Digital-to-Analog Conversion PWM PWM
... • Must be low-pass filtered to be used as an analog output • To avoid ripple, low-pass filter at f << fpwm. Note that this can place a severe limit on the output bandwidth. • Resolution is limited by minimum switching time of the digital output. ...
... • Must be low-pass filtered to be used as an analog output • To avoid ripple, low-pass filter at f << fpwm. Note that this can place a severe limit on the output bandwidth. • Resolution is limited by minimum switching time of the digital output. ...
3.3 V Dual-Loop 50 Mbps to 1.25 Gbps Laser Diode Driver ADN2848
... For continuous operation, the user hardwires the LBWSET pin high and uses 1 μF capacitors to set the actual loop bandwidth. These capacitors are placed between the PAVCAP and ERCAP pins and ground. It is important that these capacitors are low leakage multilayer ceramics with an insulation resistanc ...
... For continuous operation, the user hardwires the LBWSET pin high and uses 1 μF capacitors to set the actual loop bandwidth. These capacitors are placed between the PAVCAP and ERCAP pins and ground. It is important that these capacitors are low leakage multilayer ceramics with an insulation resistanc ...
High-efficiency, IEEE 802.3at compliant, integrated PoE
... optocoupler to set the MPS current profile. The signal value is sampled on the ENSL pin during transition to sleep mode. If low the MPS current is pulsed, if high the MPS current is constant. ...
... optocoupler to set the MPS current profile. The signal value is sampled on the ENSL pin during transition to sleep mode. If low the MPS current is pulsed, if high the MPS current is constant. ...
High PSRR, Low-Noise, 1-A Power Filter (Rev. B)
... such as the TPS7A3501, provide voltage regulation across the input and output terminals with high efficiency (low insertion loss), and power-supply rejection. The device is ideally suited as a noise filter for 3.3-V, 2.5-V, and 1.8-V supplies at up to 1 A. The input-to-output voltage regulation is a ...
... such as the TPS7A3501, provide voltage regulation across the input and output terminals with high efficiency (low insertion loss), and power-supply rejection. The device is ideally suited as a noise filter for 3.3-V, 2.5-V, and 1.8-V supplies at up to 1 A. The input-to-output voltage regulation is a ...
External Characteristic of Separately Excited DC Generator
... relation between voltage generated in the armature and the load current. This curve is obtained by subtracting the drop due to the demagnetizing effect of armature reaction from the no load voltage. So, the actual generated voltage ( Eg) will be less than the no load voltage (E0). That is why the ...
... relation between voltage generated in the armature and the load current. This curve is obtained by subtracting the drop due to the demagnetizing effect of armature reaction from the no load voltage. So, the actual generated voltage ( Eg) will be less than the no load voltage (E0). That is why the ...
- Muhazam
... AC Analysis • AC analysis is done to determine the performance of FET amplifier circuit • There are a few parameters of interest, like input and output resistance, but for the purpose of non-EE class, we will do only voltage gain (no current gain, why?) • AC analysis is done after biasing is comple ...
... AC Analysis • AC analysis is done to determine the performance of FET amplifier circuit • There are a few parameters of interest, like input and output resistance, but for the purpose of non-EE class, we will do only voltage gain (no current gain, why?) • AC analysis is done after biasing is comple ...
BD63843EFV
... property such as emptied capacity at lower temperature regarding electrolytic capacitor to decide capacity value. If the connected power supply does not have sufficient current absorption capacity, regenerative current will cause the voltage on the power supply line to rise, which combined with the ...
... property such as emptied capacity at lower temperature regarding electrolytic capacitor to decide capacity value. If the connected power supply does not have sufficient current absorption capacity, regenerative current will cause the voltage on the power supply line to rise, which combined with the ...
MAX17710GB Evaluation Kit Evaluates
... from the boost regulator. The boost output pulses because of the solar cells’ limited current. 6) Increase the ambient light source on the solar cells and observe the increase in frequency of pulses at the CHG test point. 7) To turn on the internal regulator and enable the battery pack output, pres ...
... from the boost regulator. The boost output pulses because of the solar cells’ limited current. 6) Increase the ambient light source on the solar cells and observe the increase in frequency of pulses at the CHG test point. 7) To turn on the internal regulator and enable the battery pack output, pres ...
ADE7751 数据手册DataSheet 下载
... An external clock can be provided at this logic input. Alternatively, a parallel resonant AT crystal can be connected across CLKIN and CLKOUT to provide a clock source for the ADE7751. The clock frequency for specified operation is 3.579545 MHz. Crystal load capacitors of between 22 pF and 33 pF (ce ...
... An external clock can be provided at this logic input. Alternatively, a parallel resonant AT crystal can be connected across CLKIN and CLKOUT to provide a clock source for the ADE7751. The clock frequency for specified operation is 3.579545 MHz. Crystal load capacitors of between 22 pF and 33 pF (ce ...
and wavelets
... results obtained. Orthogonal wavelets ensure that the signal can be reconstructed from its transform coefficients . As wavelet the symlets function was used. The symlets are nearly symmetrical wavelets proposed by Daubechies as modifications to the “db” family - orthogonal wavelets characterized by ...
... results obtained. Orthogonal wavelets ensure that the signal can be reconstructed from its transform coefficients . As wavelet the symlets function was used. The symlets are nearly symmetrical wavelets proposed by Daubechies as modifications to the “db” family - orthogonal wavelets characterized by ...
BEAM TURN ON
... • Push the “High Voltage” switch- it should light and a low value of high voltage should be indicated on the meter, -1 to -1.5 kV. Beam current will also be indicated. • Slowly adjust (increase) the “High Voltage” adjust while looking at the beam current meter, maintain the beam current at less than ...
... • Push the “High Voltage” switch- it should light and a low value of high voltage should be indicated on the meter, -1 to -1.5 kV. Beam current will also be indicated. • Slowly adjust (increase) the “High Voltage” adjust while looking at the beam current meter, maintain the beam current at less than ...
TPS61140 数据资料 dataSheet 下载
... off, thereby opening the current path. The boost converter operates in PFM (pulse frequency modulation) mode for high efficiency over a wide load range. Operating in PFM mode, the device turns on the power switch Q1 when the voltage drop across the LDO (i.e., V(IOUT)–VOUT) falls below the regulation ...
... off, thereby opening the current path. The boost converter operates in PFM (pulse frequency modulation) mode for high efficiency over a wide load range. Operating in PFM mode, the device turns on the power switch Q1 when the voltage drop across the LDO (i.e., V(IOUT)–VOUT) falls below the regulation ...
www.Jameco.com 1-800-831-4242 Jameco Part Number 115300
... Long-term input offset voltage stability refers to the average trend line of V OS versus. Time over extended periods after the first 30 days of operation. Excluding the initial hour of operation, changes in V OS during the first 30 days are typically 2.5 mV. Refer to typical performance curve. ...
... Long-term input offset voltage stability refers to the average trend line of V OS versus. Time over extended periods after the first 30 days of operation. Excluding the initial hour of operation, changes in V OS during the first 30 days are typically 2.5 mV. Refer to typical performance curve. ...
AD831 Low Distortion Mixer Data Sheet (REV. C)
... amplifier inputs, and A/D converters. Its small signal bandwidth exceeds 200 MHz. A single resistor connected between pins OUT and FB sets its gain. The amplifier’s low dc offset allows its use in such direct-coupled applications as direct-to-baseband conversion and quadrature-amplitude demodulation ...
... amplifier inputs, and A/D converters. Its small signal bandwidth exceeds 200 MHz. A single resistor connected between pins OUT and FB sets its gain. The amplifier’s low dc offset allows its use in such direct-coupled applications as direct-to-baseband conversion and quadrature-amplitude demodulation ...
Resistive opto-isolator
Resistive opto-isolator (RO), also called photoresistive opto-isolator, vactrol (after a genericized trademark introduced by Vactec, Inc. in the 1960s), analog opto-isolator or lamp-coupled photocell, is an optoelectronic device consisting of a source and detector of light, which are optically coupled and electrically isolated from each other. The light source is usually a light-emitting diode (LED), a miniature incandescent lamp, or sometimes a neon lamp, whereas the detector is a semiconductor-based photoresistor made of cadmium selenide (CdSe) or cadmium sulfide (CdS). The source and detector are coupled through a transparent glue or through the air.Electrically, RO is a resistance controlled by the current flowing through the light source. In the dark state, the resistance typically exceeds a few MOhm; when illuminated, it decreases as the inverse of the light intensity. In contrast to the photodiode and phototransistor, the photoresistor can operate in both the AC and DC circuits and have a voltage of several hundred volts across it. The harmonic distortions of the output current by the RO are typically within 0.1% at voltages below 0.5 V.RO is the first and the slowest opto-isolator: its switching time exceeds 1 ms, and for the lamp-based models can reach hundreds of milliseconds. Parasitic capacitance limits the frequency range of the photoresistor by ultrasonic frequencies. Cadmium-based photoresistors exhibit a ""memory effect"": their resistance depends on the illumination history; it also drifts during the illumination and stabilizes within hours, or even weeks for high-sensitivity models. Heating induces irreversible degradation of ROs, whereas cooling to below −25 °C dramatically increases the response time. Therefore, ROs were mostly replaced in the 1970s by the faster and more stable photodiodes and photoresistors. ROs are still used in some sound equipment, guitar amplifiers and analog synthesizers owing to their good electrical isolation, low signal distortion and ease of circuit design.