AD7760BSVZ-REEL

24࿋Ă2.5 MSPSĂ100 dB Σ-Δ႙ADCLjాዃೌా࣐؋ AD7760 ༬Ⴀ ࠀీ઀཮ 78 kHz๼‫؜‬ຕ਍໏୲้Lj‫ۯ‬ༀ‫ྺྷݔ‬120 dB VIN– VIN+ 2.5 MHz๼‫؜‬ຕ਍໏୲้Lj‫ۯ‬ༀ‫ྺྷݔ‬100 dB 78 kHz๼‫؜‬ຕ਍໏୲้Lj႑ሯԲ(SNR)ྺ112 dB 2.5 MHz๼‫؜‬ຕ਍໏୲้Lj႑ሯԲ(SNR)ྺ100 dB MULTIBIT Σ-Δ MODULATOR DIFF ྜඇ୳հ‫ڦ‬ፌ‫ٷ‬๼‫؜‬໏୲ǖ2.5 MHz VREF+ RECONSTRUCTION BUF RBIAS ೌాֶ‫ٷݣݴ‬ഗLjᆩᇀ႑ࡽ࣐؋ AD7760 PROGRAMMABLE DECIMATION ‫گ‬ཚᆶ၌ஞ؋ၚᆌ(FIR)୳հഗLjਏᆶఐණ‫ڦ‬ईᆩࢽ ۙ዆ഗ๼‫؜‬ఇ๕ ‫ג‬ଉ‫ײ‬Ԓয়࿋ AVDD4 DECAPA/B ඇֶ‫ۙݴ‬዆ഗ๼෇ ! !੗Պ‫ײ‬ဣຕ AVDD2 AVDD3 MCLK RESET VDRIVE DVDD CONTROL LOGIC I/O OFFSET AND GAIN REGISTERS SYNC AGND DGND FIR FILTER ENGINE ຕጴೋዃᇑሺᅮၯኟस٪ഗ ୳հഗಖୟఇ๕ CS RD/WR DRDY DB0 TO DB15 ‫ۉูࢅࡼࠀگ‬ఇ๕ 04975-001 ੗Պ‫֑ࡗײ‬ᄣ୲(8Xċ256X) AVDD1 ཮1 ‫ܠ‬ഗॲཚࡗSYNCᆅগํ၄ཞօ ᆌᆩ ຕ਍֑णဣཥ ና‫ݴۯ‬ဆ ᅏഗᅏ՗ ߁ຎ AD7760๟ᅃ੼ߛႠీĂ24࿋Σ-Δ႙ఇຕገ࣑ഗ(ADC)Lj බࢇକ੻๼෇‫੻ټ‬Ăߛ໏༬ႠᇑΣ-Δገ࣑रຍ‫ڦ‬ᆫ๞Lj 2.5 MSPS้႑ሯԲ੗‫ٳ‬100 dBLjᅺُ‫׉ݥ‬๢ࢇߛ໏ຕ਍֑ णᆌᆩă੻‫ۯ‬ༀ‫ྷݔ‬ᅜत၂ዸই‫۠ंੇڦگ‬ᄲ൱Lj๑ยऺ ࡗ‫ڥײ‬ᅜ०ࣅăAD7760ాዃᆩઠൻ‫ۯ‬एጚ‫ۉ‬უ‫࣐ڦ‬؋Ăᆩ ᇀ႑ࡽ࣐؋ࢅ‫ۉ‬ೝገ࣑‫ٷݣݴֶڦ‬ഗĂ‫ג‬ଉ‫ײ‬ՔኾĂాև ሺᅮᇑ฿ۙस٪ഗᅜत‫گ‬ཚຕጴFIR୳հഗLj๟ᅃ੼ߛ‫܈‬ ण‫ڦׯ‬৆ٙ႙ຕ਍֑णഗॲLjኻႴ჋ስटณ‫ྷྔڦ‬ᇮॲă ُྔLj޿ഗॲ༵ࠃ੗Պ‫؏ײ‬ൽ୲Ljܸ൐සࡕຕጴFIR୳հ ഗ‫ڦ‬ఐණ༬ኙփ๢ࢇᆌᆩᄲ൱Lj࣏੗‫ܔ‬ഄ৊ႜۙኝă AD7760๟ᄲ൱ߛ႑ሯԲ(SNR)൐࿮Ⴔ֑ᆩްሗ‫ڦ‬മ‫܋‬႑ࡽ ‫ت‬૙ยऺᆌᆩ‫ڦ‬૙ၙഗॲă ֶ‫ݴ‬๼෇ᆯఇెۙ዆ഗᅜፌߛ40 MSPS‫֑ڦ‬ᄣ໏୲৊ႜ֑ ᄣăۙ዆ഗ๼‫؜‬ᆯᅃဣଚ‫گ‬ཚ୳հഗ‫ت‬૙Ljፌࢫᅃ߲୳հ ഗਏᆶఐණ‫ڦ‬ईᆩࢽ੗Պ‫ײ‬ဣຕă֑ᄣ໏୲Ă୳հഗገች ೕ୲ࢅ๼‫؜‬໏୲ᆯAD7760‫ྔڦ‬և้ዓೕ୲ᇑದዃस٪ഗࠌ ཞยዃă ఇె๼෇‫ྷݔ‬ൽਦᇀAD7760֑ᆩ‫ڦ‬एጚ‫ۉ‬უă‫ړ‬एጚ‫ۉ‬უ ྺ4 V้Ljఇె๼෇‫ྺྷݔ‬एᇀ2 Vࠌఇ‫ۉ‬უ‫ڦ‬±3.2 Vֶ‫ݴ‬ ೋዃ‫ۉ‬უăُࠌఇೋዃ੗૧ᆩೌాֶ‫ٷݣݴ‬ഗઠํ၄Ljٗ ܸ੗৊ᅃօই‫ྔگ‬և႑ࡽۙ૙ᄲ൱ă AD7760֑ᆩ64ᆅগ஋୞ࡰಎTQFP‫ހ‬ጎLj‫ۨܮ‬࿒‫ྺྷݔ܈‬− 40°C዁+85°C߾ᄽ࿒‫ྷݔ܈‬ă ՗1. ၎࠲ഗॲ ׂ೗႙ࡽ AD7762 AD7763 ௮ຎ 24࿋Ă625 kSPSĂ109 dBĂΣ-Δ႙Ăժႜথ੨ 24࿋Ă625 kSPSĂ109 dBĂΣ-Δ႙Ă‫ز‬ႜথ੨ Rev. A 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. 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 ©2006 Analog Devices, Inc. All rights reserved. ADIዐ࿔Ӳຕ਍๮֩๟ᆈ࿔Ӳຕ਍๮֩‫ڦ‬ᅳ࿔Lj৤൩ଌ঴‫݋‬ᅳዐ੗ీ٪ሞ‫ڦ‬ᇕჾፇኯई‫݋‬ᅳ‫ٱ‬ဃLjADIփ‫݋ܔ‬ᅳዐ٪ሞ‫ֶڦ‬ᅴईᆯׂُิ‫ٱڦ‬ဃ޶ሴăසႴඓණඪࢆَᇕ‫ڦ‬ጚඓႠLj൩֖੊ADI༵ࠃ ‫ڦ‬ፌႎᆈ࿔Ӳຕ਍๮֩ă AD7760 ణ୤ ༬Ⴀ 1 ! ႀ෇AD7760 23 ᆌᆩ 1 AD7760้ዓᄲ൱ 24 ࠀీ઀཮ 1 ! ࣐؋MCLK႑ࡽ 24 ߁ຎ 1 MCLK۶‫ۯ‬ᄲ൱ 24 Ⴊ۩૦๏ 3 ൻ‫ۯ‬AD7760 26 रຍࡀ߭ 4 ! ๑ᆩAD7760 27 ้Ⴞࡀ߭ 6 ඁ᳘ࢅքਆॺᅱ 28 ้Ⴞ཮ 7 ! ‫ۉ‬ᇸඁ᳘ 29 ਨ‫ܔ‬ፌ‫ۨܮٷ‬ኵ 8 ! ഄ໲ඁ᳘ 29 ESDয়ߢ 8 ! एጚ‫ۉ‬უ୳հ 29 ᆅগದዃࢅࠀీ௮ຎ 9 ! ֶ‫ٷݣݴ‬ഗᇮॲ 29 ຍᇕ 11 ! ೋዃ‫ۉ‬ፆ჋ስ 29 ‫ۆ‬႙߾ፕ༬Ⴀ 12 ! քਆ੊୯ 29 ߾ፕᇱ૙ 18 ! ஋୞ࡰಎ 29 ۙ዆ഗຕ਍๼‫؜‬ఇ๕ 19 ੗Պ‫ײ‬FIR୳հഗ 30 ۙ዆ഗ๼෇ 19 ူሜᆩࢽۨᅭ୳հഗ 31 ۙ዆ഗຕ਍๼‫ۙ؜‬ኝ 19 ! ୳հഗူሜ๖૩ 31 ۙ዆ഗຕ਍๼‫؜‬ఇ๕থ੨ 20 AD7760स٪ഗ 33 ้ዓ1‫ݴ‬ೕఇ๕( = 1) 20 ! ੦዆स٪ഗ1—‫ں‬኷0x0001 33 ้ዓ2‫ݴ‬ೕఇ๕( = 0) 20 ! ੦዆स٪ഗ2—‫ں‬኷0x0002 33 AD7760֑ᆩۙ዆ഗ๼‫؜‬ఇ๕߾ፕ 21 ! ጒༀस٪ഗ)ኻ‫*܁‬ 34 AD7760থ੨ 22 ! ฿ۙस٪ഗ—‫ں‬኷0x0003 34 ‫܁‬ൽຕ਍ 22 ! ሺᅮस٪ഗ—‫ں‬኷0x0004 34 ‫܁‬ൽጒༀࢅഄ໲स٪ഗ 22 ! ‫ג‬ଉ‫ײ‬स٪ഗ—‫ں‬኷0x0005 34 ࠌၛժႜጺ၍ 22 ྔႚ؅٫ 35 ཞօ 22 ! ۩ࠔኸళ 35 Rev. A | Page 2 of 36 AD7760 Ⴊ۩૦๏ 2006౎8ሆ—Ⴊ۩Ӳ0዁Ⴊ۩ӲA ߸ႎ‫ހ‬ጎ჋ၜ ඇ࿔ ሺेMCLK۶‫ۯ‬ᄲ൱Ք༶ 24 Ⴊ߀༬Ⴀ 1 Ⴊ߀ൻ‫ۯ‬AD7760և‫ݴ‬ 26 Ⴊ߀रຍࡀ߭ 4 Ⴊ߀཮51 26 Ⴊ߀ਨ‫ܔ‬ፌ‫ۨܮٷ‬ኵ 8 ሺे཮52 26 Ⴊ߀ຍᇕև‫ݴ‬ 11 Ⴊ߀཮55 28 ሺे཮36዁཮39 17 Ⴊ߀཮56 29 ሺेۙ዆ഗຕ਍๼‫؜‬ఇ๕և‫ݴ‬ 19 ሺे஋୞ࡰಎև‫ݴ‬ 29 ሺे཮41዁཮47 19 Ⴊ߀੦዆स٪ഗ2—‫ں‬኷0x0002և‫ݴ‬ 33 ሺेۙ዆ഗຕ਍๼‫؜‬ఇ๕থ੨և‫ݴ‬ 20 Ⴊ߀ጒༀस٪ഗ)ኻ‫*܁‬և‫ݴ‬ 34 Ⴊ߀‫܁‬ൽຕ਍և‫ݴ‬ 22 ሺेཞօև‫ݴ‬ 22 Ⴊ߀AD7760้ዓᄲ൱և‫ݴ‬ 24 ሺे࣐؋MCLK႑ࡽև‫ݴ‬ 24 2005౎7ሆ—Ⴊ۩Ӳ0ǖ‫؛‬๔Ӳ Rev. A | Page 3 of 36 AD7760 रຍࡀ߭ ‫ݥأ‬ଷᆶຫ௽LjAVDD1 = DVDD = VDRIVE = 2.5 VLjAVDD2 = AVDD3 = AVDD4 = 5 VLjVREF+ = 4.096 VLjMCLK‫ = ܈ޗ‬5 VLjTA = 25°CLj ኟ‫׉‬ఇ๕Lj๑ᆩᇮॲኵස՗8໯๖‫ٷݣాೌڦ‬ഗă1 ՗2 ֖ຕ ‫ۯ‬ༀႠీ 1/256؏ൽ ! ! ‫ۯ‬ༀ‫ྷݔ‬ ֪๬ཉॲ/ጀ๥ ! ! ႑ሯԲ(SNR)2 ๼෇‫ = ܈ޗ‬−0.5 dBFS ๼෇‫ = ܈ޗ‬−60 dBFS ‫ݥ‬ၿհLj๼෇‫ = ܈ޗ‬−6 dBFS ๼෇‫ = ܈ޗ‬−60 dBFS ๼෇‫ = ܈ޗ‬−0.5 dBFS ๼෇‫ = ܈ޗ‬−6 dBFS ๼෇‫ = ܈ޗ‬−60 dBFS MCLK = 40 MHz, ODR = 625 kHz, fIN=100 kHz ۙ዆ഗ๼෇‫܌‬ୟ ! ! ࿮ሗො‫ۯ‬ༀ‫(ྷݔ‬SFDR) ! ! ጺၿհ฿ኈ(THD) 1/32؏ൽ ! ! ‫ۯ‬ༀ‫ྷݔ‬ ! ! ႑ሯԲ(SNR)2 ! ! ࿮ሗො‫ۯ‬ༀ‫(ྷݔ‬SFDR) ! ! ጺၿհ฿ኈ(THD) 1/8؏ൽ ! ! ‫ۯ‬ༀ‫ྷݔ‬ ! ! ႑ሯԲ(SNR)2 ! ! ࿮ሗො‫ۯ‬ༀ‫(ྷݔ‬SFDR) ! ! ጺၿհ฿ኈ(THD) ! ! ܾ঩IMD ! ! ෙ঩IMD ኱ୁ৛‫܈‬ ! ‫ݴ‬Ր୲ ! ྲ‫ݥݴ‬၍Ⴀ(DNL) ! ओ‫ݥݴ‬၍Ⴀ(INL) ! ଭဃֶ ! ሺᅮဃֶ ! ଭဃֶ೏ᅎ ! ሺᅮဃֶ೏ᅎ ຕጴ୳հഗၚᆌ 1/8؏ൽ ! ! ඖჽ‫׿‬ 1/32؏ൽ ! ! ඖჽ‫׿‬ 1/256؏ൽ ! ! ඖჽ‫׿‬ ֪๬ཉॲ/ጀ๥ ‫ڇ‬࿋ MCLK = 40 MHz, ODR = 78 kHz, fIN= 1 kHz ۙ዆ഗ๼෇‫܌‬ୟ 119 120.5 112 59 126 77 −105 −106 −75 dBLjፌၭኵ dBLj‫ۆ‬႙ኵ dBLj‫ۆ‬႙ኵ dBLj‫ۆ‬႙ኵ dBcLj‫ۆ‬႙ኵ dBcLj‫ۆ‬႙ኵ dBLj‫ۆ‬႙ኵ dBLj‫ۆ‬႙ኵ dBLj‫ۆ‬႙ኵ 108 109.5 107 120 −105 −106 dBLjፌၭኵ dBLj‫ۆ‬႙ኵ dBLj‫ۆ‬႙ኵ dBcLj‫ۆ‬႙ኵ dBLj‫ۆ‬႙ኵ dBLj‫ۆ‬႙ኵ 99 100.5 100 99 98 120 114 −103 −102 −115 −89 dBLjፌၭኵ dBLj‫ۆ‬႙ኵ dBLj‫ۆ‬႙ኵ dBLj‫ۆ‬႙ኵ dBLj‫ۆ‬႙ኵ dBcLj‫ۆ‬႙ኵ dBcLj‫ۆ‬႙ኵ dBLj‫ۆ‬႙ኵ dBLj‫ۆ‬႙ኵ dBLj‫ۆ‬႙ኵ dBLj‫ۆ‬႙ኵ 24 ࿋ 0.00076 0.014 0.02 0.016 0.00001 0.0002 %Lj‫ۆ‬႙ኵ %Lj‫ۆ‬႙ኵ %Ljፌ‫ٷ‬ኵ %Lj‫ۆ‬႙ኵ % FS/°C,‫ۆ‬႙ኵ % FS/°C,‫ۆ‬႙ኵ MCLK = 40 MHz 12 μs,‫ۆ‬႙ኵ MCLK = 40 MHz 47 μs,‫ۆ‬႙ኵ MCLK = 40 MHz 358 μs,‫ۆ‬႙ኵ ๼෇‫ = ܈ޗ‬−0.5 dBFS ‫ݥ‬ၿհLj๼෇‫ = ܈ޗ‬−6 dBFS ๼෇‫ = ܈ޗ‬−0.5 dBFS ๼෇‫ = ܈ޗ‬−6 dBFS MCLK = 40 MHz, ODR = 2.5 MHz ۙ዆ഗ๼෇‫܌‬ୟ fIN= 1 kHzLj๼෇‫ = ܈ޗ‬−0.5 dBFS fIN= 100 kHzLj๼෇‫ = ܈ޗ‬−0.5 dBFS fIN= 1 MHzLj๼෇‫ = ܈ޗ‬−0.5 dBFS ‫ݥ‬ၿհLjfIN= 100 kHzLj๼෇‫ = ܈ޗ‬−6 dBFS ‫ݥ‬ၿհLjfIN= 1 MHzLj๼෇‫ = ܈ޗ‬−6 dBFS ๼෇‫ = ܈ޗ‬−0.5 dBFSLjfIN= 100 kHz ๼෇‫ = ܈ޗ‬−6 dBFSLjfIN= 100 kHz fINA = 989.95 kHz, fINB = 999.95 kHz fINA = 989.95 kHz, fINB = 999.95 kHz ԍኤ35࿋‫ۙڇ‬Ⴀ Rev. A | Page 4 of 36 AD7760 ֖ຕ ఇె๼෇ ! ֶ‫ݴ‬๼෇‫ۉ‬უ ! ๼෇‫ۉ‬ඹ एጚ๼෇/๼‫؜‬ VREF๼෇‫ۉ‬უ VREF๼෇኱ୁ୑‫ୁۉ‬ VREF๼෇‫ۉ‬ඹ ࠀࡼ ! ጺࠀࡼ ! ‫ځ‬ऐఇ๕ ‫ۉ‬ᇸᄲ൱ AVDD1)ۙ዆ഗ‫ۉ‬ᇸ* AVDD2)ཚᆩ‫ۉ‬ᇸ* AVDD3)ֶ‫ٷݣݴ‬ഗ‫ۉ‬ᇸ* AVDD4)एጚ࣐؋‫ۉ‬ᇸ* DVDD VDRIVE ! ኟ‫׉‬ఇ๕ AIDD1)ۙ዆ഗ* AIDD2)ཚᆩ*3 AIDD4)एጚ࣐؋* ! ‫ࡼࠀگ‬ఇ๕ AIDD1)ۙ዆ഗ* AIDD2)ཚᆩ*3 AIDD4)एጚ࣐؋* AIDD3)ֶ‫ٷݣݴ‬ഗ* DIDD ຕጴI/O MCLK๼෇‫܈ޗ‬4 ! ๼෇‫ۉ‬ඹ ! ๼෇୑‫ୁۉ‬ ! ෙༀ୑‫(ୁۉ‬D15:D0) VINH VINL VOH5 VOH6 VOL4 1 2 3 4 5 6 ֪๬ཉॲ/ጀ๥ ֪๬ཉॲ/ጀ๥ ‫ڇ‬࿋ VIN(+) – VIN(−), VREF = 2.5 V VIN(+) – VIN(−), VREF = 4.096 V ࿋ᇀాև࣐؋๼෇ ࿋ᇀۙ዆ഗ๼෇ ±2 ±3.25 5 55 V p-p V p-p VDD3 = 3.3 V ± 5% VDD3 = 5 V ± 5% +2.5 +4.096 ±6 5 V,ፌ‫ٷ‬ኵ V,ፌ‫ٷ‬ኵ μA,ፌ‫ٷ‬ኵ pF,ፌ‫ٷ‬ኵ ኟ‫׉‬ఇ๕ ‫ࡼࠀگ‬ఇ๕ ้ዓཕኹ 958 661 6.35 mW,ፌ‫ٷ‬ኵ mW,ፌ‫ٷ‬ኵ mW,ፌ‫ٷ‬ኵ ±5% ±5% +2.5 +5 +3.15/+5.25 +3.15/+5.25 +2.5 +1.65/+2.7 V V V,ፌၭኵ/ፌ‫ٷ‬ኵ V,ፌၭኵ/ፌ‫ٷ‬ኵ V V,ፌၭኵ/ፌ‫ٷ‬ኵ AVDD4 = 5 V 49/51 40/42 34/36 mA,‫ۆ‬႙ኵ/ፌ‫ٷ‬ኵ mA,‫ۆ‬႙ኵ/ፌ‫ٷ‬ኵ mA,‫ۆ‬႙ኵ/ፌ‫ٷ‬ኵ AVDD4 = 5 V AVDD3 = 5 V, ଇዖఇ๕ ଇዖఇ๕ 26/28 20/23 9/10 41/44 63/70 mA,‫ۆ‬႙ኵ/ፌ‫ٷ‬ኵ mA,‫ۆ‬႙ኵ/ፌ‫ٷ‬ኵ mA,‫ۆ‬႙ኵ/ፌ‫ٷ‬ኵ mA,‫ۆ‬႙ኵ/ፌ‫ٷ‬ኵ mA,‫ۆ‬႙ኵ/ፌ‫ٷ‬ኵ 5 7.3 ±5 ±5 0.7 × VDRIVE 0.3 × VDRIVE 1.5 2.4 0.1 V,‫ۆ‬႙ኵ pF,‫ۆ‬႙ኵ μA,ፌ‫ٷ‬ኵ μA,ፌ‫ٷ‬ኵ V,ፌၭኵ V,ፌ‫ٷ‬ኵ V,ፌၭኵ V,‫ۆ‬႙ኵ V,ፌ‫ٷ‬ኵ ±5% ֖९ຍᇕև‫ݴ‬ă SNR༬Ⴀ(dB)֖੊஢ଉ‫ײ‬๼෇FSă‫ݥأ‬ଷᆶຫ௽Lj֪๬ཉॲྺ๼෇႑ࡽԲ஢ଉ‫گײ‬0.5 dBă ‫ୁۉ‬ᇑICLKೕ୲‫ׯ‬Բ૩ă֖९‫ۆ‬႙߾ፕ༬Ⴀև‫ݴ‬ă ኄ๟ํ၄໯ຎႠీ‫ླྀڦ‬४‫܈ޗ‬Lj‫ڍ‬AD7760੗ᅜሞၭᇀ5 V‫ڦ‬MCLK‫߾ူ܈ޗ‬ፕă ૧ᆩ1.65 V‫ڦ‬ፌၭVDRIVE‫ۉ‬უࢅ400 μA޶ሜ‫ୁۉ‬৊ႜ֪๬ă ૧ᆩVDRIVE = 2.5 Vࢅ400 μA޶ሜ‫ୁۉ‬৊ႜ֪๬ă Rev. A | Page 5 of 36 AD7760 ้Ⴞࡀ߭ ‫ݥأ‬ଷᆶຫ௽LjAVDD1 = DVDD = VDRIVE = 2.5 VLjAVDD2 = AVDD3 = AVDD4 = 5 VLjTA = 25°CLjኟ‫׉‬ఇ๕ă Table 3. ֖ຕ ሞTMINĂTMAX้‫ڦ‬၌ኵ ‫ڇ‬࿋ ௮ຎ fMCLK 1 40 500 20 0.5 × tICLK 10 3 (0.5 × tICLK) + 16 ns tICLK tICLK 3 11 0.5 × tICLK 0.5 × tICLK (0.5 × tICLK) + 16 ns 23 19 11 4 × tICLK 4 × tICLK 5 0 23 19 MHz-ፌၭኵ MHz-ፌ‫ٷ‬ኵ kHz-ፌၭኵ MHz-ፌ‫ٷ‬ኵ ‫ۆ‬႙ኵ ns-ፌၭኵ ns-ፌၭኵ ፌ‫ٷ‬ኵ ፌၭኵ ፌၭኵ ns-ፌၭኵ ns-ፌ‫ٷ‬ኵ ‫ۆ‬႙ኵ ‫ۆ‬႙ኵ ፌ‫ٷ‬ኵ ns-ፌၭኵ ns-ፌၭኵ ns-ፌ‫ٷ‬ኵ ፌၭኵ ፌၭኵ ns-ፌၭኵ ns-ፌၭኵ ns-ፌၭኵ ns-ፌၭኵ ໯แे‫ڦ‬ዷ้ዓೕ୲ fICLK t1 1, 2 t2 t3 t4 t5 t6 t7 t8 t92 t102 t11 t12 3, 4 t133, 4 t14 t15 t16 t17 t18 t194, 5 t204, 5 1 2 3 4 5 ٗMCLKइ‫ాڦڥ‬ևۙ዆ഗ้ዓ DRDYஞ؋੻‫܈‬ DRDYူইᄂ‫ڟ‬CSူইᄂ RD/WRยዃ้क़‫ڟ‬CSူইᄂ ຕ਍‫ݡ‬࿚้क़ ‫ۉگ‬ೝ‫܁‬ൽஞ؋੻‫܈‬ ଇْ‫܁‬ൽኮक़‫ۉߛ ڦ‬ೝஞ؋੻‫܈‬ RD/WRԍ‫้׼‬क़‫ڟ‬CSฉืᄂ ጺ၍๥‫้ݣ‬क़ DRDYߛ‫ۉ‬ೝዜ೺ DRDY‫ۉگ‬ೝዜ೺ ຕ਍‫ݡ‬࿚้क़ DRDYฉืᄂമ‫ڦ‬ຕ਍ᆶၳ้क़ DRDYฉืᄂࢫ‫ڦ‬ຕ਍ᆶၳ้क़ ጺ၍๥‫้ݣ‬क़ CS‫ۉگ‬ೝႀ෇ஞ؋੻‫܈‬ ‫ں‬኷ᇑຕ਍ኮक़‫ڦ‬CSߛ‫ۉ‬ೝዜ೺ ຕ਍ยዃ้क़ ຕ਍ԍ‫้׼‬क़ DRDYྺஇड‫ۉگ‬ೝ้LjMCLKူইᄂമ‫ڦ‬ຕ਍ᆶၳ้क़ DRDYྺஇड‫ۉگ‬ೝ้LjMCLKူইᄂࢫ‫ڦ‬ຕ਍ᆶၳ้क़ tICLK = 1/fICLKă ‫ړ‬ICLK = MCLK้LjDRDYஞ؋੻‫܈‬ൽਦᇀ໯ᆩ้क़MCLK‫ࡽدڦ‬੣ࡽԲă ‫ړ‬๑ᆩCDIV = 1‫ۙڦ‬዆ഗ๼‫؜‬ఇ๕้ᆶၳă ้Ⴞ཮֖९ۙ዆ഗຕ਍๼‫؜‬ఇ๕և‫ݴ‬ă ‫ړ‬๑ᆩ CDIV= 0‫ۙڦ‬዆ഗ๼‫؜‬ఇ๕้ᆶၳă Rev. A | Page 6 of 36 AD7760 ้Ⴞ཮ DRDY t5 t1 CS t6 t2 t7 t3 RD/WR DATA MSW 04975-002 t8 t4 D[0:15] LSW + STATUS ཮2. ୳հ๼‫—؜‬ժႜথ੨้Ⴞ཮ CS t15 t16 t17 D[0:15] t18 REGISTER ADDRESS ཮3. AD7760स٪ഗႀ෇ Rev. A | Page 7 of 36 REGISTER DATA 04975-004 RD/WR AD7760 ਨ‫ܔ‬ፌ‫ۨܮٷ‬ኵ ‫ݥأ‬ଷᆶຫ௽LjTA = 25°Că Table 4. ֖ຕ! AVDD1዁GND AVDD2:AVDD4዁GND DVDD዁GND VDRIVE዁GND VIN+ĂVIN–዁GND1 VINA+ĂVINA−዁GND1 ຕጴ๼෇‫ۉ‬უ዁GND2 MCLK዁MCLKGND VREF+዁GND3 AGND዁DGND ! ๼෇‫ୁۉ‬዁‫ۉأ‬ᇸྔ‫ڦ‬ ! ඪࢆᆅগ4 ߾ፕ࿒‫ྷݔ܈‬ ! ฆᆩ ٪‫ئ‬࿒‫ྷݔ܈‬ ঳࿒ TQFP஋୞ࡰಎ‫ހ‬ጎ θJAඤፆ θJCඤፆ ᆅগ࿒‫܈‬Ljࡰথ ! ഘ၎)60௱* ! ࢤྔ)15௱* ESD 1 2 3 4 ‫ۨܮ‬ኵ −0.3 V ዁ +3 V −0.3 V ዁ +6 V −0.3 V ዁ +3 V −0.3 V ዁ +3 V −0.3 V ዁ +6 V −0.3 V ዁ +6 V −0.3 V ዁ DVDD + 0.3 V −0.3 V ዁ +6 V −0.3 V ዁ AVDD4 + 0.3 V −0.3 V ዁ +0.3 V ±10 mA ጀᅪLj‫؜ג‬ฉຎਨ‫ܔ‬ፌ‫ۨܮٷ‬ኵ੗ీࣷ‫ڞ‬ዂഗॲᆦ৳Ⴀ໦ ࣋ăኄኻ๟‫ۨܮ‬ᆌ૰ኵLjփᅪ࿆ጣഗॲሞኄၵईኁඪࢆഄ ໲‫؜ג‬Ԩरຍࡀ߭ກ‫ీࠀڦ‬Ⴀ֡ፕቤব૛Ք௽‫ڦ‬ཉॲူ‫ڦ‬ ࠀీႠ֡ፕă‫׊‬೺ሞਨ‫ܔ‬ፌ‫ۨܮٷ‬ኵཉॲူ߾ፕࣷᆖၚഗ ॲ‫ڦ‬੗੍Ⴀă ESDয়ߢ −40°C ዁ +85°C −65°C ዁ +150°C 150°C 92.7°C/W 5.1°C/W 215°C 220°C 600 V VIN−ĂVIN+ĂVINA−ĂVINA+‫ڦ‬ਨ‫ܔ‬ፌ‫ۉٷ‬უྺ6.0 VईAVDD3 + 0.3 VLj ᅜড‫گ‬ኁྺጚă ຕጴ๼෇‫ڦ‬ਨ‫ܔ‬ፌ‫ۉٷ‬უྺ3.0 VईDVDD + 0.3 VLjᅜড‫گ‬ኁྺጚă VREF+๼෇‫ڦ‬ਨ‫ܔ‬ፌ‫ۉٷ‬უྺ6.0 VईAVDD4 + 0.3 VLjᅜড‫گ‬ኁྺጚă ߛ‫ٳ‬200 mA‫ڦ‬ຨༀ‫ୁۉ‬փࣷሰ‫ׯ‬SCRឋ໮ă Rev. A | Page 8 of 36 ESD(ৢ‫ߌ௺)ۉݣۉ‬ഗॲă ‫ۉټ‬ഗॲࢅ‫ۉ‬ୟӱ੗ీࣷሞுᆶִਥ‫ڦ‬൧઄ူ‫ۉݣ‬ă ৑࠶Ԩׂ೗ਏᆶጆ૧ईጆᆶԍࢺ‫ۉ‬ୟLj‫ڍ‬ሞᇜ‫ీߛڟ‬ ଉESD้Ljഗॲ੗ీࣷ໦࣋ăᅺُLjᆌ‫֑ړ‬ൽ๢‫ڦړ‬ ESD‫ٯݔݞ‬แLjᅜՆ௨ഗॲႠీူইईࠀీෟ฿ă AD7760 64 63 62 61 60 59 58 DB11 DB9 DB10 DB8 DGND DB7 DB6 DB5 DB4 DB3 DB1 DB2 DB0 VDRIVE DGND DGND ᆅগದዃࢅࠀీ௮ຎ 57 56 55 54 53 52 51 50 49 DGND 1 48 DB12 47 DB13 MCLK 3 46 DB14 AVDD2 4 45 DB15 AGND2 5 44 VDRIVE AVDD1 6 43 DGND 42 DGND 41 DVDD 40 CS VREF+ 10 39 RD/WR AGND4 11 38 DRDY AVDD4 12 37 RESET AGND2 13 36 SYNC AVDD2 14 35 DGND AVDD2 15 34 AGND1 AGND2 16 33 AVDD1 PIN 1 MCLKGND 2 AGND1 7 AD7760 DECAPA 8 TOP VIEW (Not to Scale) REFGND 9 04975-005 AGND3 AGND3 DECAPB AGND3 AGND2 AVDD2 VIN– VIN+ AVDD3 AGND3 VOUTA+ VINA– VOUTA– VINA+ RBIAS AGND2 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 ཮4. 64ᆅগTQFPᆅগದዃ ՗5. ᆅগࠀీ௮ຎ ᆅগՊࡽ 6, 33 ᆅগఁ‫!׬‬ AVDD1 ௮ຎ 4, 14, 15, 27 AVDD2 5 V‫ۉ‬ᇸăኄၵᆅগᆌඁ᳘዁AGND2)ᆅগ5ࢅᆅগ13Ljཚࡗᆅগ4Ăᆅগ14ࢅᆅগ15ฉ‫ڦ‬100 nF‫ۉ‬ඹ*ă ᆅগ27ᆌཚࡗᅃ߲15 nH‫૶ߌۉ‬থ‫ڟ‬ᆅগ14ăၘ൧९ඁ᳘ࢅքਆॺᅱև‫ݴ‬ă 24 AVDD3 12 AVDD4 ֶ‫ٷݣݴ‬ഗ‫ڦ‬3.3 V዁5 V‫ۉ‬ᇸăُᆅগᆌཚࡗᅃ߲100 nF‫ۉ‬ඹඁ᳘዁AGND3)ᆅগ23*ăၘ൧९ඁ᳘ࢅք ਆॺᅱև‫ݴ‬ă एጚ‫ۉ‬უ࣐؋‫ڦ‬3.3 V዁5 V‫ۉ‬ᇸăُᆅগᆌཚࡗᇑ10 Ω‫ۉ‬ፆ‫ڦ૴ز‬10 nF‫ۉ‬ඹඁ᳘዁ᆅগ9ă 7, 34 5, 13, 16, 18, 28 23, 29, 31, 32 11 9 41 AGND1 AGND2 AGND3 AGND4 REFGND DVDD ᆯAVDD1ࠃ‫ڦۉ‬ఇె‫ۉ‬ୟ‫ۉڦ‬ᇸ‫ں‬ă ᆯAVDD2ࠃ‫ڦۉ‬ఇె‫ۉ‬ୟ‫ۉڦ‬ᇸ‫ں‬ă ᆯAVDD3ࠃ‫ڦۉ‬ఇె‫ۉ‬ୟ‫ۉڦ‬ᇸ‫ں‬ă ᆯAVDD4ࠃ‫ڦۉ‬ఇె‫ۉ‬ୟ‫ۉڦ‬ᇸ‫ں‬ă एጚ‫ۉ‬უ‫ں‬ăएጚ‫ۉ‬უ‫ڦ‬থ‫૶ں‬থă ຕጴ‫ۉ‬ୟࢅFIR୳հഗ‫ڦ‬2.5 V‫ۉ‬ᇸăُᆅগᆌཚࡗᅃ߲100 nF‫ۉ‬ඹඁ᳘዁DGNDă 44, 63 VDRIVE இड‫ۉ‬ᇸ๼෇Lj1.8 V዁2.5 Văኄၵᆅগ‫ۉڦ‬ᇸ‫ۉ‬უਦۨஇडথ੨‫߾ڦ‬ፕ‫ۉ‬უăኄଇ߲ᆅগՂႷ၎૶ ժ૶থ‫ڟ‬ཞᅃ‫ۉ‬ᇸă௅߲ᆅগ࣏ᆌཚࡗᅃ߲100 nF‫ۉ‬ඹඁ᳘዁DGNDă 1, 35, 42, 43, 53, 62, 64 19 20 21 22 25 26 10 DGND ຕጴ‫ۉ‬ୟ‫ڦ‬থ‫ں‬एጚă VINA+ VINA− VOUTA− VOUTA+ VIN+ VIN− VREF+ ֶ‫ٷݣݴ‬ഗ‫ڦ‬ኟ๼෇ă ֶ‫ٷݣݴ‬ഗ‫޶ڦ‬๼෇ă ֶ‫ٷݣݴ‬ഗ‫޶ڦ‬๼‫؜‬ă ֶ‫ٷݣݴ‬ഗ‫ڦ‬ኟ๼‫؜‬ă ۙ዆ഗ‫ڦ‬ኟ๼෇ă ۙ዆ഗ‫޶ڦ‬๼෇ă एጚ‫ۉ‬უ๼෇ăُᆅগ‫ڦ‬๼෇‫ྷݔ‬ᆯएጚ‫ۉ‬უ࣐؋‫ۉڦ‬ᇸ‫ۉ‬უ(AVDD4)ਦۨă ၘ൧९एጚ‫ۉ‬უ୳հև‫ݴ‬ă 8 DECAPA ඁ᳘ᆅগăՂႷሞُᆅগᇑAGNDኮक़֭෇ᅃ߲100 nF‫ۉ‬ඹă ۙ዆ഗ‫ڦ‬2.5 V‫ۉ‬ᇸăኄၵᆅগᆌཚࡗഄฉ‫ڦ‬100 nFࢅ10 μF‫ۉ‬ඹඁ᳘዁AGND1(‫ݴ‬՚ྺᆅগ7ࢅᆅগ34)ă ၘ൧९ඁ᳘ࢅքਆॺᅱև‫ݴ‬ă Rev. A | Page 9 of 36 AD7760 ᆅগՊࡽ 30 17 ᆅগఁ‫!׬‬ DECAPB RBIAS ௮ຎ 45 to 52, 54 to 61 DB15:DB8, DB7:DB0 16࿋ມၠຕ਍ጺ၍ăኄၵ๟ᆯCSᆅগࢅRD/WRᆅগ੦዆‫ڦ‬ෙༀᆅগăኄၵᆅগ‫߾ڦ‬ፕ‫ۉ‬უᆯVDRIVE‫ۉ‬ უਦۨăၘ൧९ۙ዆ഗຕ਍๼‫؜‬ఇ๕ࢅAD7760থ੨և‫ݴ‬ă 37 RESET 3 MCLK 2 36 MCLKGND SYNC 39 RD/WR ُᆅগ‫ူڦ‬ইᄂ๑໯ᆶాևຕጴ‫ۉ‬ୟް࿋Ljժ๑ഗॲ৊෇ู‫ۉ‬ఇ๕ăසࡕُᆅগԍ‫ۉگ׼‬ೝLj AD7760ॽᅃ኱‫ت‬ᇀް࿋ጒༀă ዷ้ዓ๼෇ăՂႷॽᅃ߲‫گ‬۶‫ۯ‬Ă࣐؋ຕጴ้ዓแेᇀُᆅগă๼‫؜‬ຕ਍໏୲ൽਦᇀُ้ዓ‫ڦ‬ೕ ୲ăၘ൧९AD7760้ዓᄲ൱և‫ݴ‬ă ዷ้ዓথ‫ں‬ॠ֪ᆅগă ཞօ๼෇ăُᆅগ‫ူڦ‬ইᄂ๑ాև୳հഗް࿋ă໲੗ᅜᆩઠཞօဣཥዐ‫߲ܠڦ‬ഗॲăၘ൧९ཞօև ‫ݴ‬ă ‫܁‬/ႀ๼෇ăُᆅগᇑೌ჋ᆅগದࢇ๑ᆩLjᆩᇀ‫܁‬ႀAD7760ຕ਍ă‫ړ‬CSྺ‫ۉگ‬ೝ้Ljසࡕُᆅগྺ‫گ‬ ‫ۉ‬ೝLjሶ݀ิ‫֡܁‬ፕă‫ړ‬CSྺ‫ۉگ‬ೝ้Ljසࡕُᆅগྺߛ‫ۉ‬ೝLjሶ݀ิႀ֡ፕăၘ൧९ۙ዆ഗຕ਍ ๼‫؜‬ఇ๕ࢅAD7760থ੨և‫ݴ‬ă 38 DRDY 40 CS ඁ᳘ᆅগăՂႷሞُᆅগᇑAGND3ኮक़֭෇ᅃ߲33 pF‫ۉ‬ඹă ೋዃ‫ୁۉ‬ยዃᆅগăՂႷሞُᆅগᇑAGNDኮक़֭෇ᅃ߲‫ۉ‬ፆăၘ൧९ೋዃ‫ۉ‬ፆ჋ስև‫ݴ‬ă ຕ਍৽Ⴣ๼‫؜‬ă௅ْᆶႎገ࣑ຕ਍੗ᆩ้LjُᆅগฉՍׂࣷิᅃ߲½ ICLKዜ೺੻‫ۉگڦ‬ೝᆶၳஞ؋ă ၘ൧९ۙ዆ഗຕ਍๼‫؜‬ఇ๕ࢅAD7760থ੨և‫ݴ‬ă ჋๼෇ăُᆅগᇑRD/WRᆅগದࢇ๑ᆩLjᆩᇀ‫܁‬ႀAD7760ຕ਍ăၘ൧९ۙ዆ഗຕ਍๼‫؜‬ఇ๕ࢅ AD7760থ੨և‫ݴ‬ă Rev. A | Page 10 of 36 AD7760 ຍᇕ ႑ሯԲ(SNR) ओ‫ݥݴ‬၍Ⴀ(INL) SNRኸํा๼෇႑ࡽ‫ڦ‬਩‫ߵݛ‬ኵᇑలઊຯ༬ೕ୲ᅜူ‫أ‬ၿ հࢅ኱ୁᅜྔ໯ᆶഄ໲ೕ೷‫ڦݴׯ‬਩‫ࢅߵݛ‬ኮԲLjᆩ‫ݴ‬Ԟ (dB)՗๖ă INLኸADC‫ࡧڿد‬ຕᇑᅃཉཚࡗADC‫ࡧڿد‬ຕ‫ڦۅ܋‬኱၍ ‫ڦ‬ፌ‫ٷ‬ೋֶă ጺၿհ฿ኈ(THD) THDኸ໯ᆶၿհ਩‫ࢅߵݛ‬ᇑएհ‫ڦ‬Բኵă‫ܔ‬ᇀAD7760Lj ഄۨᅭྺ DNLኸADCዐඪᅪଇ߲၎ତஓኮक़໯֪‫ڥ‬Վࣅኵᇑ૙ၙ‫ڦ‬ 1 LSBՎࣅኵኮक़‫ֶڦ‬ᅴă ྲ‫ݥݴ‬၍Ⴀ(DNL) ଭဃֶ ଭဃֶኸ૙ၙዐक़‫ۉ‬ೝ๼෇‫ۉ‬უ(‫ړ‬ଇ߲๼෇‫܌‬ୟ૶ሞᅃഐ ้)ᇑׂิዐक़‫ۉ‬ೝ๼‫؜‬ஓ‫ํڦ‬ा‫ۉ‬უኮֶă ഄዐǖ V1๟एհና‫ڦޗ‬਩‫ߵݛ‬ኵă V2、V3、V4、V5तV6๟ْܾ‫ْୃڟ‬ၿհና‫ڦޗ‬਩‫ߵݛ‬ኵă ଭဃֶ೏ᅎ ‫ݥ‬ၿհ࿮ሗො‫ۯ‬ༀ‫(ྷݔ‬SFDR) ሺᅮဃֶ SFDRኸ႑ࡽና‫ޗ‬਩‫ߵݛ‬ᇑ‫أ‬ၿհྔ‫ރڦ‬ኵሗොೕ೷‫ڦݴׯ‬ ਩‫ߵݛ‬ኵኮԲă ‫ړ‬ᅃ߲ఇె‫ۉ‬უߛᇀՔ‫޶׬‬஢ଉ‫ ½ײ‬LSB้Lj݀ิ‫ڼ‬ᅃ߲ ஓገ࣑(ٗ100 … 000‫ڟ‬100 … 001)ă‫ړ‬ᅃ߲ఇె‫ۉ‬უ‫گ‬ᇀՔ ‫׬‬஢ଉ‫ײ‬1½ LSB้Lj݀ิፌࢫᅃ߲ஓገ࣑(ٗ011 … 110‫ڟ‬ 011 … 111)ăሺᅮဃֶኸፌࢫᅃ߲ገ࣑‫ํڦ‬ा‫ۉ‬ೝᇑ‫ڼ‬ᅃ ߲ገ࣑‫ํڦ‬ा‫ۉ‬ೝኮֶᇑܾኁ‫ڦ‬૙ၙ‫ۉ‬ೝኮֶ‫ڦ‬ೋֶă ‫ۯ‬ༀ‫ྷݔ‬ ‫ۯ‬ༀ‫ྷݔ‬ኸ஢ଉ‫ڦײ‬਩‫ߵݛ‬ኵᇑ๼෇‫܌‬ୟ૶ሞᅃഐ้֪‫ڥ‬ ‫ڦ‬਩‫ߵݛ‬ሯำኮԲLjᆩ‫ݴ‬Ԟ(dB)՗๖ă ଭဃֶ೏ᅎኸ࿒‫܈‬Վࣅ1°C໯ᆅഐ‫ํڦ‬ाଭဃֶኵ‫ڦ‬Վ ࣅLjᆩ๪࿒้஢ଉ‫ڦײ‬ӥ‫ݴ‬Բ՗๖ă ሺᅮဃֶ೏ᅎ ঍ۙ฿ኈ(IMD) ‫ړ‬๼෇ᆯଇ߲ೕ୲‫ݴ‬՚ྺfaࢅfb‫ڦ‬ኟ၀հፇ‫้ׯ‬Ljඪࢆ‫ݥ‬ ၍Ⴀᆶᇸഗॲ‫ࣷۼ‬ᅜࢅᇑֶೕ୲mfa ± nfb)ഄዐm, n = 0, 1, 2, 3‫ڦ*ڪ‬ႚ๕ׂิ฿ኈׂ࿿ă঍ۙ฿ኈၜ‫ڦ‬mࢅn‫ۼ‬փ‫ڪ‬ᇀ 0ă૩සLjܾ঩ၜԈઔ(fa + fb)ࢅ(fa − fb)Ljܸෙ঩ၜԈઔ (2fa + fb)Ă(2fa − fb)Ă(fa + 2fb)ࢅ(fa − 2fb)ă ሺᅮဃֶ೏ᅎኸ࿒‫܈‬Վࣅ1°C໯ᆅഐ‫ํڦ‬ाሺᅮဃֶኵ‫ڦ‬ ՎࣅLjᆩ๪࿒้஢ଉ‫ڦײ‬ӥ‫ݴ‬Բ՗๖ă AD7760ঢ়ࡗCCIFՔጚ֪๬LjُՔጚ๑ᆩፌ‫ٷ‬๼෇‫޹੻ټ‬ ৎ‫ڦ‬ଇ߲๼෇ೕ୲ă ሞُ൧઄ူLjܾ঩ၜೕ୲ཚ‫׉‬ᇺ૗ፌ‫؛‬ኟ၀հLjܸෙ঩ၜ ೕ୲ཚ‫੍׉‬ৎ๼෇ೕ୲ăᅺُLjܾ঩ࢅෙ঩ၜႴ‫ݴ‬՚ኸ ۨă঍ۙ฿ኈߵ਍THD֖ຕઠऺ໙Lj໲๟߲՚฿ኈׂ࿿‫ڦ‬ ਩‫ࢅߵݛ‬ᇑएհࢅ‫ڦ‬ና‫ޗ‬਩‫ڦߵݛ‬ԲኵLjᆩ‫ݴ‬Ԟ(dB)՗ ๖ă Rev. A | Page 11 of 36 AD7760 ‫ۆ‬႙߾ፕ༬Ⴀ 0 –25 –25 –50 –50 –75 –100 –125 –75 –100 –125 –150 –150 –175 –175 –200 0 4000 8000 12000 16000 20000 –200 24000 04975-009 AMPLITUDE (dB) 0 04975-006 AMPLITUDE (dB) ‫ݥأ‬ଷᆶຫ௽LjAVDD1 = DVDD = VDRIVE = 2.5 VLjAVDD2 = AVDD3 = AVDD4 = 5 VLjVREF = 4.096 VLjTA = 25°CLjኟ‫׉‬ఇ๕ă໯ᆶFFT ਩๟૧ᆩ7঩Blackman-Harris‫ࡧش‬ຕٗ65,536߲ᄣԨዐׂิă 0 4000 ཮5. ኟ‫׉‬ఇ๕FFTLj1 kHzLj−0.5 dB๼෇Lj256×؏ൽ 24000 –50 AMPLITUDE (dB) –75 –100 –125 –75 –100 –125 –150 –150 –175 04975-007 –175 0 4000 8000 12000 16000 20000 04975-010 AMPLITUDE (dB) 20000 –25 –50 –200 0 24000 4000 ཮6. ኟ‫׉‬ఇ๕FFTLj1 kHzLj−6 dB๼෇Lj256×؏ൽ –25 –25 –50 –50 –75 –100 –125 –125 –175 04975-008 –175 16000 24000 –100 –150 12000 20000 –75 –150 8000 16000 20000 24000 04975-011 AMPLITUDE (dB) 0 4000 12000 ཮9. ‫ࡼࠀگ‬ఇ๕FFTLj1 kHzLj−6 dB๼෇Lj256×؏ൽ 0 0 8000 FREQUENCY (Hz) FREQUENCY (Hz) AMPLITUDE (dB) 16000 0 –25 –200 12000 ཮8. ‫ࡼࠀگ‬ఇ๕FFTLj1 kHzLj−0.5 dB๼෇Lj256×؏ൽ 0 –200 8000 FREQUENCY (Hz) FREQUENCY (Hz) –200 0 FREQUENCY (Hz) 4000 8000 12000 16000 20000 24000 FREQUENCY (Hz) ཮7. ኟ‫׉‬ఇ๕FFTLj1 kHzLj−60 dB๼෇Lj256×؏ൽ ཮10. ‫ࡼࠀگ‬ఇ๕FFTLj1 kHzLj−60 dB๼෇Lj256×؏ൽ Rev. A | Page 12 of 36 0 0 –25 –25 –50 –50 AMPLITUDE (dB) –75 –100 –125 –75 –100 –125 –150 04975-012 –150 –175 –200 0 250 500 750 1000 04975-015 AMPLITUDE (dB) AD7760 –175 –200 1250 0 250 750 1000 1250 ཮11. ኟ‫׉‬ఇ๕FFTLj100 kHzLj−0.5 dB๼෇Lj8×؏ൽ ཮14. ‫ࡼࠀگ‬ఇ๕FFTLj100 kHzLj−0.5 dB๼෇Lj8×؏ൽ 0 0 –25 –25 –50 –50 –75 –100 –125 –100 –125 0 250 500 750 FREQUENCY (kHz) 1000 04975-016 04975-013 –175 –200 –75 –150 –150 –175 –200 1250 0 250 500 750 1000 1250 FREQUENCY (kHz) ཮15. ‫ࡼࠀگ‬ఇ๕FFTLj100 kHzLj−6 dB๼෇Lj8×؏ൽ 0 0 –25 –25 –50 –50 AMPLITUDE (dB) ཮12. ኟ‫׉‬ఇ๕FFTLj100 kHzLj−6 dB๼෇Lj8×؏ൽ –75 –100 –125 –150 –100 –125 0 250 500 750 1000 04975-017 –175 –200 –75 –150 04975-014 AMPLITUDE (dB) 500 FREQUENCY (kHz) AMPLITUDE (dB) AMPLITUDE (dB) FREQUENCY (kHz) –175 –200 1250 FREQUENCY (kHz) 0 250 500 750 1000 1250 FREQUENCY (kHz) ཮13. ኟ‫׉‬ఇ๕FFTLj1 MHzLj−0.5 dB๼෇Lj8×؏ൽ ཮16. ‫ࡼࠀگ‬ఇ๕FFTLj1 MHzLj−0.5 dB๼෇Lj8×؏ൽ Rev. A | Page 13 of 36 0 –25 –25 –50 –50 –75 –100 –125 –75 –100 –125 –150 –150 –175 –175 –200 0 250 500 750 1000 –200 1250 04975-021 AMPLITUDE (dB) 0 04975-018 AMPLITUDE (dB) AD7760 0 250 FREQUENCY (kHz) ཮17. ኟ‫׉‬ఇ๕FFTLj1 MHzLj−6 dB๼෇Lj8×؏ൽ –75 –100 –125 –75 –100 –125 –150 –150 –175 –175 0 250 500 750 1000 –200 1250 04975-022 AMPLITUDE (dB) –50 04975-019 AMPLITUDE (dB) 1250 TONE A: 999.75kHz TONE B: 1.00025MHz –25 –50 0 250 FREQUENCY (kHz) 500 750 1000 1250 FREQUENCY (kHz) ཮18. ኟ‫׉‬ఇ๕IMDLj1 MHzዐ႐ೕ୲Lj8×؏ൽ ཮21. ‫ࡼࠀگ‬ఇ๕IMDLj1 MHzዐ႐ೕ୲Lj8×؏ൽ 0 0 TONE A: 999.75kHz TONE B: 1.00025MHz SECOND-ORDER IMD: –105.6dB –20 TONE A: 999.75kHz TONE B: 1.00025MHz SECOND-ORDER IMD: –115.7dB –20 –40 –60 –80 –100 –60 –80 –100 –120 –140 –140 04975-020 –120 0 2000 4000 6000 8000 –160 10000 FREQUENCY (kHz) 04975-023 AMPLITUDE (dB) –40 AMPLITUDE (dB) 1000 0 TONE A: 999.75kHz TONE B: 1.00025MHz –25 –160 750 ཮20. ‫ࡼࠀگ‬ఇ๕FFTLj1 MHzLj−6 dB๼෇Lj8×؏ൽ 0 –200 500 FREQUENCY (kHz) 0 2000 4000 6000 8000 10000 FREQUENCY (kHz) ཮19. ኟ‫׉‬ఇ๕IMDLj1 MHzዐ႐ೕ୲Lj8×؏ൽ ཮22. ‫ࡼࠀگ‬ఇ๕IMDLj1 MHzዐ႐ೕ୲Lj8×؏ൽ Rev. A | Page 14 of 36 AD7760 0 0 –80 –100 –60 –80 –100 –120 –120 –140 –140 997 999 1001 1003 –160 995 1005 04975-027 AMPLITUDE (dB) –40 –60 –160 995 TONE A: 999.75kHz TONE B: 1.00025MHz THIRD-ORDER IMD: –87.67dB –20 04975-024 AMPLITUDE (dB) TONE A: 999.75kHz TONE B: 1.00025MHz –20 THIRD-ORDER IMD: –89.15dB –40 997 999 FREQUENCY (kHz) 1001 1003 1005 FREQUENCY (kHz) ཮23. ኟ‫׉‬ఇ๕IMDLj1 MHzዐ႐ೕ୲Lj8×؏ൽ ཮26. ኟ‫׉‬ఇ๕IMDLj1 MHzዐ႐ೕ୲Lj8×؏ൽ 100.5 –105 NORMAL MODE 100.0 –107 NORMAL MODE –109 99.0 THD (dBc) SNR (dBFS) 99.5 98.5 98.0 –111 –113 LOW POWER MODE LOW POWER MODE 97.5 04975-025 96.5 0 10 20 30 –117 40 04975-028 –115 97.0 0 10 MCLK FREQUENCY (MHz) 20 30 40 MCLK FREQUENCY (MHz) ཮24. SNRᇑMCLKೕ୲‫࠲ڦ‬ဣLj8×؏ൽLj−6 dBLj1 kHz๼෇ ཮27. THDᇑMCLKೕ୲‫࠲ڦ‬ဣLj8×؏ൽLj−6 dBLj1 kHz๼෇ 120 116 –60dB –60dB –6dB 115 112 –6dB SNR (dBFS) 105 95 –0.5dB 108 104 100 0 64 128 192 96 256 DECIMATION RATE 04975-029 100 04975-026 SNR (dBFS) –0.5dB 110 0 64 128 192 256 DECIMATION RATE ཮25. ኟ‫׉‬ఇ๕SNRᇑ؏ൽ୲‫࠲ڦ‬ဣLj1 kHz๼෇ ཮28. ‫ࡼࠀگ‬ఇ๕SNRᇑ؏ൽ୲‫࠲ڦ‬ဣLj1 kHz๼෇ Rev. A | Page 15 of 36 AD7760 4500 3000 4000 2500 3000 OCCURRENCE OCCURRENCE 3500 2500 2000 2000 1500 1000 1500 1000 0 8385222 8385238 8385254 0 8383530 83835246 8383562 8385270 24-BIT CODE 04975-032 04975-030 500 500 8383578 8383594 8383610 24-BIT CODE ཮29. ኟ‫׉‬ఇ๕Lj24࿋኱‫཮ݛ‬Lj256×؏ൽ ཮32. ‫ࡼࠀگ‬ఇ๕Lj24࿋኱‫཮ݛ‬Lj256×؏ൽ 600 450 400 500 400 OCCURRENCE OCCURRENCE 350 300 200 300 250 200 150 100 8385116 8385216 8385316 8385416 04975-033 0 8385016 04975-031 100 50 0 8383236 8385516 8383386 24-BIT CODE 8383536 8383686 8383836 24-BIT CODE ཮30. ኟ‫׉‬ఇ๕Lj24࿋኱‫཮ݛ‬Lj8×؏ൽ ཮33. ‫ࡼࠀگ‬ఇ๕Lj24࿋኱‫཮ݛ‬Lj8×؏ൽ 0.0010 0.0015 +85°C +85°C 0.0010 0.0005 +25°C INL (%) INL (%) 0.0005 0 +25°C 0 –40°C –0.0005 –40°C 0 4194304 8388608 12582912 16777216 –0.0010 24-BIT CODE 04975-036 –0.0010 04975-034 –0.0005 0 4194304 8388608 12582912 24-BIT CODE ཮31. 24࿋INLLjኟ‫׉‬ఇ๕ ཮34. 24࿋INLLj‫ࡼࠀگ‬ఇ๕ Rev. A | Page 16 of 36 16777216 AD7760 0.6 50 45 0.4 40 35 DIDD (mA) 0 –0.2 25 20 15 10 04975-035 –0.4 –0.6 30 0 4194304 8388608 5 0 16777216 12582912 04975-059 DNL (LSB) 0.2 24-BIT CODE 0 2 4 6 8 10 12 14 ICLK FREQUENCY (MHz) 16 18 20 ཮35. 24࿋DNL ཮38. ؏ൽ× 32LjDIDD ᇑICLKೕ୲‫࠲ڦ‬ဣ(DVDD = 2.5 V) 45 40 40 35 35 30 DIDD (mA) 20 15 20 15 10 5 5 04975-057 10 0 0 2 4 6 8 10 12 14 ICLK FREQUENCY (MHz) 16 18 0 20 60 50 40 30 20 04975-058 10 0 0 2 4 6 8 10 12 14 ICLK FREQUENCY (MHz) 16 18 0 2 4 6 8 10 12 14 ICLK FREQUENCY (MHz) 16 18 20 ཮39. ؏ൽ× 256LjDIDD ᇑICLKೕ୲‫࠲ڦ‬ဣ(DVDD = 2.5 V) ཮36. AIDD 2ᇑICLKೕ୲‫࠲ڦ‬ဣ(AVDD 2 = 5 V) DIDD (mA) 25 04975-060 AIDD2 (mA) 30 25 20 ཮37. ؏ൽ× 8LjDIDD ᇑICLKೕ୲‫࠲ڦ‬ဣ(DVDD = 2.5 V) Rev. A | Page 17 of 36 AD7760 ߾ፕᇱ૙ ࡗ֑ᄣरຍ੗๑ଉࣅሯำકොሞٗ0‫ڟ‬fICLK‫ྷݔ੻ټ੻ڦ‬ ాăኄᄣLjణՔ႑ࡽೕ‫ټ‬ዐ໯ࡤ‫ڦ‬ሯำీଉ৽ࣷ३ၭ(९཮ 40a)ăྺ৊ᅃօই‫گ‬ణՔ႑ࡽೕ‫ټ‬ዐ‫ڦ‬ଉࣅሯำLj੗֑ᆩ ᅃ߲ߛ঩ۙ዆ഗ‫ܔ‬ሯำೕ೷৊ႜኝႚLjॽ‫ٷ‬և‫ݴ‬ሯำీଉ ᅎ‫؜‬႑ࡽೕ‫ټ‬ኮྔ(९཮40b)ă ՗6၂๖ఐණ୳հഗ‫ڦ‬ᅃၵ༬Ⴀă୳հഗ‫ڦ‬ඖჽ‫ۨ׿‬ᅭྺ ‫ڟ‬ஞ؋ၚᆌዐ႐‫ڦ‬ჽ‫׿‬Lj‫ڪ‬ᇀऺ໙ჽ‫׿‬ᇑ୳հഗჽ‫׿‬ኮ ࢅăᆶၳຕ਍੗ᆩ(DVALIDጒༀ࿋ዃ1)ኮമ‫ڦ‬ჽ‫ڪ׿‬ᇀ୳ հഗჽ‫ऺे׿‬໙ჽ‫ڦ׿‬ଇԠă a. QUANTIZATION NOISE ۙ዆ഗኮࢫ‫ڦ‬ຕጴ୳հഗၩ‫أ‬ড‫ྔټڦٷ‬ଉࣅሯำ(९཮ 40c)Ljཞ้ॽຕ਍໏୲ٗ୳հഗ๼෇‫ڦ܋‬fICLKই዁୳հഗ๼ ‫ڦ܋؜‬fICLK/8ई߸‫گ‬Ljਏ༹ൽਦᇀ໯ᆩ‫؏ڦ‬ൽ୲ă fICLK\2 BAND OF INTEREST b. ᇑఇె୳հ၎ԲLjຕጴ୳հᆶᅃۨ‫ڦ‬ᆫ๞ǖ໲փࣷᆅ෇௽ ၂‫ڦ‬ሯำई฿ኈLjܸ൐໲੗ᅜᇑ၎࿋‫װ‬৛ඓ၍Ⴀ࠲ဣă NOISE SHAPING AD7760֑ᆩෙ߲‫૴ز‬FIR୳հഗă؏ൽԲĂ୳հഗ჋ስࢅ ಖୟᆶႹ‫ܠ‬փཞፇࢇLjᅺُAD7760ీᅜႹ‫ܠ‬փཞ‫ڦ‬ຕ਍໏ ୲๼‫؜‬ຕ਍ă੗ᅜICLK໏୲इ‫ۙڥ‬዆ഗ‫ܠڦ‬࿋ຕ਍(९“ۙ ዆ഗຕ਍๼‫؜‬ఇ๕”և‫)ݴ‬ă‫ڼ‬ᅃ߲୳հഗᅜ20 MHz‫ڦ‬ፌ‫ٷ‬ ೕ୲থ๭ۙ዆ഗຕ਍Lj඗ࢫ৊ႜ1/4؏ൽLjᅜ5 MHzೕ୲๼ ‫؜‬ຕ਍ă੗ᅜሞُप๼‫؜‬և‫୳ݴ‬հຕ਍ă‫୳߲ܾڼ‬հഗ༵ ࠃ2×዁32×‫ڦ‬੗჋؏ൽ୲Ljᄺ੗ᅜॽഄྜඇಖୟă fICLK\2 BAND OF INTEREST c. DIGITAL FILTER CUTOFF FREQUENCY fICLK\2 BAND OF INTEREST 04975-037 AD7760֑ᆩΣ-Δገ࣑रຍॽఇె๼෇ገ࣑ྺ‫ڪ‬ၳຕጴጴă ۙ዆ഗ‫ܔ‬๼෇հႚ৊ႜ֑ᄣLjժᅜᇑICLK၎‫ڦڪ‬໏୲ၠຕ ጴ୳հഗ๼‫ڪ؜‬ၳຕጴጴă ཮40. Σ-Δ႙ADC ‫ڼ‬ෙ߲୳հഗ༵ࠃ2×‫؏ۨࠦڦ‬ൽ୲Lj໲๟ᆩࢽ੗Պ‫ڦײ‬Lj ժ༵ࠃఐණದዃLjၘ൧९“੗Պ‫ײ‬FIR୳հഗ”և‫ݴ‬ăُ୳հ ഗᄺ੗ᅜಖୟă ՗6. ఐණ୳հഗದዃ ICLKೕ୲ 20 MHz 20 MHz 20 MHz 20 MHz 20 MHz 20 MHz 20 MHz 20 MHz 20 MHz 20 MHz 20 MHz 20 MHz 20 MHz 12.288 MHz 12.288 MHz 12.288 MHz 12.288 MHz ୳հഗ1 ಖୟ 4× 4× 4× 4× 4× 4× 4× 4× 4× 4× 4× 4× 4× 4× 4× 4× ୳հഗ2 ಖୟ ಖୟ ಖୟ 2× 2× 4× 4× 8x 8× 16× 16× 32× 32× 8× 16× 32× 32× ୳հഗ3 ಖୟ ಖୟ 2× ಖୟ 2× ಖୟ 2× ಖୟ 2× ಖୟ 2× ಖୟ 2× 2× 2× ಖୟ 2× ຕ਍ጒༀ ࿄୳հ և‫୳ݴ‬հ ྜඇ୳հ և‫୳ݴ‬հ ྜඇ୳հ և‫୳ݴ‬հ ྜඇ୳հ և‫୳ݴ‬հ ྜඇ୳հ և‫୳ݴ‬հ ྜඇ୳հ և‫୳ݴ‬հ ྜඇ୳հ ྜඇ୳հ ྜඇ୳հ և‫୳ݴ‬հ ྜඇ୳հ ऺ໙ჽ‫׿‬ 0 0.325 μs 1.075 μs 1.35 μs 1.625 μs 1.725 μs 1.775 μs 2.6 μs 2.25 μs 4.175 μs 3.1 μs 7.325 μs 4.65 μs 3.66 μs 5.05 μs 11.92 μs 7.57 μs Rev. A | Page 18 of 36 ୳հഗჽ‫׿‬ 0 1.2 μs 10.8 μs 3.6 μs 22.8 μs 6 μs 44.4 μs 10.8 μs 87.6 μs 20.4 μs 174 μs 39.6 μs 346.8 μs 142.6 μs 283.2 μs 64.45 μs 564.5 μs ཚ‫੻ټټ‬ 10 MHz 1.35 MHz 1 MHz 562.5 kHz 500 kHz 281.25 kHz 250 kHz 140.625 kHz 125 kHz 70.3125 kHz 62.5 kHz 35.156 kHz 31.25 kHz 76.8 kHz 38.4 kHz 21.6 kHz 19.2 kHz ๼‫؜‬ຕ਍໏୲ (ODR) 20 MHz 5 MHz 2.5 MHz 2.5 MHz 1.25 MHz 1.25 MHz 625 kHz 625 kHz 312.5 kHz 312.5 kHz 156.25 kHz 156.25 kHz 78.125 kHz 192 kHz 96 kHz 96 kHz 48 kHz AD7760 ۙ዆ഗຕ਍๼‫؜‬ఇ๕ ස“߾ፕᇱ૙”և‫ݴ‬໯ຎLjAD7760૧ᆩࡗ֑ᄣरຍॽଉࣅሯ ำકොሞ੻‫ాྷݔ੻ټ‬ăᆯُ‫ڞ‬ዂ႑ࡽೕ‫ټ‬ዐ‫ڦ‬ଉࣅሯำ ీଉই‫گ‬൧઄ස཮40a໯๖ă঳ࢇࡗ֑ᄣरຍࢅߛ঩‫ܠ‬࿋ Σ-Δۙ዆ഗLjAD7760‫ڥ‬ᅜ৊ᅃօই‫گ‬႑ࡽೕ‫ټ‬ዐ‫ڦ‬ଉࣅሯ ำă཮41ྺۙ዆ഗ๼‫؜‬ఇ๕ူAD7760࿄ঢ়୳հ‫ڦ‬ຕ਍๼‫؜‬ ‫ڦ‬FFTă໲ൣ‫ںؤ‬၂๖କAD7760‫ڦ‬Σ-Δۙ዆ഗኴႜଉࣅሯ ำኝႚ‫ڦ‬ၳࡕă ۙ዆ഗ๼෇ +4.096V 0011 1111 1111 1111 0011 0011 0011 0010 +3.275V = MODULATOR FULL SCALE = 80% OF +4.096V 1100 1100 1100 1100 ᆶ࠲AD7760ೌฉֶ‫ٷݣݴ‬ഗ໯ํ၄‫ڦ‬႑ࡽۙ૙ࠀీࢅᇑኮ ၎ದ‫ླྀڦ‬४ྔև‫ۉ‬ୟ‫ܠ߸ڦ‬႑တLj൩֖ለ“ൻ‫ۯ‬AD7760”և ‫ݴ‬ă 80% OF +4.096V = MODULATOR FULL SCALE = –3.275V –20 VIN+ = 3.5 V VIN− = 0.595 V ۙ዆ഗ๼‫؜‬ஓ –50 –60 = ([VIN(+) − VIN(−)]/4.096 V) × 16384 = [(3.5 V − 0.595 V)/4.096 V] × 16384 = +11620 ኱থۙኝǖ [0010 1101 0110 0100] ຕ਍๼‫؜‬ᆅগD[15:0]ฉ‫ڦ‬ኵ๼‫؜‬ǖ D [15:0] = [0010 1101 0110 0000]. –70 –80 –90 –100 –110 –120 0 1 2 3 4 5 6 7 8 9 FREQUENCY (MHz) 10 04975-048 –130 –140 –150 –160 –4.096V ۙ዆ഗ๼‫ڦ؜‬༬ႠᇑAD7760‫ྜڦ‬ඇ୳հ๼‫؜‬ᆶᅃۨ‫࠲ڦ‬ဣ )ᅺྺۙ዆ഗ๼‫؜‬٪ሞ၎࠲‫ڦ‬ଉࣅሯำ*Ljሞۙ዆ഗຕ਍๼ ‫؜‬ఇ๕ူ߾ፕ้Ljۙ዆ഗ๼‫ڦ؜‬࿋D[3:0]਩ྺ0ăᅺُLjኍ ‫ۙܔ‬዆ഗᆅগVIN+ࢅVIN−‫ڦ‬๼෇Lj๖૩1ࢅ๖૩2ዐऺ໙ ໯‫ڦڥ‬ຕ਍๼‫؜‬၂๖ۙ዆ഗ๼‫ڦ؜‬࿋D[3:0]਩ྺ0ă ๖૩1 –40 VIN+ = 0.4105V VIN– = 3.6855V ཮42. ۙ዆ഗ๼‫؜‬ຕ਍ۙኝ 0 –10 –30 VIN+ = 3.6855V VIN– = 0.4105V VIN+ = 2.048V VIN– = 2.048V 0000 0000 0000 0000 1100 0000 0000 0000 ֶ߳‫ۙݴ‬዆ഗ๼෇ᆅগ‫ڦ‬ፌ‫ٷ‬๼෇‫ۉ‬უྺ0.8 × 4.096 V ≈ 3.275 V (V REF ‫ڦ‬80%)Lj໲ՂႷਏᆶVREF/2‫ࠌڦ‬ఇ‫ۉ‬უăሞ“ൻ‫ۯ‬ AD7760”և ‫ ཮ ڦ ݴ‬52ዐ Lj ُ ፌ ‫ ݴ ֶ ٷ‬๼ ෇ ‫ ۉ‬უ ၂ ๖ ྺ AD7760ೌฉֶ‫ٷݣݴ‬ഗ‫ۙڦ‬૙๼‫؜‬ă AMPLITUDE (dB) D[15:0] ཮41. ۙ዆ഗ๼‫؜‬ఇ๕ူAD7760ຕ਍๼‫ڦ؜‬FFT ۙ዆ഗຕ਍๼‫ۙ؜‬ኝ ሞۙ዆ഗ๼‫؜‬ఇ๕ူLjຕ਍ᅜ16࿋ܾ৊዆ցஓ߭๕ཚࡗᆅ গD[15:0]๼‫؜‬ăփࡗLjُຕ਍ԥۙኝ‫ڟ‬15࿋ă཮42ዐ‫دڦ‬ ‫ࡧڿ‬ຕ၂๖କۙ዆ഗᆅগD[15:0]‫ڦ‬16࿋ຕ਍๼‫؜‬໯ภत‫ڦ‬ ۙኝᇑۙ዆ഗ๼෇ඹႹ‫ڦ‬ፌ‫ݴֶٷ‬๼෇‫ۉ‬უ)VIN+ࢅVIN−Dž ‫࠲ڦ‬ဣă 04975-049 ‫ړ‬AD7760ᅜۙ዆ഗ๼‫؜‬ఇ๕߾ፕ้Ljຕ਍੗ᅜ኱থٗΣ-Δ ۙ዆ഗ๼‫؜‬ăኄዖ߾ፕఇ๕੗ಖୟAD7760‫ೌڦ‬ฉຕጴ୳հ և‫ݴ‬Ljᅜ࿄ঢ়୳հ‫ڦ‬ႚ๕๼‫؜‬ຕ਍ă ๖૩2 VIN+ = 0.595 V VIN− = 3.5 V ۙ዆ഗ๼‫؜‬ஓ = ([VIN(+) − VIN(−)]/4.096 V) × 16384 = [(0.595 V − 3.5 V)/4.096 V] × 16384 = −11620 ኱থۙኝǖ [1101 0010 1001 1100] ຕ਍๼‫؜‬ᆅগD[15:0]ฉ‫ڦ‬ኵ๼‫؜‬ǖ D [15:0] = [1101 0010 1001 0000]. Rev. A | Page 19 of 36 AD7760 ۙ዆ഗຕ਍๼‫؜‬ఇ๕থ੨ ॽ0ႀ෇੦዆स٪ഗ1ዐ‫ڦ‬ᅜူ߳࿋ǖCZQ!G2 ĂCZQ!G4 ࢅ DEC [2:0]Lj੗ᅜॽAD7760ದዃྺۙ዆ഗຕ਍๼‫؜‬ఇ๕)ಖ ୟఐණ؏ൽ୳հ*ăኄॽಖୟAD7760໯༵ࠃ‫ڦ‬ඇևຕጴ؏ ൽ୳հăၘ൧९“AD7760स٪ഗ”և‫ݴ‬ă ူ‫܁‬ൽຕ਍‫้ڦ‬Ⴞ཮ăኍ‫ܔ‬௅߲ጴ‫ิׂࣷۼ‬ᅃ߲CDIVஞ ؋ă16߲ຕ਍๼‫؜‬ᆅগD [15:0]߳ጲฉ‫ڦ‬ຕ਍ሞDRDYஞ؋ ‫ڦ‬ฉืᄂᆶၳă੗ᅜ૧ᆩDRDYஞ؋ॽۙ዆ഗຕ਍໮٪዁ FIFOዐई໮٪ྺDMA੦዆႑ࡽăRD/WRࢅCS၍࣮‫ۉߛڟ‬ ೝࢫփ৳LjAD7760नཕኹ๼‫؜‬ຕ਍Ljຕ਍ጺ၍࣬ްߛፆ ༀă ‫ړ‬AD7760ሞۙ዆ഗຕ਍๼‫؜‬ఇ๕ူ߾ፕ้LjՂႷ๑ᆩᇑഄ ୳հຕ਍๼‫؜‬ದዃփཞ‫ڦ‬ժႜথ੨‫ݛ‬ӄă ้ዓ2‫ݴ‬ೕఇ๕(CDIV= 0) ຕ਍๼‫؜‬໏୲ൽਦᇀ໯ᆩ‫้ڦ‬ዓ‫ݴ‬ೕԲă‫ړ‬੦዆स٪ഗ2 ዐ‫ڦ‬CDIV࿋ยྺஇडߛ‫ۉ‬ೝ้Ljຕ਍ᅜMCLKೕ୲๼‫؜‬ă ‫ړ‬CDIV࿋ยྺஇड‫ۉگ‬ೝ้Ljຕ਍ᅜMCLK/2‫ڦ‬ೕ୲๼ ‫؜‬ă߸‫ܠ‬႑တ९“AD7760้ዓᄲ൱”և‫ݴ‬ă ሞۙ዆ഗ๼‫؜‬ఇ๕ူ߾ፕ൐CDIV= 0)नICLK = MCLK/2* ้Lj໯ׂิ‫ڦ‬DRDY႑ࡽೕ୲ྺ๼෇ഗॲ‫ڦ‬MCLKೕ୲‫ڦ‬ᅃ ӷăCDIV = 0 ้໯ᆩ‫้ڦ‬Ⴞ‫ݛ‬ӄൽਦᇀRESETᇑSYNCኮक़ ‫ڦ‬MCLKዜ೺ຕăසࡕRESETฉืᄂᇑSYNGฉืᄂኮक़‫ڦ‬ MCLKዜ೺ຕ(n)ྺ౾ຕ)९཮44*Ljሶ๑ᆩ཮43໯๖‫ڦ‬থ੨้ ႾăසࡕnྺആຕLjሶ๑ᆩ཮45໯๖‫ڦ‬থ੨้Ⴞă ้ዓ1‫ݴ‬ೕఇ๕(CDIV= 1) ሞۙ዆ഗ๼‫؜‬ఇ๕ူٗAD7760इ‫ڥ‬ຕ਍้LjRD/WRࢅCS ၍਩ՂႷԍ‫ۉگ׼‬ೝăኄॽ๑ຕ਍ጺ၍ྃ૗ߛፆༀă཮43 ၂๖CDIV = 1)नCLK = MCLK*้Ljሞۙ዆ഗຕ਍๼‫؜‬ఇ๕ t9 t10 DRDY t13 D[0:15] t14 t12 t11 INVALID DATA MOD DATA M MOD DATA M + 1 MOD D... 04975-050 CS, RD/WR ཮43. AD7760ۙ዆ഗ๼‫؜‬ఇ๕(CDIV = 1)൐DŽCDIV= 0Ljnྺ౾ຕDž RESET MCLK 04975-051 n × tMCLK SYNC ཮44. AD7760ሞۙ዆ഗ๼‫؜‬ఇ๕ူ൐CDIV= 0้LjRESETᇑSYNCኮक़‫ڦ‬၎‫้ܔ‬Ⴞ Rev. A | Page 20 of 36 AD7760 t9 t10 DRDY t20 D[0:15] INVALID DATA MOD DATA M MOD DATA M + 1 MOD D... t19 MCLK t14 04975-052 t11 CS, RD/WR ཮45. AD7760ۙ዆ഗ๼‫؜‬ఇ๕DŽCDIV= 0LjnྺആຕDž ‫ړ‬MCLKዜ೺ຕnྺആຕ้LjᆅগD[15:0]ฉ‫ۙڦ‬዆ഗຕ਍ሞ DRDYฉืᄂ๼‫؜‬ăኄዖ൧઄ူLjᆌሞDRDYྺஇड‫ۉگ‬ೝ ้ሞMCLKူইᄂ‫܁‬ൽຕ਍ă཮45၂๖କCDIV= 0൐ RESET ฉืᄂᇑSYNCฉืᄂኮक़‫ڦ‬MCLKዜ೺ຕྺആຕ้Lj‫܁‬ൽ ۙ዆ഗ๼‫؜‬ຕ਍໯ᆌ๑ᆩ‫้ڦ‬Ⴞ႑တăኄၵཉॲူᆌ๑ᆩ ‫ڦ‬MCLKᄂස཮45ዐ၎࠲MCLKူইᄂฉ‫ॱڦ‬ཀྵ໯๖ă AD7760֑ᆩۙ዆ഗ๼‫؜‬ఇ๕߾ፕ AD7760‫ڦ‬ฉ‫ࢅۉ‬๑ᆩॺᅱ֑ᆩසူ֡ፕႾଚǖ 1. แे‫ۉ‬ᇸă 2. ഔ‫้ۯ‬ዓና‫ږ‬ഗLjแेMCLKă 3. ๑RESETՎྺ‫ۉگ‬ೝLjԍ‫׼‬዁ณᅃ߲MCLKዜ೺ă 4. ሞRESETฉืᄂࢫ‫ځڪ‬዁ณଇ߲MCLKዜ೺ă 5. 6. 7. 8. ႀ෇੦዆स٪ഗ2Ljߵ਍Ⴔᄲ๑ADCࢅֶ‫ٷݣݴ‬ഗฉ ‫ۉ‬ăُ้ᆌยዃኟඓ‫้ڦ‬ዓ‫ݴ‬ೕԲ(CDIV)ă ႀ෇੦዆स٪ഗ1Ljॽಖୟस٪ഗ࿋BYP F1ࢅBYP F3ᅜ त؏ൽ୲࿋DEC[2:0]ዃ0ă ሞCSฉืᄂ๥‫ࢫݣ‬Lj‫ځڪ‬዁ณୃ߲MCLKዜ೺ă සࡕႴᄲLj๑SYNCՎྺ‫ۉگ‬ೝժԍ‫׼‬዁ณ຺߲MCLK ዜ೺LjᅜՍ๑‫߲ܠ‬ഗॲཞօă ๑ᆩُႾଚॽ‫ڞ‬ዂRESETฉืᄂᇑSYNCฉืᄂኮक़‫ڦ‬ MCLKዜ೺ຕྺ౾ຕăᅺُLjසࡕCDIV = 0Ljሶᆌํแ཮43 ໯๖‫ڦ‬থ੨้Ⴞă ൩ጀᅪLj‫ړ‬CDIV= 1้LjRESETฉืᄂᇑSYNCฉืᄂኮक़ ‫ڦ‬MCLKዜ೺ຕ‫ڦ‬ആ౾Ⴀ࿮࠲৆ᄲă ‫ړ‬AD7760ሞۙ዆ഗ๼‫؜‬ఇ๕ူ߾ፕ้Lj฿ۙĂሺᅮࢅ‫ג‬ଉ ‫ײ‬स٪ഗփ߾ፕă੗ᅜ๑ᆩ‫ڦ‬स٪ഗኻᆶ੦዆स٪ഗ1ࢅ੦ ዆स٪ഗ2ă Rev. A | Page 21 of 36 AD7760 AD7760থ੨ ‫܁‬ൽຕ਍ ‫ړ‬AD7760ᅜ5 MHzई߸‫ڦگ‬๼‫؜‬ຕ਍໏୲๼‫؜‬ຕ਍้Ljথ ੨ᅜ‫د‬ཥఇ๕߾ፕLjස཮2໯๖Lj๑ᆩ16࿋ມၠժႜথ੨ă ُথ੨ᆯRD/WRࢅCSᆅগ੦዆ă24࿋ገ࣑ຕ਍ᅜܾ৊዆ց ஓ߭๕๼‫؜‬ăᆶႎገ࣑঳ࡕ੗ᆩ้LjDRDYᆅগฉ๼‫؜‬ᅃ ߲‫ۉگ‬ೝᆶၳஞ؋ă ᄲٗAD7760‫܁‬ൽᅃ߲ገ࣑঳ࡕLjႷኴႜଇْ16࿋‫֡܁‬ፕă ஞ؋ኸ๖ᆶႎገ࣑঳ࡕ੗ᆩăRD/WRࢅCS਩Վྺ‫ۉگ‬ೝLj ᅜՍኴႜ‫ڼ‬ᅃْ‫֡܁‬ፕăሞኄଇཉ၍਩Վྺ‫ۉگ‬ೝࢫփ ৳Ljຕ਍ጺ၍ՎྺᆶၳጒༀLjժ๼‫؜‬ገ࣑঳ࡕ‫ڦ‬16߲ፌߛ ᆶၳ࿋(MSB)ă඗ࢫLjRD/WRࢅCS၍ՂႷ࣮‫ۉߛڟ‬ೝժԍ ‫׼‬ᅃ߲ྜኝICLKዜ೺Lj඗ࢫኴႜ‫֡܁ْܾڼ‬ፕă‫܁ْܾڼ‬ ֡ፕ๼‫؜‬ገ࣑঳ࡕ‫ڦ‬8߲ፌ‫گ‬ᆶၳ࿋(LSB)ࢅ6߲ጒༀ࿋ăኄ ၵጒༀ࿋ଚᇀ՗7ă࠲ᇀഄ໲ጒༀ࿋‫ڦ‬௮ຎ९՗17ă ՗7. ຕ਍‫܁‬ൽ೺क़‫ڦ‬ጒༀ࿋ MSB D7 DVALID D6 OVR D5 UFILT D4 LPWR D3 FILTOK D2 DLOK D1 0 LSB D0 0 සࡕဣཥዐ٪ሞ‫߲ܠ‬ཞօAD7760ഗॲLjࠌၛᅃ߲๢‫ݴړ‬ք ‫ڦ‬MCLK႑ࡽLjሶኄၵഗॲ੗ᅜࠌၛᅃཉጺ၍Ljܸ࿮ႴԵ ُ߰૗ăኄཉጺ၍੗ᅜཚࡗ‫߲ڇ‬໮٪ഗई࣐؋ഗᇑဣཥጺ ၍߰૗ă ཞօ AD7760‫ڦ‬SYNC๼෇༵ࠃཞօࠀీLjሎႹᆩࢽٗᅃ߲ᅙኪ ้क़‫ۅ‬ਸ๔֑णఇెമ‫܋‬๼෇‫ڦ‬ᄣԨă ཚࡗSYNCࠀీLj֑ᆩ၎ཞMCLKĂRESETࢅSYNC႑ࡽ߾ ፕ‫߲ܠڦ‬AD7760੗ᅜཞօLjܸٗ߳ADCཞ้߸ႎഄ๼‫؜‬स ٪ഗăႴཞօ‫߳ڦ‬AD7760ഗॲ໯ࠌᆩ‫ڦ‬႑ࡽ‫ݴ‬ք‫ܔ‬ᇀඓԍ ߳ഗॲ้ႾኟඓLjन߳ഗॲཞօੂ‫ڟ‬၎ཞ‫ڦ‬ຕጴᄂLjਏᆶ टഄዘᄲ‫ڦ‬ᅪᅭă SYNC႑ࡽሞMCLK‫ူڦ‬ইᄂ৊ႜॠ֪ăሞSYNCՎྺஇड ‫ۉگ‬ೝࢫ‫ڼڦ‬ᅃ߲MCLKူইᄂLjຕጴ୳հഗႾଚް࿋ྺ 0ă୳հഗॽԍ‫ް׼‬࿋ጒༀLj኱‫ڟ‬ᅃ߲MCLKူইᄂॠ֪‫ڟ‬ SYNCஇडߛ‫ۉ‬ೝăSYNC႑ࡽՂႷԍ‫׼‬இड‫ۉگ‬ೝ዁ณ຺ ߲MCLKዜ೺ă཮46၂๖SYNC႑ࡽ၎‫ܔ‬ᇀMCLK‫ླྀڦ‬४้ Ⴞă DEVICE SYNCHRONIZED FROM THIS POINT IN TIME ‫܁‬ൽጒༀࢅഄ໲स٪ഗ AD7760ਏᆶ‫߲ܠ‬੗Պ‫ײ‬स٪ഗăැᄲ࣮‫܁‬ኄၵस٪ഗईጒ ༀस٪ഗ‫ాڦ‬ඹLjᆩࢽ๯ံՂႷႀ෇ഗॲ‫ڦ‬੦዆स٪ഗLj ยዃᄲ‫܁‬ൽस٪ഗ‫ܔڦ‬ᆌ࿋ăথူઠ‫֡܁ڦ‬ፕ๼‫؜‬໯჋स ٪ഗ‫ాڦ‬ඹLjܸփ๟ገ࣑঳ࡕăᆶ࠲੦዆स٪ഗዐ၎࠲࿋ ‫ܠ߸ڦ‬႑တLj൩֖ለ“AD7760स٪ഗ”և‫ݴ‬ă ࠌၛժႜጺ၍ AD7760‫ߛڦ‬৛‫܈‬༬Ⴀਦۨକ໲‫ྔܔ‬ևሯำᇸ࢔௺ߌLjഄዐ ৽Ԉઔժႜጺ၍ฉ‫ڦ‬ຕጴऄ‫ۯ‬ăᅺُLjॺᅱཚࡗ໮٪ഗई ࣐؋ഗLjॽAD7760ຕ਍၍ᇑဣཥຕ਍ጺ၍߰૗LjᅜඓԍD0 ዁D15ᆅগฉ‫ڦ‬໯ᆶຕጴऄ‫ۼۯ‬๴AD7760੦዆ă MCLK SYNC MIN SYNC LOGIC LOW 4 × tMCLK 04975-053 ሞRD/WRࢅCS࣮‫ۉߛڟ‬ೝࢫփ৳Ljຕ਍ጺ၍࣬ްߛፆༀă ଇْ‫֡܁‬ፕ਩ՂႷሞႎገ࣑঳ࡕ੗ᆩኮമྜ‫ׯ‬Ljᅺྺႎ঳ ࡕࣷޮ߃๼‫؜‬स٪ഗ‫ాڦ‬ඹăසࡕሞ‫֡܁‬ፕ೺क़‫؜‬၄ DRDYஞ؋Ljሶຕ਍‫܁‬ൽ࿮ၳă ཮46.SYNCླྀ४้Ⴞ SYNC‫ڦ‬ฉืᄂᆌᇑMCLK‫ڦ‬ฉืᄂዘࢇăኄᄣLjMCLK‫ڦ‬ ူᅃ߲ူইᄂॠ֪‫ڟ‬SYNCஇडߛ‫ۉ‬ೝLjժ๑୳հഗ૗ਸް ࿋ጒༀăॽُ႑ࡽ‫ݛ‬ӄᆌᆩᇀ๑ᆩ၎ཞMCLKࢅSYNC႑ࡽ ‫߲ܠڦ‬ADC้Lj໯ᆶഗॲ‫ॽۼ‬ཞօ֑ण๼෇ᄣԨă इ‫ڥ‬SYNC႑ࡽኮࢫLjຕጴ୳հഗႴᄲঢ়ࡗᅃۨ‫ॺڦ‬૬้क़ ኮࢫLj֍ీٗAD7760‫܁‬ൽᆶၳຕ਍ăໜ߳ገ࣑঳ࡕ๼‫ڦ؜‬ DVALIDጒༀ࿋)՗7ዐ‫ڦ‬D7*՗๖ገ࣑ഗࢆ้๼‫؜‬ᆶၳຕ ਍ăٗSYNCฉืᄂ‫ڟ‬DVALID࿋ዃ࿋‫้ڦ‬क़ൽਦᇀ໯ᆩ‫ڦ‬ ୳հഗದዃăᆶ࠲ऺ໙‫ڟ‬DVALIDዃ࿋໯Ⴔ้क़‫ၘڦ‬ဦ႑ တLj൩֖੊“߾ፕᇱ૙”և‫ࢅݴ‬՗6໯ଚ‫ڦ‬ኵă Rev. A | Page 22 of 36 AD7760 ႀ෇AD7760 ཚࡗႀ෇AD7760ഗॲLjᆩࢽ੗ᅜ߀ՎႹ‫ܠ‬༬Ⴀࢅ֖ຕă “๑ᆩAD7760”և‫ၘݴ‬ဦ௮ຎକ‫؛‬๔ࣅഗॲ໯Ⴔ‫ڦ‬ႀ෇Ⴞ ଚă AD7760‫ڦ‬੗Պ‫ײ‬स٪ഗྺ16࿋੻Ljኄᅪ࿆ጣ‫ܔ‬ᅃ߲स٪ഗ ৊ႜՊ‫ײ‬Ⴔᄲଇْႀ֡ፕă‫ڼ‬ᅃْႀ֡ፕԈࡤस٪ഗ‫ں‬ ኷Lj‫ْܾڼ‬ႀ֡ፕԈࡤस٪ഗຕ਍ă૩ྔ൧઄๟ॽᆩࢽۨ ᅭ୳հഗူሜ‫ڟ‬AD7760Ljၘ൧९“ူሜᆩࢽۨᅭ୳հഗ”և ‫ݴ‬ă“AD7760स٪ഗ”և‫ࠃ༵ݴ‬କस٪ഗ‫ں‬኷ࢅၘဦ႑တă ཮3၂๖କ‫ܔ‬AD7760ኴႜ‫ڦ‬ᅃ߲ႀ֡ፕăRD/WR၍‫ت‬ᇀߛ ‫ۉ‬ೝLjཞ้CS၍Վྺ‫ۉگ‬ೝժԍ‫׼‬዁ณ຺߲ICLKዜ೺ăस ٪ഗ‫ں‬኷ሞُ೺क़ԥ໮٪ăCS၍ምْՎྺߛ‫ۉ‬ೝժԍ‫׼‬዁ ณ຺߲ICLKዜ೺Lj඗ࢫॽस٪ഗຕ਍ዃᇀຕ਍ጺ၍ฉăස ࡕႀ෇स٪ഗ‫ں‬኷ᇑႀ෇स٪ഗຕ਍ኮक़݀ิᅃ߲‫֡܁‬ ፕLjሶस٪ഗ‫ں‬኷ԥൣ‫أ‬Ljူᅃ߲ႀ֡ፕՂႷႀ෇स٪ഗ ‫ں‬኷ăኄᄺ๟ᅃዖᆶᆩ‫݆ݛڦ‬Lj‫ړ‬ᆩࢽྮऻူᅃ߲ႀ֡ፕ ๟ႀ෇‫ں‬኷࣏๟ຕ਍้Lj੗ᅜ૧ᆩ޿‫ڟ࣮݆ݛ‬ᅙኪጒༀă ᅃӯܸჾLjႀ෇ࢅದዃAD7760݀ิሞฉ‫้ۉ‬Ljटณ݀ิሞ ฉ‫ۉ‬ኮࢫăሞඪࢆႀ֡ፕࢫLjՂႷ‫୳ڟڪ‬հഗ‫ྜڦ‬ኝඖჽ ‫้׿‬क़ኮࢫLj֍ీٗAD7760๼‫؜‬ᆶၳຕ਍ă Rev. A | Page 23 of 36 AD7760 AD7760้ዓᄲ൱ AD7760Ⴔᄲᅃ߲ྔև‫گ‬۶‫้ۯ‬ዓᇸăُ႑ࡽแेᇀMCLK ᆅগLjMCLKGNDᆅগሶᆩઠॠ้֪ዓᇸ‫ڦ‬থ‫ں‬ăాև้ ዓ႑ࡽ(ICLK)ٗMCLK๼෇႑ࡽइ‫ڥ‬ăICLK੦዆AD7760‫ڦ‬ ໯ᆶాև֡ፕăICLKፌ‫ٷ‬ೕ୲ྺ20 MHzLj‫ڍ‬ᆯᇀ٪ሞా և้ዓ‫ݴ‬ೕഗLjᅺُ੗ᅜ๑ᆩ‫ܠ‬ዖMCLKೕ୲ăׂิICLK ‫݆ݛڦ‬ᆶଇዖǖ ICLK = MCLK (CDIV = 1) ICLK = MCLK/2 (CDIV = 0) ኄၵ჋ၜཚࡗ੦዆स٪ഗ৊ႜ჋ስ)ၘ൧९“AD7760स٪ ഗ”և‫*ݴ‬ăฉ‫้ۉ‬Ljఐණ჋ၜྺICLK = MCLK/2Ljᅜඓԍ ഗॲీࠕ‫ت‬૙ፌ‫ٷ‬40 MHz‫ڦ‬MCLKೕ୲ăසࡕ๼‫؜‬ຕ਍໏ ୲ᇑᅼೕဣཥ໯ᆩ‫ڦ‬ຕ਍໏୲၎ཞLjሶ੗ᅜ๑ᆩ12.288 MHz ICLKೕ୲ăස՗6໯๖Lj૧ᆩُICLKೕ୲੗ᅜํ၄ 192 kHzĂ96 kHzࢅ48 kHz‫ڦ‬๼‫؜‬ຕ਍໏୲ăසമ໯ຎLjُ ICLKೕ୲੗ᅜٗփཞ‫ڦ‬MCLKೕ୲इ‫ڥ‬ă ॺᅱแेᇀAD7760‫ڦ‬MCLK႑ࡽਏᆶ50-50‫ࡽدڦ‬੣ࡽ Բăሞ้ዓ1‫ݴ‬ೕఇ๕ူ)नCDIV=1*߾ፕ้Lj๑ᆩডߛ‫ڦ‬ ‫ࡽد‬੣ࡽԲࣷই‫گ‬੗แेᇀAD7760ᅜํ၄ፌߛႠీ‫ڦ‬ MCLKፌ ‫ ٷ‬ೕ ୲ ă ૩ ස Lj ๑ ᆩ 60-40‫ ࡽ د ڦ‬੣ ࡽ Բ ้ (CDIV=1)Ljํ၄ፌߛINLࢅTHDႠీ‫ڦ‬MCLKፌ‫ٷ‬ೕ୲ই ዁16 MHză ࣐؋MCLK႑ࡽ AD7760‫ڦ‬MCLK႑ࡽՂႷঢ়ࡗ࣐؋ኮࢫLj֍ీ๼෇ഗॲ‫ڦ‬ MCLKᆅগăኄኻᄲॽMCLK႑ࡽୟᆯ዁ᇑோ‫ڦ‬ଇ߲๼෇ Ս੗ൟ຿ํ၄)९཮47*ă ླྀ४‫࣐ڦ‬؋ഗྺFairchild Semiconductor‫ڦ‬ມ๼෇ᇑோ NC7SZ08M5ăྺ๑AD7760ํ၄ፌॅႠీLjॺᅱᆩ5 V‫ۉ‬ᇸ ྺ޿࣐؋ഗࠃ‫ۉ‬ă AD7760 3 MCLK NC7SZ08M5 (AND GATE) 04975-054 MCLK SOURCE MCLK۶‫ۯ‬ᄲ൱ MCLK۶‫ۯ‬ᄲ൱ൽਦᇀ‫߲ܠ‬ᅺ໎Ljᆯူ๕ߴ‫؜‬ǖ ഄዐǖ OSR = ࡗ֑ᄣ୲ = fICLK/ODRă fIN = ፌ‫ٷ‬๼෇ೕ୲ă SNR(dB) = ణՔ႑ሯԲă ๖૩1 Ԩ૩ઠጲ՗6Ljഄዐǖ ODR = 2.5 MHz. fICLK = 20 MHz. fIN (max) = 1 MHz. SNR = 108 dB. ኄ๟ਏᆶߴۨICLKೕ୲ࢅ๼‫؜‬ຕ਍໏୲‫ڦ‬஢ଉ‫ײ‬1 MHz๼ ෇‫ڦ‬ፌ‫ٷ‬ඹႹ้ዓ۶‫ۯ‬ă ๖૩2 ‫߲ܾڼ‬๖૩ᄺઠጲ՗6Ljഄዐǖ ODR = 48 kHz. fICLK = 12.288 MHz. fIN (max) = 19.2 kHz. SNR = 120 dB. ๼෇‫ܔ܈ޗ‬ኄၵ۶‫ۯ‬ຕኵᄺᆶᆖၚă૩සLjසࡕ๼෇‫ۉ‬ೝ Բ஢ଉ‫گײ‬3 dBLjඹႹ۶‫√ߛ༵ॽۯ‬2ԠLj๖૩1‫ڦ‬ඹႹ۶‫ۯ‬ ॽ༵ߛ‫ڟ‬2.53 ps਩‫ߵݛ‬ኵă‫܈ޗړ‬ই‫ڞگ‬ዂፌ‫ٷ‬უӦ୲ই ‫้گ‬Lj৽ࣷ݀ิኄዖ൧઄ă཮48ࢅ཮49ཚࡗ၂๖ೕ୲၎ཞ ‫܈ޗڍ‬փཞ‫ڦ‬ᅃ߲ኟ၀հ‫ڦ‬ፌ‫ٷ‬უӦ୲Ljຫ௽କኄᅃ‫ۅ‬ă ཮47. ๑ᆩNC7SZ08M5ᇑோ࣐؋MCLK႑ࡽ Rev. A | Page 24 of 36 1.0 0.5 0.5 0 0 –0.5 –0.5 04975-038 1.0 –1.0 –1.0 ཮48. ‫ྺ܈ޗ‬2 V‫ރރ‬ኵ‫ڦ‬ኟ၀հ‫ڦ‬ፌ‫ٷ‬უӦ୲ ཮49. ‫ྺ܈ޗ‬1 V‫ރރ‬ኵ‫ڦ‬ኟ၀հ(ഄೕ୲ᇑ཮48၎ཞ) ‫ڦ‬ፌ‫ٷ‬უӦ୲ Rev. A | Page 25 of 36 04975-039 AD7760 AD7760 ൻ‫ۯ‬AD7760 AD7760ᆶᅃ߲ೌాֶ‫ٷݣݴ‬ഗLj໲֑ᆩ3.15 V዁5.25 V‫ݔ‬ ྷా‫ۉڦ‬ᇸ‫ۉ‬უ(AVDD3)ࠃ‫ۉ‬ă‫ܔ‬ᇀ4.096 Vएጚ‫ۉ‬უᇸLj‫ۉ‬ ᇸ‫ۉ‬უՂႷྺ5 Vă ྺํ၄ኟ‫׉‬ఇ๕ူ‫ۨܮڦ‬ႠీLjֶ‫ٷݣݴ‬ഗᆌದዃྺᅃ঩ ੇं۠୳հഗLjස཮50໯๖ăඪࢆഄ໲୳հ‫ۼ‬ᆌሞമ௬‫ڦ‬ ‫ۉ‬ୟप૧ᆩ‫گ‬ሯำĂߛႠీሏ໙‫ٷݣ‬ഗኴႜLjසAD8021 ‫ڪ‬ă ๢ᆩᇀ޿ᅃ঩୳հഗ‫ࢇڦ‬๢ᇮॲኵස՗8໯ଚăᅜ՗ዐ‫ڦ‬ ኵྺ૩Ljሞ19 MHz‫ڼڦ‬ᅃ߲ं۠‫ۅ‬੗ํ၄10 dB‫ڦ‬ປ३ă ጚ‫ۉ‬უኵူ‫ڦ‬ፌ‫ٷ‬ඹႹ‫ۉ‬უӦ‫ޗ‬ă޿Ӧ‫ྺޗ‬VREF‫ڦ‬80%Lj न0.8 × 4.096 V ≈ 3.275 V‫ރރ‬ኵ(௅߲๼෇)ă ๑ᆩ4.096 Vएጚ‫ۉ‬უᇸ้LjՂႷྺएጚ‫ۉ‬უᇸ࣐؋(AVDD4) ༵ࠃ5 V‫ۉ‬ᇸă๑ᆩ2.5 Vएጚ‫ۉ‬უᇸ้LjՂႷྺAVDD4༵ ࠃ3.3 V‫ۉ‬ᇸă ཮51၂๖ॽ‫ۉ‬უ႑ࡽVAࢅVBแेᇀೌాֶ‫ٷݣݴ‬ഗA1้ (ස཮52໯๖)LjAD7760‫ڦ‬24࿋ຕጴ๼‫؜‬ஓ(ܾ৊዆ցஓՊ ஓ)‫ࡧڿدڦ‬ຕă CFB 24 BITS 011…111 RFB 011…110 RIN A RM VIN– CS A1 B RM RIN 000…010 AD7760 24-BIT OUTPUT VIN+ RFB 000…001 000…000 111…111 111…110 04975-040 CFB 100…001 ཮50. ֶ‫ٷݣݴ‬ഗದዃ RIN 1 kΩ RFB 655 Ω RM 18 Ω CS 5.6 pF B = +2.5V A = –2.5V CFB 33 pF A = 0V B = 0V ཮52၂๖๑ᆩ཮50໯๖‫ۉ‬ୟĂ‫ںܔ‬ೋዃ‫ڦ‬±2.5 V๼෇႑ࡽᅜ त՗8໯ଚ‫ڦ‬ᇮॲኵࢅཉॲ้݀ิ‫ڦ‬႑ࡽۙ૙൧઄ăֶ ‫ٷݣ ݴ‬ഗ๔ዕ๑๼‫؜‬႑ࡽೋዃሞV REF /2‫ڦ‬ፌॅࠌఇ‫ۉ‬უ ฉLjԨ૩ዐྺ2.048 Vă޿႑ࡽཞᄣঢ়ࡗۙኝLjᅜ༵ࠃُए +2.5V +3.685V 0V +2.048V VIN+ A –2.5V +0.410V +2.5V +3.685V B 0V +2.048V –2.5V +0.410V INPUTS TO THE AD7760 DIFFERENTIAL AMPLIFIER A = +2.5V B = –2.5V ཮51. AD7760୳հ๼‫ࡧڿدڦ؜‬ຕLjഄዐVA ࢅVB ྺ ೌాֶ‫ٷݣݴ‬ഗA1‫ڦ‬๼෇ VIN– OUTPUTS OF THE AD7760 DIFFERENTIAL AMPLIFIER ཮52. ֶ‫ٷݣݴ‬ഗ႑ࡽۙ૙ Rev. A | Page 26 of 36 04975-055 VREF 4.096 V 04975-056 100…000 ՗8. ኟ‫׉‬ఇ๕ᇮॲኵ AD7760 ྺ๑AD7760ࣩ݀ፌॅႠీLjॺᅱᆩֶ‫ݴ‬႑ࡽൻ‫ۯ‬ADCă ཮53၂๖ᅃ߲‫ںܔ‬ೋዃ‫ڦ‬ມटႠĂ‫܋ڇ‬႑ࡽ঺ዺᅃ߲ྔև ሏ໙‫ٷݣ‬ഗ(සAD8021‫)ڪ‬ൻ‫ۯ‬AD7760ă CFB RFB 2R 2R VIN RIN RM AD8021 VIN– CS A1 R RIN RM VIN+ 04975-042 RFB CFB ཮53. ‫܋ڇ‬ገֶ‫ݴ‬ AD7760֑ᆩມ֑ᄣമ‫܋‬Ljස཮54໯๖ăྺ०௽ഐ९Ljৈ၂ ๖VIN+‫ڪڦ‬ၳ๼෇‫ۉ‬ୟăVIN−‫ڪڦ‬ၳ๼෇‫ۉ‬ୟᇑُ၎ཞă VIN+ SH3 CPA SH1 CPB1 AD7760‫ڦ‬ฉ‫ࢅۉ‬๑ᆩॺᅱ֑ᆩසူ֡ፕႾଚǖ แे‫ۉ‬ᇸă ഔ‫้ۯ‬ዓና‫ږ‬ഗLjแेMCLKă ๑RESETՎྺ‫ۉگ‬ೝLjԍ‫׼‬዁ณᅃ߲MCLKዜ೺ă ሞRESET๥‫ځڪࢫݣ‬዁ณଇ߲MCLKዜ೺ă ႀ෇੦዆स٪ഗ2Ljߵ਍Ⴔᄲ๑ADCࢅֶ‫ٷݣݴ‬ഗฉ ‫ۉ‬ăُ้ᆌยዃኟඓ‫้ڦ‬ዓ‫ݴ‬ೕԲ(CDIV）ă 6. ႀ෇੦዆स٪ഗ1Ljยዃ๼‫؜‬ຕ਍໏୲ă 7. ሞCS๥‫ځڪࢫݣ‬዁ณ࿵߲MCLKዜ೺ă 8. සࡕႴᄲLj๑SYNCՎྺ‫ۉگ‬ೝժԍ‫׼‬዁ณ຺߲MCLK ዜ೺LjᅜՍ๑‫߲ܠ‬ഗॲཞօă 1. 2. 3. 4. 5. ੗ᅜ૧ᆩఐණ‫୳ڦ‬հഗĂ฿ۙĂሺᅮࢅ‫ג‬ଉ‫ײ‬ពኵยዃٗ ޿ഗॲ‫܁‬ൽຕ਍ăփࡗLjገ࣑ຕ਍‫܁‬ൽኻᆶ‫୳ڟڪ‬հഗ‫ڦ‬ ඖჽ‫้׿‬क़ኮࢫ֍ᆶၳăᅃ‫ׯྜڋ‬Ljໜຕ਍LSW‫܁‬ൽ‫ڦ‬ DVALID࿋ᅙዃ1Lj՗௽ຕ਍ඓํᆶၳă සࡕႴᄲLjᆩࢽໜࢫ੗ᅜူሜփཞ‫୳ڦ‬հഗ)९“ူሜᆩࢽ ۨᅭ୳հഗ”և‫*ݴ‬ăሞُप੗ᅜႀ෇ई‫܁‬ൽሺᅮĂ฿ۙࢅ ‫ג‬ଉ‫ײ‬ពኵस٪ഗ‫ڦ‬ኵă CS1 SS1 ๑ᆩAD7760 SS3 ANALOG MODULATOR CS2 SS2 SH4 CPB2 SS4 04975-043 SH2 ཮54. ‫ڪ‬ၳ๼෇‫ۉ‬ୟ ֑ᄣਸ࠲SS1ࢅSS3ᆯ ൻ‫ۯ‬Lj֑ᄣਸ࠲SS2ࢅSS4ሶᆯICLKൻ ‫ۯ‬ă‫ړ‬ICLKྺߛ‫ۉ‬ೝ้Ljఇె๼෇‫ۉ‬უ૶থ‫ڟ‬CS1ăሞ ICLK‫ူڦ‬ইᄂLjSS1ࢅSS3ਸ࠲܏ਸLjఇె๼෇ሞCS1ฉ৊ ႜ֑ᄣăཞᄣLj‫ړ‬ICLKྺ‫ۉگ‬ೝ้Ljఇె๼෇‫ۉ‬უ૶থ‫ڟ‬ CS2ăሞICLK‫ڦ‬ฉืᄂLjSS2ࢅSS4ਸ࠲܏ਸLjఇె๼෇ሞ CS2ฉ৊ႜ֑ᄣă ‫ۉ‬ඹCPAĂCPB1ࢅCPB2‫پ‬՗सิ‫ۉ‬ඹLjԈઔMOSਸ࠲‫ڦ‬ ၎࠲঳‫ۉ‬ඹă ՗9. ‫ڪ‬ၳᇮॲኵ Mode Normal Low Power CS1 (pF) 51 13 CS2 (pF) 51 13 CPA (pF) 12 12 CPB1/2 (pF) 20 5 Rev. A | Page 27 of 36 AD7760 ඁ᳘ࢅքਆॺᅱ PIN 41 24 27 44 63 41 AVDD1 AVDD1 AVDD3 AVDD2 VDRIVE VDRIVE DVDD PIN 44 PIN 63 6 33 PIN 24 PIN 27 12 AVDD4 PIN 6 PIN 33 4 14 15 U2 AVDD2 AVDD2 AVDD2 19 VINA+ 20 VINA– 21 VOUTA– 22 VOUTA+ DB [0:15] 8 DECAPA 30 DECAPB C7 100nF 25 VIN+ 26 VIN– VIN+ VIN– C64 33pF AD7760BSV 10 VREF+ 9 REFGND AVDD2 DGND DGND DGND DGND DGND DGND DGND AVDD4 L1 PIN 4 (RHS) C48 100nF L3 PIN 15 (VBIAS) C50 100nF PIN 12 (VBUF) L2 PIN 14 (LHS) C62 100nF L9 PIN 27 AVDD3 RESET SYNC DRDY 3 2 MCLK MCLKGND 11 AGND4 AGND3 AGND3 AGND3 AGND3 23 29 31 32 AVDD1 CS RD/WR 37 36 38 RESET SYNC DRDY AGND2 AGND2 AGND2 AGND2 AGND2 R19 160k 1 35 42 43 53 62 64 DB0 DB1 DB2 DB3 DB4 DB5 DB6 DB7 DB8 DB9 DB10 DB11 DB12 DB13 DB14 DB15 40 39 CS RD/WR RBIAS 5 13 16 18 28 17 7 AGND1 34 AGND1 VREFX 61 60 59 58 57 56 55 54 52 51 50 49 48 47 46 45 DB0 DB1 DB2 DB3 DB4 DB5 DB6 DB7 DB8 DB9 DB10 DB11 DB12 DB13 DB14 DB15 MCLK VDRIVE DVDD L4 L5 R38 10 C59 10nF PIN 5 (VMOD1) C52 100nF L11 PIN 33 (VMOD2) C53 100nF ཮55.૶থ๖ᅪ཮ Rev. A | Page 28 of 36 L6 PIN 24 (VDIF1) C54 100nF L7 PIN 44 (VDRV1) C56 100nF L8 L12 PIN 63 (VDRV2) C57 100nF PIN 41 (DVDD) C58 100nF 04975-046 VINA+ VINA– VOUTA– VOUTA+ PIN 12 PIN 4 PIN 14 PIN 15 AD7760๟ᅃ੼ߛႠీADCLjᄲइ‫ڥ‬Ԩຕ਍๮֩໯ຎ‫ڦ‬ႠీLjՂႷ֑ᆩ๢‫ڦړ‬ඁ᳘ࢅքਆरຍă཮55ߴ‫؜‬କAD7760 ‫૶ڦ‬থ๖ᅪ཮ă AD7760 ‫ۉ‬ᇸඁ᳘ ೋዃ‫ۉ‬ፆ჋ስ ௅߲‫ۉ‬ᇸᆅগՂႷཚࡗཎᄟ༹‫ى‬ዩ૶থ‫ڟ‬๢‫ۉڦړ‬ᇸLjժ ᆩᅃ߲100 nFĂ0603ྔႚ؅٫ĂX7R႙‫঻ۉ‬ዊ‫ۉ‬ඹඁ᳘዁ኟ ඓ‫ڦ‬থ‫ں‬ᆅগă‫ڍ‬ᆶଇ߲૩ྔ൧઄ǖ AD7760ᄲ൱ሞRBIASᇑAGNDᆅগኮक़૶থᅃ߲‫ۉ‬ፆăُ ‫ۉ‬ፆ‫ڦ‬ኵൽਦᇀഗॲ໯ᆩ‫ڦ‬एጚ‫ۉ‬უă໯჋ፆኵᆌ‫ీړ‬ሞ ޿‫ۉ‬ፆ዁‫ڦں‬ୟ০ዐׂิ25 μA‫ୁۉڦ‬ă‫ܔ‬ᇀ2.5 Vएጚ‫ۉ‬ უLjኟඓ‫ڦ‬ፆኵྺ100 kΩǗ‫ܔ‬ᇀ4.096 Vएጚ‫ۉ‬უLjኟඓ‫ڦ‬ ፆኵྺ160 kΩă t ᆅগ12(AVDD4)ᇑᅃ߲10 nFඁ᳘‫ۉ‬ඹኮक़ՂႷ֭෇ᅃ߲ 10 Ω‫ۉ‬ፆLj޿ඁ᳘‫ۉ‬ඹ૶থ‫ڟ‬থ‫ں‬ᆅগ9ă t ᆅগ27(AVDD2)փႴᄲ‫ڦ܀ڇ‬ඁ᳘‫ۉ‬ඹई኱থ૶থ‫ۉ‬ ᇸLjܸ๟ཚࡗᅃ߲15 nH‫૶ߌۉ‬থ‫ڟ‬ᆅগ14ă ഄ໲ඁ᳘ AD7760ฉᆶଇ߲ഄ໲ඁ᳘ᆅগǖᆅগ8(DECAPA)ࢅᆅগ 30(DECAPB)ăᆅগ8ᆌཚࡗᅃ߲100 nF‫ۉ‬ඹඁ᳘Ljᆅগ30 ሶཚࡗᅃ߲33 pF‫ۉ‬ඹඁ᳘ă एጚ‫ۉ‬უ୳հ ADR431(2.5 V)ईADR434(4.096 V)‫گڪ‬ሯำएጚ‫ۉ‬უᇸ๢ ࢇAD7760๑ᆩăࠃߴAD7760‫ڦ‬एጚ‫ۉ‬უᆌ৊ႜඁ᳘ࢅ୳ հLjස཮56໯๖ă एጚ‫ۉ‬უᇸ‫ླྀڦ‬४ದዃ‫ݛ‬ӄ๟ॽᅃ߲100 Ω‫ۉ‬ፆ‫ڟ૴ز‬ᅃ߲ 100 μF᮳‫ۉ‬ඹLj඗ࢫথᅃ߲10 Ω‫ۉ૴ز‬ፆLjፌࢫॽᅃ߲10 nF‫ۉ‬ඹ৑੗ీ੍ৎVREF+ᆅগ‫ݣ‬ዃLjժॽُ‫ۉ‬ඹඁ᳘዁၎࠲ ‫ڦ‬থ‫ں‬ᆅগ11ă U3 2 7.5V C15 10μF + C9 100nF VIN VOUT GND 4 6 R30 100Ω C11 100μF R17 10Ω + C46 10nF PIN 10 04975-047 ADR434 քਆ੊୯ ྺକํ၄ፌॅႠీLjኟඓ‫ڦ‬քਆᇑ๑ᆩኟඓ‫ڦ‬ᇮॲཞᄣዘ ᄲăADIࠅິྪበ‫ڦ‬AD7760ׂ೗ᄻ௬༵ࠃAD7760ೠࠚӱ ‫ڦ‬Gerber࿔ॲăยऺ֑ᆩAD7760‫ڦ‬ඪࢆဣཥ้Ljᆌ‫੊֖ړ‬ ኄၵ࿔ॲă Ԩຕ਍๮֩ံമև‫ڦڟ༵ݴ‬ᅃၵᇮॲ࿋ዃࢅ‫ݛ‬ၠ‫׉ݥ‬ዘ ᄲLjܸ൐ՂႷ༬՚ጀᅪఫၵ੍ৎAD7760‫ڦ‬ᇮॲăॽኄၵᇮ ॲᇺ૗޿ഗॲ‫ݣ‬ዃ੗ీࣷ኱থᆖၚ੗ํ၄‫ڦ‬ፌߛႠీă ࣏ᆌጮဦ੊୯থ‫ڦ֫ں‬๑ᆩăྺඓԍঢ়ࡗඁ᳘‫ۉ‬ඹ‫࣮ڦ‬ୟ ‫ୁୁۉ‬ၠኟඓ‫ڦ‬থ‫ں‬ᆅগLj‫ۉ‬ඹথ‫܋ں‬ᆌ৑੗ీ੍ৎᇑ޿ ‫ۉ‬ᇸ၎࠲‫ڦ‬থ‫ں‬ᆅগăփᆌৈৈᅈડথ‫֫ں‬ፕྺඁ᳘‫ۉ‬ඹ ‫࣮ڦ‬ୟLjᅺྺ๑ᆩথ‫࣮ୁۉڦ֫ں‬ୟփඹᅟᇨ֪ă ஋୞ࡰಎ AD7760 64ᆅগTQFP‫ހ‬ጎ֑ᆩ6 mm × 6 mm஋୞ࡰಎ(९཮ 59)ăࡰಎሞ‫ހ‬ጎᇑPCBኮक़༵ࠃᅃཉඤଉୁ‫ۯ‬ཚ‫ڢ‬Ljই‫گ‬ କ‫ހ‬ጎ‫ڦ‬ඤፆLj৊ܸ༵ߛକAD7760‫ހ‬ጎ‫ڦ‬ොඤၳ୲ăྺକ ‫ظ‬ሰཉॲᅜኧ‫׼‬AD7760ࣩ݀ፌߛႠీLjՂႷॽ஋୞ࡰಎ૶ থ‫ڟ‬PCB‫ڦ‬AGND֫ă஋୞ࡰಎփᆌ኱থ૶থ‫ڟ‬AD7760ฉ ‫ڦ‬ඪࢆথ‫ں‬ᆅগLjኻᆌ૶থ‫ڟ‬ఇెথ‫֫ں‬ăፌॅፔ݆๟૧ ᆩ‫ࡗ߲ܠ‬੥ॽ஋୞ࡰಎ૶থ‫ڟ‬PCB‫ڦ‬AGND֫ă ཮56. एጚ‫ۉ‬უ૶থ ֶ‫ٷݣݴ‬ഗᇮॲ ՗8ၘဦଚ‫؜‬କೌాֶ‫ٷݣݴ‬ഗዜྷ໯ᆩ‫ڦ‬๢‫ړ‬ᇮॲăྺ ๑แेᇀֶ‫ٷݣݴ‬ഗ‫ڦ‬႑ࡽ฿ኈፌၭLj‫ٷݣ‬ഗଇ‫ڦ܋‬ᇮॲ ՂႷ೅ದăኄၵᇮॲᄲ൱0.1%ई߸ࡻ‫ڦ‬ඹֶăֶ‫ٷݣݴ‬ഗ ଇ‫ڦ܋‬ጽ၍‫׬ܔ‬քยᄺᆶዺᇀํ၄໯ຎႠీă Rev. A | Page 29 of 36 AD7760 ੗Պ‫ײ‬FIR୳հഗ ැᄲ‫ॺظ‬ᅃ߲୳հഗLjႴᄲጀᅪᅜူब‫ۅ‬ǖ t
୳հഗՂႷ๟ᅃ߲౾ຕĂ‫ڦ׬ܔ‬FIR୳հഗă t
ဣຕ֑ᆩ‫߭܈ޗेࡽޙ‬๕Ljࡤ26߲‫܈ޗ‬࿋Lj‫ࡽޙ‬࿋0՗ ๖ኟຕă t
୳հഗ‫܈׊‬ՂႷሞ12؏ཀྵᇑ96؏ཀྵኮक़Ljօ‫ྺ׊‬12ă t
ᆯᇀ୳հഗ๟‫ڦ׬ܔ‬LjᅺُՂႷူሜ‫ڦ‬ဣຕຕଉྺ୳ հഗ‫ڦ܈׊‬ᅃӷăఐණ୳հഗဣຕ৽๟૩ኤLj‫ܔ‬ᇀᅃ ߲96؏ཀྵ୳հഗLjৈଚ‫؜‬କ48߲ဣຕă t
ဣຕٗஞ؋ၚᆌ‫ڦ‬ዐ႐(ᇑ‫ۅ׬ܔ‬၎ତ)ਸ๔ၠྔႀ ෇ă t
‫ܔ‬ဣຕ৊ႜ‫ٷݣ‬Lj๑‫୳ڥ‬հഗ‫ాټڦ‬ሺᅮ‫ڪ‬ᇀ 134,217,726Ljཞ้ॽဣຕ຺ป࿵෇ྺፌথৎ‫ڦ‬ኝຕă ‫ܔ‬ᇀ‫گ‬ཚ୳հഗLjኄ၎‫ړ‬ᇀ‫ܔ‬ӷஞ؋ၚᆌဣຕणా‫ڦ‬ ဣຕ(ፌ‫ܠ‬48߲)৊ႜ໙ຍ൱ࢅ(Ԉઔ‫)ࡽޙ‬Lj๑ኮ‫ڪ‬ᇀ +67,108,863(0x3FF FFFF)ăᇑُኵ‫ڦ‬ඪࢆೋֶ‫ڞࣷۼ‬ዂ ሺᅮဃֶă ՗10. ఐණ୳հഗဣຕ ๆ৊዆ኵ 53656736 25142688 −4497814 −11935847 −1313841 6976334 3268059 −3794610 −3747402 1509849 3428088 80255 −2672124 −1056628 1741563 1502200 −835960 −1528400 93626 1269502 411245 −864038 −664622 434489 ๆୃ৊዆ኵ 332BCA0 17FA5A0 444A196 4B62067 4140C31 6A734E 31DDDB 439E6B2 4392E4A 1709D9 344EF8 1397F 428C5FC 4101F74 1A92FB 16EBF8 40CC178 4175250 16DBA 135EFE 6466D 40D2F26 40A242E 6A139 Ⴞࡽ 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 ๆ৊዆ኵ 700847 −70922 −583959 −175934 388667 294000 −183250 −302597 16034 238315 88266 −143205 −128919 51794 121875 16426 −90524 −63899 45234 114720 102357 52669 15559 1963 ๆୃ৊዆ኵ AB1AF 401150A 408E917 402AF3E 5EE3B 47C70 402CBD2 4049E05 3EA2 3A2EB 158CA 4022F65 401F797 CA52 1DC13 402A 401619C 400F99B B0B2 1C020 18FD5 CDBD 3CC7 7AB ఐණ୳հഗ๢ࢇ‫ܠٷ‬ຕᆌᆩă໲๟ᅃ߲Քጚጇ഻๕୳հ ഗLjਏᆶ‫ڦ׬ܔ‬ஞ؋ၚᆌăఐණ୳հഗ‫ྺ܈׊ڦ‬96Lj‫ंݥ‬ ۠Ljሞలઊຯ༬ೕ୲้༵ࠃ120 dB‫ڦ‬ປ३ăُ୳հഗփৈ ీኴႜ႑ࡽੇं۠Ljܸ൐ీᅞ዆ఇຕገ࣑ࡗ‫ײ‬໯ׂิ‫ټڦ‬ ྔଉࣅሯำă၎‫ܔ‬ᇀఐණ୳հഗLjፆ‫ټ‬ປ३ईࡗ‫ڦ੻ټ܉‬ ඪࢆ၂ዸই‫ڞࣷۼگ‬ዂ࿮݆ํ၄SNR‫ۨܮ‬Ⴀీă ఐණ୳հഗ༬Ⴀᇑ໯แे‫ڦ‬MCLKೕ୲ࢅᆩࢽ჋ስ‫؏ڦ‬ൽ ୲਩‫ׯ‬Բ૩ă 0 PASS-BAND RIPPLE = 0.05dB –0.1dB FREQUENCY = 1.004MHz –3dB FREQUENCY = 1.06MHz STOP BAND = 1.25MHz –20 –40 AMPLITUDE (dB) Ⴞࡽ 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 –60 –80 –100 –120 –140 –160 0 500 1000 1500 2000 FREQUENCY (kHz) 2500 04975-044 සമ໯ຎLjAD7760‫ڼڦ‬ෙ߲FIR୳հഗ๟ᆩࢽ੗Պ‫ڦײ‬ă ް࿋้ेሜ‫ڦ‬ఐණဣຕස՗10໯ଚLjೕ୲ၚᆌස཮57໯ ๖ă཮57໯๖‫ڦ‬ೕ୲ᇑ๼‫؜‬ຕ਍໏୲‫ׯ‬ኟԲă ཮57. ఐණ୳հഗೕ୲ၚᆌ(2.5 MHz ODR) ူሜᆩࢽۨᅭ୳հഗ‫ײڦ‬Ⴞၘ९“ူሜᆩࢽۨᅭ୳հഗ”և ‫ݴ‬ă Rev. A | Page 30 of 36 AD7760 ူሜᆩࢽۨᅭ୳հഗ ୳հഗူሜ๖૩ ူ௬๟ူሜᅃ߲ড‫ڦ܌‬35؏ཀྵᆩࢽۨᅭ୳հഗ‫ڦ‬๖૩ăೕ ୲ၚᆌස཮69໯๖ă 10 0 –10 AMPLITUDE (dB) සമ໯ຎLj୳հഗဣຕࠌᆶ27࿋ǖ1߲‫ࡽޙ‬࿋ࢅ26߲‫܈ޗ‬ ࿋ăAD7760‫ڦ‬ժႜጺ၍‫ྺ܈׊‬16࿋LjᅺُႴ‫ܔ‬ኄၵဣຕ‫ڦ‬ 5߲MSBག؊ 0ᅜׂิᅃ߲32࿋ጴLjॽഄ‫ྺݴ‬ଇ߲16࿋ጴࠃ ူሜă௅߲ဣຕ‫ڼڦ‬ᅃ߲16࿋ጴྺ)00000Lj‫ࡽޙ‬࿋Lj‫܈ޗ‬ [25:16]*Lj‫߲ܾڼ‬ጴሶྺ)‫[܈ޗ‬15:0]*ăྺඓԍ୳հഗူሜኟ ඓLj࣏ՂႷׂิᅃ߲ၯᄓࢅLjժሞፌࢫᅃ߲ဣຕኮࢫ৊ႜ ူሜă޿ၯᄓࢅ๟ᅃ߲16࿋ጴLjཚࡗॽ߳32࿋ጴ‫຺߲ྺݴ‬ ጴবLjժ‫ܔ‬໯ᆶဣຕ‫ڦ‬ኄၵጴব൱ࢅׂิLjፌ‫ܠ‬ᆶ192߲ ጴব(48߲ဣຕ × 4߲ጴব)ăAD7760ాևׂิཞᄣ‫ڦ‬ၯᄓ ࢅLjժᇑူሜ‫ڦ‬ၯᄓࢅ৊ႜԲডăසࡕܾኁᅃዂLjሶጒༀ स٪ഗዐ‫ڦ‬DL_OK࿋ዃ1ă ူሜᆩࢽ୳հഗ‫ײڦ‬Ⴞසူǖ –20 –30 –40 –50 –60 ႀ෇੦዆स٪ഗ1LjኟඓยዃDL_FILT࿋त୳հഗ‫܈׊‬ ࿋(९՗11)ă 2. ႀ෇‫ړ‬മဣຕຕ਍‫ڦ‬മӷև‫(ݴ‬00000Lj‫ࡽޙ‬࿋Lj‫܈ޗ‬ [25:16])ă‫ڼ‬ᅃ߲ႀ෇‫ڦ‬ဣຕՂႷ๟ᇑ୳հഗ‫ۅ׬ܔ‬၎ ତ‫ڦ‬ဣຕă –70 –80 3. ႀ෇‫ړ‬മဣຕຕ਍‫ࢫڦ‬ӷև‫[܈ޗ(ݴ‬15:0])ă 4. ዘް‫ڼ‬2օࢅ‫ڼ‬3օLjႀ෇߳ဣຕă 5. ႀ෇16࿋ၯᄓࢅă 6. ๑ᆩᅜူ‫݆ݛ‬ඓණ୳հഗဣຕူሜኟඓǖ a. ‫܁‬ൽጒༀस٪ഗLjॠֱDL_OK࿋ă b. ‫܁‬ൽຕ਍ժ࠵ִDL_OK࿋‫ڦ‬ጒༀă FLEN [3:0] 0000 0001 0011 0101 0111 1001 1011 1101 1111 ဣຕຕଉ Default 6 12 18 24 30 36 42 48 ୳հഗ‫܈׊‬ Default 12 24 36 48 60 72 84 96 100 200 300 400 500 FREQUENCY (kHz) 600 ཮58. 24؏ཀྵFIR୳հഗೕ୲ၚᆌ ޿୳հഗ‫ڦ‬ဣຕଚᇀ՗23LjӀٗ‫ۅ׬ܔ‬ၠྔ‫ڦ‬ຩႾଚ‫؜‬ă ᇱ๔ဣຕ૧ᆩᅃ੼ฆᆩ୳հഗยऺ߾ਏׂิLjঢ়ࡗ๢‫ݣړ‬ ‫ࢫٷ‬Ljഄࢅ‫ڪ‬ᇀ78-219-974)1y4GG!GGGG*ă ՗12. 24؏ཀྵFIRဣຕ ൩ጀᅪLjᆯᇀᆩࢽဣຕ٪‫ئ‬ሞRAMዐLjᅺُሞRESET֡ፕ ईۖ‫ۉ‬ኮࢫLjኄၵဣຕࣷԥൣ‫أ‬ă ՗11. ୳հഗ‫܈׊‬ኵ 0 04975-045 1. ဣຕ 1 2 3 4 5 6 7 8 9 10 11 12 Rev. A | Page 31 of 36 ᇱ๔ኵ 0.365481974 0.201339905 0.009636604 −0.075708848 −0.042856209 0.019944246 0.036437914 0.007592007 −0.021556583 −0.024888355 −0.012379538 −0.001905756 ۙኝኵ 53188232 29300796 1402406 −11017834 −6236822 2902466 5302774 1104856 −3137108 −3621978 −1801582 −277343 AD7760 ՗13၂๖ူሜ‫ڟ‬AD7760ᅜํ၄ُ୳հഗ‫ڦ‬ๆୃ৊዆ኵ(‫ޙ‬ ࡽे‫߭܈ޗ‬๕)ă޿՗Ӏጴবႚ๕၂๖ဣຕLjᅜՍ‫ܔ‬ഄ൱ࢅ ׂܸิၯᄓࢅăኄၵဣຕ໯ׂิ‫ڦ‬ၯᄓࢅྺ0x0E6Bă 14ଚ‫ྺ؜‬ยዃADCժူሜُ୳հഗLjᆩࢽႀ෇AD7760‫ڦ‬16 ࿋ጴLjഄዐ्ย໯჋‫ڦ‬๼‫؜‬ຕ਍໏୲ྺ1.25 MHză ՗14. ยዃഗॲࢅူሜ୳հഗ๖૩‫ڦ‬ႀኸସႾଚ 表13. 滤波器十六进制值 ጴ1 ဣຕ 1 2 3 4 5 6 7 8 9 10 11 12 ጴব 1 03 01 00 04 04 00 00 00 04 04 04 04 ጴব 2 2B BF 15 A8 5F 2C 50 10 2F 37 1B 04 ጴ2 ጴব 3 96 18 66 1E 2A 49 E9 DB DE 44 7D 3B ጴব 4 88 3C 26 6A 96 C2 F6 D8 54 5A 6E 5F ጴ 0x0001 0x8079 0x032B 0x9688 0x01BF 0x183C … 0x0404 0x3B5F 0x0E6B 0x0001 0x0879 Rev. A | Page 32 of 36 ௮ຎ ੦዆स٪ഗ1‫ںڦ‬኷ă ੦዆स٪ഗຕ਍ăDL୳հഗǖยዃ୳հഗ‫ = ܈׊‬24Lj ยዃ๼‫؜‬ຕ਍໏୲ = 1.25 MHză ‫ڼ‬ᅃ߲ဣຕLjጴ1ă ‫ڼ‬ᅃ߲ဣຕLjጴ2ă ‫߲ܾڼ‬ဣຕLjጴ1ă ‫߲ܾڼ‬ဣຕLjጴ2ă ഄ໲ဣຕă ‫ڼ‬ๆܾ߲(ፌዕ)ဣຕLjጴ1ă ፌዕဣຕLjጴ2ă ၯᄓࢅă‫(ځڪ‬0.5 × tICLK × ࿄๑ᆩဣຕຕଉ)Lj ᅜՍAD7760ၠ฻ᇆ࿄๑ᆩဣຕႀ෇0ă ੦዆स٪ഗ‫ںڦ‬኷ă ੦዆स٪ഗຕ਍ăยዃ‫܁‬ൽጒༀLjժԍ‫୳׼‬հഗ ‫؏ࢅ܈׊‬ൽยዃă‫܁‬ൽጒༀस٪ഗ‫ాڦ‬ඹă ॠֱ࿋7 (DL_OK)Ljಒ܏୳հഗူሜ๟‫ޏ‬ኟඓă AD7760 AD7760स٪ഗ AD7760ਏᆶ‫߲ܠ‬ᆩࢽ੗Պ‫ײ‬स٪ഗă੦዆स٪ഗᆩᇀยዃ؏ൽ୲Ă୳հഗದዃࢅ้ዓ‫ݴ‬ೕഗ‫ڪ‬ăଷྔ࣏ᆶຕጴሺᅮĂ฿ۙࢅ ‫ג‬ଉ‫ײ‬ពኵस٪ഗăැᄲႀ෇ኄၵस٪ഗLj๯ံᆌႀ෇स٪ഗ‫ں‬኷Lj඗ࢫႀ෇16࿋ຕ਍ጴăԨև‫ݴ‬ຫ௽स٪ഗ‫ں‬኷Ă߲߳࿋ ‫ၘڦ‬൧ࢅఐණኵă ੦዆स٪ഗ1—‫ں‬኷0x0001 ఐණኵǖ0x001A MSB D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 LSB D0 DL_ FILT RD OVR RD GAIN RD OFF RD STAT 0 SYNC FLEN3 FLEN2 FLEN1 FLEN0 BYP F3 BYP F1 DEC2 DEC1 DEC0 ՗15. ੦዆स٪ഗ1‫ڦ‬࿋ࠀీ௮ຎ ࿋ 15 ᆅগఁ‫׬‬ DL_FILT 1 14 RD OVR1, 2 ‫܁‬ൽ‫ג‬ଉ‫ײ‬ăසࡕُ࿋ᅙዃ1Ljሶူᅃ߲‫֡܁‬ፕ๼‫ג؜‬ଉ‫ײ‬ពኵस٪ഗ‫ాڦ‬ඹLjܸփ๟ገ࣑঳ࡕă 13 12 11 10 9 RD GAIN1, 2 RD OFF1, 2 RD STAT1, 2 0 SYNC1 ‫܁‬ൽሺᅮăසࡕُ࿋ᅙዃ1Ljሶူᅃ߲‫֡܁‬ፕ๼‫؜‬ຕጴሺᅮस٪ഗ‫ాڦ‬ඹă ‫܁‬ൽ฿ۙăසࡕُ࿋ᅙዃ1Ljሶူᅃ߲‫֡܁‬ፕ๼‫؜‬ຕጴ฿ۙस٪ഗ‫ాڦ‬ඹă ‫܁‬ൽጒༀăසࡕُ࿋ᅙዃ1Ljሶူᅃ߲‫֡܁‬ፕ๼‫؜‬ጒༀस٪ഗ‫ాڦ‬ඹă ՂႷॽ0ႀ෇ُ࿋ă ཞօăُ࿋ዃ1ॽഔ‫ాۯ‬ևཞօ‫ײ‬Ⴞăཞ้ॽ‫߲ܠ‬ഗॲ‫ُڦ‬࿋ዃ1੗ཞօ໯ᆶ୳հഗă 8 to 5 4 3 FLEN [3:0] BYP F3 BYP F1 ୳հഗ‫܈׊‬࿋ăူሜᆩࢽۨᅭ୳հഗኮമLjՂႷሞDL_FILT࿋ዃ1้ยዃኄၵ࿋ă ಖୟ୳հഗ3ăසࡕُ࿋ྺ0Ljሶಖୟ୳հഗ3(੗Պ‫ײ‬FIR)ă ಖୟ୳հഗ1ăසࡕُ࿋ྺ0Ljሶಖୟ୳հഗ1ă‫ړ‬ᆩࢽᄲ൱๼‫؜‬࿄ঢ়୳հ‫ۙڦ‬዆ഗຕ਍้Ljᆌ‫֑ړ‬ᆩُยዃă 2 to 0 DEC [2:0] ؏ൽ୲ăኄၵ࿋ยዃ୳հഗ2‫؏ڦ‬ൽ୲ăඇ0՗๖ಖୟ୳հഗăኵ1‫ܔ‬ᆌᇀ2×؏ൽLjኵ2‫ܔ‬ᆌᇀ4×؏ൽLjසُૌ ླྀLjፌ‫ٷ‬ኵྺ5Lj‫ܔ‬ᆌᇀ32×؏ൽă 1 2 ௮ຎ ူሜ୳հഗăူሜᆩࢽۨᅭ୳հഗኮമLjՂႷॽُ࿋ዃ1ăཞ้࣏ᆌยዃ୳հഗ‫܈׊‬࿋ăໜࢫ‫ڦ‬ႀ֡ፕ঴‫ྺ܁‬ FIR୳հഗ‫ڦ‬ᆩࢽဣຕLj኱‫ڟ‬໯ᆶဣຕࢅၯᄓࢅ਩ᅙႀ෇ྜ‫ׯ‬ă ࿋15዁࿋9๟ጲൣଭ࿋ă ඪࢆႀ֡ፕዐLjኻీॽ࿋14዁࿋11ዐ‫ڦ‬ᅃ࿋ዃ1Ljᅺྺ໲ਦۨူᅃ߲‫֡܁‬ፕ‫ాڦ‬ඹă ੦዆स٪ഗ2—‫ں‬኷0x0002 RESETࢫ‫ڦ‬ఐණኵǖ0x009B ๑ᆩ้ዓ2‫ݴ‬ೕ(CDIV = 0)ఇ๕้Ljฉ‫ࢅۉ‬ኟ‫֡׉‬ፕ‫ॺڦ‬ᅱस٪ഗยዃྺǖ 0x0002 MSB D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 0 0 0 0 0 0 0 0 0 0 D5 CDIV D4 D3 D2 D1 LSB D0 0 PD LPWR 1 D1PD ՗16. ੦዆स٪ഗ2‫ڦ‬࿋ࠀీ௮ຎ ࿋! ᆅগఁ‫׬‬ 5 CDIV 3 2 PD LPWR ௮ຎ ้ዓ‫ݴ‬ೕഗ࿋ăُ࿋ยዃׂิాևICLK‫ڦ‬MCLK႑ࡽ‫ݴڦ‬ೕԲăยዃCDIV= 0้LjMCLK੗ํ၄2‫ݴ‬ೕă සࡕCDIV= 1LjሶICLKೕ୲ᇑMCLK၎‫ڪ‬ă ู‫ۉ‬ăُ࿋ዃ1ॽ๑AD7760৊෇ู‫ۉ‬ఇ๕Ljࠀࡼই዁6.35 mWă ‫ࡼࠀگ‬ăසࡕُ࿋ዃ1LjሶAD7760ሞ‫ࡼࠀگ‬ఇ๕ူ߾ፕăࠀࡼই‫گ‬LjሯำႠీူই6 dBă 1 0 1 D1PD ॽ1ႀ෇ُ࿋ă ֶ‫ٷݣݴ‬ഗู‫ۉ‬ăُ࿋ዃ1ॽ๑ೌాֶ‫ٷݣݴ‬ഗ৊෇ู‫ۉ‬ጒༀă Rev. A | Page 33 of 36 AD7760 ጒༀस٪ഗ(ኻ‫)܁‬ MSB D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 PART 1 PART 0 DIE 2 DIE 1 DIE 0 0 LPWR OVR DL_OK FILTOK UFILT D4 BYP F3 D3 BYP F1 D2 D1 LSB D0 DEC2 DEC1 DEC0 ՗17. ጒༀस٪ഗ࿋ࠀీ௮ຎ ࿋ 15, 14 13 to 11 10 9 8 7 ᆅগఁ‫׬‬ PART [1:0] DIE [2:0] 0 LPWR OVR DL_OK 6 FILTOK 5 4 3 2 to 0 UFILT BYP F3 BYP F1 DEC [2:0] ௮ຎ ׂ೗႙ࡽă‫ܔ‬ᇀAD7760Ljኄၵ࿋๟࢛ۨփՎ‫ڦ‬ă ႊೌՊࡽăኄၵ࿋‫ݒ‬ᆙ‫ړ‬മAD7760‫ڦ‬ႊೌՊࡽLjᆩᇀဣཥాև๎՚ă ُ࿋ዃ0ă ‫ࡼࠀگ‬ăසࡕAD7760ሞ‫ࡼࠀگ‬ఇ๕ူ߾ፕLjሶُ࿋ዃ1ă සࡕ‫ړ‬മ‫ڦ‬ఇె๼෇‫ړࡗג‬മ‫ג‬ଉ‫ײ‬ពኵLjሶُ࿋ዃ1ă ॽᅃ߲ᆩࢽۨᅭ୳հഗူሜ‫ڟ‬AD7760้Ljׂࣷิᅃ߲ၯᄓࢅăُၯᄓࢅᇑሞဣຕኮࢫူሜ‫ڦ‬ၯᄓࢅ৊ႜԲ ডăසࡕܾኁᅃዂLjሶُ࿋ዃ1ă සࡕᅃ߲ᆩࢽۨᅭ୳հഗኟሞ๑ᆩዐLjሶ୳հഗဣຕཚࡗ޿୳հഗ้Ljׂࣷิᅃ߲ၯᄓࢅăُၯᄓࢅᇑူሜ‫ڦ‬ ၯᄓࢅ৊ႜԲডăසࡕܾኁᅃዂLjሶُ࿋ዃ1ă සࡕᅃ߲ᆩࢽۨᅭ୳հഗኟሞ๑ᆩዐLjሶُ࿋ዃ1ă ಖୟ୳հഗ3ăසࡕཚࡗยዃ੦዆स٪ഗ1ዐ‫ڦ‬၎࠲࿋ઠಖୟ୳հഗ3Ljُ࿋ᄺࣷዃ1ă ಖୟ୳հഗ1ăසࡕཚࡗยዃ੦዆स٪ഗ1ዐ‫ڦ‬၎࠲࿋ઠಖୟ୳հഗ1Ljُ࿋ᄺࣷዃ1ă ؏ൽ୲ăኄၵ࿋‫ܔ‬ᆌᇀ੦዆स٪ഗ1ዐยዃ‫ڦ‬၎ᆌ࿋ă ฿ۙस٪ഗ—‫ں‬኷0x0003 ‫ג‬ଉ‫ײ‬स٪ഗ—‫ں‬኷0x0005 ‫ݥ‬࿋ᆙพLjఐණኵǖ0x0000 ‫ݥ‬࿋ᆙพLjఐණኵǖ0xCCCC ฿ۙस٪ഗ֑ᆩܾ৊዆ցஓ՗๖݆Ljժঢ়ࡗ‫ٷݣ‬Lj๑‫ڥ‬ 0x7FFF(ፌ ‫ ٷ‬ኟ ኵ )ࢅ 0x8000(ፌ ‫ ޶ ٷ‬ኵ )‫ ݴ‬՚ ‫ ܔ‬ᆌ ᇀ +0.78125%ࢅ−0.78125%‫ڦ‬฿ۙă฿ۙၯኟሞሺᅮၯኟኮࢫ ᆌᆩă๑ᆩ1.25‫ڦ‬ఐණሺᅮኵLjժ्ยएጚ‫ۉ‬უྺ4.096 V ้Lj฿ۙၯኟ‫ྷݔ‬ሀྺ±25 mVă ‫ג‬ଉ‫ײ‬स٪ഗኵᇑ‫ڼ‬ᅃ߲؏ൽ୳հഗ‫ڦ‬๼‫؜‬৊ႜԲডLjᅜ इ‫ڥ‬ᅃ߲ਏᆶፌၭ‫د‬խჽ‫ࡗڦ׿‬ሜኸ๖ăႴሞඪࢆሺᅮई ฿ۙۙኝኮമԲডăఐණኵྺ0xCCCCLj‫ܔ‬ᆌᇀVREF‫ڦ‬80% )ሎႹ‫ڦ‬ፌ‫ٷ‬ఇె๼෇‫*ྷݔ‬ă्ยVREF = 4.096 VLj‫ړ‬๼෇‫ۉ‬ უ‫ࡗג‬ሀ6.55 V ‫ރރ‬ኵֶ‫ۉݴ‬უ้Ljُ࿋ዃ1ăᅃ‫גڋ‬ଉ‫ײ‬ ࿋ዃ1LjAD7760๼‫؜‬ጒༀ࿋ዐ‫ڦ‬DVALID࿋৽ࣷዃ0Ljཞᄣ ՗๖๼෇ᅙ‫ג‬ଉ‫ײ‬ă൩ጀᅪLjසࡕᅜۙ዆ഗ໏୲৊ႜ຺߲ ᅜฉ૶Ⴤ֑ᄣLj਩‫ݒ‬ᆙఇె๼෇‫ۉ‬უ‫ࡗג‬VREF‫ڦ‬100%Ljሶ ‫ג‬ଉ‫ײ‬࿋૬नዃ1ă ሺᅮस٪ഗ—‫ں‬኷0x0004 ‫ݥ‬࿋ᆙพLjఐණኵǖ0xA000 ሺᅮस٪ഗঢ়ࡗ‫ٷݣ‬Lj๑‫ڥ‬0x8000‫ܔ‬ᆌᇀ1.0‫ڦ‬ሺᅮăُस ٪ഗ‫ڦ‬ఐණኵྺ1.25(0xA000)ă‫ړ‬๼෇ྺVREF‫ڦ‬80%Ljन֑ ᆩፌ‫ٷ‬ఇె๼෇‫(ྷݔ‬VREF‫ރރ‬ኵ‫ڦ‬±80%)้Ljُఐණኵॽ ׂิ஢ଉ‫ײ‬ຕጴ๼‫؜‬ă Rev. A | Page 34 of 36 AD7760 ྔႚ؅٫ 0.75 0.60 0.45 12.20 12.00 SQ 11.80 1.20 MAX 64 49 1 49 64 1 48 48 PIN 1 10.20 10.00 SQ 9.80 TOP VIEW (PINS DOWN) 6.00 BSC SQ EXPOSED PAD 0° MIN 1.05 1.00 0.95 0.15 0.05 SEATING PLANE 0.20 0.09 7° 3.5° 0° 0.08 MAX COPLANARITY BOTTOM VIEW 16 33 17 32 VIEW A (PINS UP) 33 32 0.50 BSC LEAD PITCH VIEW A 16 17 0.38 0.32 0.22 ROTATED 90° CCW COMPLIANT TO JEDEC STANDARDS MS-026-ACD-HD ཮59. 64ᆅগ஋୞ࡰಎĂ‫ג‬ԋ຺‫ݛ‬Ռೝ‫ހ‬ጎ[TQFP_EP](SV-64-2) ؅٫(‫ڇ‬࿋ǖmm) ۩ࠔኸళ ႙ࡽ AD7760BSVZ 1 AD7760BSVZ-REEL1 EVAL-AD7760EB 1 ࿒‫ྷݔ܈‬ −40°C ዁ +85°C −40°C ዁ +85°C ‫ހ‬ጎ௮ຎ 64ᆅগ஋୞ࡰಎĂ‫ג‬ԋ຺‫ݛ‬Ռೝ‫ހ‬ጎ(TQFP_EP) 64ᆅগ஋୞ࡰಎĂ‫ג‬ԋ຺‫ݛ‬Ռೝ‫ހ‬ጎ(TQFP_EP) ೠࠚӱ Z = ࿮തഗॲă Rev. A | Page 35 of 36 ‫ހ‬ጎ჋ၜ SV-64-2 SV-64-2 AD7760 ጀ๥ ©2006 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D04975-0-8/06(A) Rev. A | Page 36 of 36