MAX8680 Smallest, All-Internal MOSFET, 7-Channel General Description
... The MAX8680 highly efficient complete power-supply solution is designed for digital still cameras (DSCs) and digital video cameras (DVCs). The device integrates seven on-chip power MOSFET DC-DC converters with up to 95% efficiency to power all critical power supplies in DSC systems. Each converter a ...
... The MAX8680 highly efficient complete power-supply solution is designed for digital still cameras (DSCs) and digital video cameras (DVCs). The device integrates seven on-chip power MOSFET DC-DC converters with up to 95% efficiency to power all critical power supplies in DSC systems. Each converter a ...
a Low Distortion Mixer AD831
... 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 ...
Monolithic transformers and their application in a differential CMOS
... the substrate resistive loss due to eddy current. FastHenry was used to compute the self-inductance, mutual coupling coefficient, and metal resistance including the skin effect. Table II summarizes the simulation results for two different inductors and transformers in differential mode. Note that el ...
... the substrate resistive loss due to eddy current. FastHenry was used to compute the self-inductance, mutual coupling coefficient, and metal resistance including the skin effect. Table II summarizes the simulation results for two different inductors and transformers in differential mode. Note that el ...
AN2794
... thanks to a dual stage conversion topology including an efficient step-up push-pull DC-DC converter, to produce a regulated high-voltage DC bus and a sinusoidal H-Bridge PWM inverter to generate a 50 Hz, 230 Vrms output sine wave. Other relevant features of the proposed system are high power density ...
... thanks to a dual stage conversion topology including an efficient step-up push-pull DC-DC converter, to produce a regulated high-voltage DC bus and a sinusoidal H-Bridge PWM inverter to generate a 50 Hz, 230 Vrms output sine wave. Other relevant features of the proposed system are high power density ...
chapter 5 - UniMAP Portal
... This design avoid using the permanent magnets. The simplest design is to use a non-magnetized iron vane to move the needle against spring tension, the vane being attracted toward a stationary coil of wire energized by the AC quantity to be measured, Figure ...
... This design avoid using the permanent magnets. The simplest design is to use a non-magnetized iron vane to move the needle against spring tension, the vane being attracted toward a stationary coil of wire energized by the AC quantity to be measured, Figure ...
MAX1716/MAX1854/MAX1855 High-Speed, Adjustable, Synchronous Step-Down Controllers with Integrated Voltage Positioning General Description
... proprietary Quick-PWM™ quick-response, constant-ontime PWM control scheme handles wide input/output voltage ratios with ease and provides 100ns “instant-on” response to load transients while maintaining a relatively constant switching frequency. The MAX1716/MAX1854/MAX1855 are designed specifically ...
... proprietary Quick-PWM™ quick-response, constant-ontime PWM control scheme handles wide input/output voltage ratios with ease and provides 100ns “instant-on” response to load transients while maintaining a relatively constant switching frequency. The MAX1716/MAX1854/MAX1855 are designed specifically ...
LMF100 High Performance Dual Switched Capacitor Filter
... Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is intended to be functional. These ratings do not guarantee specific performance limits, however. For guaranteed specifications and test condition ...
... Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is intended to be functional. These ratings do not guarantee specific performance limits, however. For guaranteed specifications and test condition ...
LTC2313-12 - Linear Technology
... may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2. All voltage values are with respect to ground. Note 3. When these pin voltages are taken below ground or above VDD (AIN, REF) or OVDD ( ...
... may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2. All voltage values are with respect to ground. Note 3. When these pin voltages are taken below ground or above VDD (AIN, REF) or OVDD ( ...
17.6 high-frequency limitations of common- emitter
... Discussion: The dominant pole is located at a frequency f P1 = 1.56 MHz, whereas f P2 and f Z are estimated to be at frequencies above f T (500 MHz). Thus, the upper-cutoff frequency f H for this amplifier is determined solely by f P1 : f H ∼ = 1.56 MHz. Note that this value of f H is less than 1 pe ...
... Discussion: The dominant pole is located at a frequency f P1 = 1.56 MHz, whereas f P2 and f Z are estimated to be at frequencies above f T (500 MHz). Thus, the upper-cutoff frequency f H for this amplifier is determined solely by f P1 : f H ∼ = 1.56 MHz. Note that this value of f H is less than 1 pe ...
ABSTRACT - Ece.umd.edu - University of Maryland
... Before World War II, there had been considerable research for uncooled imaging systems including sensing materials, electrical readout, and system packaging. The two most prominent areas of uncooled materials research are 1) ferroelectric & pyroelectric bolometry and 2) resistive bolometry [1]. The ...
... Before World War II, there had been considerable research for uncooled imaging systems including sensing materials, electrical readout, and system packaging. The two most prominent areas of uncooled materials research are 1) ferroelectric & pyroelectric bolometry and 2) resistive bolometry [1]. The ...
AP3591 Description A Product Line of
... directly proportional to the output voltage and inversely proportional to the input voltage. The implementation results in a nearly constant switching frequency without the need of a clock generator. tON = 14.5p×RTON×(VOUT+0.1)/VIN+50ns After an ON-time period, the AP3591 goes into the OFF-time peri ...
... directly proportional to the output voltage and inversely proportional to the input voltage. The implementation results in a nearly constant switching frequency without the need of a clock generator. tON = 14.5p×RTON×(VOUT+0.1)/VIN+50ns After an ON-time period, the AP3591 goes into the OFF-time peri ...
News Musikmesse Frankfurt 2008
... Precision control voltage adder. Suitable to add control voltages for the pitch control of VCOs (e.g. from keyboard + sequencer 1 + sequencer 2). The module is equipped with four CV inputs: one with attenuator and three without attenuator. Each input is normalled to +1.00V (i.e. if no plug is insert ...
... Precision control voltage adder. Suitable to add control voltages for the pitch control of VCOs (e.g. from keyboard + sequencer 1 + sequencer 2). The module is equipped with four CV inputs: one with attenuator and three without attenuator. Each input is normalled to +1.00V (i.e. if no plug is insert ...
Design of Low Phase Noise LC VCO for UHF RFID Reader
... of the frequency synthesizer. A 1.8 GHz LO signal is generated by an integrated VCO in the PLL and then the 900 MHz differential output is filtered by loop filter and applied to the VCO. An 8/9 dual modulus prescaler, PS counters, and the third-order sigma-delta modulator are used in the feedback pa ...
... of the frequency synthesizer. A 1.8 GHz LO signal is generated by an integrated VCO in the PLL and then the 900 MHz differential output is filtered by loop filter and applied to the VCO. An 8/9 dual modulus prescaler, PS counters, and the third-order sigma-delta modulator are used in the feedback pa ...
Technical Notes
... and digital input. In fact, when you designate a Core 110f’s GPIO input as “raw” in Q-SYS Designer, two control pins appear: one analog and one digital. You may use either one or both simultaneously. They respectively have the characteristics of the regular analog and digital GPIO inputs. The main a ...
... and digital input. In fact, when you designate a Core 110f’s GPIO input as “raw” in Q-SYS Designer, two control pins appear: one analog and one digital. You may use either one or both simultaneously. They respectively have the characteristics of the regular analog and digital GPIO inputs. The main a ...
ee221_3
... Use a capacitor and resistor to construct a low-pass filter. Demonstrate it is indeed a low-pass filter. Determine its 3dB cut-off frequency (fc) and gain at DC (G0). Exercise: Do the same as above with an inductor and a resistor. Use an inductor and resistor to construct a high-pass filter. Demonst ...
... Use a capacitor and resistor to construct a low-pass filter. Demonstrate it is indeed a low-pass filter. Determine its 3dB cut-off frequency (fc) and gain at DC (G0). Exercise: Do the same as above with an inductor and a resistor. Use an inductor and resistor to construct a high-pass filter. Demonst ...
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.