Examples of 'sigma-delta modulator' in a sentence
Meaning of "sigma-delta modulator"
Sigma-delta modulator: This phrase is related to electronic engineering and refers to a type of analog-to-digital converter that uses a delta-sigma modulation technique for high-resolution conversion
How to use "sigma-delta modulator" in a sentence
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sigma-delta modulator
An efficient sigma-delta modulator has high value gain.
The result will then be a higher order sigma-delta modulator.
Many alternative sigma-delta modulator architectures may be envisaged.
This also increases rejection relative to noise generated by sigma-delta modulator 9.
The converter comprises a sigma-delta modulator in series with a numerical decimation filter.
Number p of analog integrators generally defines the order of the sigma-delta modulator.
The quality of the sigma-delta modulator is related to the resonator quality factor.
The digital integration is performed at the oversampling frequency of the sigma-delta modulator.
In the invention, a particular type of sigma-delta modulator that generates overflows is used.
The excitation resonator may form part of a second distinct sigma-delta modulator.
It increases the order of the sigma-delta modulator and therefore its performances.
One of the main difficulties is the operating stability of the sigma-delta modulator.
Digital to digital Sigma-Delta modulator and digital frequency synthesizer incorporating the same.
Sigma-delta converter typically comprises a sigma-delta modulator and a digital filter.
The sigma-delta modulator may for example be used in this way as a signal generator.
See also
The quantization of the signals provided by the sigma-delta modulator is relatively coarse.
The sigma-delta modulator according to the invention may comprise one or several resonators.
Accordingly, a continuous time bandpass sigma-delta modulator can be regarded as a feedback control loop.
In this case, an amplifier with variable gain is necessary for the sigma-delta modulator.
When the sigma-delta modulator is used as a signal generator, the resonator may be a free oscillator.
The measurement system basically consists of an instrumentation amplifier and a subsequent sigma-delta modulator.
The output from the sigma-delta modulator is a sequence of samples having a limited number of values.
The values of the amplitudes should coincide with the output levels of the sigma-delta modulator.
The first-order sigma-delta modulator has high quantization noise at the sampling frequency.
Figure 3 is a diagram of a typical sigma-delta modulator output.
A sigma-delta modulator is used with a simple ADC.
Digitizing the amplified analog signal with a sigma-delta modulator to produce a digitized signal ; and.
The Sigma-Delta modulator is generally followed by a class D output.
The output signal of the Sigma-Delta modulator is at a frequency Fe.
Sigma-delta modulator having an input terminal and an output terminal, comprising,.
Digital to digital Sigma-Delta modulator comprising,.
The digital signal s ( t ) is the secondary output of the sigma-delta modulator.
Characterized in that the sigma-delta modulator also comprises,.
Sigma-delta modulator with a compensation filter 70 can be used for example in a radar processing chain.
Known digital to digital Sigma-Delta modulator comprises,.
The mobile station of claim 1, wherein each of said N subreceivers comprises a sigma-delta modulator.
According to one variant, the sigma-delta modulator is inhibited or deleted.
The second clock can be coupled to the clock of the Sigma-Delta modulator 4.
Finally, a second-order sigma-delta modulator is chosen to benchmark the proposed solutions.
More precisely, the purpose of the invention is a sigma-delta modulator comprising,.
FIG . 1 presents an exemplary sigma-delta modulator in continuous time with re-sampling of the feedback pathway ;.
A clock signal controls the sampling rate of each sigma-delta modulator 38.
The sigma-delta modulator of FIG . 4 comprises two cascaded stages, constructed each around a word adder.
This object is achieved by the sigma-delta modulator according to claim 1.
A second bus comprising the N-M least significant bits is connected to the first sigma-delta modulator 52.
As explained previously, the role of a sigma-delta modulator in continuous time is two-fold.
A second bus comprising the N-M low order bits is input into the first sigma-delta modulator 72.
The adjusted signal is provided to a sigma-delta modulator 414 that generates a modulator signal.
The division factor of divider 35 is programmed by a conventional sigma-delta modulator 36.
Figure 2 is a circuit diagram of a two-stage sigma-delta modulator according to an embodiment of the invention.
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