analog to digital converters part 1

... 1 1 1 1 1 1 a4 = 1 1 1 1 1 b4 = 1 1 1 1 1 1 a5 = 1 1 1 1 1 b5 = 1 1 1 1 a6 = 1 1 1 1 1 b6 = 1 1 1 1 1 1 a7 = 1 1 1 1 1 b7 = 1 1 1 1 1 S0 = 1, ⎡ 1 ⎢ 1 ⎢ ... (n) = 1, 1, 1, 1, 1, 1, 1, 1, , a1 (n) = b1 (n) = 1, 1, 1, 1, 1, 1, 1, 1, , a4 (n) = b4 (n) = 1, 1, 1, 1, 1, 1, 1, 1, , (27) a5 (n) = b5 (n) = 1, 1, 1, 1, 1, 1, 1, 1, ... = 1, 1, 1, 1, 1, 1, 1, 1, , a7 (n) = b7 (n) = 1, 1, 1, 1, 1, 1, 1, 1, The vectors ak and bk become a0 = b0 = 1 1 1 1 a1 = −b1 = 1 1 1 1 a2 = b3 = 1 1 1 1 1 a3 = −b2 = 1...

Ngày tải lên: 22/06/2014, 19:20

... Slope Method 010 0 01 000 x (t) 11 1 11 0 10 1 Figure 2-2 Conventional Analog- to- Digital Conversion Process Figure 2-2 illustrates the conventional A/D conversion process that transforms an analog input ... = -12 f s 3f s Eqn 3-4 The concepts discussed in this section apply in general to A/D converters s 3-2 MOTOROLA Analog Levels 0 .12 5 Digital Words 00 01 0.000 0000 q -0 .12 5 11 11 ... Noise) integrator + X(z) Σ - Σ I(z) Y(z) quantizer z -1 (a) Q integrator + X(z) Σ X - Yz -1 - – z 1 -1 X - Yz -z -1 + + Σ -1 Y = Q +X - Yz = > X + Q (1 -z -1) -z -1 quantizer z -1 Y(z) input...

Ngày tải lên: 04/07/2014, 07:24

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Ngày tải lên: 11/01/2016, 16:55

... 00, 01, 10 , and 11 What if you have bits? You now can represent eight different levels: 000, 0 01, 010 , 011 , 10 0, 10 1, 11 0, and 11 1 Think of it as follows When you had bits, you were able to represent ... factor: ADPS[2:0] = 10 0: division factor: 16 ADPS[2:0] = 10 1: division factor: 32 ADPS[2:0] = 11 0: division factor: 64 ADPS[2:0] = 11 1: division factor: 12 8 3.4.2.3 ADC Data Registers (ADCH and ... voltage reference REFS[0 :1] = 01: AVCC with external capacitor at the AREF pin REFS [1: 0] = 10 : reserved REFS [1: 1] = 11 : internal 2.56-VDC voltage reference with an external capacitor at the AREF pin...

Ngày tải lên: 29/09/2013, 20:20

... applied to an analog- to- digital converter (A/D) circuit where the sampled analog signal is converted to a digitally coded signal The digital signal is then applied to c 19 99 by CRC Press LLC the digital ... references [1] –[5] c 19 99 by CRC Press LLC 5.4 Analog- to- Digital Converter Architectures The analog- to- digital (A/D) converter, also known as an ADC, encodes an analog signal into a digital word ... York, 19 89 [6] Lee, S.H, Song B.S, Digital- domain calibration of multistep analog- to- digital converters, IEEE J Solid-State Circuits, 27: (12 ) 16 79 16 88, Dec., 19 92 [7] Inose, H and Yasuda, Y.,...

Ngày tải lên: 27/01/2014, 03:20

... that S(nv) S (n − 1) v = (n 1) uv xt t =0 (n 1) v |L| j =1 exp(−η t =0 |L| i =1 exp − η (n 1) v exp(−η t=0 xt (n 1) v |L| j =1 exp(−η t =0 nv |L| = k =1 × exp −η t =(n 1) v |L| = k =1 k w(n 1) u exp − η = ... level set is used to quantize the amplitude, and VFS = 2Vmax , then we can guarantee one LC sample per interval of τ if 10 −5 14 13 12 MSE (V2 ) 11 4 10 Length of signal (T) 12 14 10 3 When this ... from a larger set of 15 levels: MSE (V2 ) = {−0 .17 5, −0 .15 , −0 .12 5, −0 .1, −0.075, −0.05, −0.025, 0, 0.025, 0.05, 0.075, 0 .1, 0 .12 5, 0 .15 , 0 .17 5} (15 ) In other words, only comparators are turned on...

Ngày tải lên: 22/06/2014, 01:20

... Processing 10 0 10 −2 10 −2 PSD (a.u.) 10 2 10 0 PSD (a.u.) 10 2 10 −4 10 −4 10 −6 10 −6 10 −8 10 −8 10 10 10 0 10 1 10 2 10 3 10 4 Frequency (Hz) 10 5 10 6 10 10 10 0 10 1 10 2 (a) 10 3 10 4 Frequency (Hz) 10 5 10 6 (b) ... 10 2 10 −4 10 −6 10 −4 10 −6 10 −8 10 −8 10 10 10 10 10 12 10 0 10 1 10 2 10 3 10 4 10 5 10 12 10 0 10 6 10 1 Frequency (Hz) 10 2 10 3 10 4 10 5 10 6 Frequency (Hz) (a) (b) Figure 11 : The power spectral density for ... Figure 10 The noise-shaping cutoff is evident at approximately 40 kHz Analog- to- Digital Conversion Using IF Networks 2073 10 0 10 −2 10 −2 PSD (a.u.) 10 2 10 0 PSD (a.u.) 10 2 10 −4 10 −6 10 −4 10 −6 10 −8 10 −8...

Ngày tải lên: 23/06/2014, 01:20

... of DCLK DCLK 10 11 12 13 14 15 15 16 Data is clocked out of A/D Converter on falling edges DOUT HI-Z NULL BIT B 11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0 HI-Z B1 LSB first data begins to come out MCU ... of DCLK DCLK 10 11 12 13 14 15 16 Data is clocked out of A/D Converter on falling edges DOUT HI-Z NULL BIT B 11 B10 B9 B8 B6 B7 B5 B4 B3 B2 B1 B0 B1 B2 HI-Z LSB first data begins to come out MCU ... B’0 010 010 0’ DS00 719 A-page 14  19 99 Microchip Technology Inc AN 719 movwf movlw banksel movwf return TXSTA B 10 010 000’ RCSTA RCSTA ; Initialize SSP Module Init_SSP #ifdef mode 11 movlw B’0 011 0000’...

Ngày tải lên: 11/01/2016, 11:34

... 00088 00089 00090 000 91 00092 00093 00094 00095 00096 00097 00098 00099 0 010 0 0 010 1 0 010 2 0 010 3 0 010 4 0 010 5 0 010 6 0 010 7 0 010 8 0 010 9 0 011 0 0 011 1 0 011 2 0 011 3 0 011 4 0 011 5 0 011 6 0 011 7 ; movwf tris BSF ... DS00546E-page 15 AN546 0 015 0 016 0 016 0 017 0 018 0 019 001A 001B 001B 001C 001D 2024 10 10 202D 10 88 15 08 17 8B 18 10 2 816 281B 001E 001E 001F 0020 00 21 0022 0023 1C88 0009 0809 0086 14 10 0008 0024 0024 0025 ... 01. 40 Released LOC OBJECT CODE VALUE 00000 010 000000 01 00000002 0000 0000 2 810 0004 0004 281E 0 010 0 010 0 010 3000 0 011 0086 0 012 16 83 0 013 0086 0 014 12 83 0 015 0 016 0 016 0 017 0 018 0 019 001A 001B...

Ngày tải lên: 11/01/2016, 11:50

Ngày tải lên: 27/02/2014, 17:34

Ngày tải lên: 27/02/2014, 17:50

... of what you have in order to tell the story 22 Digital Painting vessels 10 Blood WorldMags.net 11 Bottom lid WorldMags.net The complete guide to Digital Painting Tutorial Get your curlers Improve ... complete guide to Digital Painting “It is important to use a grainy brush to pick up the texture as you paint” image 01 Select the 02 Save canvas 03 Apply to WorldMags.net Digital Painting 11 WorldMags.net ... they’re there to you a good deed by keeping dust out of your eyes, but they sure are tricky to paint Here are some tips to help you along 13 Shadows? Here? 12 Bottom lashes 01 Brush creator 14 Upper...

Ngày tải lên: 27/02/2014, 18:24

... way to the left Now go to Effects>Tonal Control>Bright And Contrast Increase the Contrast slider to separate the individual tones more 14 15 Tone and contour Initial modelling 16 Shadow, midtone ... think too much about application and don’t over-detail your images too much 15 Back to front washes 17 Laying down 16 Large blocks of colour 19 18 0 Working on the figure Digital Painting 18 Light ... routine to position, rotate and scale the pencil 18 6 Digital Painting 17 Sharp as a tack magic 18 Eraser 19 Define the surface WorldMags.net WorldMags.net The complete guide to Digital Painting 21 Simple...

Ngày tải lên: 27/02/2014, 18:37

... Noise 11 Signal and Graph Terminology 11 Mean and Standard Deviation 13 Signal vs Underlying Process 17 The Histogram, Pmf and Pdf 19 The Normal Distribution 26 Digital Noise Generation ... Inverse DFT 15 2 Analysis, Calculating the DFT 15 6 Duality 16 1 Polar Notation 16 1 Polar Nuisances 16 4 Chapter Applications of the DFT 16 9 Spectral Analysis of Signals 16 9 Frequency ... Algorithm 11 6 The Sum of Weighted Inputs 12 2 Chapter Properties of Convolution 12 3 Common Impulse Responses 12 3 Mathematical Properties 13 2 Correlation 13 6 Speed 14 0 Chapter...

Ngày tải lên: 13/09/2012, 10:21

... −0 .12 5 −0 .12 5 0.000 0 .12 5 0.375 0.500 0.500 0.250 0 .12 5 0 .12 5 0 .12 5 Binary Number Form 1 1 0 0 0 0 000 010 0 01 0 01 000 0 01 011 10 0 10 0 010 0 01 0 01 0 01 INTRODUCTION 7/8 6/8 5/8 4/8 3/8 2/8 1/ 8 ... analog LC filter + − + − Figure 1. 12 + − + + − v1 v2 + − − Figure 1. 13 An active-RC lowpass analog filter  21 HISTORY OF FILTER DESIGN f1 f2 f1 f1 f2 f1 f2 f2 + v1 − + − f1 f2 f2 f1 f1 f1 f2 f1 ... quantizing the signals to their binary form, on the frequency response of the TABLE 1. 1 Bit Binary Numbers and their Decimal Equivalents Binary Form 11 1 11 0 10 1 10 0 011 010 0 01 000 Decimal Value...

Ngày tải lên: 13/09/2012, 10:21

... Mail, February 15 , 19 93; Respect For Animals for the illustration on p 11 Illustrations by Dave Bowyer: pp 15 (top), 25, 41, 57, 63, 71; Graham Cox: pp 13 , 15 (bottom), 37, 43 (top), 45, 47 59, ... 75, 87 (bottom), 89, 10 5, 10 7; Gary Wing: pp 9, 11 , 12 , 23, 39, 43 (bottom), 49, 65, 81, 83, 87 (top), 91, 93, 95, 97 Introduction Summary for those in a hurry • Structure: There are 26 topic-related ... going to be able to surmount the problem If you ask them to pretend to be part of a doctors' ethics committee, they can't be expected to know what a real doctor would do, but that shouldn't stop...

Ngày tải lên: 03/10/2012, 15:01

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Ngày tải lên: 01/07/2013, 01:25

... −0 .12 5 −0 .12 5 0.000 0 .12 5 0.375 0.500 0.500 0.250 0 .12 5 0 .12 5 0 .12 5 Binary Number Form 1 1 0 0 0 0 000 010 0 01 0 01 000 0 01 011 10 0 10 0 010 0 01 0 01 0 01 INTRODUCTION 7/8 6/8 5/8 4/8 3/8 2/8 1/ 8 ... analog LC filter + − + − Figure 1. 12 + − + + − v1 v2 + − − Figure 1. 13 An active-RC lowpass analog filter  21 HISTORY OF FILTER DESIGN f1 f2 f1 f1 f2 f1 f2 f2 + v1 − + − f1 f2 f2 f1 f1 f1 f2 f1 ... quantizing the signals to their binary form, on the frequency response of the TABLE 1. 1 Bit Binary Numbers and their Decimal Equivalents Binary Form 11 1 11 0 10 1 10 0 011 010 0 01 000 Decimal Value...

Ngày tải lên: 29/09/2013, 21:20