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AD5933中文pdf
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AD5933 中文 pdf The AD5933 is a high precision impedance converter system solution that combines an on-board frequency generator with a 12-bit, 1 MSPS, analog-to-digital converter (ADC).
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ADIዐ࿔Ӳຕ֩ᆈ࿔Ӳຕ֩ڦᅳ࿔Lj൩ଌᅳዐీ٪ሞڦᇕჾፇኯᅳٱဃLjADIփܔᅳዐ٪ሞڦֶᅴᆯׂُิڦٱဃሴăසႴඓණඪࢆَᇕڦጚඓႠLj൩֖ADI༵ࠃ
ڦፌႎᆈ࿔Ӳຕ֩ă
1 MSPSĂ12࿋ፆ
ገ࣑ഗࢅྪஏݴဆᅏ
AD5933
Rev. B
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. Specications 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 ©2005–2010 Analog Devices, Inc. All rights reserved.
ࠀీ
VDD/2
DAC
Z(ω)
SCL
SDA
DVDD
A
VDDMCLK
AGND DGND
R
OUT
VOUT
AD5933
RFB
VIN
05324-001
1024-POINT DFT
I
2
C
INTERFACE
IMAGINARY
REGISTER
REAL
REGISTER
OSCILLATOR
DDS
CORE
(27 BITS)
TEMPERATURE
SENSOR
ADC
(12 BITS)
LPF
GAIN
1
༬Ⴀ
ՊײރރኵۉუLjೕ୲ፌߛٳ100 kHz
Պײೕ୲௮ࠀీࢅزႜI2Cথ
ೕ୲ݴՐ୲ǖ27࿋(<0.1 Hz)
ፆ֪ଉݔྷǖ1 kΩ10 MΩ
૧ᆩۉୟ֪ଉ100 Ω1 kΩፆ
ాև࿒܈دߌഗ(±2°C)
ాևဣཥ้ዓၜ
၎࿋֪ଉࠀీ
ဣཥ܈ǖ0.5%
ۉᇸۉუǖ2.7 V5.5 V
࿒܈ݔྷǖ−40°C+125°C
16ᆅগSSOPހጎ
ᆌᆩ
ۉࣅბݴဆ
ิۉፆݴဆ
ፆೕݴဆ
ްፆ֪ଉ
ޫ์ࢅԍࢺยԢ
ิᅅბࢅഛכدߌഗ
ৎײدߌ
֪
ଙႠዊݴဆ
ଙ/ۉጒༀ
߁ຎ
AD5933ᅃߛ܈ڦፆገ࣑ഗဣཥݛӄLjೌฉ
ׯೕ୲݀ิഗᇑ12࿋Ă1 MSPSڦఇຕገ࣑ഗ(ADC)ăᆩೕ୲
݀ิഗׂิڦ႑ࡽઠྔևްፆLjྔևፆڦၚᆌ႑
ࡽᆯೌฉADCႜ֑ᄣLjࢫᆯೌฉDSPႜොޱᄾ
Վ࣑(DFT)تăDFT໙݆ሞ߲ೕ୲ฉݓ࣮ᅃ߲ํև(R)
ຕጴࢅᅃ߲Ⴕև(I)ຕጴă
ၯጚኮࢫLjඹᅟ໙߳௮ೕ୲ۅڦፆޗ܈ࢅ၎ܔ၎
࿋ă໙૧ᆩํևࢅႵև٪ഗాඹሞೌྔྜׯLj٪
ഗాඹᅜٗزႜI2Cথ܁ൽă
ADIࠅິ࣏༵ࠃᅃૌຼഗAD5934Ljᅃ2.7 V
5.5 VĂ250 kSPSĂ12࿋ፆገ࣑ഗLjాዃ࿒܈دߌഗLjժ
֑ᆩ16ᆅগSSOPހጎă
AD5933
Rev. B | Page 2 of 44
ణ
༬Ⴀ ................................................................................................... 1
ᆌᆩ ................................................................................................... 1
߁ຎ ................................................................................................... 1
ࠀీ ........................................................................................... 1
Ⴊ۩૦๏ ........................................................................................... 3
ຍࡀ߭ ........................................................................................... 4
! I
2
Cزႜথ้Ⴞࡀ߭ ........................................................... 6
ܔፌٷܮۨኵ ............................................................................. 7
! ESDয়ߢ ................................................................................... 7
ᆅগದዃࢅࠀీ௮ຎ ..................................................................... 8
ۆ႙߾ፕ༬Ⴀ .................................................................................. 9
ຍᇕ ................................................................................................. 12
ဣཥ௮ຎ ........................................................................................ 13
! ݀พ .................................................................................... 14
! ೕ୲௮ంସႾଚ .............................................................. 15
! থ .................................................................................... 15
! DFT֡ፕ ................................................................................ 15
! ဣཥ้ዓ ................................................................................ 16
! ࿒܈دߌഗ ............................................................................ 16
! ࿒܈ገ࣑ၘ ....................................................................... 16
! ࿒܈ኵ٪ഗ ....................................................................... 16
! ࿒܈ገ࣑ࠅ๕ ....................................................................... 16
ፆ໙ ........................................................................................ 17
! ޗ܈໙ ................................................................................ 17
! ሺᅮဣຕ໙ ....................................................................... 17
! ૧ᆩሺᅮဣຕႜፆ໙ ............................................. 17
! ሺᅮဣຕໜೕ୲ڦՎࣅ ...................................................... 17
! ଇۅၯጚ ................................................................................ 18
! ଇۅሺᅮဣຕ໙ .............................................................. 18
! ሺᅮဣຕยዃದዃ .............................................................. 18
! ዘႎ໙ሺᅮဣຕ .............................................................. 18
! ሺᅮဣຕ࿒܈Վࣅ୲ .......................................................... 19
! ፆဃֶ ................................................................................ 19
! ፆ၎࿋֪ଉ ....................................................................... 21
ኴႜೕ୲௮ ................................................................................ 23
٪ഗ ........................................................................................ 24
! ٪ഗ(٪ഗں0x80Ă٪ഗں
0x81) ........................................................................................ 24
! ഐ๔ೕ୲٪ഗ(٪ഗں0x82Ă٪ഗں0x83Ă
٪ഗں0x84) .................................................................. 25
! ೕ୲ሺଉ٪ഗ(٪ഗں0x85Ă٪ഗں0x86Ă
٪ഗں0x87) .................................................................. 26
! ሺଉຕ٪ഗ(٪ഗں0x88Ă٪ഗں
0x89) ........................................................................................ 26
! ૬้ዜຕ٪ഗ(٪ഗں0x8AĂ٪ഗں
0x8B) ....................................................................................... 26
! ጒༀ٪ഗ
(٪ഗں0x8F) .......................................... 27
! ࿒܈ຕ٪ഗ(16࿋—٪ഗں0x92Ă٪ഗں
0x93) ........................................................................................ 27
! ํኵࢅႵኵ٪ഗ(16࿋—٪ഗں0x94Ă٪ഗں
0x95Ă٪ഗں0x96Ă٪ഗں0x97) .............. 27
زႜጺ၍থ ................................................................................ 28
!ཚᆩI
2
C้Ⴞ .......................................................................... 28
!܁ႀAD5933 .......................................................................... 29
! ႀ .................................................................................... 29
! ܁֡ፕ .................................................................................... 30
ۆ႙ᆌᆩ ........................................................................................ 31
! ֪ଉၭፆ ............................................................................ 31
! ิᅅბǖظეᅂፆ֪ଉ ........................................ 33
! دߌഗ/ްፆ֪ଉ ............................................................. 33
! ۉፆೕݴဆ ................................................................... 34
ስᆩᇀAD5933ڦጚۉუᇸ ................................................ 35
քࢅದዃ .................................................................................... 36
! ۉᇸಖୟࢅথں ................................................................... 36
ೠࠚӱ ............................................................................................. 37
! ๑ᆩೠࠚӱ ............................................................................ 37
! ᇱ႙ย൶ᇘ ....................................................................... 37
!ৗና(XO)ᇑྔև้ዓ .......................................................... 37
! ᇱ .................................................................................... 38
! ଙൣڇ ................................................................................ 42
ྔႚ٫ ........................................................................................ 43
! ۩ࠔኸళ ................................................................................ 43
AD5933
Rev. B | Page 3 of 44
Ⴊ۩૦๏
20102ሆ—Ⴊ۩ӲAႪ۩ӲB
Ⴊ߀“߁ຎ”ևݴ .............................................................................. 1
20085ሆ—Ⴊ۩Ӳ0Ⴊ۩ӲA
Ⴊ߀ք .................................................................................... ཚᆩ
Ⴊ߀1 ............................................................................................. 1
Ⴊ߀1 ............................................................................................. 4
Ⴊ߀17 ......................................................................................... 13
Ⴊ߀“ဣཥ௮ຎ”ևݴ ................................................................... 13
Ⴊ߀19 ......................................................................................... 14
Ⴊ߀24 ......................................................................................... 18
Ⴊ߀“ፆဃֶ”ևݴ ................................................................... 19
ሺ“ፆ၎࿋֪ଉ”ևݴ ........................................................... 21
Ⴊ߀“٪ഗ”ևݴ ................................................................... 24
ሺ“֪ଉၭፆ”ևݴ ............................................................... 31
Ⴊ߀18 ......................................................................................... 35
ሺ“ೠࠚӱ”ևݴ
........................................................................ 37
Ⴊ߀“۩ࠔኸళ”ևݴ ................................................................... 43
20059ሆ—Ⴊ۩Ӳ0ǖ؛๔Ӳ
AD5933
Rev. B | Page 4 of 44
ຍࡀ߭
1
֖ຕ
Y
1
ڇ࿋ ֪ཉ/ጀ
ፌၭኵ ۆ႙ኵ ፌٷኵ
ဣཥ
ፆݔྷ 1 K 10 M Ω
100 1 kႴᄲܮྔ࣐؋ۉୟLj
֪ଉၭፆևݴ
ဣཥጺ܈ 0.5 %
2 VރރኵۉუLj
30 kHzೕ୲Lj200 k
ፆথሞᆅগ5ᇑᆅগ6ኮ
ဣཥፆဃֶᅎ 30 ppm/°C
݀พ
ೕ୲ݔྷ
2
1 100 kHz
ೕ୲ݴՐ୲ 0.1 Hz
૧ᆩDDSຍํ၄0.1 HzᅜူݴՐ୲
MCLKೕ୲ 16.776 MHz ဣཥ้ዓፌߛೕ୲
ాևናږഗೕ୲
3
16.776 MHz ాև้ዓೕ୲
ాևናږഗ࿒܈ဣຕ 30 ppm/°C
݀พۉუ
ݔྷ1
ୁۉუ
4
1.98 V p-p
ۉუݴք֖4
ୁೋዃ
5
1.48 V
ୁ႑ࡽڦୁೋዃǗ
5
ୁፆ 200 Ω T
A
= 25°C
VOUTں܌ୟۉୁ ±5.8 mA T
A
= 25°C
ݔྷ2
ୁۉუ
4
0.97 V p-p 6
ୁೋዃ
5
0.76 V
႑ࡽڦୁೋዃǗ
7
ୁፆ 2.4 kΩ
VOUTں܌ୟۉୁ ±0.25 mA
ݔྷ3
ୁۉუ
4
0.383 V p-p 8
ୁೋዃ
5
0.31 V
႑ࡽڦୁೋዃǗ
9
ୁፆ 1 kΩ
VOUTں܌ୟۉୁ ±0.20 mA
ݔྷ4
ୁۉუ
4
0.198 V p-p 10
ୁೋዃ
5
0.173 V
႑ࡽڦୁೋዃǗ
11
ୁፆ 600 Ω
VOUTں܌ୟۉୁ ±0.15 mA
ဣཥୁ༬Ⴀ
႑ሯԲ 60 dB
ጺၿհ฿ኈ −52 dB
ሗොۯༀݔྷ
ټ(0 MHz1 MHz) −56 dB
ټ(±5 kHz) −85 dB
أݥଷᆶຫLjVDD = 3.3 VLjMCLK = 16.776 MHzLj2 VރރኵۉუLj30 kHzೕ୲Lj200 kΩፆথሞᆅগ5ᇑᆅ
গ6ኮLjݒઍۉፆ200 kΩথሞᆅগ4ᇑᆅগ5ኮLjPGAሺᅮ= ×1ă
AD5933
Rev. B | Page 5 of 44
֖ຕ
Y
1
ڇ࿋ ֪ཉ/ጀ
ፌၭኵ ۆ႙ኵ ፌٷኵ
থ
ۉୁ 1 nA VINᆅগ
ۉඹ
6
0.01 pF VINᇑGNDኮڦᆅগۉඹ
ݒઍۉඹ(C
FB
) 3 pF
ۉୁۉუݣٷഗዜྷڦݒઍۉඹǗ
ᇑݒઍۉፆժ
ఇຕገ࣑ഗ
6
ݴՐ୲
12 ࿋
֑ᄣ୲
250 kSPS ADCཾུ୲
࿒܈دߌഗ
܈ ±2.0 °C −40°C+125°C࿒܈ݔྷ
ݴՐ୲ 0.03 °C
࿒܈ገ้࣑ 800
ڇᅃ࿒܈֪ଉڦገ้࣑
இ
ߛۉೝ(V
IH
) 0.7 × VDD
گۉೝ(V
IL
) 0.3 × VDD
ۉୁ
7
1 µA T
A
= 25°C
ۉඹ 7 pF T
A
= 25°C
ۉᇸᄲ൱
VDD 2.7 5.5 V
IDD(ኟఇ๕) 10 15 mA VDD = 3.3 V
17 25 mA VDD = 5.5 V
IDD(ځఇ๕) 11 mA
VDD = 3.3 VǗ٪ഗ
(٪ഗں0X80Ă٪ഗں
0X81)ևݴ
16 mA VDD = 5.5 V
IDD(ูۉఇ๕) 0.7 5 µA VDD = 3.3 V
1 8 µA VDD = 5.5 V
1
Y࿒܈ݔྷྺ−40°C+125°CLjۆ႙ኵ25°Că
2
ཚࡗۙኝ༵ࠃߴAD5933ڦ้ዓLjᅜইگೕ୲ڦူ၌ă
3
࠲ᇀփཞ࿒܈ူాևናږഗڦೕ୲ݴք൧Lj֖14Ă15ࢅ16ă
4
ୁۉუڦރރኵᇑۉᇸۉუװԲ૩࠲ဣLjසူ๕๖ǖ
ۉუ(V p-p) = [2/3.3] × VDD
ഄዐVDD๖ۉᇸۉუă
5
ۉუڦୁೋዃኵᇑۉᇸۉუװԲ૩࠲ဣLjසူ๕๖ǖ
ೋዃۉუ(V) = [2/3.3] × VDD
ഄዐVDD๖ۉᇸۉუă
6
ཚࡗยኙԍኤLj࿄ঢ়ิׂ֪ăVOUTᆅগڦۉඹڪᇀ
ᆅগۉඹأᅜۉୁۉუݣٷഗڦ࣍ሺᅮă
7
ᆅগ8Ăᆅগ15ࢅᆅগ16ዐڦۉୁેኵă
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