 23 ሗොᅃዂႠࢅၭຕሗොᆫࣅ ............................................. 24 ၎࿋ምཞօ ............................................................................ 24 ᆌᆩ႑တ ........................................................................................ 25 ኱থՎೕۙ዆ഗ ................................................................... 25 থ੨ ......................................................................................... 26 ႊೌप‫ހ‬ጎ‫ڦ‬PCBยऺኸళ ............................................. 26 ๼‫؜‬೅ದ ................................................................................ 27 ྔႚ؅٫ ........................................................................................ 28 ۩ࠔኸళ ................................................................................ 28 Rev. 0 | Page 2 of 28 本页已使用福昕阅读器进行编辑。 福昕软件(C)2005-2010,版权所有, 仅供试用。 ADF4350 रຍࡀ߭ ‫ݥأ‬ଷᆶຫ௽LjAVDD = DVDD = VVCO = SDVDD = VP = 3.3 V ± 10%ǗAGND = DGND = 0 VǗTA = TMIN዁TMAXă߾ፕ࿒‫ྺྷݔ܈‬ −40°C዁+85°Că ՗1 ֖ຕ REFIN༬Ⴀ ๼෇ೕ୲ ๼෇ଳ௺‫܈‬ ๼෇‫ۉ‬ඹ ๼෇‫ୁۉ‬ ६၎ഗ ६၎ഗೕ୲2 ‫ࢁۉ‬ԭ ICPဌ/ᇸ‫ୁۉ‬3 ߛኵ ‫گ‬ኵ RSET‫ྷݔ‬ ဌ‫ୁۉ‬ᇑᇸ‫ୁۉ‬೅ದ ICPᇑVCP ICPᇑ࿒‫܈‬ இड๼෇ ๼෇ߛ‫ۉ‬უVINH ๼෇‫ۉگ‬უVINL ๼෇‫ୁۉ‬IINH/IINL ๼෇‫ۉ‬ඹCIN இड๼‫؜‬ ๼‫ۉߛ؜‬უVOH ๼‫ୁۉߛ؜‬IOH ๼‫ۉگ؜‬უVOL ‫ۉ‬ᇸ AVDD DVDD, VVCO, SDVDD, VP DIDD + AIDD4 ๼‫ݴ؜‬ೕഗ IVCO4 IRFOUT4 ‫ࡼࠀگ‬ລ௥ఇ๕ RF๼‫؜‬༬Ⴀ ፌ‫ٷ‬VCO๼‫؜‬ೕ୲ ፌၭVCO๼‫؜‬ೕ୲ ๑ᆩ‫ݴ‬ೕഗ้ፌၭVCO๼‫؜‬ೕ୲ ፌၭኵ Bप ‫ۆ‬႙ኵ ፌ‫ٷ‬ኵ ‫ڇ‬࿋ ཉॲ/ጀ๥ 10 105 MHz සࡕf < 10 MHzLjඓԍუӦ୲‫ٷ‬ᇀ21 V/μs 0.7 AVDD V p-p AVDD/2ೋዃ1 10 pF ±60 μA 电流是直流这个值很小代表 输入频率直流信号很小 32 MHz 5 0.312 RSET = 5.1 kΩ mA 电荷泵电流越大相位噪声越小 mA 2.7 10 kΩ 2 % 0.5 V ≤ VCP ≤ 2.5 V 1.5 % 0.5 V ≤ VCP ≤ 2.5 V 2 % VCP = 2.0 V 1.5 V 0.6 V ±1 μA 3.0 pF DVDD − 0.4 V 500 μA 0.4 V ჋ስCMOS๼‫؜‬ IOL = 500 μA 3.0 3.6 V AVDD 21 27 mA ኄၵ‫ۉ‬უՂႷ‫ڪ‬ᇀAVDD 6 to 24 mA ௅߲ܾ‫ݴ‬ೕ๼‫؜‬ၩࡼ6 mA 70 80 mA 21 26 mA RF๼‫؜‬प੗Պ‫ײ‬ 7 1000 μA 2200 137.5 4400 MHz MHz MHz एհVCOఇ๕ 2200 MHzएհ๼‫؜‬Lj჋ስ16‫ݴ‬ೕ VCOଳ௺‫܈‬ ླྀೕ)ਸ࣍* ઙೕ)ਸ࣍* ၿհ‫*ْܾ)ݴׯ‬ ၿհ‫)ݴׯ‬ෙْ* ၿհ‫*ْܾ)ݴׯ‬ ၿհ‫)ݴׯ‬ෙْ* ፌၭRF๼‫୲ࠀ؜‬5 ፌ‫ٷ‬RF๼‫୲ࠀ؜‬5 ๼‫୲ࠀ؜‬հ‫ۯ‬ ፌၭVCOۙၿ‫ۉ‬უ ፌ‫ٷ‬VCOۙၿ‫ۉ‬უ 33 MHz/V 1 MHz/V 90 kHz ൻ‫ۯ‬2.00 VSWR޶ሜ −19 dBc एհVCO๼‫؜‬ −13 dBc एհVCO๼‫؜‬ −20 dBc ‫ݴ‬ೕVCO๼‫؜‬ −10 dBc ‫ݴ‬ೕVCO๼‫؜‬ −4 dBm 3dBօ৊੗Պ‫ײ‬ 5 dBm ±1 dB 0.5 V 2.5 V Rev. 0 | Page 3 of 28 ADF4350  ֖ຕ ሯำ༬Ⴀ VCO၎࿋ሯำႠీ6 ࡃᅃࣅ‫ాټ‬၎࿋Ԩ‫ڹ‬ሯำ7 ‫ాټ‬၎࿋ሯำ8 ओ‫ݴ‬਩‫ߵݛ‬۶‫ۯ‬9 PFDೕ୲ᆅഐ‫ڦ‬ሗො႑ࡽ ๑ీRFৢᅼ้‫ڦ‬႑ࡽ‫ۉ‬ೝ ፌၭኵ Bप ‫ۆ‬႙ኵ ፌ‫ٷ‬ኵ ‫ڇ‬࿋ ཉॲ/ጀ๥ −89 −114 −134 −148 −86 −111 −134 −145 −83 −110 −132 −145 −213 −97 0.5 −70 −40 dBc/Hz dBc/Hz dBc/Hz dBc/Hz dBc/Hz dBc/Hz dBc/Hz dBc/Hz dBc/Hz dBc/Hz dBc/Hz dBc/Hz dBc/Hz dBc/Hz ps dBc dBm 10 kHzೋᅎĂ2.2 GHzሜհ 100 kHzೋᅎĂ2.2 GHzሜհ 1 MHzೋᅎĂ2.2 GHzሜհ 5 MHzೋᅎĂ2.2 GHzሜհ 10 kHzೋᅎĂ3.3 GHzሜհ 100 kHzೋᅎĂ3.3 GHzሜհ 1 MHzೋᅎĂ3.3 GHzሜհ 5 MHzೋᅎĂ3.3 GHzሜհ 10 kHzೋᅎĂ4.4 GHzሜհ 100 kHzೋᅎĂ4.4 GHzሜհ 1 MHzೋᅎĂ4.4 GHzሜհ 5 MHzೋᅎĂ4.4 GHzሜհ 3 kHzೋᅎĂ2113.5 MHzሜհ 1 ঍ୁ᳘ࢇඓԍAVDD/2ೋዃă 2 ཚࡗยऺԍኤăᄣೌঢ়ࡗ֪๬Ljᅜඓԍ‫ࢇޙ‬Քጚᄲ൱ă 3 ాև߀ՎICPᅜ๑࣍ୟሺᅮሞኝ߲ೕ୲‫ాྷݔ‬ԍ‫׼‬࿘ۨă 4 TA = 25°CǗAVDD = DVDD = VVCO = 3.3 VǗᇨ‫ݴ‬ೕ = 8/9ǗfREFIN = 100 MHzǗfPFD = 25 MHzǗfRF = 4.4 GHză 5 50 Ω‫ۉ‬ፆথVVCOLjൻ‫ۯ‬50 Ω޶ሜă֪ଉࠀ୲้‫ޤ‬ዺRF๼‫্؜‬ᆩă‫ޤ‬ዺ๼‫ࡼࠀڦ؜‬ᇑዷ๼‫؜‬၎ཞă 6 VCOሯำሞਸ࣍ཉॲူ֪ଉă 7 ኄ߲ຕኵ੗ᆩᇀඪࢆᆌᆩ‫ڦ‬၎࿋ሯำऺ໙ăऺ໙VCO๼‫ాټڦ܋؜‬၎࿋ሯำႠీ้Lj൩๑ᆩᅜူࠅ๕ǖ−213 + 10log(fPFD) + 20logNă໯ߴ‫ڦ؜‬ኵ๟ኍ‫ܔ‬ፌ‫گ‬ ሯำఇ๕ă 8 fREFIN = 100 MHzǗfPFD = 25 MHzǗೋᅎೕ୲ = 10 kHzǗVCOೕ୲ = 4227 MHzLj๑ీܾ‫ݴ‬ೕ๼‫؜‬ăRFOUT = 2113.5 MHzǗN = 169Ǘ࣍ୟ‫ = ੻ټ‬40 kHzLjICP = 313 μAǗ‫گ‬ሯำఇ๕ăሯำ๟૧ᆩEVAL-ADF4350EB1ZࢅAgilent E5052A႑ࡽᇸ‫ݴ‬ဆᅏ֪‫ڥ‬ă 9 fREFIN = 100 MHzǗfPFD = 25 MHzǗVCOೕ୲ = 4400 MHzLjRFOUT = 4400 MHzǗN = 176Ǘ࣍ୟ‫ = ੻ټ‬40 kHzLjICP = 313 μAǗ‫گ‬ሯำఇ๕ăሯำ๟૧ᆩ EVAL-ADF4350EB1ZࢅAgilent E5052A႑ࡽᇸ‫ݴ‬ဆᅏ֪‫ڥ‬ă Rev. 0 | Page 4 of 28 ADF4350 ้Ⴞ༬Ⴀ ‫ݥأ‬ଷᆶຫ௽LjAVDD = DVDD = VVCO = SDVDD = VP = 3.3 V ± 10%ǗAGND = DGND = 0 VǗ๑ᆩ1.8 Vࢅ3 Vஇड‫ۉ‬ೝǗTA = TMIN ዁TMAXă ՗2 ֖ຕ t1 t2 t3 t4 t5 t6 t7 ၌ኵDŽBपDž 20 10 10 25 25 10 20 ‫ڇ‬࿋ ns(ፌၭኵ) ns(ፌၭኵ) ns(ፌၭኵ) ns(ፌၭኵ) ns(ፌၭኵ) ns(ፌၭኵ) ns(ፌၭኵ) ֪๬ཉॲ/ጀ๥ LEยዃ้क़ DATA‫ڟ‬CLKยዃ้क़ DATA‫ڟ‬CLKԍ‫้׼‬क़ CLKߛ‫ۉ‬ೝ‫׼‬Ⴤ้क़ CLK‫ۉگ‬ೝ‫׼‬Ⴤ้क़ CLK‫ڟ‬LEยዃ้क़ LEஞ؋੻‫܈‬ CLK t4 t5 DATA DB31 (MSB) t2 t3 DB30 DB2 (CONTROL BIT C3) DB1 (CONTROL BIT C2) LE t1 LE ཮2. ้Ⴞ཮ DB0 (LSB) (CONTROL BIT C1) t7 t6 07325-002 Rev. 0 | Page 5 of 28 ADF4350 ਨ‫ܔ‬ፌ‫ۨܮٷ‬ኵ ‫ݥأ‬ଷᆶຫ௽LjTA = 25°Că ՗3 ֖ຕ AVDD዁GND1 AVDD዁DVDD VVCO዁GND VVCO዁AVDD ຕጴI/O‫ۉ‬უ዁GND ఇెI/O‫ۉ‬უ዁GND REFIN዁GND ߾ፕ࿒‫ྷݔ܈‬ ٪‫ئ‬࿒‫ྷݔ܈‬ ፌߛ঳࿒ LFCSP θJAඤፆੇ (ࡰಎࡰথ) ࣮ୁࡰ ‫ރ‬ኵ࿒‫܈‬ ‫ރ‬ኵ࿒‫้܈‬क़ 1 GND = AGND = DGND = 0 V ‫ۨܮ‬ኵ −0.3 V ዁ +3.9 V −0.3 V ዁ +0.3 V −0.3 V ዁ +3.9 V −0.3 V ዁ +0.3 V −0.3 V ዁ VDD + 0.3 V −0.3 V ዁ VDD + 0.3 V −0.3 V ዁ VDD + 0.3 V −40°C ዁ +85°C −65°C ዁ +125°C 150°C 27.3°C/W 260°C 40 ௱ ጀᅪLj‫؜ג‬ฉຎਨ‫ܔ‬ፌ‫ۨܮٷ‬ኵ੗ీࣷ‫ڞ‬ዂഗॲᆦ৳Ⴀ໦ ࣋ăኄኻ๟‫ۨܮ‬ᆌ૰ኵLjփภतഗॲሞኄၵईඪࢆഄ໲ཉ ॲူ‫؜ג‬Ԩरຍࡀ߭ኸՔ‫ీࠀڦ‬Ⴀ֡ፕă‫׊‬೺ሞਨ‫ܔ‬ፌ‫ٷ‬ ‫ۨܮ‬ኵཉॲူ߾ፕࣷᆖၚഗॲ‫ڦ‬੗੍Ⴀă ԨഗॲྺߛႠీRFण‫ۉׯ‬ୟLjESD‫ۨܮ‬ኵၭᇀ0.5 kVLj‫ܔ‬ ESD(ৢ‫ߌ௺)ۉݣۉ‬ăӭሏࢅጎದ้ᆌ֑ൽ๢‫ٯݔݞڦړ‬ แă ৗ༹࠶ຕଉ 24202 (CMOS)ࢅ918 (ມटႠ) ESDয়ߢ ESD(ৢ‫ߌ௺)ۉݣۉ‬ഗॲă ‫ۉټ‬ഗॲࢅ‫ۉ‬ୟӱ੗ీࣷሞுᆶִਥ‫ڦ‬൧઄ူ‫ۉݣ‬ă ৑࠶Ԩׂ೗ਏᆶጆ૧ईጆᆩԍࢺ‫ۉ‬ୟLj‫ڍ‬ሞᇜ‫ీߛڟ‬ ଉESD้Ljഗॲ੗ీࣷ໦࣋ăᅺُLjᆌ‫֑ړ‬ൽ๢‫ڦړ‬ ESD‫ٯݔݞ‬แLjᅜՆ௨ഗॲႠీူইईࠀీෟ฿ă Rev. 0 | Page 6 of 28 ᆅগದዃࢅࠀీ௮ຎ 本页已使用福昕阅读器进行编辑。 福昕软件(C)2005-2010,版权所有, 仅供试用。 ADF4350 32 SDVDD 31 SDGND 30 MUXOUT 29 REFIN 28 DVDD 27 DGND 26 PDBRF 25 LD CLK 1 DATA 2 LE 3 CE 4 SW 5 VP 6 CPOUT 7 CPGND 8 PIN 1 INDICATOR ADF4350 TOP VIEW (Not to Scale) 24 VREF 23 VCOM 22 RSET 21 AGNDVCO 20 VTUNE 19 TEMP 18 AGNDVCO 17 VVCO AGND 9 AVDD 10 AGNDVCO 11 RFOUTA+ 12 RFOUTA− 13 RFOUTB+ 14 RFOUTB− 15 VVCO 16 07325-003 ՗4. ᆅগࠀీ௮ຎ ᆅগՊࡽ ᆅগఁ‫׬‬ 1 CLK 2 DATA 3 LE 4 CE 5 SW 6 VP 7 CPOUT 8 CPGND 9 AGND 10 AVDD 11, 18, 21 12 13 AGNDVCO RFOUTA+ RFOUTA− 14 RFOUTB+ 15 RFOUTB− 16, 17 VVCO 19 TEMP 20 VTUNE NOTES 1. THE LFCSP HAS AN EXPOSED PADDLE THAT MUST BE CONNECTED TO GND. ཮3. ᆅগದዃ ௮ຎ ‫ز‬ႜ้ዓ๼෇ăຕ਍ሞCLKฉืᄂ้ደ߲๼෇32࿋ᅎ࿋स٪ഗăُ๼෇ྺߛፆੇCMOS๼෇ă ‫ز‬ႜຕ਍๼෇ă‫ز‬ႜຕ਍ᅜMSBᆫံ‫ݛ‬๕ेሜLjෙ߲LSBᆩፕ੦዆࿋ăُ๼෇ྺߛፆੇCMOS๼෇ă ेሜ๑ీLjCMOS๼෇ă‫ړ‬LEՎྺߛ‫ۉ‬ೝ้Lj٪‫ئ‬ሞᅎ࿋स٪ഗዐ‫ڦ‬ຕ਍ሜ෇ෙ߲LSB໯჋ስ‫ڦ‬स٪ഗă ႊೌ๑ీăُᆅগ‫ڦ‬இड‫ۉگ‬ೝॽ࠲܏ഗॲLjժ๑‫ࢁۉ‬ԭ৊෇ෙༀఇ๕ăߵ਍࠲܏࿋‫ڦ‬ጒༀփཞLjُᆅগ‫ڦ‬ இडߛ‫ۉ‬ೝॽ๑ഗॲฉ‫ۉ‬ă ੺໏໮ۨਸ࠲ă๑ᆩ੺໏໮ۨఇ๕้LjՂႷॽ࣍ୟ୳հഗᇑُᆅগ၎૶ă ‫ࢁۉ‬ԭ‫ۉ‬ᇸăُᆅগႷ‫ڪ‬ᇀAVDDă዁‫ڦ֫ں‬ඁ᳘‫ۉ‬ඹᆌ৑੗ీ੍ৎُᆅগă ‫ࢁۉ‬ԭ๼‫؜‬ă๑ీ้Ljُᆅগၠྔև࣍ୟ୳հഗ༵ࠃ±ICPă࣍ୟ୳հഗ‫ڦ‬๼‫ڟ૶؜‬VTUNELjᅜൻ‫ాۯ‬ևVCOă ‫ࢁۉ‬ԭথ‫ں‬ăኄ๟CPOUT‫ڦ‬থ‫࣮ں‬ୟᆅগă ఇె‫ں‬ăኄ๟AVDD‫ڦ‬থ‫࣮ں‬ୟᆅগă ఇె‫ۉ‬ᇸă‫ྺྷݔ‬3.0 V዁3.6 Vă዁ఇె‫ڦ֫ں‬ඁ᳘‫ۉ‬ඹᆌ৑੗ీ੍ৎُᆅগăAVDD‫ڦ‬ኵՂႷᇑDVDD၎ཞă VCOఇె‫ں‬ăኄၵ๟VCO‫ڦ‬থ‫࣮ں‬ୟᆅগă VCO๼‫؜‬ă๼‫ۉ؜‬ೝ੗Պ‫ײ‬ă༵ࠃVCOएհ๼‫؜‬ई‫ݴ‬ೕ๼‫؜‬ă ࢻցVCO๼‫؜‬ă๼‫ۉ؜‬ೝ੗Պ‫ײ‬ă༵ࠃVCOएհ๼‫؜‬ई‫ݴ‬ೕ๼‫؜‬ă ‫ޤ‬ዺVCO๼‫؜‬ă๼‫ۉ؜‬ೝ੗Պ‫ײ‬ă༵ࠃVCOएհ๼‫؜‬ई‫ݴ‬ೕ๼‫؜‬ă ࢻց‫ޤ‬ዺVCO๼‫؜‬ă๼‫ۉ؜‬ೝ੗Պ‫ײ‬ă༵ࠃVCOएհ๼‫؜‬ई‫ݴ‬ೕ๼‫؜‬ă VCO‫ۉ‬ᇸă‫ྺྷݔ‬3.0 V዁3.6 Vă዁ఇె‫ڦ֫ں‬ඁ᳘‫ۉ‬ඹᆌ৑੗ీ੍ৎኄၵᆅগăVVCO‫ڦ‬ኵՂႷᇑAVDD၎ཞă ࿒‫܈‬ց‫׋‬๼‫؜‬ă዁‫ڦ֫ں‬ඁ᳘‫ۉ‬ඹᆌ৑੗ీ੍ৎُᆅগă VCO‫ڦ‬੦዆๼෇ăُ‫ۉ‬უਦۨ๼‫؜‬ೕ୲Ljٗ‫ܔ‬CPOUT๼‫ۉ؜‬უ‫୳ڦ‬հܸइ‫ڥ‬ă Rev. 0 | Page 7 of 28 ADF4350 ! ᆅগՊࡽ 22 ᆅগఁ‫!׬‬ RSET 23 VCOM 本页已使用福昕阅读器进行编辑。 福昕软件(C)2005-2010,版权所有, 仅供试用。  ௮ຎ ሞُᆅগᇑGNDኮक़૶ᅃ߲‫ۉ‬ፆ੗ยዃ‫ࢁۉ‬ԭ๼‫ୁۉ؜‬ăRSETᆅগ‫ڦ‬Ք‫ۉ׬‬უೋዃྺ0.55 VăICPᇑRSET‫ڦ‬ ࠲ဣྺǖ 25.5 ICP = R SET ഄዐǖ RSET = 5.1 kΩ ICP = 5 mA ೋዃۙၿ‫ྷݔ‬ᅃӷ‫ాڦ‬ևց‫׋‬ব‫ۅ‬ă዁‫ڦ֫ں‬ඁ᳘‫ۉ‬ඹᆌ৑੗ీ੍ৎُᆅগă 24 VREF एጚ‫ۉ‬უă዁‫ڦ֫ں‬ඁ᳘‫ۉ‬ඹᆌ৑੗ీ੍ৎُᆅগă 25 LD ໮ۨॠ֪๼‫؜‬ᆅগăُᆅগ๼‫؜‬இडߛ‫ۉ‬ೝ้՗๖PLL໮ۨăஇड‫ۉگ‬ೝ๼‫؜‬՗๖PLL฿໮ă 26 PDBRF RF࠲܏ăُᆅগྺஇड‫ۉگ‬ೝ้LjRF๼‫ৢ؜‬ᅼăُࠀీᄺ๟෉ॲ੗Պ‫ڦײ‬ă 27 DGND ຕጴ‫ں‬ăDVDD‫ڦ‬থ‫࣮ں‬ୟᆅগă 28 DVDD ຕጴ‫ۉ‬ᇸăُᆅগ‫ۉڦ‬უᆌᇑAVDD၎ཞă዁‫ڦ֫ں‬ඁ᳘‫ۉ‬ඹᆌ৑੗ీ੍ৎُᆅগă 29 REFIN एጚ๼෇ăኄ๟ᅃ߲CMOS๼෇LjՔ‫׬‬ពኵྺVDD/2Ljժਏᆶ100 kΩ‫ڦ‬኱ୁ‫ڪ‬ၳ๼෇‫ۉ‬ፆăُ๼෇੗ᅜ֑ ᆩTTLईCMOSৗናൻ‫ۯ‬Ljईኁ঍ୁ᳘ࢇă要求有源晶振输出为方波HCMOS 30 MUXOUT ‫ܠ‬ୟްᆩഗ๼‫؜‬ăُ‫ܠ‬ୟްᆩഗ๼‫؜‬ሎႹٗྔև‫ݡ‬࿚໮ۨॠ֪Ăঢ়ࡗ໫‫ڦݣ‬RFईएጚೕ୲ă 31 SDGND ຕጴΣ-Δۙ዆ഗথ‫ں‬ăΣ-Δۙ዆ഗ‫ڦ‬থ‫࣮ں‬ୟᆅগă 32 SDVDD ຕጴΣ-Δۙ዆ഗ‫ۉڦ‬ᇸᆅগăഄ‫ۉ‬უᆌᇑAVDD၎ཞă዁‫ڦ֫ں‬ඁ᳘‫ۉ‬ඹᆌ৑੗ీ੍ৎُᆅগă 33 EP ஋୞ࡰಎă Rev. 0 | Page 8 of 28 ‫ۆ‬႙߾ፕ༬Ⴀ PHASE NOISE (dBc/Hz) –40 –50 –60 –70 –80 –90 –100 –110 –120 –130 –140 –150 –160 1k 10k 100k 1M 10M FREQUENCY (Hz) ཮4. ਸ࣍VCO၎࿋ሯำLj2.2 GHz 100M PHASE NOISE (dBc/Hz) –40 –50 –60 –70 –80 –90 –100 –110 –120 –130 –140 –150 –160 1k –40 –50 –60 –70 –80 –90 –100 –110 –120 –130 –140 –150 –160 1k 10k 100k 1M 10M FREQUENCY (Hz) ཮5. ਸ࣍VCO၎࿋ሯำLj3.3 GHz 100M 10k 100k 1M 10M FREQUENCY (Hz) ཮6. ਸ࣍VCO၎࿋ሯำLj4.4 GHz 100M PHASE NOISE (dBc/Hz) 07325-030 PHASE NOISE (dBc/Hz) 07325-029 PHASE NOISE (dBc/Hz) 07325-028 PHASE NOISE (dBc/Hz) 本页已使用福昕阅读器进行编辑。 福昕软件(C)2005-2010,版权所有, 仅供试用。 ADF4350 07325-031 –70 –80 –90 –100 FUND DIV2 DIV4 DIV8 DIV16 –110 –120 –130 –140 –150 –160 –170 1k 10k 100k 1M 10M 100M FREQUENCY (Hz) ཮7.Կ࣍၎࿋ሯำLjएհVCOࢅ‫ݴ‬ೕഗLj VCO = 2.2 GHzLjPFD = 25 MHzLj࣍ୟ‫ = ੻ټ‬40 kHz –70 –80 –90 –100 FUND DIV2 DIV4 DIV8 DIV16 –110 –120 –130 –140 –150 –160 –170 1k 10k 100k 1M 10M 100M FREQUENCY (Hz) ཮8.Կ࣍၎࿋ሯำLjएհVCOࢅ‫ݴ‬ೕഗLj VCO = 3.3 GHzLjPFD = 25 MHzLj࣍ୟ‫ = ੻ټ‬40 kHz –70 –80 –90 –100 FUND DIV2 DIV4 DIV8 DIV16 –110 –120 –130 –140 –150 –160 –170 1k 10k 100k 1M 10M 100M FREQUENCY (Hz) ཮9.Կ࣍၎࿋ሯำLjएհVCOࢅ‫ݴ‬ೕഗLj VCO = 4.4 GHzLjPFD = 25 MHzLj࣍ୟ‫ = ੻ټ‬40 kHz 07325-032 07325-033 Rev. 0 | Page 9 of 28 ADF4350 0 –20 –40 PHASE NOISE (dBc/Hz) –60 –80 –100 –120 –140 –160 1k 10k 100k 1M 10M FREQUENCY (Hz) ཮10. ኝຕN‫ݴ‬ೕ၎࿋ሯำࢅሗොႠీăGSM900ೕ܎Lj RFOUT = 904 MHzLjREFIN = 100 MHzLjPFD = 800 kHzLj ჋ስ4‫ݴ‬ೕ๼‫؜‬Ǘ࣍ୟ୳հഗ‫ = ੻ټ‬16 kHzLjཚ‫ڢ‬क़߰ = 200 kHză 0 –20 –40 PHASE NOISE (dBc/Hz) –60 –80 –100 –120 –140 –160 1k 10k 100k 1M 10M FREQUENCY (Hz) ཮11. ၭຕN‫ݴ‬ೕሗොႠీă‫گ‬ሯำఇ๕LjW-CDMAೕ܎Lj RFOUT = 2113.5 MHzLjREFIN = 100 MHzLjPFD = 25 MHzLj ჋ስ2‫ݴ‬ೕ๼‫؜‬Ǘ࣍ୟ୳հഗ‫ = ੻ټ‬40 kHzLjཚ‫ڢ‬क़߰ = 200 kHză 0 –20 –40 PHASE NOISE (dBc/Hz) –60 –80 –100 –120 –140 –160 1k 10k 100k 1M 10M FREQUENCY (Hz) ཮12. ၭຕN‫ݴ‬ೕሗොႠీă‫گ‬ሗොఇ๕LjW-CDMAೕ܎Lj RFOUT = 2113.5 MHzLjREFIN = 100 MHzLjPFD = 25 MHzLj ჋ስ2‫ݴ‬ೕ๼‫؜‬Ǘ࣍ୟ୳հഗ‫ = ੻ټ‬40 kHzLjཚ‫ڢ‬क़߰ = 200 kHză 07325-036 FREQUENCY (GHz) 07325-035 PHASE NOISE (dBc/Hz) 07325-034 PHASE NOISE (dBc/Hz)  0 –20 –40 –60 –80 –100 –120 –140 07325-037 –160 1k 10k 100k 1M 10M FREQUENCY (Hz) ཮13. ၭຕN‫ݴ‬ೕሗොႠీă‫گ‬ሯำఇ๕Lj RFOUT = 2.591 GHzLjREFIN = 105 MHzLjPFD = 17.5 MHzLj ჋ስ1‫ݴ‬ೕ๼‫؜‬Ǘ࣍ୟ୳հഗ‫ = ੻ټ‬20 kHzLjཚ‫ڢ‬क़߰ = 100 kHză 0 –20 –40 –60 –80 –100 –120 –140 07325-038 –160 1k 10k 100k 1M 10M FREQUENCY (Hz) ཮14. ၭຕN‫ݴ‬ೕሗොႠీă‫گ‬ሗොఇ๕Lj RFOUT = 2.591 GHzLjREFIN = 105 MHzLjPFD = 17.5 MHzLj ჋ስ1‫ݴ‬ೕ๼‫؜‬Ǘ࣍ୟ୳հഗ‫ = ੻ټ‬20 kHzLjཚ‫ڢ‬क़߰ = 100 kHz (ጀᅪǖ‫گ‬ሗොఇ๕ူLjၭຕሗොᅙၩ‫أ‬Ljৈ฻ူኝຕՉহሗො)ă 3.02 CSR OFF 3.01 CSR ON 3.00 2.99 2.98 2.97 2.96 2.95 0 100 200 300 400 500 600 TIME (μs) ཮15. CSRਸഔࢅ࠲Կଇዖ൧઄ူ100 MHzཌೕ (ٗ3070 MHz‫ڟ‬2970 MHz)‫ڦ‬໮้ۨक़Lj PFD = 25 MHzLjICP = 313 μALj࣍ୟ୳հഗ‫ = ੻ټ‬20 kHză 07325-039 Rev. 0 | Page 10 of 28  ‫ۉ‬ୟ௮ຎ एጚ‫ۉ‬უ๼෇և‫!ݴ‬ एጚ‫ۉ‬უ๼෇पස཮16໯๖ăSW1ࢅSW2ྺ‫׉‬Կਸ࠲ă SW3‫׉‬ਸăഔ‫ײ܏࠲ۯ‬ႾࢫLjSW3ԿࢇLjSW1ࢅSW2܏ ਸLjඓԍ࠲܏೺क़REFINᆅগ࿮޶ሜă POWER-DOWN CONTROL NC 100k REFIN NC SW2 SW1 SW3 NO TO R COUNTER BUFFER ཮16. एጚ‫ۉ‬უ๼෇प RF N ‫ݴ‬ೕഗ RF N‫ݴ‬ೕഗ੗ᅜሞPLL‫ݒ‬ઍୟ০ዐ༵ࠃᅃ߲‫ݴ‬ೕԲă‫ݴ‬ೕ Բᆯࠓ‫ݴُׯ‬ೕഗ‫ڦ‬INTĂFRACࢅMOD‫ڦ‬ኵਦۨă INTĂFRACĂMODᇑR‫ݴ‬ೕഗ‫࠲ڦ‬ဣ ૧ᆩINTĂFRACࢅMOD‫ڦ‬ኵᅜतRऺຕഗLj੗ᅜׂิक़߰ ྺPFDೕ୲‫ݴڦ‬ຕ‫ڦ‬๼‫؜‬ೕ୲ăၘ൧९“RFೕ୲ࢇ‫ׯ‬ഗǖ ᅃ߲‫ݔࠀׯ‬૩”և‫ݴ‬ăRF VCOೕ୲(RFOUT)ࠅ๕ྺǖ RFOUT = fPFD × (INT + (FRAC/MOD)) (1) ഄዐǖRFOUT๟ྔև‫ۉ‬უ੦዆ና‫ږ‬ഗ(VCO)‫ڦ‬๼‫؜‬ೕ୲Ǘ INT๟ܾ৊዆16࿋ऺຕഗ‫ڦ‬ᇨย‫ݴ‬ೕԲ(4/5ᇨ‫ݴ‬ೕഗྺ23዁ 65535Lj8/9ᇨ‫ݴ‬ೕഗྺ75዁65,535)ǗMOD๟ᇨยၭຕఇຕ (2዁4095)ǗFRAC๟ၭຕ‫ݴ‬ೕ‫ݴڦ‬ጱ(0዁MOD − 1)ă fPFD = REFIN × [(1 + D)/(R × (1 + T))] (2) ഄዐǖ REFIN๟एጚ๼෇ೕ୲Ǘ D๟REFINԠೕഗ࿋Ǘ T๟REFIN 2‫ݴ‬ೕ࿋(0ई1)Ǘ R๟ ܾ ৊ ዆ 10࿋ ੗ Պ ‫ ݴ ੊ ֖ ײ‬ೕ ഗ ‫ ڦ‬ᇨ ย ‫ ݴ‬ೕ Բ (1዁ 1023)ă 07325-005 07325-006 本页已使用福昕阅读器进行编辑。 福昕软件(C)2005-2010,版权所有, 仅供试用。 ADF4350 FROM VCO OUTPUT/ OUTPUT DIVIDERS RF N DIVIDER N COUNTER INT REG N = INT + FRAC/MOD TO PFD THIRD-ORDER FRACTIONAL INTERPOLATOR MOD REG FRAC VALUE ཮17. RF INT‫ݴ‬ೕഗ ኝຕN‫ݴ‬ೕఇ๕ සࡕFRAC = 0൐स٪ഗ2 (LDF)‫ڦ‬DB8ยྺ1Ljሶೕ୲ࢇ‫ׯ‬ ഗ߾ፕሞኝຕN‫ݴ‬ೕఇ๕ăැᄲइ‫ڥ‬ኝຕNຕጴ໮ۨॠ ֪Ljᆌॽस٪ഗ2 (LDF)‫ڦ‬DB8ยྺ1ă Rऺຕഗ ૧ᆩ10࿋RऺຕഗLj੗ᅜဦ‫ݴ‬๼෇एጚೕ୲(REFIN)ᅜׂิ PFD‫ڦ‬एጚ้ዓă‫ݴ‬ೕԲ੗ᅜྺ1዁1023ă ६ೕ६၎ഗ(PFD)ࢅ‫ࢁۉ‬ԭ ६ೕ६၎ഗ(PFD)থ๴RऺຕഗࢅNऺຕഗ‫ڦ‬๼෇Ljׂิᇑ ܾኁ‫ڦ‬၎࿋ࢅೕ୲ֶ‫ׯ‬Բ૩‫ڦ‬๼‫؜‬ă཮18๟޿६ೕ६၎ഗ ‫ڦ‬ᇱ૙๖ᅪ཮ăPFDాዃᅃ߲ࠦۨჽ‫׿‬ᇮॲLjᆩઠยዃ‫ݒ‬ ؋‫ֶ࣮ݞ‬ஞ؋੻‫܈‬Ljഄ‫ۆ‬႙ኵྺ3 nsăُஞ؋੗ඓԍPFD ‫ࡧڿد‬ຕዐ࿮ຶ൶Ljܸ༵ٗࠃᅃዂ‫੊֖ڦ‬ሗො຤ೝă HIGH +IN UP D1 Q1 U1 CLR1 DELAY U3 CHARGE PUMP CP 07325-007 HIGH –IN CLR2 DOWN D2 Q2 U2 ཮18. ᇱ૙๖ᅪ཮ Rev. 0 | Page 11 of 28 ADF4350 MUXOUTࢅLOCKॠ֪ ADF4350‫ڦ‬๼‫ܠ؜‬ୟްᆩഗሎႹᆩࢽ‫ݡ‬࿚ႊೌ‫߳ڦ‬ዖాև ‫ۅ‬ăMUXOUTጒༀᆯM3ĂM2ࢅM1੦዆(ၘ൧९཮26)ă཮ 19ᅜ઀཮ႚ๕၂๖କMUXOUTև‫ݴ‬ă R COUNTER INPUT DVDD THREE-STATE-OUTPUT DVDD DGND R COUNTER OUTPUT N COUNTER OUTPUT ANALOG LOCK DETECT DIGITAL LOCK DETECT RESERVED MUX CONTROL MUXOUT 07325-008 ཮19. MUXOUTᇱ૙཮ DGND ๼෇ᅎ࿋स٪ഗ ADF4350ຕጴև‫ݴ‬Ԉઔᅃ߲10࿋RF RऺຕഗĂᅃ߲16࿋RF NऺຕഗĂᅃ߲12࿋FRACऺຕഗࢅᅃ߲12࿋ఇຕऺຕഗă ຕ਍ሞCLK‫ڦ‬௅߲ฉืᄂ้ደ߲๼෇32࿋ᅎ࿋स٪ഗăຕ ਍๼෇‫ݛ‬๕๟MSBᆫံăሞLEฉืᄂ้Ljຕ਍ٗᅎ࿋स٪ ഗ‫د‬๼዁ୃ߲໮٪ഗኮᅃăణՔ໮٪ഗᆯᅎ࿋स٪ഗዐ‫ڦ‬ ෙ߲੦዆࿋)C3ĂC2ࢅC1*‫ڦ‬ጒༀਦۨăኄၵ੦዆࿋๟3߲ LSBǖDB2ĂDB1ࢅDB0Ljස཮2໯๖ă՗5ྺኄၵ࿋‫ڦ‬ኈኵ ՗ă཮23ጺ঳କኄၵ໮٪ഗ‫ڦ‬Պ‫ݛײ‬๕ă ՗5. C3ĂC2ࢅC1ኈኵ՗ ੦዆࿋ C3 C2 C1 0 0 0 0 0 1 0 1 0 0 1 1 1 0 0 1 0 1 स٪ഗ स٪ഗ0 (R0) स٪ഗ1 (R1) स٪ഗ2 (R2) स٪ഗ3 (R3) स٪ഗ4 (R4) स٪ഗ5 (R5) Պ‫ײ‬ఇ๕! ՗5ࢅ཮23዁཮29၂๖କසࢆยዃADF4350‫ڦ‬Պ‫ײ‬ఇ๕ă ADF4350‫ܠڦ‬ዖยዃ֑ᆩມ࣐؋LjԈઔఇຕኵĂ၎࿋ኵĂ R‫ऺݴ‬ຕኵĂ֖੊ԠೕഗĂ֖੊2‫ݴ‬ೕࢅ‫ୁۉ‬ยዃăኄᅪ࿆ ጣLj޿ഗॲᄲ๑ᆩඪࢆມ࣐؋ยዃ‫ڦ‬ႎኵLjՂႷ݀ิଇ߲ ๚ॲă๯ံLjཚࡗႀ෇๢‫ڦړ‬स٪ഗLjॽႎኵ໮٪዁ഗॲ ዐăഄْLjՂႷ‫ܔ‬R0ኴႜᅃْႎ‫ڦ‬ႀ֡ፕă૩සLj߸ႎఇ ຕኵ้LjՂႷႀ෇स٪ഗ0 (R0)Ljᅜඓԍఇຕኵኟඓेሜă VTUNE (V) 1800 2000 2200 2400 2600 2800 3000 3200 3400 3600 3800 4000 4200 4400 4600 07325-009 本页已使用福昕阅读器进行编辑。 福昕软件(C)2005-2010,版权所有, 仅供试用。 स٪ഗ4 (R4)ዐ‫ݴڦ‬ೕഗ჋ስᄺ๟ມ࣐؋Lj‫ڍ‬ཉॲ๟स٪ഗ 2 (R2)‫ڦ‬DB13ྺߛă VCO ADF4350‫ڦ‬VCOాࢃᆯෙ߲‫܀‬૬VCOፇ‫ׯ‬Lj௅߲VCO๑ᆩ 16߲ዘ۠ೕ܎Ljස཮20໯๖LjᅜՍޮ߃ড੻‫ڦ‬ೕ୲‫ྷݔ‬Lj ܸVCOଳ௺‫(܈‬KV)ሶডၭLjփࣷ‫ڞ‬ዂ၎࿋ሯำࢅሗොႠీ ডֶă ฉ‫้ۉ‬ईस٪ഗ0 (R0)߸ႎ้LjVCOࢅೕ܎჋ስஇडࣷጲ‫ۯ‬ ჋ስኟඓ‫ڦ‬VCOࢅೕ܎ă VCOࢅೕ܎჋ስൽ10߲PFDዜ೺ᇑೕ܎჋ስ้ዓ‫ݴ‬ೕഗኵ ‫ױڦ‬ओăVCO VTUNEᇑ࣍ୟ୳հഗ‫ڦ‬๼‫܏؜‬ਸLj૶‫ాڟ‬և एጚ‫ۉ‬უă 2.8 2.4 2.0 1.6 1.2 0.8 0.4 0 FREQUENCY (MHz) ཮20. VTUNEᇑೕ୲‫࠲ڦ‬ဣ Rऺຕഗᆩፕೕ܎჋ስஇड‫้ڦ‬ዓăR‫ݴ‬ೕഗ๼‫܋؜‬ᆶᅃ߲ ੗Պ‫ݴײ‬ೕഗLjሎႹ৊ႜ1዁255‫ݴ‬ೕLjᆯस٪ഗ4 (R4)ዐ‫ڦ‬ ࿋[BS8:BS1]੦዆ă‫ړ‬໯ႴPFDೕ୲ߛᇀ125 kHz้Ljᆌยዃ ‫ݴ‬ೕԲLjᅜྺኟඓ჋ስೕ܎༵ࠃፁࠕ‫้ڦ‬क़ă ჋ስೕ܎ኮࢫLj࣬ްኟ‫׉‬PLL֡ፕă‫ړ‬N‫ݴ‬ೕഗ֑ᆩVCO ๼‫؜‬ൻ‫้ۯ‬LjKV‫ڦ‬Ք‫׬‬ኵྺ33 MHz/VLjईኁྺُኵ‫أ‬ᅜ DăසࡕN‫ݴ‬ೕഗ֑ᆩRF‫ݴ‬ೕഗ๼‫؜‬ൻ‫)ۯ‬ᆯस٪ഗ4 (R4)ዐ ‫ڦ‬Պ‫ײ‬࿋[D12:D10]ᇎᅜ჋ስ*LjሶDྺ๼‫ݴ؜‬ೕഗኵă ADF4350ాዃ၍Ⴀ‫ۉ‬ୟLjᅜॽICPᇑKV‫ױ‬ओ‫ڦ‬Վࣅই዁ፌ ၭLjܸٗԍ‫࣍׼‬ୟ‫੻ټ‬փՎă Rev. 0 | Page 12 of 28 VCO SENSITIVITY (MHz/V) 07325-133 07325-010  VTUNEሞೕ܎ాࢅೕ܎क़Վࣅ้LjVCO‫ڦ‬KVໜኮՎࣅăኍ ‫ܔ‬ೕ୲‫ྷݔ‬ড੻)൐๼‫ݴ؜‬ೕഗփ܏Վࣅ*‫ټ੻ڦ‬ᆌᆩLjᅙ ঢ়ኤ௽ǖ33 MHz/V๟ፌ৛ඓ‫ڦ‬KVኵLjᅺྺ໲ፌথৎೝ਩ ኵă཮21၂๖କKVໜVCOएೕ‫ڦ‬Վࣅᅜतೕ܎‫ڦ‬ೝ਩ኵă ๑ᆩ቏‫ټ‬ยऺ้Ljᆩࢽ੗ీ߸ൡၠᇀ๑ᆩُ཮ă 80 70 60 50 40 30 20 10 0 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6 3.8 4.0 4.2 4.4 4.6 FREQUENCY (GHz) ཮21. KVᇑೕ୲‫࠲ڦ‬ဣ ሞࠦۨೕ୲ᆌᆩዐLjໜጣ࣍ৣ࿒‫܈‬ᆯඤገૐLjADF4350 VTUNE੗ీࣷ߀Վăट‫܋‬൧઄ူLj೏ᅎࣷ‫ڞ‬ዂVTUNEই዁‫ݥ‬ ‫ڦگ׉‬຤ೝ(<0.25 V)Ljܸٗᆅഐ฿໮ăኻᆶ‫ړ‬VCOएೕၭ ᇀ2.95 GHz൐࣍ৣ࿒‫گ܈‬ᇀ0°C้Ljኄ֍ࣷ‫ྺׯ‬࿚༶ă ኄዖ൧઄ူLjසࡕ࣍ৣ࿒‫܈‬ই዁0°CᅜူLjሶႴᄲዘႎย ዃೕ୲)߸ႎR0*Ljᅜ௨VTUNEই዁থৎ0 V‫ڦ‬຤ೝă‫ܔ‬ഗॲ ዘႎՊ‫ײ‬Lj჋ስ߸ࢇ๢‫ڦ‬VCOೕ܎Ljܸٗၩ‫گأ‬VTUNE࿚ ༶ăසࡕ࿒‫܈‬৊ᅃօူইժ‫ࡗג‬20°C)0°Cᅜူ*LjሶᄺႴᄲ ዘႎՊ‫ײ‬ă࣍ৣ࿒‫้ߛื܈‬LjփႴᄲዘႎՊ‫ײ‬ă 本页已使用福昕阅读器进行编辑。 福昕软件(C)2005-2010,版权所有, 仅供试用。 ADF4350 ๼‫؜‬प ADF4350‫ڦ‬RFOUTA+ࢅRFOUTA−ᆅগ૶‫ڟ‬ᆯVCO‫࣐ڦ‬؋๼ ‫؜‬ൻ‫ڦۯ‬NPNֶ‫ڦܔݴ‬ण‫ۉ‬टLjස཮22໯๖ăྺକᆫࣅࠀ ࡼᇑ๼‫୲ࠀ؜‬ኮक़‫࠲ڦ‬ဣLjᆩࢽ੗ᅜཚࡗस٪ഗ4 (R4)ዐ ‫ڦ‬࿋[D2:D1]ยዃ޿ֶ‫ڦܔݴ‬࿂‫ୁۉ‬ă੗ᅜยዃ຺ዖ‫ୁۉ‬຤ ೝă๑ᆩ50 Ω‫ۉ‬ፆᇑAVDD၎૶ժ঍ୁ᳘ࢇ዁50 Ω޶ሜ้Lj ኄၵ‫ୁۉ‬຤ೝ‫ݴ‬՚༵ࠃ−4 dBmĂ−1 dBmĂ+2 dBmࢅ+5 dBm ‫ڦ‬๼‫୲ࠀ؜‬຤ೝăُྔLjᄺ੗ᅜॽଇୟ๼‫ࢇ؜‬ժሞᅃ߲ 1 + 1:1Վუഗई180°ྲ‫ټ‬᳘ࢇഗዐ)֖९“๼‫؜‬೅ದ”և‫*ݴ‬ă සࡕ‫܀ڇ‬๑ᆩኄၵ๼‫؜‬Ljሶፌॅ๼‫؜‬पᆌԈࡤᅃ߲ᇑVVCO ၎૶‫ߌۉୁݴڦ‬ă࿄๑ᆩ‫ࢻڦ‬ց๼‫؜‬ՂႷᆩᇑᅙ๑ᆩ๼‫؜‬ ၎ຼ‫ۉڦ‬ୟ‫܋‬থă ᆅগRFOUTB+ࢅRFOUTB−ฉ٪ሞᅃ߲‫ޤ‬ዺ๼‫؜‬पLj੗༵ࠃ‫ڼ‬ ܾፇֶ‫ݴ‬๼‫؜‬Ljᆩઠൻ‫ۯ‬ഄ໲‫ۉ‬ୟLjփᆩ้੗ᅜ࠲܏ă ADF4350‫ڦ‬ଷᅃ߲༬Ⴀ๟੗ᅜൎ܏RF๼‫؜‬प‫ۉڦ‬ᇸ‫ୁۉ‬Lj ኱‫ڟ‬ຕጴ໮ۨॠ֪‫ۉ‬ୟॠ֪‫ڟ‬ഗॲํ၄໮ۨྺኹăُ༬Ⴀ ੗ཚࡗस٪ഗ4 (R4)ዐ‫ৢ“ڦ‬ᅼ዁ॠ֪‫ڟ‬໮ۨ”(MTLD)࿋๑ ీă RFOUTA+ RFOUTA– VCO BUFFER/ DIVIDE-BY1/2/4/8/16 ཮22. ๼‫؜‬प Rev. 0 | Page 13 of 28 ADF4350 स٪ഗ཮ REGISTER 0 RESERVED 16-BIT INTEGER VALUE (INT) 12-BIT FRACTIONAL VALUE (FRAC) CONTROL BITS DB31 DB30 DB29 DB28 DB27 DB26 DB25 DB24 DB23 DB22 DB21 DB20 DB19 DB18 DB17 DB16 DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 0 N16 N15 N14 N13 N12 N11 N10 N9 N8 N7 N6 N5 N4 N3 N2 N1 F12 F11 F10 F9 F8 F7 F6 F5 F4 F3 F2 F1 C3(0) C2(0) C1(0) REGISTER 1 PRESCALER RESERVED 12-BIT PHASE VALUE (PHASE) DBR1 12-BIT MODULUS VALUE (MOD) DBR 1 CONTROL BITS DB31 DB30 DB29 DB28 DB27 DB26 DB25 DB24 DB23 DB22 DB21 DB20 DB19 DB18 DB17 DB16 DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 0 0 0 0 PR1 P12 P11 P10 P9 P8 P7 P6 P5 P4 P3 P2 P1 M12 M11 M10 M9 M8 M7 M6 M5 M4 M3 M2 M1 C3(0) C2(0) C1(1) REGISTER 2 DOUBLE BUFF LDF LDP PD POLARITY PD CP THREESTATE COUNTER RESET REFERENCE DOUBLER DBR1 RDIV2 DBR1 RESERVED LOW NOISE AND LOW SPUR MODES MUXOUT 10-BIT R COUNTER DBR1 CHARGE PUMP CURRENT SETTING DBR1 CONTROL BITS DB31 DB30 DB29 DB28 DB27 DB26 DB25 DB24 DB23 DB22 DB21 DB20 DB19 DB18 DB17 DB16 DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 0 L2 L1 M3 M2 M1 RD2 RD1 R10 R9 R8 R7 R6 R5 R4 R3 R2 R1 D1 CP4 CP3 CP2 CP1 U6 U5 U4 U3 U2 U1 C3(0) C2(1) C1(0) REGISTER 3 CSR RESERVED VCO POWER DOWN MTLD AUX OUTPUT SELECT AUX OUTPUT ENABLE RF OUTPUT ENABLE RESERVED RESERVED CLK DIV MODE 12-BIT CLOCK DIVIDER VALUE CONTROL BITS DB31 DB30 DB29 DB28 DB27 DB26 DB25 DB24 DB23 DB22 DB21 DB20 DB19 DB18 DB17 DB16 DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 0 0 0 0 0 0 0 0 0 0 0 0 0 F1 0 C2 C1 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 C3(0) C2(1) C1(1) REGISTER 4 FEEDBACK SELECT RESERVED DBB 2 DIVIDER SELECT 8-BIT BAND SELECT CLOCK DIVIDER VALUE AUX OUTPUT POWER OUTPUT POWER CONTROL BITS DB31 DB30 DB29 DB28 DB27 DB26 DB25 DB24 DB23 DB22 DB21 DB20 DB19 DB18 DB17 DB16 DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 0 0 0 0 0 0 0 0 D13 D12 D11 D10 BS8 BS7 BS6 BS5 BS4 BS3 BS2 BS1 D9 D8 D7 D6 D5 D4 D3 D2 D1 C3(1) C2(0) C1(0) REGISTER 5 RESERVED LD PIN MODE RESERVED RESERVED CONTROL BITS DB31 DB30 DB29 DB28 DB27 DB26 DB25 DB24 DB23 DB22 DB21 DB20 DB19 DB18 DB17 DB16 DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 0 0 0 0 0 0 0 0 D15 D14 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 C3(1) C2(0) C1(1) 1 DBR = DOUBLE BUFFERED REGISTER—BUFFERED BY THE WRITE TO REGISTER 0. 2 DBB = DOUBLE BUFFERED BITS—BUFFERED BY THE WRITE TO REGISTER 0, IF AND ONLY IF DB13 OF REGISTER 2 IS HIGH. ཮23. स٪ഗၭ঳ RESERVED 07325-011 Rev. 0 | Page 14 of 28 07325-012  ADF4350 RESERVED 16-BIT INTEGER VALUE (INT) 12-BIT FRACTIONAL VALUE (FRAC) CONTROL BITS DB31 DB30 DB29 DB28 DB27 DB26 DB25 DB24 DB23 DB22 DB21 DB20 DB19 DB18 DB17 DB16 DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 0 N16 N15 N14 N13 N12 N11 N10 N9 N8 N7 N6 N5 N4 N3 N2 N1 F12 F11 F10 F9 F8 F7 F6 F5 F4 F3 F2 F1 C3(0) C2(0) C1(0) N16 N15 ... N5 N4 N3 N2 N1 0 0 ... 0 0 0 0 0 0 0 ... 0 0 0 0 1 0 0 ... 0 0 0 1 0 . . ... . . . . . 0 0 ... 1 0 1 1 0 0 0 ... 1 0 1 1 1 0 0 ... 1 1 0 0 0 . . ... . . . . . 1 1 ... 1 1 1 0 1 1 1 ... 1 1 1 1 0 1 1 ... 1 1 1 1 1 INTEGER VALUE (INT) NOT ALLOWED NOT ALLOWED NOT ALLOWED ... NOT ALLOWED 23 24 ... 65533 65534 65535 INTmin = 75 with prescaler = 8/9 ཮24. स٪ഗ0 (R0) F12 F11 .......... F2 F1 0 0 .......... 0 0 0 0 .......... 0 1 0 0 .......... 1 0 0 0 .......... 1 1 . . .......... . . . . .......... . . . . .......... . . 1 1 .......... 0 0 1 1 .......... 0 1 1 1 .......... 1 0 1 1 ......... 1 1 FRACTIONAL VALUE (FRAC) 0 1 2 3 . . . 4092 4093 4094 4095 PRESCALER RESERVED 12-BIT PHASE VALUE (PHASE) DBR 12-BIT MODULUS VALUE (MOD) DBR CONTROL BITS DB31 DB30 DB29 DB28 DB27 DB26 DB25 DB24 DB23 DB22 DB21 DB20 DB19 DB18 DB17 DB16 DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 0 0 0 0 PR1 P12 P11 P10 P9 P8 P7 P6 P5 P4 P3 P2 P1 M12 M11 M10 M9 M8 M7 M6 M5 M4 M3 M2 M1 C3(0) C2(0) C1(1) P1 PRESCALER 0 4/5 1 8/9 P12 P11 .......... P2 P1 0 0 .......... 0 0 0 0 .......... 0 1 0 0 .......... 1 0 0 0 .......... 1 1 . . .......... . . . . .......... . . . . .......... . . 1 1 .......... 0 0 1 1 .......... 0 1 1 1 .......... 1 0 1 1 .......... 1 1 PHASE VALUE (PHASE) 0 1 (RECOMMENDED) 2 3 . . . 4092 4093 4094 4095 M12 M11 .......... M2 M1 INTERPOLATOR MODULUS (MOD) 0 0 .......... 1 02 0 0 .......... 1 13 . . .......... . . . . . .......... . . . . . .......... . . . 1 1 .......... 0 0 4092 1 1 .......... 0 1 4093 1 1 .......... 1 0 4094 1 1 .......... 1 1 4095 ཮25. स٪ഗ1 (R1) 07325-013 Rev. 0 | Page 15 of 28 ADF4350 本页已使用福昕阅读器进行编辑。 福昕软件(C)2005-2010,版权所有, 仅供试用。 RESERVED REFERENCE DOUBLER DBR RDIV2 DBR DOUBLE BUFF LDF LDP PD POLARITY POWER-DOWN CP THREESTATE COUNTER RESET RF分频器 LOW NOISE AND LOW SPUR MODES MUXOUT 10-BIT R COUNTER DBR CHARGE PUMP CURRENT SETTING CONTROL BITS DB31 DB30 DB29 DB28 DB27 DB26 DB25 DB24 DB23 DB22 DB21 DB20 DB19 DB18 DB17 DB16 DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 0 1 1111 1 1 0 0 0 0 L2 L1 M3 M2 M1 RD2 RD1 R10 R9 R8 R7 R6 R5 R4 R3 R2 R1 D1 CP4 CP3 CP2 CP1 U6 U5 U4 U3 U2 U1 C3(0) C2(1) C1(0) L1 L2 NOISE MODE 0 0 LOW NOISE MODE 0 1 RESERVED 1 0 RESERVED 1 1 LOW SPUR MODE 2倍频器 RD2 REFERENCE DOUBLER 0 DISABLED 1 ENABLED RD1 REFERENCE DIVIDE BY 2 0 DISABLED 1 ENABLED R10 R9 0 0 0 0 . . . . . . 1 1 1 1 1 1 1 1 .......... R2 R1 R DIVIDER (R) .......... 0 .......... 1 .......... . .......... . .......... . .......... 0 .......... 0 .......... 1 .......... 1 11 02 .. .. .. 0 1020 1 1021 0 1022 1 1023 M3 M2 M1 OUTPUT 0 0 0 THREE-STATE OUTPUT 0 0 1 DVDD 0 1 0 DGND 0 1 1 R DIVIDER OUTPUT 1 0 0 N DIVIDER OUTPUT 1 0 1 ANALOG LOCK DETECT 1 1 0 DIGITAL LOCK DETECT 1 1 1 RESERVED D1 DOUBLEBUFFER R4 DB22-20 0 DISABLED 1 ENABLED CP4 CP3 CP2 CP1 0 0 0 0 0 0 0 1 0 0 1 0 0 0 1 1 0 1 0 0 0 1 0 1 0 1 1 0 0 1 1 1 1 0 0 0 1 0 0 1 1 0 1 0 1 0 1 1 1 1 0 0 1 1 0 1 1 1 1 0 1 1 1 1 ཮26. स٪ഗ2 (R2) U6 LDF 0 FRAC-N 1 INT-N ICP (mA) 5.1k 0.31 0.63 0.94 1.25 1.56 1.88 2.19 2.50 2.81 3.13 3.44 3.75 4.06 4.38 4.69 5.00 U5 LDP 0 10ns 1 6ns U4 PD POLARITY 0 NEGATIVE 1 POSITIVE U1 COUNTER RESET 0 DISABLED 1 ENABLED U2 CP THREE-STATE 0 DISABLED 1 ENABLED U3 POWER DOWN 0 DISABLED 1 ENABLED 07325-014 RESERVED CSR RESERVED RESERVED CLK DIV MODE 12-BIT CLOCK DIVIDER VALUE CONTROL BITS DB31 DB30 DB29 DB28 DB27 DB26 DB25 DB24 DB23 DB22 DB21 DB20 DB19 DB18 DB17 DB16 DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 0 0 0 0 0 0 0 0 0 0 0 0 0 0F1 0 C2 C1 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 C3(0) C2(1) C1(1) F1 CYCLE SLIP REDUCTION 0 DISABLED 1 ENABLED C2 C1 CLOCK DIVIDER MODE 0 0 CLOCK DIVIDER OFF 0 1 FAST-LOCK ENABLE 1 0 RESYNC ENABLE 1 1 RESERVED ཮27. स٪ഗ3 (R3) D12 D11 .......... D2 D1 0 0 .......... 0 0 0 0 .......... 0 1 0 0 .......... 1 0 0 0 .......... 1 1 . . .......... . . . . .......... . . . . .......... . . 1 1 .......... 0 0 1 1 .......... 0 1 1 1 .......... 1 0 1 1 .......... 1 1 CLOCK DIVIDER VALUE 0 1 2 3 . . . 4092 4093 4094 4095 07325-015 Rev. 0 | Page 16 of 28 本页已使用福昕阅读器进行编辑。 福昕软件(C)2005-2010,版权所有, 仅供试用。  ADF4350 FEEDBACK SELECT VCO POWERDOWN MTLD AUX OUTPUT SELECT AUX OUTPUT ENABLE RF OUTPUT ENABLE RESERVED DIVIDER SELECT DBB 8-BIT BAND SELECT CLOCK DIVIDER VALUE AUX OUTPUT POWER OUTPUT POWER CONTROL BITS DB31 DB30 DB29 DB28 DB27 DB26 DB25 DB24 DB23 DB22 DB21 DB20 DB19 DB18 DB17 DB16 DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 0 0 0 0 0 0 0 0 D13 D12 D11 D10 BS8 BS7 BS6 BS5 BS4 BS3 BS2 BS1 D9 D8 1 D7 D6 D5 D4 D3 D2 D1 C3(1) C2(0) C1(0) D13 FEEDBACK SELECT 0 DIVIDED 1 FUNDAMENTAL VCO D9 POWER-DOWN 0 VCO POWERED UP 1 VCO POWERED DOWN D12 D11 0 0 0 0 0 1 0 1 1 0 D10 RF DIVIDER SELECT 0 ÷1 1 ÷2 0 ÷4 1 ÷8 0 ÷16 BS8 BS7 .......... BS2 BS1 BAND SELECT CLOCK DIVIDER (R) 0 0 .......... 0 11 0 0 .......... 1 02 . . .......... . .. . . .......... . .. . . .......... . .. 1 1 .......... 0 0 252 1 1 .......... 0 1 253 1 1 .......... 1 0 254 1 1 .......... 1 1 255 MUTE TILL D8 LOCK DETECT 0 MUTE DISABLED 1 MUTE ENABLED AUX OUTPUT D7 SELECT 0 DIVIDED OUTPUT 1 FUNDAMENTAL D6 AUX OUT 0 DISABLED 1 ENABLED ཮28. स٪ഗ4 (R4) D2 D1 OUTPUT POWER 0 0 -4 0 1 -1 1 0 +2 1 1 +5 D3 RF OUT 0 DISABLED 1 ENABLED D5 D4 AUX OUTPUT POWER 0 0 -4 0 1 -1 1 0 +2 1 1 +5 07325-016 RESERVED RESERVED LD PIN MODE RESERVED RESERVED CONTROL BITS DB31 DB30 DB29 DB28 DB27 DB26 DB25 DB24 DB23 DB22 DB21 DB20 DB19 DB18 DB17 DB16 DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 0 0 0 0 0 0 0 0 D15 D14 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 C3(1) C2(0) C1(1) D1 5 D1 4 LOCK DETECT PIN OPERATION 0 0 LOW 0 1 DIGITAL LOCK DETECT 1 0 LOW 1 1 HIGH ཮29. स٪ഗ5 (R5) 07325-017 Rev. 0 | Page 17 of 28 ADF4350 स٪ഗ0 ੦዆࿋! ‫ړ‬࿋[C3:C1]ยዃྺ0Ă0Ă0้Lj੗‫ܔ‬स٪ഗ0৊ႜՊ‫ײ‬ă཮ 24၂๖‫ُܔ‬स٪ഗ৊ႜՊ‫ڦײ‬๼෇ຕ਍߭๕ă 16࿋INTኵ ኄ16࿋ยዃINTኵLj໲ਦۨ‫ݒ‬ઍ‫ݴ‬ೕဣຕ‫ڦ‬ኝຕև‫ݴ‬Ljᆩ ᇀࠅ๕1)֖९“INTĂFRACĂMODᇑR‫ݴ‬ೕഗ‫࠲ڦ‬ဣ”և ‫*ݴ‬ă‫ܔ‬ᇀ4/5ᇨ‫ݴ‬ೕഗLj੗ᅜยዃٗ23‫ڟ‬65,535‫ڦ‬໯ᆶኝຕ ኵă‫ܔ‬ᇀ8/9ᇨ‫ݴ‬ೕഗLjፌၭኝຕኵྺ75ă 12࿋FRACኵ 12߲FRAC࿋ยዃΣ-Δۙ዆ഗၭຕ๼෇‫ݴڦ‬ጱă໲ᇑINTᅃ ഐኸۨೕ୲ࢇ‫ׯ‬ഗ໯໮ۨ‫ڦ‬ႎೕ୲ཚ‫ڢ‬Lj֖९“RFೕ୲ࢇ ‫ׯ‬ഗǖᅃ߲‫ݔࠀׯ‬૩”և‫ݴ‬ăFRACኵ‫ྷݔڦ‬๟ٗ0‫ڟ‬MOD − 1Lj໯ࡥ߃‫ڦ‬ཚ‫ڢ‬ೕ୲‫ྷݔ‬ᇑPFDएጚೕ୲၎ཞă स٪ഗ1 ੦዆࿋! ‫ړ‬࿋[C3:C1]ยዃྺ0Ă0Ă1้Lj੗‫ܔ‬स٪ഗ1৊ႜՊ‫ײ‬ă཮ 25၂๖‫ُܔ‬स٪ഗ৊ႜՊ‫ڦײ‬๼෇ຕ਍߭๕ă ᇨ‫ݴ‬ೕഗኵ! ມఇᇨ‫ݴ‬ೕഗ(P/P + 1)ᇑINTĂFRACࢅMOD‫ݴ‬ೕഗᅃഐLj ਦۨٗVCO๼‫ڟ؜‬PFD๼෇‫ڦ‬ኝ༹‫ݴ‬ೕԲă ᇨ‫ݴ‬ೕഗ߾ፕሞCML‫ۉ‬ೝLjٗVCO๼‫؜‬इ‫้ڥ‬ዓLjժኍ‫ܔ‬ ‫ݴ‬ೕഗ৊ႜ‫ݴ‬ೕă໲एᇀཞօ4/5ాࢃă‫ړ‬ยዃྺ4/5้Lj ඹႹ‫ڦ‬ፌ‫ٷ‬RFೕ୲ྺ3 GHzăᅺُLj‫ړ‬ADF4350‫߾ڦ‬ፕೕ ୲‫ࡗג‬3 GHz้LjՂႷॽഄยዃྺ8/9ăᇨ‫ݴ‬ೕഗࣷ၌዆INT ኵLj‫ړ‬Pྺ4/5้LjNMINྺ23Ǘ‫ړ‬Pྺ8/9้LjNMINྺ75ă ADF4350ዐLjस٪ഗ1ዐ‫ڦ‬PR1ยዃᇨ‫ݴ‬ೕഗኵă 12࿋၎࿋ኵ ኄၵ࿋੦዆໯ेሜ‫ڦ‬၎࿋ጴă޿ጴՂႷၭᇀस٪ഗ1ዐย ዃ‫ڦ‬MODኵă޿ጴᆩઠยዃRF๼‫؜‬၎࿋Ljٗ0°‫ڟ‬360°Lj‫ݴ‬ Ր୲ྺ360°/MODăၘ൧९“၎࿋ምཞօ”և‫ݴ‬ă‫ܠ‬ຕᆌᆩ ዐLjRF႑ࡽᇑ֖੊႑ࡽኮक़‫ڦ‬၎࿋࠲ဣփ๟࢔ዘᄲă‫ܔ‬ᇀ ኄၵᆌᆩLj၎࿋ኵ੗ᆩઠᆫࣅၭຕࢅْ‫ݴ‬ၭຕሗො຤ೝă ߸‫ܠ‬႑တ९“ሗොᅃዂႠࢅၭຕሗොᆫࣅ”և‫ݴ‬ă 本页已使用福昕阅读器进行编辑。 福昕软件(C)2005-2010,版权所有, 仅供试用。 සࡕ၎࿋ምཞօࢅሗොᆫࣅࠀీ਩փ๑ᆩLjॺᅱॽ၎࿋ጴ ยዃྺ1ă 12࿋֭ኵഗMODኵ ُ੗Պ‫ײ‬स٪ഗยዃၭຕఇຕLjनPFDೕ୲ᇑRF๼‫܋؜‬ཚ ‫ڢ‬օ৊‫ݴ‬Ր୲‫ڦ‬Բኵăၘ൧९“RFೕ୲ࢇ‫ׯ‬ഗǖᅃ߲‫ࠀׯ‬ ‫ݔ‬૩”և‫ݴ‬ă स٪ഗ2 ੦዆࿋! ‫ړ‬࿋[C3:C1]ยዃྺ0Ă1Ă0้Lj੗‫ܔ‬स٪ഗ2৊ႜՊ‫ײ‬ă཮ 26၂๖‫ُܔ‬स٪ഗ৊ႜՊ‫ڦײ‬๼෇ຕ਍߭๕ă ‫گ‬ሯำࢅ‫گ‬ሗොఇ๕! ADF4350‫ڦ‬ሯำఇ๕ᆯस٪ഗ2ዐ‫ڦ‬DB30ࢅDB29੦዆)֖९ ཮26*ăሯำఇ๕ሎႹᆩࢽᆫࣅยऺLjᅜ߀฀ሗොႠీई၎ ࿋ሯำႠీă 在工作在小数分频器时 ჋ስፌ‫گ‬ሗොยዃॽ๑ీඡ‫ۯ‬ăኄॽ๑ၭຕଉࣅሯำໜऐ ࣅLj๑ഄૌຼᇀӣ෥ሯำLjܸփ๟ሗොሯำăᅺُLjഗॲ ‫ڦ‬ሗොႠీՍ‫ڥ‬ᅜ߀฀ă‫ܔ‬ᇀPLLԿ࣍‫੻ټ‬ড੻‫੺ڦ‬໏໮ ۨᆌᆩLjᅃӯ๑ᆩُ֡ፕă੻࣍ୟ‫੻ټ‬๟ኸ‫ٷ‬ᇀRFOUTཚ‫ڢ‬ օ৊‫ݴ‬Ր୲(fRES) 1/10‫࣍ڦ‬ୟ‫੻ټ‬ă੻࣍ୟ୳հഗ࿮݆ॽሗ ොປ३‫ڟ‬ᇑ቏࣍ୟ‫੻ټ‬၎ཞ‫ڦ‬຤ೝă ྺइ‫ڥ‬ፌॅሯำႠీLj੗ᅜ๑ᆩፌ‫گ‬ሯำยዃ჋ၜăُย ዃփৈ্ࣷᆩඡ‫ۯ‬Ljܸ൐ࣷඓԍ‫ࢁۉ‬ԭ߾ፕሞ๑ሯำႠీ ፌॅ‫ڦ‬൶ᇘă‫࣍ړ‬ୟ୳հഗ‫੻ټ‬ড቏้Ljُยዃ‫׉ݥ‬ᆶ ᆩăೕ୲ࢇ‫ׯ‬ഗࣷඓԍሯำट‫گ‬Lj୳հഗሶࣷປ३ሗොă ཚࡗ‫ۆ‬႙߾ፕ༬ႠLjᆩࢽ੗ᅜକ঴‫ۆ‬႙W-CDMAยዃዐփ ཞሯำࢅሗොยዃ‫ڦ‬ၳࡕă MUXOUT ೌా‫ܠ‬ୟްᆩഗᆯ࿋[DB28:DB26]੦዆)֖९཮26*ă ֖੊Ԡೕഗ! ‫ ړ‬DB25ย ዃ ྺ 0้ Lj Ԡ ೕ ഗ ্ ᆩ Lj REFIN႑ ࡽ ኱ থ থ ෇ 10-bit‫ڦ‬R‫ݴ‬ೕഗă‫ُړ‬࿋ยዃྺ1้LjREFINೕ୲ेԠLj඗ ࢫথ෇10-bit‫ڦ‬R‫ݴ‬ೕഗăԠೕഗ্ᆩ้LjREFINူইᄂ๟ၭ ຕೕ୲ࢇ‫ׯ‬ഗ‫ڦ‬PFD๼෇‫ڦ܋‬ᆶၳᄂăԠೕഗ๑ీ้Lj REFIN‫ڦ‬ฉืᄂࢅူইᄂ਩๟PFD๼෇‫ڦ܋‬ᆶၳᄂă Rev. 0 | Page 18 of 28  ‫ړ‬๑ీԠೕഗ൐჋ስፌ‫گ‬ሗොఇ๕้Lj‫ాټ‬၎࿋ሯำႠీ ‫ܔ‬REFIN቞੣Բ௺ߌă‫ܔ‬ᇀ45%዁55%‫ྷݔ‬ኮྔ‫ڦ‬REFIN቞੣ ԲLj၎࿋ሯำႠీူই੗ీ‫ٳܠ‬5 dBăሞፌ‫گ‬ሯำఇ๕ူLj ժ൐Ԡೕഗ্ᆩ้Lj၎࿋ሯำႠీ‫ܔ‬REFIN቞੣Բփ௺ ߌă Ԡೕഗ๑ీ้Ljፌ‫ٷ‬ඹႹREFINೕ୲ྺ30 MHză RDIV2 ‫ړ‬DB24ยዃྺ1้LjR‫ݴ‬ೕഗᇑPFDኮक़ॽ֭෇ᅃ߲ܾ‫ݴ‬ೕ ‫݀ة‬ഗLjᅜક‫ٷ‬REFINፌ‫ٷ‬๼෇໏୲ăُࠀీ๑‫ڥ‬PFD๼෇ ‫܋‬႑ࡽ቞੣Բྺ50%Ljኄ‫ܔ‬ᇀ३ณዜཌ๟Ղᄲ‫ڦ‬ă 10࿋R‫ݴ‬ೕഗ ૧ᆩ10࿋R‫ݴ‬ೕഗLj੗ᅜဦ‫ݴ‬๼෇एጚೕ୲(REFIN)ᅜׂิ PFD‫ڦ‬एጚ้ዓă‫ݴ‬ೕԲ੗ᅜྺ1዁1023ă ມ࣐؋ഗ! DB13๑ీई্ᆩ‫ܔ‬स٪ഗ4ዐ‫ڦ‬࿋[DB22:DB20]‫ڦ‬ມ࣐؋ă “‫ݴ‬ೕഗ჋ስ”և‫ݴ‬ຫ௽କມ࣐؋‫߾ڦ‬ፕᇱ૙ă ‫ࢁۉ‬ԭ‫ୁۉ‬ยዃ! ࿋[DB12:DB09]ᆩᇀยዃ‫ࢁۉ‬ԭ‫ୁۉڦ‬ăᆌॽ‫ࢁۉ‬ԭ‫ୁۉ‬ ยዃྺ࣍ୟ୳հഗ‫ڦ‬ยऺ‫֖(ୁۉ‬९཮26)ă LDF ‫ړ‬DB8ยዃྺ1൐‫ݴ‬ೕഗ‫ڦ‬FRACև‫ྺݴ‬0้LjኝຕN‫ݴ‬ೕຕ ጴ໮ۨॠ֪๑ీă‫ړ‬DB8ยዃྺ0้LjၭຕN‫ݴ‬ೕຕጴ໮ۨ ॠ֪๑ీă ໮ۨॠ֪৛‫(܈‬LDP) සࡕDB7ยዃྺ0LjሶՂႷঢ়ࡗ40߲૶Ⴤ‫ڦ‬10 ns PFDዜ೺ ࢫLj֍ీยዃຕጴ໮ۨॠ֪ăසࡕُ࿋ยዃྺ1LjሶՂႷ ঢ়ࡗ40߲૶Ⴤ‫ڦ‬6 ns֖੊ዜ೺ࢫLj֍ీยዃຕጴ໮ۨॠ֪ă ኄ๟ኸၭຕN‫ݴ‬ೕຕጴ໮ۨॠ֪(DB8ยዃྺ0)ă‫ړ‬ኝຕN ‫ݴ‬ೕຕጴ໮ۨॠ֪घऄ้)DB8ยዃྺ1*LjසࡕDB7ยዃྺ 0LjሶႴᄲঢ়ࡗ5߲૶Ⴤ‫ڦ‬6 nsዜ೺ࢫLj֍ీยዃຕጴ໮ۨ ॠ֪ăසࡕDB7ยዃྺ1LjሶႴᄲঢ়ࡗ5߲૶Ⴤ‫ڦ‬10 nsዜ೺ă 本页已使用福昕阅读器进行编辑。 福昕软件(C)2005-2010,版权所有, 仅供试用。 ADF4350 ६၎ഗटႠ! DB6ยዃ६၎ഗटႠăසࡕ๑ᆩ࿮ᇸ࣍ୟ୳հഗईཞ၎ᆶ ᇸ࣍ୟ୳հഗLjሶᆌॽഄยዃྺ1ăසࡕ๑ᆩ‫ݒ‬၎ᆶᇸ୳ հഗLjሶᆌॽഄยዃྺ0ă ࠲܏! DB5༵ࠃ੗Պ‫܏࠲ײ‬ఇ๕ă‫ُړ‬࿋ยዃྺ1้Ljኴႜ࠲܏‫ײ‬ Ⴞă‫ُړ‬࿋ยዃྺ0้Ljೕ୲ࢇ‫ׯ‬ഗ࣬ްኟ‫߾׉‬ፕăሞ෉ ॲ࠲܏ఇ๕ူLjഗॲࣷԍାस٪ഗዐ‫ڦ‬໯ᆶ႑တăኻᆶ‫ړ‬ ൎ܏‫ۉ‬ᇸ้Ljस٪ഗాඹ֍۪ࣷ฿ă घऄ࠲܏้Ljॽ݀ิူଚ๚ॲǖ t ഽ዆ೕ୲ࢇ‫ׯ‬ഗ‫ݴڦ‬ೕഗ৊෇ेሜጒༀă t 7$0࠲܏ă t ഽ዆‫ࢁۉ‬ԭ৊෇ෙༀఇ๕ă t ຕጴ໮ۨॠ֪‫ۉ‬ୟް࿋ă t 3'065࣐؋ഗ্ᆩă t ๼෇स٪ഗԍ‫׼‬ऄ‫ۯ‬ጒༀLjీࠕेሜժ໮٪ຕ਍ă ‫ࢁۉ‬ԭෙༀ! DB4ยዃྺ1้Lj‫ࢁۉ‬ԭ৊෇ෙༀఇ๕ăኟ‫߾׉‬ፕ้Ljُ࿋ ᆌยዃྺ0ă ‫ݴ‬ೕഗް࿋! DB3๟ADF4350‫ڦ‬R‫ݴ‬ೕഗࢅN‫ݴ‬ೕഗresest࿋ă‫ُړ‬࿋ྺ1 ้LjRFೕ୲ࢇ‫ׯ‬ഗN‫ݴ‬ೕഗࢅR‫ݴ‬ೕഗ‫ت‬ᇀް࿋ጒༀăኟ ‫߾׉‬ፕ้Ljُ࿋ᆌยዃྺ0ă Rev. 0 | Page 19 of 28 ADF4350 स٪ഗ3 ੦዆࿋! ‫ړ‬࿋[C3:C1]ยዃྺ0Ă1Ă1้Lj੗‫ܔ‬स٪ഗ3৊ႜՊ‫ײ‬ă཮ 27၂๖‫ُܔ‬स٪ഗ৊ႜՊ‫ڦײ‬๼෇ຕ਍߭๕ă CSR๑ీ DB18ยዃྺ1ॽ๑ీዜཌ३ณࠀీă૧ᆩُࠀీ੗໫‫܌‬໮ ้ۨक़ă൩ጀᅪLjྺ๑ዜཌ३ณᆶၳLj६ೕ६၎ഗ(PFD) ‫ڦ‬႑ࡽՂႷᆶ50%‫ڦ‬቞੣Բă‫ࢁۉ‬ԭ‫ୁۉ‬ยዃᄺՂႷยዃ ྺፌၭኵă߸‫ܠ‬႑တ९“३ณዜཌᅜ໫‫܌‬໮้ۨक़”և‫ݴ‬ă ้ዓ‫ݴ‬ೕഗఇ๕! ࿋[DB16:DB15]ยዃྺ1Ă0้ॽघऄ၎࿋ምཞօLjยዃྺ 0Ă1้ॽघऄ੺໏໮ۨLjยዃྺ0Ă0้ॽ্ᆩ้ዓ‫ݴ‬ೕ ഗă֖९཮27ă 12࿋้ዓ‫ݴ‬ೕഗኵ 12࿋้ዓ‫ݴ‬ೕഗኵยዃघऄ၎࿋ምཞօ‫ऺ้גڦ‬ຕഗăၘ ൧९“၎࿋ምཞօ”և‫ݴ‬ă໲࣏ยዃ੺໏໮ۨ‫ऺ้גڦ‬ຕ ഗăၘ൧९“੺໏໮้ۨۨഗࢅस٪ഗႾଚ”և‫ݴ‬ă स٪ഗ4 ੦዆࿋! ‫ړ‬࿋[C3:C1]ยዃྺ1Ă0Ă0้Lj੗‫ܔ‬स٪ഗ4৊ႜՊ‫ײ‬ă཮ 28၂๖‫ُܔ‬स٪ഗ৊ႜՊ‫ڦײ‬๼෇ຕ਍߭๕ă ‫ݒ‬ઍ჋ስ! DB23჋ስٗVCO๼‫ڟ؜‬N‫ݴ‬ೕഗ‫ݒڦ‬ઍăยዃྺ1้Lj႑ ࡽ኱থٗVCOइ‫ڥ‬ăยዃྺ0้Lj႑ࡽٗ๼‫ݴ؜‬ೕഗ‫ڦ‬๼ ‫؜‬इ‫ڥ‬ăኄၵ‫ݴ‬ೕഗ๑‫ڥ‬๼‫؜‬੗ࡥ߃ড੻‫ڦ‬ೕ୲‫ྷݔ‬ DŽ137.5 MHz዁4.4 GHzDžă‫ݴړ‬ೕഗ๑ీ൐‫ݒ‬ઍ႑ࡽٗഄ ๼‫؜‬इ‫้ڥ‬Ljଇ߲‫܀‬૬ದዃPLL‫ڦ‬RF๼‫؜‬႑ࡽཞ၎ăኄሞ Ⴔᄲ‫ܔ‬႑ࡽ৊ႜኟ߅ภᅜ༵ߛࠀ୲‫ڦ‬ᅃၵᆌᆩዐ࢔ᆶᆩă ‫ݴ‬ೕഗ჋ስ! ࿋[DB22:DB20]჋ስ๼‫ݴ؜‬ೕഗ‫ڦ‬ኵ)֖९཮28*ă ೕ܎჋ስ้ዓ‫ݴ‬ೕഗኵ! ࿋[DB19:DB12]ยዃೕ܎჋ስஇड้ዓ๼෇‫ݴڦ‬ೕഗăR‫ݴ‬ ೕഗ‫ڦ‬๼‫؜‬ఐණᆩፕೕ܎჋ስஇड้ዓLj‫ڍ‬සࡕُኵ໿‫ٷ‬ (>125 kHz)Ljሶ੗ᅜഔᆩᅃ߲‫ݴ‬ೕഗLjᅜॽR‫ݴ‬ೕഗ๼‫؜‬ဦ ‫ྺݴ‬ডၭ‫ڦ‬ኵ)֖९཮28*ă VCO࠲܏ ߵ਍໯჋ስ‫ڦ‬ኵLjDB11๑VCO࠲܏ईฉ‫ۉ‬ă ৢᅼ዁໮ۨॠ֪! සࡕDB10ยዃྺ1Ljሶൎ܏RF๼‫؜‬प‫ۉڦ‬ᇸ‫ୁۉ‬Lj኱‫ڟ‬ຕ ጴ໮ۨॠ֪‫ۉ‬ୟॠ֪‫ڟ‬ഗॲํ၄໮ۨྺኹă ‫ޤ‬ዺ๼‫؜‬჋ስ! DB9ยዃ‫ޤ‬ዺRF๼‫؜‬ă੗ᅜ჋ስRF‫ݴ‬ೕഗ‫ڦ‬๼‫؜‬ईVCOए ೕă ‫ޤ‬ዺ๼‫؜‬๑ీ! ߵ਍໯჋ስ‫ڦ‬ኵLjDB8๑ీई্ᆩ‫ޤ‬ዺRF๼‫؜‬ă ‫ޤ‬ዺ๼‫!୲ࠀ؜‬ ࿋[DB7:DB6]ยዃ‫ޤ‬ዺRF๼‫୲ࠀ؜‬຤ೝ‫ڦ‬ኵ)֖९཮28*ă RF๼‫؜‬๑ీ ߵ਍໯჋ስ‫ڦ‬ኵLjDB5๑ీई্ᆩዷRF๼‫؜‬ă ๼‫!୲ࠀ؜‬ ࿋[DB4:DB3]ยዃዷRF๼‫୲ࠀ؜‬຤ೝ‫ڦ‬ኵ)֖९཮28*ă स٪ഗ5 ੦዆࿋! ‫ړ‬࿋[C3:C1]ยዃྺ1Ă0Ă1้Lj੗‫ܔ‬स٪ഗ5৊ႜՊ‫ײ‬ă཮ 29၂๖‫ُܔ‬स٪ഗ৊ႜՊ‫ڦײ‬๼෇ຕ਍߭๕ă ໮ۨॠ֪ᆅগ߾ፕ‫ݛ‬๕ ࿋[DB23:DB22]ยዃ໮ۨॠ֪ᆅগ‫߾ڦ‬ፕ‫ݛ‬๕)֖९཮29*ă Rev. 0 | Page 20 of 28  ‫؛‬๔ࣅႾଚ! ‫ۉܔ‬ᇸᆅগแेኟඓ‫ۉڦ‬უኮࢫLjADF4350Ӏᅜူ໯๖‫ڦ‬ स٪ഗႾଚྜ‫ׯ‬ฉ‫؛ڦۉ‬๔ࣅࡗ‫ײ‬ă t स٪ഗ5 t स٪ഗ4 t स٪ഗ3 t स٪ഗ2 t स٪ഗ1 t स٪ഗ0 RFೕ୲ࢇ‫ׯ‬ഗǖᅃ߲‫ݔࠀׯ‬૩ ူ௬‫ڦ‬૩ጱ၂๖କසࢆ‫ܔ‬ADF4350ೕ୲ࢇ‫ׯ‬ഗ৊ႜՊ‫ײ‬ǖ RFOUT = [INT + (FRAC/MOD)] × [fPFD]/RF‫ݴ‬ೕഗ (3) ഄዐǖ RFOUT๟RFೕ୲๼‫؜‬Ǘ INT๟ኝຕ‫ݴ‬ೕဣຕǗ FRAC๟ၭຕǗ MOD๟ఇຕǗ“RF‫ݴ‬ೕഗ”๟ဦ‫ݴ‬VCOೕ୲‫ڦ‬๼‫ݴ؜‬ೕഗă fPFD = REFIN × [(1 + D)/(R × (1+T))] (4) ഄዐǖ REFIN๟एጚೕ୲๼෇Ǘ D๟RF REFINԠೕഗ࿋Ǘ T๟एጚ2‫ݴ‬ೕ࿋)0ई1*Ǘ R๟RFएጚ‫ݴ‬ೕဣຕă ૩සLjᅃ߲UMTSဣཥᄲ൱2112.6 MHz RFೕ୲๼‫(؜‬RFOUT)Lj एጚೕ୲๼෇(REFIN)ྺ10 MHzLjժ൐RF๼‫؜‬ᄲ൱200 kHzཚ ‫ݴڢ‬Ր୲(fRESOUT)ă൩ጀᅪLjADF4350߾ፕሞ2.2 GHz዁4.4 GHzೕ୲‫ాྷݔ‬ăᅺُLjᆌ๑ᆩRFܾ‫ݴ‬ೕ)VCOೕ୲ = 4225.2 MHzLjRFOUT = VCOೕ୲/RF‫ݴ‬ೕഗ = 4225.2 MHz/2 = 2112.6 MHz*ă ࣍ୟࢆ‫ت‬Կࢇᄺ࢔ዘᄲăԨ૩ዐLj࣍ୟ๟Կࢇ‫֖)ڦ‬९཮ 30*ă fPFD PFD VCO RFOUT ÷2 N DIVIDER ཮30. ࣍ୟሞ๼‫ݴ؜‬ೕഗኮമԿࢇ 07325-027 本页已使用福昕阅读器进行编辑。 福昕软件(C)2005-2010,版权所有, 仅供试用。 ADF4350 RF‫ݴ‬ೕഗ‫ڦ‬๼‫؜‬ᄲ൱200 kHzཚ‫ݴڢ‬Ր୲(fRESOUT)ăᅺُLj VCO๼ ‫ ڦ ؜‬ཚ ‫ ݴ ڢ‬Ր ୲ (fRES)Ⴔ ྺ fRESOUT‫ ڦ‬ଇ Ԡ Lj न 400 kHză MOD = REFIN/fRES MOD = 10 MHz/400 kHz = 25 ߵ਍ࠅ๕4Lj fPFD = [10 MHz × (1 + 0)/1] = 10 MHz (5) 2112.6 MHz = 10 MHz × (INT + FRAC/25)/2 (6) ഄዐǖ INT = 422 FRAC = 13 ఇຕ! ఇຕ(MOD)‫ڦ‬჋ስൽਦᇀ੗ᆩ‫੊֖ڦ‬႑ࡽ(REFIN)ᅜतRF๼ ‫؜‬໯Ⴔ‫ڦ‬ཚ‫ݴڢ‬Ր୲(fRES)ă૩සLjᅃ߲13 MHz REFIN‫ڦ‬ GSMဣཥॽఇຕยዃྺ65ăኄᅪ࿆ጣLjRF๼‫ݴ؜‬Ր୲(fRES) ྺGSM໯ՂႴ‫ڦ‬200 kHz (13 MHz/65)ăඡ‫࠲ۯ‬Կ้Ljၭຕ ሗොक़߰ൽਦᇀ໯჋ስ‫ڦ‬ఇຕኵ)֖९՗6*ă ֖੊Ԡೕഗࢅ֖੊‫ݴ‬ೕഗ ೌా֖੊Ԡೕഗ੗ᅜ๑๼෇֖੊႑ࡽೕ୲ेԠLjኄ੗ᆩᇀ ༵ߛPFDԲডೕ୲ă༵ߛPFDೕ୲੗߀฀ဣཥ‫ڦ‬ሯำႠ ీăPFDೕ୲ेԠᅃӯ੗๑ሯำႠీ߀฀3 dBăՂႷጀᅪLj ᆯᇀN‫ݴ‬ೕഗ‫ڦ‬Σ-Δ‫ۉ‬ୟ٪ሞ໏‫܈‬၌዆LjPFD‫߾ڦ‬ፕೕ୲փ ీߛᇀ32 MHză ֖੊2‫ݴ‬ೕॽ֖੊႑ࡽ‫أ‬ᅜ2Lj‫ڟڥ‬50%቞੣Բ‫ڦ‬PFDೕ ୲ăኄ๟ዜཌ३ณ(CSR)ࠀీኟ‫߾׉‬ፕ໯ՂႴ‫ڦ‬ă߸‫ܠ‬႑ တ९“३ณዜཌᅜ໫‫܌‬໮้ۨक़”և‫ݴ‬ă 12࿋੗Պ‫ײ‬ఇຕ ᇑഄ໲‫ܠٷ‬ຕၭຕN‫ݴ‬ೕPLLփཞLjADF4350ሎႹᆩࢽሞ12 ࿋‫ాྷݔ‬ยዃఇຕăኄᅪ࿆ጣLj঳ࢇ֖੊Ԡೕഗࢅ10࿋R ‫ݴ‬ೕഗLjᆩࢽ੗ᅜํ၄Ⴙ‫ܠ‬փཞ‫ڦ‬ದዃLjᅜ๢ࢇ߳ዖᆌ ᆩă ૩සLj੊୯ᅃ߲ᄲ൱1.75 GHz RFࢅ200 kHzཚ‫ڢ‬օ৊‫ݴ‬Ր ୲‫ڦ‬ᆌᆩă޿ဣཥਏᆶ13 MHz֖੊႑ࡽă ᅃዖ੗ీ‫ڦ‬ยዃ๟ॽ13 MHz႑ࡽ኱থઍ෇PFDLjժॽఇຕ ยዃྺ‫أ‬ᅜ65Ljኄᄣ৽ీइ‫ڥ‬໯Ⴔ‫ڦ‬200 kHz‫ݴ‬Ր୲ă ଷᅃዖ੗ీ‫ڦ‬ยዃ๟๑ᆩ֖੊ԠೕഗLjٗ13 MHz๼෇႑ࡽ ׂิ26 MHz႑ࡽă඗ࢫLjॽُ26 MHzઍ෇ఇຕยዃྺ130 ‫ڦ‬PFDLjኄᄣᄺీइ‫ڥ‬200 kHz‫ݴ‬Ր୲Ljܸ൐၎࿋ሯำႠీ ᆫᇀമᅃዖยዃă Rev. 0 | Page 21 of 28 ADF4350 ੗Պ‫ײ‬ఇຕ‫ܔ‬ᇀ‫ܠ‬Քጚᆌᆩᄺ‫׉ݥ‬ᆶᆩăසࡕມఇ‫ࣆۉ‬ᄲ ൱ኧ‫׼‬PDCࢅGSM 1800ଇዖՔጚLjሶ੗Պ‫ײ‬ఇຕ‫׉ݥ‬ᆶ ૧ăPDCᄲ൱25 kHzཚ‫ڢ‬օ৊‫ݴ‬Ր୲LjGSM 1800ሶᄲ൱ 200 kHzཚ‫ڢ‬ยዃ‫ݴ‬Ր୲ă ੗ᅜॽ13 MHz֖੊႑ࡽ኱থઍ෇PFDLjሞPDCఇ๕ူLjఇ ຕยዃྺ520 (13 MHz/520 = 25 kHz)ă ሞGSM 1800ఇ๕ူLjሶႴᄲॽఇຕยዃྺ65 (13 MHz/65 = 200 kHz)ă PFDೕ୲ՂႷԍ‫(࢛ۨ׼‬13 MHz)LjᅜՍᆩࢽྺଇዖยዃยऺ ᅃ߲࣍ୟ୳հഗLjܸփࣷ݀ิփ࿘ۨ࿚༶ăՂႷጀᅪLjRF ೕ୲ᇑPFDೕ୲ኮԲᇱሶฉࣷᆖၚ࣍ୟ୳հഗยऺLjܸփ ๟ํा‫ڦ‬ཚ‫ڢ‬क़߰ă ३ณዜཌᅜ໫‫܌‬໮้ۨक़! ස“‫گ‬ሯำࢅ‫گ‬ሗොఇ๕”և‫ݴ‬໯ຎLjADF4350ᆶ‫ܠ‬ዖ༬Ⴀ ੗ᆩઠᆫࣅሯำႠీă‫ڍ‬๟Lj੺໏໮ۨᆌᆩᅃӯᄲ൱੻࣍ ୟ‫੻ټ‬Ljᅺُ୳հഗփీ‫ޗٷ‬ປ३ሗොăසࡕഔᆩዜཌ३ ณ༬ႠLjሶ੗ᅜኍ‫ܔ‬ሗොປ३ԍ‫׼‬቏࣍ୟ‫੻ټ‬Ljཞ้ධీ ํ၄ড੺‫ڦ‬໮้ۨक़ă ዜཌ! ‫࣍ړ‬ୟ‫੻ټ‬ԲPFDೕ୲቏้LjၭຕN‫ݴ‬ೕ/ኝຕN‫ݴ‬ೕೕ୲ ࢇ‫ׯ‬ഗ৽ࣷ݀ิዜཌăPFD๼෇‫ڦ܋‬၎࿋ဃֶओેࡗ੺Lj PLLઠփतၯኟLj‫ࢁۉ‬ԭሡ้ᄂ‫ٱ‬ဃ‫ݛ‬ၠဌ෇‫ࢁۉ‬Ljኄ৽ ࣷ‫ޗٷ‬ჽ࣐໮้ۨक़ăADF4350Ԉࡤዜཌ३ณ༬ႠLj੗ક ቛPFD‫ڦ‬၍Ⴀ‫ྷݔ‬Ljܸٗे੺໮ۨLjܸ࿮Ⴔ߸߀࣍ୟ୳հ ഗ‫ۉ‬ୟă ‫ۉړ‬ୟॠ֪‫ॽڟ‬ᄲ݀ิዜཌ้Lj৽ࣷഔ‫ࢁۉڦྔܮۯ‬ԭ‫ۉ‬ ୁ‫ڇ‬ᇮă໲ॽၠ࣍ୟ୳հഗ๼‫ୁۉڦ࢛ۨ؜‬Ljईኁٗ࣍ୟ ୳հഗᅎ‫)ୁۉڦ࢛ۨأ‬ൽਦᇀ๟ᄲ༵ߛ࣏๟ই‫گ‬VCOۙ ၿ‫ۉ‬უLjᅜՍ‫ڟڥ‬ႎ‫ڦ‬ೕ୲*ăഄ঳ࡕ๟LjPFD‫ڦ‬၍Ⴀ‫ྷݔ‬ ‫ڥ‬ᅜકቛă࣍ୟධ඗ԍ‫׼‬࿘ۨLjᅺྺ޿‫࢛ۨୁۉ‬൐փ๟ஞ ؋‫ୁۉ‬ă සࡕ၎࿋ဃֶምْሺ‫ڟٷ‬੗ీᆼᄲ݀ิዜཌLjADF4350ॽ ምഔ‫ۯ‬ᅃ߲‫ࢁۉ‬ԭ‫ڇ‬ᇮăኄᅃࡗ‫׼ॽײ‬ჄူඁLj኱዁ ADF4350ॠ֪‫ڟ‬VCOೕ୲ᅙ‫ࡗג‬໯Ⴔ‫ڦ‬ೕ୲ă‫ࢁۉڦྔܮ‬ ԭ‫ڇ‬ᇮደ߲࠲ԿLj኱዁໯ᆶ‫ࢁۉྔܮ‬ԭ‫ڇ‬ᇮ‫ۼ‬ᅙ্ᆩLjժ ൐ೕ୲ሞ‫؛‬๔࣍ୟ୳հഗ‫ڟٳူ੻ټ‬࿘ۨă ፌ‫ܠ‬੗ᅜഔ‫ۯ‬7߲‫ࢁۉྔܮ‬ԭ‫ڇ‬ᇮă‫ܠٷ‬ຕᆌᆩዐLjኄፁ ᅜ‫ڹן‬ၩ‫أ‬ዜཌLjܸٗ‫ޗٷ‬໫‫܌‬໮้ۨक़ă 本页已使用福昕阅读器进行编辑。 福昕软件(C)2005-2010,版权所有, 仅供试用。 ॽस٪ഗ3ዐ‫ڦ‬DB18࿋ยዃྺ1੗๑ీዜཌ३ณă൩ጀᅪLj ྺ๑ዜཌ३ณ(CSR)ኟ‫߾׉‬ፕLjPFDᄲ൱45%዁55%‫ڦ‬቞੣ ԲăසࡕREFINೕ୲ுᆶࢇ๢‫ڦ‬቞੣ԲLjRDIV2ఇ๕੗ඓ ԍPFD‫ڦ‬๼෇ਏᆶ50%቞੣Բă ሗොᆫࣅࢅ੺໏໮ۨ! ቏࣍ୟ‫੻ټ‬੗ᅜ୳‫أ‬փႴᄲ‫ڦ‬ሗො႑ࡽLj‫ڍ‬໮้ۨक़ᅃӯ ড‫׊‬ăড੻‫࣍ڦ‬ୟ‫੻ټ‬੗ᅜํ၄ড੺‫ڦ‬໮้ۨक़Lj‫࣍ڍ‬ୟ ‫ڦా੻ټ‬ሗො႑ࡽ੗ీࣷሺेă ੺໏໮ۨ༬Ⴀփৈ੗ᅜํ၄ᇑড੻‫੻ټ‬ᅃᄣ‫੺ڦ‬໏໮้ۨ क़Ljܸ൐ਏᆶড቏ፌዕ࣍ୟ‫ڦ੻ټ‬ᆫ๞Lj੗ᅜԍ‫گ׼‬ሗ ොă ੺໏໮้ۨۨഗࢅस٪ഗႾଚ! සࡕ๑ᆩ੺໏໮ۨఇ๕LjႴᄲॽᅃ߲ऺ้ഗኵሜ෇PLLLj ᅜඓۨ੻‫੻ټ‬ఇ๕‫׼ڦ‬Ⴤ้क़ă ‫ړ‬࿋स٪ഗ3ዐ‫ڦ‬࿋[DB16:DB15]ยዃྺ0Ă1)੺໏໮ۨ๑ ీ*้Lj޿ऺ้ഗኵᆯ12࿋้ዓ‫ݴ‬ೕഗኵेሜăᄲ๑ᆩ੺໏ ໮ۨLjՂႷยዃᅜူႾଚǖ 1. ഗॲฉ‫ࢫۉ‬Lj‫؛‬๔ࣅႾଚ)֖९“‫؛‬๔ࣅႾଚ”և! ! ‫*ݴ‬ৈ݀ิᅃْă 2. ेሜस٪ഗ3Ljॽ࿋[DB16:DB15]ยዃྺ0Ă1Ljժย! ! ዃ໯჋‫੺ڦ‬໏໮้ۨक़ኵ[DB14:DB3]ă൩ጀᅪLj! ! PLLԍ‫੻ټ੻׼‬ఇ๕‫׼ڦ‬Ⴤ้क़‫ڪ‬ᇀ੺໏໮้ۨक़‫!أ‬ ! ᅜfPFDă ੺໏໮ۨ๖૩! සࡕPLLਏᆶ13 MHz‫ڦ‬एጚೕ୲LjfPFD = 13 MHzLjժ൐ᄲ൱‫ڦ‬ ໮้ۨक़ྺ50 μsLjሶॽPLL‫׼੻ټ੻ڦ‬Ⴤ้क़ยዃྺ40 μsă Ԩ૩्ยఇຕྺ65Ljᅜํ၄200 kHz‫ڦ‬ཚ‫ڢ‬क़߰ă සࡕ੻‫׼੻ټ‬Ⴤ้क़ยዃྺ40 μsLjఫ஺ǖ ੺໏໮้ۨۨഗኵ = ੻‫׼੻ټ‬Ⴤ้क़ × fPFD/MOD ੺໏໮้ۨۨഗኵ = 40 μs × 13 MHz/65 = 8 ᅺُLjሞ“੺໏໮ۨऺ้ഗࢅस٪ഗႾଚ”և‫ݴ‬໯ຎႾଚ‫ڦ‬ ‫ڼ‬ᅃօዐLjՂႷॽኵ8ሜ෇स٪ഗ3ዐ‫้ڦ‬ዓ‫ݴ‬ೕഗኵă Rev. 0 | Page 22 of 28  ੺໏໮ۨǖ࣍ୟ୳հഗྊ೫ ๑ᆩ੺໏໮ۨఇ๕้Lj࣍ୟ୳հഗዐ‫ڦ‬ፆ౅‫ۉ‬ፆই዁੻‫ټ‬ ੻ఇ๕ူ޿‫ۉ‬ፆኵ‫¼ڦ‬ăྺํ၄ড੻‫࣍ڦ‬ୟ୳հഗ‫੻ټ‬Lj ‫ࢁۉ‬ԭ‫ୁۉ‬ሺ‫ٷ‬16ԠLjܸྺକԍ‫࣍׼‬ୟ࿘ۨLjፆ౅‫ۉ‬ፆՂ Ⴗ ३ ၭ ¼ă ᄲ ๑ ీ ੺ ໏ ໮ ۨ Lj Ⴔ ॽ स ٪ ഗ 3ዐ ‫ ڦ‬࿋ [DB16:DB15]ยዃྺ0Ă1Lj๑SWᆅগ‫ܔ‬GNDᆅগ‫܌‬ୟă੗ ᆩ‫ڦ‬ྊ೫঳ࠓᆶଇዖǖ t ፆ౅‫ۉ‬ፆ(R1)‫ྺݴ‬ଇ߲ኵDŽR1ࢅR1ADžLjܾኁኮԲྺ! ! 1:3)֖९཮31*ă t ኱থٗSW૶ᅃ߲‫ۉྔܮ‬ፆ(R1A)Ljස཮32໯๖ă޿‫!ܮ‬ ! ྔ‫ۉ‬ፆᇑፆ౅‫ۉ‬ፆ(R1)‫ڦ‬ժ૴঳ࡕᆌྺR1‫؛‬๔ኵ‫¼ڦ‬ )֖९཮32*ă ADF4350 CP C1 SW R2 C2 R1 VCO C3 R1A 07325-018 ཮42/!੺໏໮ۨ࣍ୟ୳հഗྊ೫Ċྊ೫2 ADF4350 CP C1 R2 C2 VCO C3 R1A R1 SW 07325-019 ཮43/!੺໏໮ۨ࣍ୟ୳հഗྊ೫Ċྊ೫3 ሗොऐ዆ Ԩবຫ௽ၭຕN‫ݴ‬ೕೕ୲ࢇ‫ׯ‬ഗ‫ڦ‬ෙዖփཞሗොऐ዆Ljᅜ तසࢆই‫گ‬ADF4350‫ڦ‬ሗොă ****** ၭຕሗො ADF4350ዐ‫ڦ‬ၭຕ֭ኵഗ๟ᅃዖෙ঩Σ-Δۙ዆ഗ(SDM)Ljഄ ఇຕ(MOD)੗ยዃྺٗ2‫ڟ‬4095‫ڦ‬ඪࢆኝຕኵăሞ‫گ‬ሗො ఇ๕ူ(๑ీඡ‫)ۯ‬LjMOD‫ڦ‬ፌၭඹႹኵྺ50ăSDM้ዓೕ ୲ྺPFDएጚೕ୲(fPFD)LjሎႹPLL๼‫؜‬ೕ୲ᅜfPFD/MOD‫ڦ‬ ཚ‫ڢ‬օ৊‫ݴ‬Ր୲ࢇ‫ׯ‬ă 本页已使用福昕阅读器进行编辑。 福昕软件(C)2005-2010,版权所有, 仅供试用。 ADF4350 ሞ‫گ‬ሯำఇ๕ူ(্ᆩඡ‫)ۯ‬LjઠጲΣ-Δۙ዆ഗ‫ڦ‬ଉࣅሯำፕ ྺၭຕሗො‫؜‬၄ăሗොኮक़‫ڦ‬क़߰ྺfPFD/LLjഄዐL๟ຕጴ Σ-Δۙ዆ഗዐஓႾଚ‫ڦ‬ዘް‫܈׊‬ă‫ܔ‬ᇀADF4350໯ᆩ‫ڦ‬ෙ ঩ۙ዆ഗLj޿ዘް‫܈׊‬ൽਦᇀMODኵLjස՗6໯ଚă ՗6. ্ᆩඡ‫ڦ้ۯ‬ၭຕሗො ཉॲ)্ᆩඡ‫*ۯ‬ ዘް‫܈׊‬ MODీԥ2ኝ‫أ‬Lj‫ڍ‬փీԥ3ኝ‫ أ‬2 × MOD MODీԥ3ኝ‫أ‬Lj‫ڍ‬փీԥ2ኝ‫ أ‬3 × MOD MODీԥ6ኝ‫أ‬ 6 × MOD ഄ໲൧઄ MOD ሗොक़߰ ཚ‫ڢ‬օ৊/2 ཚ‫ڢ‬օ৊/3 ཚ‫ڢ‬օ৊/6 ཚ‫ڢ‬օ৊ ሞ‫گ‬ሗොఇ๕ူ(๑ీඡ‫)ۯ‬Ljዘް‫܈׊‬કቛ዁221߲ዜ೺Lj ᇑMODኵ࿮࠲Lj๑‫ڥ‬ଉࣅဃֶೕ೷ੂഐઠၟ੻‫ټ‬ሯำă ኄ੗ీࣷ๑PLL๼‫ాټڦ܋؜‬၎࿋ሯำႠీူই‫ٳܠ‬10 dBăྺକइ‫ڥ‬ፌ‫گ‬ሯำLj্ᆩඡ‫ۯ‬๟߸ࡻ‫ڦ‬჋ስLjᆮഄ๟ ‫ړ‬ፌዕ࣍ୟ‫ڟگ੻ټ‬ፁᅜປ३ፌ‫گ‬ೕ୲ၭຕሗො้ă ኝຕՉহሗො 输出 ၭຕሗො‫ڦ‬ଷᅃׂ߲ิऐ዆๟RF VCOೕ୲ᇑएጚೕ୲‫ڦ‬ ঍ࢻፕᆩă‫ړ‬ኄၵೕ୲փ๟ኝຕ࠲ဣ้(ၭຕN‫ݴ‬ೕೕ୲ࢇ ‫ׯ‬ഗ‫)ۅڦ‬LjሗොՉ‫ॽټ‬ᅜᅃۨ‫ڦ‬ೋᅎೕ୲‫؜‬၄ሞVCO๼ ‫؜‬ೕ೷ฉLj޿ೋᅎೕ୲ᇑኝຕԠຕ‫ڦ‬एጚೕ୲ࢅVCOೕ୲ ኮक़‫ڦ‬ಆೕईֶೕ၎‫ܔ‬ᆌăኄၵሗොᆯ࣍ୟ୳հഗᇎᅜປ ३Ljሞ੍ৎएጚೕ୲ኝຕԠຕ‫ڦ‬ཚ‫ڢ‬ฉ՗၄‫ྺ߸ڥ‬௽၂Ǘ ‫ܔ‬ᇀኄၵཚ‫ڢ‬Ljֶೕ୲੗ీ࿋ᇀ࣍ୟ‫੻ټ‬ᅜాLj“ኝຕՉ হሗො”‫ڦ‬ఁ‫׬‬ኟ๟ᆯُܸઠă ֖੊ሗො ሞၭຕN‫ݴ‬ೕೕ୲ࢇ‫ׯ‬ഗዐLj֖੊ሗොᅃӯփ๟࿚༶Ljᅺ ྺ֖੊ೋᅎᇺᇺ‫؜ג‬କ࣍ୟ‫੻ټ‬ăփࡗLjಖୟ࣍ୟ‫ڦ‬ඪࢆ ֖੊ઍཚऐ዆੗ీࣷᆅഐ࿚༶ăঢ়ᆯRFINᆅগ࣮‫ڟ‬VCO‫ڦ‬ ‫ۉگ‬ೝೌా֖੊ൎ࣑ሯำ‫ڦ‬ઍཚLj੗ీׂࣷิߛ‫–ٳ‬90 dBc ‫੊֖ڦ‬ሗොăPCBքਆႴᄲඓԍVCOጽ၍ᇑ๼෇֖੊ኮक़ ؊‫߰ݴ‬૗LjՆ௨‫ۉ‬ୟӱฉ੗ీ‫؜‬၄ઍཚୟ০ă Rev. 0 | Page 23 of 28 ADF4350 ሗොᅃዂႠࢅၭຕሗොᆫࣅ! ඡ‫࠲ۯ‬Կ้LjSDMଉࣅሯำ໯ᆅഐ‫ڦ‬ၭຕሗොஓᄺൽਦᇀ ፕྺۙ዆ഗዖጱኵ‫ڦ‬༬ۨ၎࿋ጴă ੗ᅜ߀Վ၎࿋ጴLjᅜᆫࣅඪࢆ༬ۨೕ୲ฉ‫ڦ‬ၭຕࢅْ‫ݴ‬ၭ ຕሗො຤ೝăᅺُLj੗ᅜࠓॺᅃ߲ᇑ߳ೕ୲၎‫ܔ‬ᆌ‫ڦ‬၎࿋ ኵֱቴ՗LjᅜՍሞ‫ܔ‬ADF4350৊ႜՊ‫้ײ‬๑ᆩă සࡕփ๑ᆩֱቴ՗Ljሶᆌԍ‫׼‬၎࿋ጴփՎLjඓԍඪᅃ༬ۨ ೕ୲ฉ‫ڦ‬ሗො຤ೝԍ‫׼‬ᅃዂă ၎࿋ምཞօ! ‫ړ‬MODྺၭຕఇຕ้LjၭຕN‫ݴ‬ೕPLL‫ڦ‬๼‫؜‬੗ᅜॺ૬዁ ၎‫ܔ‬ᇀ๼෇֖੊‫ڦ‬ඪࢆᅃ߲MOD၎࿋ೋᅎăADF4350‫ڦ‬၎ ࿋ምཞօ༬Ⴀ੗ׂิ၎‫ܔ‬ᇀ๼෇֖੊‫ڦ‬ᅃዂ๼‫؜‬၎࿋ೋ ᅎLj‫ܔ‬ᇀ๼‫؜‬၎࿋ࢅೕ୲ๆ‫ݴ‬ዘᄲ‫ڦ‬ᆌᆩLjසຕጴհຐႚ ‫ڪׯ‬Ljኄ๟ՂႴ‫ڦ‬ă๑ᆩ၎࿋ምཞօ้Lj༬ۨRF๼‫؜‬၎࿋ Պ‫ײ‬൩֖९“၎࿋Պ‫”ײ‬և‫ݴ‬ă ॽस٪ഗ3ዐ‫ڦ‬࿋[DB16:DB15]ยዃྺ1Ă0้Lj੗๑ీ၎࿋ ምཞօă‫ړ‬၎࿋ምཞօ๑ీ้Ljాև้ۨഗᅜူ๕໯ߴ‫؜‬ ‫ڦ‬क़߰tSYNCׂิཞօ႑ࡽǖ tSYNC = CLK_DIV_VALUE × MOD × tPFD ഄዐǖtPFD๟PFD֖੊ዜ೺ǗCLK_DIV_VALUE๟स٪ഗ3 ‫ڦ‬࿋[DB14:DB3]໯ยዃ‫ڦ‬ๆ৊዆ኵLj੗ᅜ๟1዁4095‫ྷݔ‬ ా‫ڦ‬ඪࢆኝຕǗMOD๟स٪ഗ1 (R1)‫ڦ‬࿋[DB14:DB3]໯ย ዃ‫ڦ‬ఇຕኵă ႎೕ୲ยዃࢫLjLEฉืᄂࢫ‫߲ܾڼڦ‬ཞօஞ؋ᆩઠ๑๼‫؜‬ ၎࿋ᇑ֖੊ዘႎཞօătSYNC้क़‫ڦ‬ยዃኵ዁ณᆌᇑፌֶ൧ ઄ူ‫ڦ‬໮้ۨक़၎ཞLjᅜԍኤ၎࿋ምཞօ݀ิᇀPLLॺ૬ ຨༀዐ‫ڦ‬ፌࢫᅃ߲ዜཌኮࢫă ሞ཮33໯๖‫ڦ‬૩ጱዐLjPFD֖੊ྺ25 MHzLjMOD = 125Lj ᅺܸཚ‫ڢ‬क़߰ྺ200 kHzăॽCLK_DIV_VALUEยዃྺ80Lj ܸٗtSYNC‫ڪ‬ᇀ400 μsă LE tSYNC SYNC (INTERNAL) LAST CYCLE SLIP FREQUENCY PHASE PLL SETTLES TO INCORRECT PHASE PLL SETTLES TO CORRECT PHASE AFTER RESYNC 07325-020 –100 0 100 200 300 400 500 600 700 800 900 1000 TIME (μs) ཮33 ၎࿋ምཞօ๖૩ ၎࿋Պ‫!ײ‬ स٪ഗ1ዐ‫ڦ‬၎࿋ጴ੦዆RF๼‫؜‬၎࿋ă‫ُړ‬၎࿋ጴٗ0෢዁ MOD้LjRF๼‫؜‬၎࿋ᅜ360°/MOD‫ڦ‬օ৊෢ࡗ360°‫ྷݔ‬ă Rev. 0 | Page 24 of 28  ᆌᆩ႑တ! ኱থՎೕۙ዆ഗ! एበ݀พऐኟሁઠሁ‫֑ںܠ‬ᆩ኱থՎೕ঳ࠓă཮34ྺසࢆ ૧ᆩADIࠅິഗॲઠํ၄޿ဣཥă ‫ۉ‬ୟ཮ዐ֑ᆩAD9761 TxDAC®ࢅADL5375‫ڦ‬঴ਦ‫ݛ‬ӄă๑ ᆩມཚ‫ڢ‬ण‫ׯ‬DACLj૩ස‫ۨܮ‬ሺᅮࢅೋᅎ೅ದ༬Ⴀ‫ݴ‬՚ྺ ±0.02 dBࢅ±0.001 dB‫ڦ‬AD9788Lj੗ඓԍُև‫ݴ‬႑ࡽ૾໯ࠋ ၅‫ڦ‬ဃֶ)ሞኝ߲࿒‫*ాྷݔ܈‬टၭă Ԩና(LO)૧ᆩADF4350ઠํ၄ă࣍ୟ୳հഗᆩADIsimPLL™ ઠยऺLjཚ‫ڢ‬क़߰ྺ200 kHzLjԿ࣍‫ྺ੻ټ‬35 kHză ADF4350 ADL5375‫ڦ‬LO‫܋‬੨੗ᅜᆩADF4350‫ࢻڦ‬ցRFOUTAࢅRFOUTB ๼‫؜‬ᅜֶ‫ݛݴ‬๕ൻ‫ۯ‬ăᇑ‫܋ڇ‬LOൻ‫ۯ‬ഗ၎ԲLjኄዖ‫ݛ‬๕੗ ༵ࠃ߸ॅ‫ڦ‬ႠీLjժ൐փႴᄲ๑ᆩә୿ઠॽ‫܋ڇ‬LO๼෇ገ ࣑ྺ߸๢ࢇADL5375‫ݴֶڦ‬LO๼෇ăኄዖದዃዐLj LO‫ڦ‬ ‫ۆ‬႙਩‫ߵݛ‬၎࿋ሯำ)100 Hz዁5 MHz*ྺ0.61°਩‫ߵݛ‬ኵă AD8349থ๴−10 dBm዁0 dBm‫ڦ‬LOൻ‫୲ࠀۯ‬ăፌॅLOࠀ୲ ੗ᅜཚࡗ෉ॲሞADF4350ฉยዃLj߳ୟ๼‫؜‬੗༵ࠃ−4 dBm ዁+5 dBm‫୲ࠀڦ‬ă RF๼‫؜‬ᆩઠൻ‫ۯ‬50 Ω޶ሜLj‫ڍ‬ՂႷ঍ୁ᳘ࢇLjස཮34໯๖ă සࡕᆩ2 V‫ރރ‬ኵ႑ࡽᅜኟ঍‫ݛ‬๕ൻ‫ۯ‬IࢅQ๼෇Ljሶۙ዆ഗ ໯ׂิ‫ڦ‬๼‫୲ࠀ؜‬ሀྺ2 dBmă REFIO MODULATED DIGITAL DATA FSADJ 2k 51 IOUTA AD9761 TxDAC IOUTB QOUTA QOUTB 51 51 LOW-PASS FILTER LOW-PASS FILTER 51 VVCO VDD LOCK DETECT FREFIN 16 17 28 10 4 26 6 32 30 25 VVCO DVDD AVDD CE PDBRF VP SDVDD MUXOUT LD 1nF 1nF 29 REFIN 51 RFOUTB+ 14 1 CLK RFOUTB– 15 2 DATA 3 LE ADF4350 RFOUTA+ 12 4.7k 22 RSET RFOUTA– 13 VTUNE 20 CPOUT 7 SW 5 CPGND SDGND AGND AGNDVCO DGND TEMP VCOM VREF 8 31 9 11 18 21 27 19 23 24 VVCO 3.9nH 2700pF 3.9nH 680 39nF 360 1nF 1nF 1200pF IBBP IBBN ADL5375 QBBP QBBN QUADRATURE PHASE SPLITTER LOIP LOIN RFO DSOP SPI-COMPATIBLE SERIAL BUS 07325-021 10pF 0.1μF 10pF 0.1μF 10pF 0.1μF ཮34. ኱থՎೕۙ዆ഗ Rev. 0 | Page 25 of 28 ADF4350 থ੨! ADF4350‫ڦ‬ຕጴথ੨ྺᇑSPIग़ඹ‫زڦ‬ႜথ੨Ljᆩᇀॽຕ਍ ႀ෇ഗॲăCLKĂDATAࢅLE੦዆ຕ਍‫د‬๼ăሞCLKฉื ᄂॽ32࿋ຕ਍ደ࿋ႀ෇‫ܔ‬ᆌस٪ഗLj‫ړ‬LEՎྺߛ‫ۉ‬ೝ้Lj ຕ਍ԥ‫د‬๼዁‫ܔ‬ᆌ‫ڦ‬໮٪ഗă้Ⴞ཮९཮2Ljस٪ഗ‫ں‬኷ ՗९՗5ă ADuC812থ੨ ཮35၂๖ADF4350ᇑADuC812 MicroConverter®ኮक़‫ڦ‬থ ੨ăADuC812एᇀ8051ాࢃLjᅺُ޿থ੨੗ᅜ๢ᆩᇀඪࢆ एᇀ8051‫ྲڦ‬੦዆ഗăMicroConverterยዃྺSPIዷఇ๕Lj CPHA = 0ăැᄲഔ‫֡ۯ‬ፕLjൻ‫ۯ‬LE‫ڦ‬I/O‫܋‬੨ᆌՎྺ‫ۉگ‬ ೝăADF4350‫߳ڦ‬໮٪ഗႴᄲᅃ߲32࿋ጴLjഄํ၄‫݆ݛ‬๟ ٗMicroConverterႀ෇຺߲8࿋ጴব዁޿ഗॲăႀ෇‫຺߲ڼ‬ ጴবኮࢫLjLE๼෇ᆌՎྺߛ‫ۉ‬ೝLjᅜྜ‫دׯ‬๼ă SCLOCK MOSI ADuC812 I/O PORTS CLK SDATA LE ADF4350 CE MUXOUT (LOCK DETECT) ཮35. ADuC812ᇑADF4350থ੨ ADuC812‫ڦ‬I/O‫܋‬੨၍ᄺ੗ᆩઠ੦዆࠲܏๼෇(CE)ࢅ໮ۨ ॠ֪)MUXOUTದዃྺ໮ۨॠ֪Ljժᆯ‫ೌڇ‬ऐ๼෇‫܋‬੨৊ ႜ୾კ*ă‫߾ړ‬ፕሞ໯ຎఇ๕้LjADuC812‫ڦ‬ፌ‫ٷ‬SCLOCK ໏୲ྺ4 MHzăኄᅪ࿆ጣLj๼‫؜‬ೕ୲Վࣅ‫ڦ‬ፌ‫ٷ‬໏୲ྺ125 kHză 07325-022 07325-023 ADSP-21xxথ੨ ཮36၂๖ADF4350ᇑADSP-21xxຕጴ႑ࡽ‫ت‬૙ഗኮक़‫ڦ‬থ ੨ăADF4350‫ڦ‬௅߲໮٪ഗႀ෇Ⴔᄲᅃ߲32࿋‫ز‬ႜጴă‫ܔ‬ ُLj๑ᆩADSP-21xxဣଚ‫ڦ‬ፌ०‫ํڇ‬၄‫݆ݛ‬๟૧ᆩኡ঍༺ ๕ጲ࣐؋‫د‬๼߾ፕఇ๕ăኄᄣLjዐ܏ׂิኮമLj੗ᅜ‫د‬๼ ኝ੷‫زڦ‬ႜຕ਍ă SCLK MOSI TFS ADSP-21xx I/O PORTS CLK SDATA LE ADF4350 CE MUXOUT (LOCK DETECT) ཮36. ADSP-21xxᇑADF4350থ੨ ॽጴ‫܈׊‬ยዃྺ8࿋Lj௅߲32࿋ጴ๑ᆩ຺߲٪‫ئ‬ഗ࿋ዃă ྺ‫߳ܔ‬32࿋໮٪ഗ৊ႜՊ‫ײ‬Lj٪‫ئ‬8࿋ጴবLj๑ీጲ࣐؋ ఇ๕Lj඗ࢫႀ෇DSP‫دڦ‬๼स٪ഗăፌࢫᅃ߲֡ፕഔ‫ۯ‬ጲ ࣐؋‫د‬๼ă ႊೌप‫ހ‬ጎ‫ڦ‬PCBยऺኸళ ႊೌप‫ހ‬ጎ(CP-32-2)ฉ‫ࡰڦ‬ಎྺ‫ݛ‬ႚăPCBࡰಎᆌԲ‫ހ‬ጎ ࡰಎ‫׊‬0.1 mmLj੻0.05 mmă‫ހ‬ጎࡰಎᆌ࿋ᇀPCBࡰಎዐ ᄕLjᅜඓԍࡰথথཀྵፌ‫ٷ‬ăႊೌप‫ހ‬ጎ‫ڹڦ‬ևᆶᅃ߲ዐᄕ ஋୞‫ࡰڦ‬ಎᆩᇀොඤă PCB‫ڦ‬ොඤࡰಎ዁ณᆌᇑ஋୞ࡰಎᅃᄣ‫ٷ‬ăሞPCBฉLjො ඤࡰಎᇑࡰಎ཮ႚాՉ‫ڦ‬क़ਐ዁ณᆌྺ0.25Ljᅜඓԍփࣷ ݀ิ‫܌‬ୟă PCBොඤࡰಎฉ੗ᅜਸොඤཚ੥Ljᅜ߀฀‫ހ‬ጎ‫ڦ‬ොඤႠ ీăොඤཚ੥ᆌᇑොඤࡰಎࢇྺᅃ༹Ljक़ਐྺ1.2 mmăཚ ੥኱০ᆌሞ0.3 mm዁0.33 mmኮक़Ljཚ੥࠶ᆌ‫܆‬ᅜ1Ӈິ‫ڦ‬ ཟLjᅜ‫܂‬ዿཚ੥ă Rev. 0 | Page 26 of 28  ๼‫؜‬೅ದ! ೅ದADF4350‫ڦ‬๼‫؜‬ᅜํ၄ፌॅ֡ፕ‫݆ݛڦ‬ᆶ‫ܠ‬ዖLjፌए Ԩ‫݆ݛڦ‬๟ॽᅃ߲50 Ω‫ۉ‬ፆ૶‫ڟ‬VVCOăස཮37໯๖Lj‫૴ز‬ ᅃ߲100 pF‫ڦ‬኱ୁಖୟ‫ۉ‬ඹă޿‫ۉ‬ፆᇑೕ୲࿮࠲Ljᅺܸ੗ ༵ࠃଆࡻ‫ټ੻ڦ‬೅ದႠీăُ‫ۉ‬ୟ‫ڦ‬๼‫୲ࠀ؜‬ঢ়ࡗ50 Ω޶ ሜዐLjཚ‫׉‬੗༵ࠃस٪ഗ4 (R4)‫ڦ‬࿋D2ࢅD1໯჋ስ‫ڦ‬ኵă VVCO 50 RFOUT 100pF 50 07325-021 ཮37. ०ᅟADF4350๼‫؜‬प ߸ࡻ‫ڦ‬঴ਦ‫ݛ‬ӄ๟ॽᅃ߲‫)ߌۉୁݴ‬؊‫ړ‬RFܳୁං*૶‫ڟ‬ VVCOăᆯُ੗इ‫ڦࡻ߸ڥ‬೅ದႠీLjܸ༵ٗࠃ߸ߛ๼‫ࠀ؜‬ ୲ă ํᄓ՗௽Lj‫ܔ‬ᇀW-CDMA UMTSೕ܎1)2110 MHz዁2170 MHz*Lj཮38໯๖‫ۉ‬ୟ੗༵ࠃ‫؜‬෥‫ڦ‬50 Ω೅ದăኄዖ൧઄ ူLjፌ‫ٷ‬๼‫୲ࠀ؜‬ሀྺ5 dBmăଇዖ‫܋ڇ‬঳ࠓ਩੗ᅜ๑ᆩ EVAL-ADF4350EB1Zೠࠚӱ৊ႜᄓኤă ՗7. LCә୿ፇ‫ׯ‬ᇮॲ ೕ୲ ‫(ྷݔ‬MHz) ‫ߌۉ‬L1(nH) 137 ዁ 300 100 300 ዁ 460 51 400 ዁ 600 30 600 ዁ 900 18 860 ዁ 1240 12 1200 ዁ 1600 5.6 1600 ዁ 3600 3.3 2800 ዁ 3800 2.2 ‫ۉ‬ඹC1 (pF) 10 5.6 5.6 4 2.2 1.2 0.7 0.5 本页已使用福昕阅读器进行编辑。 福昕软件(C)2005-2010,版权所有, 仅供试用。 ADF4350 VVCO RFOUT 扼流圈能防止交流六道Vvco 3.9nH 1nF 50 07325-025 ཮38. ፌॅADF4350๼‫؜‬प සࡕփႴᄲֶ‫ݴ‬๼‫؜‬Ljሶփᆩ‫ڦ‬๼‫؜‬੗ᅜ‫܋‬থഐઠLjईኁ ૧ᆩә୿ॽଇୟ๼‫ࢇ؜‬ժă VVCO L2 L1 RFOUTA+ C1 C2 RFOUTA– 50 L1 C1 07325-132 ཮39. ADF4350 LCә୿ ૧ᆩ‫ݴ‬૬‫ۉࢅߌۉ‬ඹ੗ᅜํ၄཮39໯๖‫ڦ‬ә୿঳ࠓă ᇮॲL1ࢅC1ࠓ‫ׯ‬LCә୿LjL2ྺRFOUTA−༵ࠃ኱ୁୟ০Lj‫ۉ‬ ඹC2ᆩᇀ߰኱ă RFܳୁං ‫( ߌۉ‬nH) 390 180 120 68 39 15 10 10 ߰኱ ‫ۉ‬ඹ (pF) 1000 120 120 120 10 10 10 10 ๼‫୲ࠀ؜‬ ֪ଉ঳ࡕ (dBm) 9 10 10 10 9 9 8 8 Rev. 0 | Page 27 of 28 ADF4350 ྔႚ؅٫ PIN 1 INDICATOR 5.00 BSC SQ TOP VIEW 4.75 BSC SQ 0.60 MAX 0.50 BSC 0.50 0.40 0.30 0.60 MAX 25 24 32 1 EXPOSED PAD (BOTTOM VIEW) 17 8 16 9 PIN 1 INDICATOR 3.25 3.10 SQ 2.95 0.25 MIN 12° MAX 0.80 MAX 0.65 TYP 3.50 REF 0.05 MAX FOR PROPER CONNECTION OF 1.00 0.02 NOM THE EXPOSED PAD, REFER TO THE PIN CONFIGURATION AND 0.85 0.30 0.80 SEATING 0.23 0.20 REF COPLANARITY 0.08 FUNCTION DESCRIPTIONS SECTION OF THIS DATA SHEET. PLANE 0.18 COMPLIANT TO JEDEC STANDARDS MO-220-VHHD-2 ཮40. 32ᆅগLFCSP_VQ‫ހ‬ጎLj 5 mm x 5 mm ,‫ג‬ԋ༹(CP-32-2) ؅٫‫ڇ‬࿋ǖmm ۩ࠔኸళ ႙ࡽ ADF4350BCPZ1 ADF4350BCPZ-RL1 ADF4350BCPZ-RL71 EVAL-ADF4350EB1Z1 ࿒‫ྷݔ܈‬ −40°C ዁ +85°C −40°C ዁ +85°C −40°C ዁ +85°C 1 Z = ‫ࢇޙ‬RoHSՔጚ‫ڦ‬ग़ඹഗॲă ‫ހ‬ጎ௮ຎ 32ᆅগLFCSP_VQ 32ᆅগLFCSP_VQ 32ᆅগLFCSP_VQ ೠࠚӱ 011708-A ‫ހ‬ጎ჋ၜ CP-32-2 CP-32-2 CP-32-2 ©2008 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D07325-0-11/08(0) Rev. 0 | Page 28 of 28

Top_arrow
回到顶部
EEWORLD下载中心所有资源均来自网友分享,如有侵权,请发送举报邮件到客服邮箱bbs_service@eeworld.com.cn 或通过站内短信息或QQ:273568022联系管理员 高进,我们会尽快处理。