mixed signal & dsp design techniques 2003

[...]...I Motor Control I Codecs and DSPs in Voiceband and Audio Applications I A Sigma-Delta ADC with Programmable Digital Filter SECTION 10 HARDWARE DESIGN TECHNIQUES I Low Voltage Interfaces I Grounding in Mixed Signal Systems I Digital Isolation Techniques I Power Supply Noise Reduction and Filtering I Dealing with High Speed Logic INDEX MIXED- SIGNAL AND DSP DESIGN TECHNIQUES INTRODUCTION SECTION 1... previously derived using extensive DSP analysis (i.e.,sound source, microphone, preamp, ADC, etc.) 1.3 INTRODUCTION METHODS AND TECHNOLOGIES AVAILABLE FOR PROCESSING REAL-WORLD SIGNALS Signals may be processed using analog techniques (analog signal processing, or ASP), digital techniques (digital signal processing, or DSP) , or a combination of analog and digital techniques (mixed signal processing, or MSP)... Control Signal (Industrial Process Control) I Extract Signal From Noise (Filtering, Autocorrelation, Convolution) I Capture and Store Signal in Digital Format for Analysis (FFT Techniques) Figure 1.2 GENERATION OF REAL-WORLD SIGNALS In most of the above examples (the ones requiring DSP techniques) , both ADCs and DACs are required In some cases, however, only DACs are required where realworld analog signals... 1 SAMPLED DATA SYSTEMS SECTION 2 ADCs FOR DSP APPLICATIONS SECTION 3 DACs FOR DSP APPLICATIONS SECTION 4 FAST FOURIER TRANSFORMS SECTION 5 DIGITAL FILTERS SECTION 6 DSP HARDWARE SECTION 7 INTERFACING TO DSPs SECTION 8 DSP APPLICATIONS SECTION 9 HARDWARE DESIGN TECHNIQUES SECTION 10 INDEX INTRODUCTION SECTION 1 INTRODUCTION Walt Kester ORIGINS OF REAL-WORLD SIGNALS AND THEIR UNITS OF MEASUREMENT In... detectable, physical quantity, and information SIGNAL CHARACTERISTICS I Signal Characteristics N Signals are Physical Quantities N Signals are Measurable N Signals Contain Information N All Signals are Analog I Units of Measurement N Temperature: °C N Pressure: Newtons/m2 N Mass: kg N Voltage: Volts N Current: Amps N Power: Watts Figure 1.1 By their very nature, signals are analog , whether DC, AC, digital... accomplishing signal processing are shown in Figure 1.3 The top portion of the figure shows the purely analog approach The latter parts of the figure show the DSP approach Note that once the decision has been made to use DSP techniques, the next decision must be where to place the ADC in the signal path 1.4 INTRODUCTION ANALOG AND DIGITAL SIGNAL PROCESSING OPTIONS REAL WORLD SENSOR ANALOG CONDITIONING ANALOG SIGNAL. .. REAL-TIME SIGNAL PROCESSING I Digital Signal Processing; N ADC / DAC Sampling Frequency Limits Signal Bandwidth G (Don't forget Nyquist!) N ADC / DAC Resolution / Performance Limits Signal Dynamic Range N DSP Processor Speed Limits Amount of Digital Processing Available, Because: G All DSP Computations Must Be Completed During the Sampling Interval, 1 / fs, for Real-Time Operation! I Don't Forget Analog Signal. .. is another classification of signals, called digital, where the actual signal has been conditioned and formatted into a digit These digital signals may or may not be related to real-world analog variables Examples include the data transmitted over local area networks (LANs) or other high speed networks In the specific case of Digital Signal Processing (DSP) , the analog signal is converted into binary... digital techniques to solve the signal processing task at hand It is impossible to process real-world analog signals using purely digital techniques, since all sensors (microphones, thermocouples, strain gages, microphones, piezoelectric crystals, disk drive heads, etc.) are analog sensors Therefore, some sort of signal conditioning circuitry is required in order to prepare the sensor output for further signal. .. generated directly using DSP and DACs Video raster scan display systems are a good example The digitally generated signal drives a video or RAMDAC Another example is artificially synthesized music and speech In reality, however, the real-world analog signals generated using purely digital techniques do rely on information previously derived from the real-world equivalent analog signals In display systems, . DEVICES Practical Design Techniques for Sensor Signal Conditioning Practical Design Techniques for Power and Thermal Management High Speed Design Techniques Practical Analog Design Techniques Linear Design. processed using analog techniques (analog signal processing, or ASP), digital techniques (digital signal processing, or DSP) , or a combination of analog and digital techniques (mixed signal processing,. x0 y0 w0 h0" alt="" MIXED- SIGNAL AND DSP DESIGN TECHNIQUES a ANALOG DEVICES TECHNICAL REFERENCE BOOKS PUBLISHED BY PRENTICE HALL Analog-Digital Conversion Handbook Digital Signal Processing Applications