Integrated Receiver Simplifies the Analog Side of Digital Predistortion - High Frequency Electronics July 2009
... package (SiP) technology greatly simplifies this task. The LTM9003 digital predistortion uModule® receiver is a fully integrated DPD receiver— essentially RF-to-bits. The µModule technology pioneered by Linear Technology utilizes a thin, multi-layer laminate substrate made of BT (bismaleimide triazi ...
... package (SiP) technology greatly simplifies this task. The LTM9003 digital predistortion uModule® receiver is a fully integrated DPD receiver— essentially RF-to-bits. The µModule technology pioneered by Linear Technology utilizes a thin, multi-layer laminate substrate made of BT (bismaleimide triazi ...
ppt
... Ratio of the power in a signal to the power contained in the noise that’s present at a particular point in the transmission Typically measured at a receiver Signal-to-noise ratio (SNR, or S/N) signal power ( SNR) dB 10 log 10 noise power ...
... Ratio of the power in a signal to the power contained in the noise that’s present at a particular point in the transmission Typically measured at a receiver Signal-to-noise ratio (SNR, or S/N) signal power ( SNR) dB 10 log 10 noise power ...
Electronics Manual
... amplitude to about half maximum. Make sure the SWP VAR and VAR controls on the oscilloscope are fully clockwise (CAL position). Apply a sinusoidal signal from the signal generator to one input of the oscilloscope with the AC-GND-DC switch in the DC position. Obtain a sharp steady trace and measure t ...
... amplitude to about half maximum. Make sure the SWP VAR and VAR controls on the oscilloscope are fully clockwise (CAL position). Apply a sinusoidal signal from the signal generator to one input of the oscilloscope with the AC-GND-DC switch in the DC position. Obtain a sharp steady trace and measure t ...
Control System for Electromagnet Power Supplies
... allows using “system calibration” of the ADC chip and to reduce most sources of inaccuracy. The design of the DAC had some specific requirements. The chosen chip (DAC1220) provides output signals from 0 to +5V. Most of our power supplies require a range up to 10V. So, the DAC1220 voltage is doubled ...
... allows using “system calibration” of the ADC chip and to reduce most sources of inaccuracy. The design of the DAC had some specific requirements. The chosen chip (DAC1220) provides output signals from 0 to +5V. Most of our power supplies require a range up to 10V. So, the DAC1220 voltage is doubled ...
MT-081 TUTORIAL RMS-to-DC Converters
... Figure 4: The AD536A Monolithic RMS-to-DC Converter It is subdivided into four major sections: absolute value circuit (active rectifier), squarer/divider, current mirror, and buffer amplifier. The input voltage VIN, which can be ac or dc, is converted to a unipolar current, I1, by the absolute value ...
... Figure 4: The AD536A Monolithic RMS-to-DC Converter It is subdivided into four major sections: absolute value circuit (active rectifier), squarer/divider, current mirror, and buffer amplifier. The input voltage VIN, which can be ac or dc, is converted to a unipolar current, I1, by the absolute value ...
OPTICS LAB TUTORIAL: Oscilloscope and Spectrum Analyzer M.P. Hasselbeck
... ANSWER: Signal level (voltage) will drop enormously at 50 Ω unless source can provide enough current ...
... ANSWER: Signal level (voltage) will drop enormously at 50 Ω unless source can provide enough current ...
ppt
... Ratio of the power in a signal to the power contained in the noise that’s present at a particular point in the transmission Typically measured at a receiver Signal-to-noise ratio (SNR, or S/N) signal power ( SNR) dB 10 log 10 noise power ...
... Ratio of the power in a signal to the power contained in the noise that’s present at a particular point in the transmission Typically measured at a receiver Signal-to-noise ratio (SNR, or S/N) signal power ( SNR) dB 10 log 10 noise power ...
Introduction to Digital Modulation
... • Information capacity, Bits & Bit Rate – Represents the number of independent symbols that can be carried through a system in a given unit of time. – Basic digital symbol is the binary digit or bit. – It often convenient to express the information capacity of a system as a bit rate. – Bit rate is ...
... • Information capacity, Bits & Bit Rate – Represents the number of independent symbols that can be carried through a system in a given unit of time. – Basic digital symbol is the binary digit or bit. – It often convenient to express the information capacity of a system as a bit rate. – Bit rate is ...
Nov 2000 Low Distortion Rail-to-Rail Amplifiers Drive ADCs and Cables
... passes through the 6.8MHz lowpass filter formed by R3 and C1 and is applied to the LTC1420 ADC. With the 10Msps, 12-bit LTC1420 set in a gain of 1 and its internal reference set at 2.048V, the full-scale signal is about 1VP-P, input referred. Figure 10, a 4096 point FFT, shows results ...
... passes through the 6.8MHz lowpass filter formed by R3 and C1 and is applied to the LTC1420 ADC. With the 10Msps, 12-bit LTC1420 set in a gain of 1 and its internal reference set at 2.048V, the full-scale signal is about 1VP-P, input referred. Figure 10, a 4096 point FFT, shows results ...
Data Encoding
... Advantages of Digital Transmission The signal is exact Signals can be checked for errors Noise/interference are easily filtered out A variety of services can be offered over one line Higher bandwidth is possible with data compression ...
... Advantages of Digital Transmission The signal is exact Signals can be checked for errors Noise/interference are easily filtered out A variety of services can be offered over one line Higher bandwidth is possible with data compression ...
A/D Converter Specifications (Cont.)
... the signal. This is known as the Nyquist rate. A signal can be exactly reproduced if it is sampled at a frequency F, where F is greater than twice the maximum frequency in the signal. If the sampling frequency is less than Nyquist rate, the waveform is said to be undersampled. ...
... the signal. This is known as the Nyquist rate. A signal can be exactly reproduced if it is sampled at a frequency F, where F is greater than twice the maximum frequency in the signal. If the sampling frequency is less than Nyquist rate, the waveform is said to be undersampled. ...
A/D Converter Specifications (Cont.)
... the signal. This is known as the Nyquist rate. A signal can be exactly reproduced if it is sampled at a frequency F, where F is greater than twice the maximum frequency in the signal. If the sampling frequency is less than Nyquist rate, the waveform is said to be undersampled. ...
... the signal. This is known as the Nyquist rate. A signal can be exactly reproduced if it is sampled at a frequency F, where F is greater than twice the maximum frequency in the signal. If the sampling frequency is less than Nyquist rate, the waveform is said to be undersampled. ...
R09 Set No. 2
... 2. (a) How the frequency response limitation of chopper amplifier is overcome. (b) With a need block diagram explain the operation of chopper amplifier. [7+8] 3. (a) Describe a thermocouple with suitable sketches. (b) Explain how it can be used to measure high temperature. ...
... 2. (a) How the frequency response limitation of chopper amplifier is overcome. (b) With a need block diagram explain the operation of chopper amplifier. [7+8] 3. (a) Describe a thermocouple with suitable sketches. (b) Explain how it can be used to measure high temperature. ...
Electronic Music
... In general, a keyboard pitch-control signal is input to the oscillator, and the audio output from the oscillator is sent to a speaker. Pressing a key will then cause the production of a tone with the pitch associated with that key. The oscillator remembers the pitch and continues to sound at this pi ...
... In general, a keyboard pitch-control signal is input to the oscillator, and the audio output from the oscillator is sent to a speaker. Pressing a key will then cause the production of a tone with the pitch associated with that key. The oscillator remembers the pitch and continues to sound at this pi ...
Principles of Electronic Communication Systems
... There are two ways to move binary bits from one place to another: transmit all bits of a word simultaneously or send only 1 bit at a time. These methods are referred to as parallel and serial transfer. In parallel data transfers, all the bits of a code word are transferred simultaneously Data tr ...
... There are two ways to move binary bits from one place to another: transmit all bits of a word simultaneously or send only 1 bit at a time. These methods are referred to as parallel and serial transfer. In parallel data transfers, all the bits of a code word are transferred simultaneously Data tr ...
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).