DMPX07f - School of Computer Science
... frequency masking is exploited by encoding accurately only the bands that will definitely be perceived. A strong tone at a particular frequency will partially or completely mask closely adjacent bands, and these adjacent bands can either be disregarded entirely or encoded using fewer bits than those ...
... frequency masking is exploited by encoding accurately only the bands that will definitely be perceived. A strong tone at a particular frequency will partially or completely mask closely adjacent bands, and these adjacent bands can either be disregarded entirely or encoded using fewer bits than those ...
Low Cost, Precision JFET Input Operational Amplifiers / ADA4000-1
... family. Each device returns to normal operation by bringing back the common-mode voltage. The cause of this effect is saturation of the input stage, which leads to the forward-biasing of a draingate diode. In noninverting applications, a simple fix for this is to insert a series resistor between the ...
... family. Each device returns to normal operation by bringing back the common-mode voltage. The cause of this effect is saturation of the input stage, which leads to the forward-biasing of a draingate diode. In noninverting applications, a simple fix for this is to insert a series resistor between the ...
HMC725LC3C
... designed to support data transmission rates of up to 13 Gbps, and clock frequencies as high as 13 GHz. All input signals to the HMC725LC3C are terminated with 50 Ohms to ground on-chip, and maybe either AC or DC coupled. The differential outputs of the HMC725LC3C may be either AC or DC coupled. Outp ...
... designed to support data transmission rates of up to 13 Gbps, and clock frequencies as high as 13 GHz. All input signals to the HMC725LC3C are terminated with 50 Ohms to ground on-chip, and maybe either AC or DC coupled. The differential outputs of the HMC725LC3C may be either AC or DC coupled. Outp ...
Input System Instability
... This simple approach to adding positive resistance to the input filter is therefore not the preferred method. However, the above analysis technique was helpful because it gave us a more circuit-oriented way of thinking about the system stability problem. ...
... This simple approach to adding positive resistance to the input filter is therefore not the preferred method. However, the above analysis technique was helpful because it gave us a more circuit-oriented way of thinking about the system stability problem. ...
Implementation of Digital Pulse Width Modulators using
... In this proposed system a new architecture is designed for Pulse Width Modulator using Digital Clock Manager (DCM) block which is already present in FPGA. Phase shifter, frequency synthesizer, delay lines are the basic operations performed by DCM block. One of the DCM clock output is given as an inp ...
... In this proposed system a new architecture is designed for Pulse Width Modulator using Digital Clock Manager (DCM) block which is already present in FPGA. Phase shifter, frequency synthesizer, delay lines are the basic operations performed by DCM block. One of the DCM clock output is given as an inp ...
ECE Laboratory Equipment Proficiency
... the connections will remain in place for a while. It may not be appropriate to use ordinary test probes, because these will only remain in place while they are held. It may be more appropriate to have connections using crocodile / alligator clips or some other method that will keep the connections i ...
... the connections will remain in place for a while. It may not be appropriate to use ordinary test probes, because these will only remain in place while they are held. It may be more appropriate to have connections using crocodile / alligator clips or some other method that will keep the connections i ...
ADADC80 数据手册DataSheet 下载
... reliability. Important performance characteristics of the ADADC80 include a maximum linearity error of ±0.012% at 25°C, maximum gain TC of 30 ppm/°C, typical power dissipation of 800 mW, and maximum conversion time of 25 μs. Monotonic operation of the feedback DAC guarantees no missing codes over th ...
... reliability. Important performance characteristics of the ADADC80 include a maximum linearity error of ±0.012% at 25°C, maximum gain TC of 30 ppm/°C, typical power dissipation of 800 mW, and maximum conversion time of 25 μs. Monotonic operation of the feedback DAC guarantees no missing codes over th ...
LIOB‑100/101/102/103
... DIs are fast binary inputs, which can also be used as counter inputs (S0). They follow the S0 specification for electric meters and have a sampling rate of 10 ms. They change state at a load of 195 Ω between the DI terminal and GND. Galvanically isolated sensors resp. switches must be connected. AO ...
... DIs are fast binary inputs, which can also be used as counter inputs (S0). They follow the S0 specification for electric meters and have a sampling rate of 10 ms. They change state at a load of 195 Ω between the DI terminal and GND. Galvanically isolated sensors resp. switches must be connected. AO ...
AD7866 数据手册DataSheet下载
... The conversion time is determined by the SCLK frequency. There are no pipelined delays associated with the part. The AD7866 uses advanced design techniques to achieve very low power dissipation at high throughput rates. With 3 V supplies and 1 MSPS throughput rate, the part consumes a maximum of 3.8 ...
... The conversion time is determined by the SCLK frequency. There are no pipelined delays associated with the part. The AD7866 uses advanced design techniques to achieve very low power dissipation at high throughput rates. With 3 V supplies and 1 MSPS throughput rate, the part consumes a maximum of 3.8 ...
MAX1178/MAX1188 16-Bit, 135ksps, Single-Supply ADCs with Bipolar Analog Input Range General Description
... allows conversion of true bipolar input voltages and input voltages greater than the power supply, while operating from a single +5V analog supply. The input scaler attenuates and shifts the analog input to match the input range of the internal digital-to-analog converter (DAC). The MAX1178 input vo ...
... allows conversion of true bipolar input voltages and input voltages greater than the power supply, while operating from a single +5V analog supply. The input scaler attenuates and shifts the analog input to match the input range of the internal digital-to-analog converter (DAC). The MAX1178 input vo ...
Chapter 4_part 1
... It can be seen that sampling at the Nyquist rate can create a good approximation of the original sine wave (part a). Oversampling in part b can also create the same approximation, but it is redundant and unnecessary. Sampling below the Nyquist rate (part c) does not produce a signal that looks like ...
... It can be seen that sampling at the Nyquist rate can create a good approximation of the original sine wave (part a). Oversampling in part b can also create the same approximation, but it is redundant and unnecessary. Sampling below the Nyquist rate (part c) does not produce a signal that looks like ...
Analog-to-digital converter
An analog-to-digital converter (ADC, A/D, or A to D) is a device that converts a continuous physical quantity (usually voltage) to a digital number that represents the quantity's amplitude.The conversion involves quantization of the input, so it necessarily introduces a small amount of error. Furthermore, instead of continuously performing the conversion, an ADC does the conversion periodically, sampling the input. The result is a sequence of digital values that have been converted from a continuous-time and continuous-amplitude analog signal to a discrete-time and discrete-amplitude digital signal.An ADC is defined by its bandwidth (the range of frequencies it can measure) and its signal to noise ratio (how accurately it can measure a signal relative to the noise it introduces). The actual bandwidth of an ADC is characterized primarily by its sampling rate, and to a lesser extent by how it handles errors such as aliasing. The dynamic range of an ADC is influenced by many factors, including the resolution (the number of output levels it can quantize a signal to), linearity and accuracy (how well the quantization levels match the true analog signal) and jitter (small timing errors that introduce additional noise). The dynamic range of an ADC is often summarized in terms of its effective number of bits (ENOB), the number of bits of each measure it returns that are on average not noise. An ideal ADC has an ENOB equal to its resolution. ADCs are chosen to match the bandwidth and required signal to noise ratio of the signal to be quantized. If an ADC operates at a sampling rate greater than twice the bandwidth of the signal, then perfect reconstruction is possible given an ideal ADC and neglecting quantization error. The presence of quantization error limits the dynamic range of even an ideal ADC, however, if the dynamic range of the ADC exceeds that of the input signal, its effects may be neglected resulting in an essentially perfect digital representation of the input signal.An ADC may also provide an isolated measurement such as an electronic device that converts an input analog voltage or current to a digital number proportional to the magnitude of the voltage or current. However, some non-electronic or only partially electronic devices, such as rotary encoders, can also be considered ADCs. The digital output may use different coding schemes. Typically the digital output will be a two's complement binary number that is proportional to the input, but there are other possibilities. An encoder, for example, might output a Gray code.The inverse operation is performed by a digital-to-analog converter (DAC).