Abstract: The invention relates to the representation of digital signals. In order to improve the perception by a user of the quality of a digital signal, a first sample of first digital signal is approximated to a second sample of a second digital signal having a second number of significant bits lower than the first number of significant bits of the first sample. The second number of significant bits also depends upon the value of the first sample.

Abstract: A light emitting element driving device includes, for example, a slope voltage generator generating a slope voltage including information on an inductor current passing through a switching output stage, a sense amplifier generating a sense voltage commensurate with the output current fed to a light-emitting element from the switching output stage, a sense amplifier generating a control voltage commensurate with the difference between the sense voltage and a reference voltage, a comparator comparing the slope voltage with the control voltage to generate a comparison signal, a controller controlling the switching output stage in accordance with the comparison signal, and a clamper limiting the control voltage to equal to or lower than a clamp voltage commensurate with the slope voltage.

Abstract: A resolver disposed to monitor a rotatable member is described, along with an associated method for evaluating an output signal therefrom. The method for monitoring the resolver includes supplying an excitation signal to the resolver, and monitoring, at an oversampling rate, first and second output signals from the resolver. An oversampling routine is executed to determine averages of the first and second output signals from the resolver. A demodulation angle error is determined based upon the first and second output signals from the resolver, and provided as feedback. A position of the resolver is also determined based upon the first and second output signals from the resolver.

Abstract: Systems and methods are disclosed for monitoring power usage and temperature within a data storage device, and adjusting performance based on the power usage and temperature. In certain embodiments, an apparatus may comprise a data storage device (DSD) having an interface to communicate with a host device, and a circuit. The circuit may be configured to receive a first limit designation for a first operating parameter of the DSD via the interface, monitor a value of the first operating parameter of the DSD, evaluate a pending workload of operations to be performed by the DSD, estimate a future value of the first operating parameter based on the pending workload, and adjust performance of the DSD based on the future value and the first limit designation.

Abstract: A circuit includes a counter circuit, a logic circuit, and a clock divider. The counter circuit includes a clock divider counter to be loaded with most significant bits of a divider value, and decremented at a same edge of each pulse of a clock signal. The logic circuit compares a value contained in the divider counter to a reference value and generates an end count signal as a function of the value contained in the divider counter matching the reference value, and transitions a toggle signal at a same edge of each pulse of the end count signal. The clock divider counter is reloaded with the most significant bits of the divider value as a function of the end count signal. The clock divider generates a divided version of the clock signal as a function of the toggle signal.

Abstract: An integrated circuit (IC) is connected to an automated test equipment (ATE) with pogo pins. The IC includes an analog-to-digital converter (ADC), a voltage controlled oscillator (VCO), and a compensation circuit. The ATE provides reference voltage signals to the ADC by way of the pogo pins. A potential drop across a pogo pin introduces an error in a reference voltage signal that is reflected in a digital signal generated by the ADC. The VCO generates reference frequency signals corresponding to the reference voltage signals. The compensation circuit receives the reference frequency signals and the digital signal and generates a compensation factor signal. The compensation circuit multiplies the compensation factor signal and the digital signal to generate a compensated digital signal to compensate for the error introduced by the potential drop across the pogo pins.

Abstract: The present invention is typically embodied as a portable handheld unit that generates synchro signals for input into synchro motors and other synchro devices. A primary genre of inventive application is the testing of hardware and software in synchro systems. The inventive unit typically includes a numeric keypad, an LCD display, a microcontroller, a serial-to-parallel binary data converter, and at least one digital-to-synchro converter. The keypad and display are used to enter decimal data. The microcontroller converts the decimal data to serial binary data. The serial-to-parallel binary data converter converts the serial binary data to parallel binary data. The digital-to-synchro converter(s) convert(s) the parallel binary data to synchro analog data. Some inventive embodiments implement plural digital-to-synchro converters individually corresponding to channels for independently outputting synchro signals. Each channel can represent a specific type of synchro operation, e.g.

Abstract: A system for the calibration of a programmable system-on-a-chip is described. More specifically, embodiments of the present invention relate to a system that calibrates a programmable analog block in a system-on-a-chip without the use of external components.

Abstract: An analog input signal is sampled, and the sampled analog input signal is converted to a digital value. A calibration value is also sampled, and a single bit of an N bit offset value is calculated from the sampled calibration value. The sampling operations are alternatively performed so that one bit of the offset value is generated for each generated digital value. For example, the process is repeated N times to calculate all N bits of the offset value while generating N digital values.

Abstract: A digital-to-synchro converter (“DSC”) is a device that converts digital signals to analog signals suitable for use by a synchro device. A conventional DSC implements complex circuitry to take digital input and generate [V Sin({acute over (?)}t) Sin(?)] and [V Sin({acute over (?)}t) Cos(?)] analog signals, and a Scott-T transformer to transform these analog signals into [V Sin({acute over (?)}t) Sin(?)], [V Sin({acute over (?)}t) Sin(?+120)], and [V Sin({acute over (?)}t) Sin(?+240)] analog signals. An inventive DSC, as typically embodied, implements a microcontroller to take digital input and generate [V Sin({acute over (?)}t) Sin(?)] and [V Sin({acute over (?)}t) Sin(?+120)] digital signals, a digital-to-analog converter to convert these digital signals to [V Sin({acute over (?)}t) Sin(?)] and [V Sin({acute over (?)}t) Sin(?+120)] analog signals, and a regular transformer (i.e.

Abstract: A capacitance mismatch calibrating method for a successive approximation register ADC which includes at least one array of capacitors is provided. The method includes the following steps: firstly, at least two compensating capacitors are configured. A capacitor from the array of capacitors is selected as a capacitor-under-test. Then, the terminal voltages on the terminals of the array of capacitors and on the terminals of the compensating capacitors are determined. A first comparison voltage is outputted based on the determined terminal voltages. Afterwards, a sequence of comparisons is controlled based on the first comparison voltage and a second comparison voltage to output a sequence of corresponding digital bits. Finally, a calibration value is calculated to calibrate the value of a capacitor-under-test according to the digital bits.

Abstract: An analog-to-digital converter system that includes a pipeline including N successively-cascaded signal converters, each converting, according to a first clock signal, a respective portion of an input signal of the pipeline into digital codes, a code aligner for receiving and aligning the digital codes from the signal converters in the pipeline into a digital output of the system, an error extractor coupled to an amplifier input node of a selected one signal converter via a first switch for extracting an error signal, and a load system coupled to the amplifier input node of the selected one signal converter via a second switch.

Abstract: Various embodiments of methods and devices for reducing capacitor mismatch errors in a pipeline analog-to-digital converter (ADC) are disclosed. A plurality of pipeline element circuits are provided, where each pipeline element circuit corresponds to a given bit of the pipeline ADC. A first pipeline element circuit is configured to digitize analog A and B capacitor mismatch error calibration voltages generated by all the pipeline element circuits of the ADC when the pipeline ADC is operating in a capacitor mismatch calibration phase. According to one embodiment, digital representations corresponding to A and B capacitor mismatch error calibration voltages for each of the pipeline element circuits are provided to an output shift register and summing circuit, which generates capacitor mismatch error correction codes corresponding to each bit and pipeline element circuit.

Abstract: A CORDIC processor has a plurality of stages, each of the stages having a X input, Y input, a sign input, a sign output, an X output, a Y output, a mode control input having a ROTATE or VECTOR value, and a stage number k input, each CORDIC stage having a first shift generating an output by shifting the Y input k times, a second shift generating an output by shifting X input k times, a multiplexer having an output coupled to the sign input when the mode control input is ROTATE and to the sign of the Y input when the mode input is VECTOR, a first multiplier forming the product of the first shift output and the multiplexer output, a second multiplier forming the product of the second shift output and an inverted the multiplexer output, a first adder forming the X output from the sum of the first multiplier output and the X input, and a second adder forming the Y output from the sum of the second multiplier output and the Y input.

Abstract: A system has a corrected unit, and a correction unit that performs binary search of a correction value with which an output of the corrected unit gets close to a reference value and feeds back the correction value to the corrected unit. The correction unit performs the additional comparison for comparing a first output of the corrected unit corresponding to a first correction value searched by the binary search and a second output, which is an output of the corrected unit corresponding to a second correction value that is adjacent to the first correction value and is an output that the voltage relationship to the reference value is opposite to the first output, and for selecting the first or second correction value corresponding to the first or second output closer to the reference value, and feeds back the selected correction value to the corrected unit.

Abstract: A method of operating an analog-to-digital converter (ADC) includes providing the ADC including a plurality of stages, each including an operational amplifier, and a first capacitor and a second capacitor including a first input end and a second input end, respectively. Each of the first capacitor and the second capacitor includes an additional end connected to a same input of the operational amplifier. The method further includes performing a plurality of signal conversions. Each of the signal conversions includes, in an amplifying phase of one of the plurality of stages, applying a first voltage to the first input end of the one of the plurality of stages, randomly selecting a second voltage from two different voltages; and applying the second voltage to the second input end of the one of the plurality of stages.

Abstract: A digital phase-locked loop (DPLL), a supporting digital frequency integrator, and a method are provided for deriving a digital phase error signal in a DPLL. A digital frequency integrator periodically accepts a digital tdcOUT message from a Time-to-Digital Converter (TDC) representing a measured ratio of a reference clock (Tref) period to a synthesizer clock (Tdco) period. Also accepted is a digital message selecting a first ratio (Nf). In response, a digital phase error (pherr) message is periodically supplied that is proportional to an error in phase between the reference clock and the (synthesizer clock*Nf).

Abstract: A method for compensating a linearity error of a dual digital-to-analog converter, including the steps of receiving a digital data signal which include a plurality of bits, the digital data signal indicating a voltage signal to be generated, the plurality of bits representing a set of consecutive bits being confined within a highest bit and a lowest bit, applying a high-bit-array to a first digital-to-analog converter, the high-bit-array being composed of a consecutive sub-set of the plurality of bits of the digital data signal, the sub-set including the highest bit of the digital data signal, using at least a part of a correction data of a look-up-table for manipulating at least a part of a low-bit-array, being composed of a consecutive sub-set of the plurality of bits of the digital data signal, where the sub-set includes the lowest bit of the digital data signal.

Abstract: An electronic device includes a frequency variable circuit, a filter, and an output voltage decision circuit. The frequency variable circuit changes the sampling frequency of an analog-digital converter. The filter limits a pass band of an output signal of the analog-digital converter. The output voltage decision circuit determines the noise level of the output signal of the analog-digital converter after the output signal passes through the filter. The electronic device performs a self-diagnosis as follows. The frequency variable circuit changes the sampling frequency of the analog-digital converter to a frequency outside of the pass band of the filter so as to change the quantization noise level of the analog-digital converter. Then, the output voltage decision circuit determines whether the integral of the quantization noise level is within a predetermined range.

Abstract: An integrated circuit includes a radio receiver for receiving a received radio signal having a plurality of channel signals, each of the plurality of channel signals being modulated at one of a corresponding plurality of carrier frequencies. The radio receiver converts a selected one of the plurality of channel signals into a demodulated signal. An interface clock generator generates a first interface clock at a first interface clock frequency that varies based on the selected one of the plurality of channel signals. The first interface clock frequency, and integer multiples of the first clock frequency are not substantially equal to the carrier frequency of the selected one of the plurality of channel signals. A driver module drives a device interface with a device based on the first interface clock.

Abstract: A system for the calibration of a programmable system-on-a-chip is described. More specifically, embodiments of the present invention relate to a system that calibrates a programmable analog block in a system-on-a-chip without the use of external components.

Abstract: A signal processing device, even when a steep difference in DC level is included in a signal read from a disc such as a DVD-RAM format, cuts off the DC level and pulls the read signal into an appropriate A/D input level. A steep difference in DC level between a data section and a CAPA section is absorbed by a first offset unit, and an asymmetry which occurs due to variations in the disc manufacturing stage is corrected by a second offset unit. Further, a control signal for operating the two offset units exclusively is generated by a controller, thereby controlling both offset units.

Abstract: Methods and systems for mitigating latency in a data detector feedback loop are included. For example, a method for reducing latency in an error corrected data retrieval system is included. The method includes performing an analog to digital conversion at a sampling instant to create a digital sample, and performing a data detection on the digital sample to create a detected output. The detected output is compared with the digital sample to determine a phase error. During an interim period, the digital sample is adjusted to reflect the phase error to create an adjusted digital sample. After the interim period, the sampling instant is adjusted to reflect the phase error.

Abstract: A receiver has an offset application circuit for applying a known offset to an input signal, and a decision circuit for comparing the offset-applied input signal with a reference voltage. The level of the input signal is determined based on the known offset and on the result output from the decision circuit. With this configuration, a large common mode voltage can be eliminated in a circuit used for signal transmission.

Abstract: Methods, and other embodiments associated with signal filtering are described. According to one embodiment, an apparatus includes an analog-to-digital converter that generates a first digital component and a second digital component from an analog signal. A filter filters the first digital component and the second digital component to substantially align the phase of the first digital component and the phase of the second digital component.

Abstract: An analog-to-digital converter includes a first preamplifier receiving a first reference voltage and an input signal, a second preamplifier receiving a second reference voltage and the input signal, a first preamplifier calibrator placed for the first preamplifier and adjusting an input offset of the first preamplifier, a second preamplifier calibrator placed for the second preamplifier and adjusting an input offset of the second preamplifier, an interpolator placed between output terminals of the first and second preamplifiers and generating an interpolation signal having a voltage value between a first output signal from the first preamplifier and a second output signal from the second preamplifier, comparators receiving the first output signal, the second output signal or the interpolation signal and outputting a digital value based on the received signal, and comparator calibrators placed for at least comparators receiving the interpolation signal among the comparators and adjusting input offsets of the c

Abstract: An AD converting apparatus converts an analog input signal into a digital output signal. The apparatus includes a plurality of AD converters that are supplied with sampling clocks differing from each other by a prescribed phase and that each output an individual signal obtained by digitizing the input signal according to the sampling clock supplied thereto, a common compensating section that commonly compensates for prescribed common non-linear distortion in the individual signals, and a plurality of individual compensating sections that each individually compensate for individual non-linear distortion in a corresponding one of the individual signals. The individual non-linear distortion is obtained as a ratio between the non-linear distortion and the common non-linear distortion in each individual signal. The apparatus further includes a combining section that combines the individual signals to generate the output signal.

Abstract: The present invention discloses an FFT-based ADC calibration system able to solve the problems of capacitor mismatch and finite Op-Amp open loop gain, which result in that the radix of the gain of each stage is not exactly equal to 2. The present invention uses an FFT processor to calculate the real radix of each stage and uses a digital method to generate new digital outputs. As the present invention can compensate the finite gain of Op-Amp, the specification of Op-Amp is not so critical in designing ADC. Therefore, the low-gain Op-Amp can be used to reduce the power consumption of ADC. Further, the FFT-based calibration technology can considerably promote the performance of ADC.

Abstract: In an A/D converting apparatus, a converting unit has an input terminal and an input-output characteristic. The input-output characteristic has temperature dependence, and the converting unit carries out a process of converting an input voltage signal to digital data. A temperature determining unit has information representing a relationship between a variable of an output of the converting unit and a variable of a temperature around the converting unit according to the temperature dependence of the input-output characteristic of the converting unit. When the specified voltage is applied to the input terminal of the converting unit, the temperature determining unit determines a value of the temperature around the converting unit based on the information and the specified voltage. A reducing unit reduces temperature dependence of the process of converting an input voltage signal to digital data based on the determined value of the temperature around the converting unit.

Abstract: For digitizing analog measurement signals, an analog-to-digital converter is used, wherein the offset to be subtracted from an analog measurement value is taken to account within a locked loop by means of which an analog-to-digital converter operating according to the modulation principle is fed back.

Abstract: A signal processing system for reducing calibration-related distortions in a complete-channel signal generated by a multi-channel subsystem, such as an interleaved ADC, includes a channel separator for separating the distorted digital signal into its various sub-channels and a single-channel corrector for independently processing each sub-channel to reduce distortion products present therein. The system additionally includes a subchannel re-combiner for combining the plurality of sub-channels processed by the single-channel corrector and a multi-channel corrector for calibrating each of plurality of sub-channels relative to one another to yield an equalized, complete-channel output signal. The multi-channel corrector includes a bank of optimized filters, each filter being assigned to a corresponding sub-channel of the complete-channel signal.

Abstract: To prevent the value of a successive approximation register, which should be holding the value of the comparison result, from changing due to noise or the like during the A/D conversion by a successive approximation A/D converter, a detection circuit is arranged on an arbitrary bit of a successive approximation register 5 to detect the change in the value of the bit. The detection circuit detects the change in the value during the period in which the successive approximation register should be holding the data, such as during the period other than the comparison time, and outputs an abnormal conversion detection signal.

Abstract: A calibration device includes a comparison unit, a counting unit, a memory, and a compensation circuit. A residue of a sub analog-to-digital converter is compared with a first and a second voltage by the comparison unit for generating a comparison result. A number of times of the residue voltage, out of bounds defined by the first and the second voltage, is counted by the counting unit in an ith period according to the comparison result. The number of times of the residue voltage out of the bounds in an (i?1)th period is stored in the memory. A clock of the sub ADC is adjusted by the compensation circuit into a direction based on the number of times of the residue voltage out of the bounds in the ith period and the number of times of the residue voltage out of the bounds in the (i?1)th period.

Abstract: An audio codec and a BIST method adapted for the audio codec are provided. The BIST method includes the following steps. A first channel digital-to-analog converter (DAC) of the audio codec converts a test signal into an analog signal. A first channel analog-to-digital converter (ADC) of the audio codec converts the analog signal into a digital signal. Use a second channel DAC of the audio codec and a second channel ADC of the audio codec to calculate the magnitudes of a plurality of spectral components of the DFT of the digital signal. Determine whether the audio codec passes the test according to the magnitudes of the spectral components.

Abstract: An A/D conversion apparatus performs motor current detection in an A/D conversion period corresponding to two phases out of three phases of a sinusoidal drive motor, using reduced register resources while minimizing the number of A/D converters. The A/D conversion apparatus includes: a selection unit selecting one of a plurality of input channels; an A/D converter converting an analog signal from the selected input channel to a digital signal; a start register holding a start channel number of sequential conversion; an end register holding an end channel number of the sequential conversion; a prohibition information holding unit holding prohibition information indicating an input channel to be excluded from the sequential conversion; and a control unit causing the selection unit to select, in channel number order, input channels corresponding to channel numbers from the start channel number to the end channel number except the input channel indicated by the prohibition information.

Abstract: Interface unit for voltage input signals comprising two or more input channels. The input signals of these two or more input channels are connected alternately by an analog multiplexer to an analog-to-digital converter. The A/D converter comprises an integrated sigma-delta modulator circuit which generates a digitized 1-bit signal representing the input signal voltage level for a control unit irrespective of whether the input channel signal is digital or analog. By means of the invention all input voltage channels are made similar such that the input channels of the interface unit can receive an analog or digital signal irrespective of each other.

Abstract: A digital clock generator includes a base clock generator for generating a base clock signal at a variable base clock frequency in response to a control signal. A digital clock controller generates a digital clock signal having a substantially constant number of digital clock cycles over a predetermined period.

Abstract: A D/A converter has a reference comparison current generator configured to generate a reference comparison current, a first reference current generator configured to generate a first reference current capable of correcting a current level, a first D/A converting part capable of outputting a first full-scale current having a predetermined proportional relationship with the first reference current and capable of generating a first D/A converting voltage in accordance with first input digital data, and a current comparator configured to generate a difference current between the first full-scale current and the reference comparison current to determine a magnitude of the difference current. The first reference current generator corrects the first reference current based on a result determined by the current comparator.

Abstract: An Inverter system includes a comparator unit compares an analog input voltage with at least one voltage threshold to judge a voltage range for the input voltage. A DC-offset unit determines a DC-offset value to limit the input voltage within a predetermined bound. The input voltage is level-shifted and amplified by a non-inverting adder unit according to the DC-offset value and a fixed gain, and then processed by an analog to digital converter (ADC) to obtain a digital count value. A microcontroller unit calculates an original value for the input analog voltage according to the voltage range and the digital count value. When the analog input voltage could be negative value, a full-wave rectifier unit and a polarity judgment unit are used to find an absolute value and a polarity of the analog input voltage for further processing.

Abstract: A method for determining a gain compensation value for multiple ADCs sums an absolute value of a number of ADC output samples from each of the ADCs that may be collected while the ADCs are in normal operation. In one embodiment, the ratio of the sums of the absolute values of ADC output samples may reflect the difference in gains between the ADCs, and may be used to determine the ADC gain compensation value. A method for determining an offset compensation value between for multiple ADCs averages of a number of ADC output samples from each ADC collected while the ADCs are in normal operation. In one embodiment, a difference between the ADC sample averages may reflect the difference in magnitudes of the ADC offsets for each ADC, and may be used to determine the ADC offset compensation value.

Abstract: A technique for reducing errors in a PTIC (parallel, time-interleaved analog-to-digital converter) consisting of M ADCs involves sampling an input signal with the PTIC and performing M different DFTs, one for each ADC. Elements of the M DFTs are grouped together according to frequency and multiplied by correction matrices to yield a corrected, reconstructed power spectrum for the PTIC. The technique is especially effective at removing gain and phase errors introduced by individual ADCs of the PTIC, including gain and phase errors that vary with frequency.

Abstract: A technique for reducing errors in a PTIC (parallel, time-interleaved analog-to-digital converter) consisting of M ADCs involves sampling an input signal with the PTIC and performing M different DFTs, one for each ADC. Elements of the M DFTs are grouped together according to bin number. If all elements corresponding to the same bin number exceed a predetermined threshold, the elements are multiplied by correction matrices to yield corrected, DFT terms for a reconstructed power spectrum. If they do not exceed the threshold, DFT elements are processed to produce uncorrected DFT terms for the reconstructed power spectrum.

Abstract: A high speed quadrature counter for use with a displacement measuring device is disclosed. The counter provides high speed counting by partitioning the tracking counter into a small fast tracking counter portion for the LSBs and a larger slow tracking counter portion for the MSBs. The fast tracking counter portion outputs a smaller number of bits according to a fast clock rate, while the slow tracking counter portion outputs a larger number of bits to update the remainder of the position at a slower clock rate. In various embodiments, the counter provides a corrected position value that has an effective timing within a few fast clock cycles of the time of the latch trigger signal. A corrected latched position circuit corrects an error that may otherwise be produced by the partitioning and the different clock rates of the fast and slow tracking counter portions.

Abstract: A system for correcting a DC offset includes a digital-to-analog (D/A) converter module (30), a summing circuit (40), an inphase-to-quadrature (I/Q) modulator (50), a spectrum analyzer module (60) and a DC offset correction module (70). The D/A converter module converts digital control signals to analog control signals, and outputs DC offset regulating signals. The summing circuit respectively sums up the DC offset regulating signals and corresponding vectors of a base band signal. The I/Q modulator receives the summed base band signal, and converts the summed base band signal to a radio frequency (RF) signal. The spectrum analyzer module analyzes an energy variation according to a DC offset contained in the RF signal. The DC offset correction module outputs the digital control signals to adjust the DC offset regulating signals, thereby obtaining the lowest energy variation.

Abstract: A method for providing a correlation between a periodic analog/digital conversion and an angle-synchronous signal, in which the periodic analog/digital conversion is provided with a timing mark, which correlates with the angle-synchronous signal, and is assigned to an angular position of a device via this timing mark.

Abstract: A system on a chip integrated circuit includes a first digital module a second digital module such that the first digital module and the second digital module are operably coupled to generate an output signal based on an input signal, based on the first digital clock signal and the second digital clock signal. A digital clock generator generates a base clock signal at a base clock frequency that varies based on a control signal and generates a first digital clock signal having a substantially constant number of first digital clock cycles over a predetermined period and for generating a second digital clock signal having a substantially constant number of second digital clock cycles over the predetermined period.

Abstract: Method for coding at least one datum using three digital signals A, B, C delivered on respectively one channel, in which the third signal C is delivered by a combination of the first two signals A, B in order to form m binary triplets, where m<8. The method provides for modifying the third signal C according to the data to be coded in order to generate n binary triplets, where n>1, the n triplets being different from the m triplets. A device for determining the absolute angular position of a turning member is described.

Abstract: A control system and method for simultaneously regulating the operation of a plurality of different types of switching power converters. The system utilizes in regulating the power converters sampled data and nonlinear feedback control loops.

Abstract: A Root Mean Square (RMS) detector circuit includes a first differential pair circuit arranged to operate in a common mode. The detector circuit also includes a compensation circuit unit having a second differential pair circuit to duplicate an unwanted base current drawn by the first differential pair circuit. The compensation circuit unit is arranged to generate an offset voltage using the duplicated base current. The compensation circuit unit also has an operational amplifier coupled to an NMOS transistor so as to generate a corrective current corresponding to the offset voltage, the corrective current being mirrored by a current mirror and provided as a compensatory current to an input of the first differential pair circuit.

Abstract: A digital-to-analog converter may include a clock signal generator and a charge pump. The clock signal generator may be configured to generate an information clock signal responsive to a digital input signal so that different duty cycles of the information clock signal are provided for different values of the digital input signal. The charge pump may be configured to generate an analog output signal responsive to the information clock signal so that different values of the analog output signal are provided for different duty cycles of the information clock signal. Related converters, methods, and power control devices are also discussed.