SGL0622Z 数据资料DataSheet下载
... infringement of patents, or other rights of third parties, resulting from its use. No license is granted by implication or otherwise under any patent or patent rights of RFMD. RFMD reserves the right to change component circuitry, recommended application circuitry and specifications at any time with ...
... infringement of patents, or other rights of third parties, resulting from its use. No license is granted by implication or otherwise under any patent or patent rights of RFMD. RFMD reserves the right to change component circuitry, recommended application circuitry and specifications at any time with ...
MAX1730 50mA Regulated Step-Down Charge Pump for 1.8V or 1.9V Logic General Description
... 1, 2, and 3). Efficiency is greatest when the IN/OUT voltage ratio is close to the voltage ratio of the selected capacitor configuration and decreases for output voltages lower than the divider ratio. To choose between configurations, the MAX1730 senses the input voltage and the output voltage. The ...
... 1, 2, and 3). Efficiency is greatest when the IN/OUT voltage ratio is close to the voltage ratio of the selected capacitor configuration and decreases for output voltages lower than the divider ratio. To choose between configurations, the MAX1730 senses the input voltage and the output voltage. The ...
Bringing light to life part1
... LED driver MR16 LED bulb design Controller, Ref design High brightness LEDs driver Off line LED Bulb/T8 Ref design Multi Channel LED driver System solutions ( Triac, DALI, 0 to 10V) WEBENCH Architect ...
... LED driver MR16 LED bulb design Controller, Ref design High brightness LEDs driver Off line LED Bulb/T8 Ref design Multi Channel LED driver System solutions ( Triac, DALI, 0 to 10V) WEBENCH Architect ...
MAX1920/MAX1921 Low-Voltage, 400mA Step-Down DC-DC Converters in SOT23 General Description
... over 400mA to outputs as low as 1.25V. These converters use a unique proprietary current-limited control scheme that achieves over 90% efficiency. These devices maintain extremely low quiescent supply current (50µA), and their high 1.2MHz (max) operating frequency permits small, low-cost external co ...
... over 400mA to outputs as low as 1.25V. These converters use a unique proprietary current-limited control scheme that achieves over 90% efficiency. These devices maintain extremely low quiescent supply current (50µA), and their high 1.2MHz (max) operating frequency permits small, low-cost external co ...
Phase-Locked Loop Applications
... 20. A mixer used to translate an input signal to a higher frequency is called a(n)? a. Demodulator b. Differentiator c. Downconverter d. Upconverter 21. A common use of a mixer in a PLL synthesizer is to? a. Change the divider ratio b. Downconvert the VCO output c. Set the input reference frequency ...
... 20. A mixer used to translate an input signal to a higher frequency is called a(n)? a. Demodulator b. Differentiator c. Downconverter d. Upconverter 21. A common use of a mixer in a PLL synthesizer is to? a. Change the divider ratio b. Downconvert the VCO output c. Set the input reference frequency ...
Alternating Current - The Place Programme
... all around the circuit. In a a.c. current they oscillate only a few centimetres in each direction – they pass energy on through energy transfer. ...
... all around the circuit. In a a.c. current they oscillate only a few centimetres in each direction – they pass energy on through energy transfer. ...
Power Integrations
... emissions. PC traces should be wide because peak currents are much higher than DC load current. 12) C3 should be close to the output connector and directly across the traces connecting to the output connector to minimize output switching noise. Note that the PC traces run right through the capacitor ...
... emissions. PC traces should be wide because peak currents are much higher than DC load current. 12) C3 should be close to the output connector and directly across the traces connecting to the output connector to minimize output switching noise. Note that the PC traces run right through the capacitor ...
AP5101 1.5A Step-Down Converter with 1.4MHz Switching Frequency
... The output voltage can be adjusted from 0.81V to 15V using an external resistor divider. Table 1 shows a list of resistor selection for common output voltages. Resistor R1 is selected based on a design tradeoff between efficiency and output voltage accuracy. For high values of R1 there is less curre ...
... The output voltage can be adjusted from 0.81V to 15V using an external resistor divider. Table 1 shows a list of resistor selection for common output voltages. Resistor R1 is selected based on a design tradeoff between efficiency and output voltage accuracy. For high values of R1 there is less curre ...
AP1513
... contains an error amplifier circuit as well as a soft-start circuit that prevents overshoot at startup. An enable function, an over current protect function and a short circuit protect function are built inside, and when OCP or SCP happens, the operation frequency will be reduced from 300KHz to 30KH ...
... contains an error amplifier circuit as well as a soft-start circuit that prevents overshoot at startup. An enable function, an over current protect function and a short circuit protect function are built inside, and when OCP or SCP happens, the operation frequency will be reduced from 300KHz to 30KH ...
DN107 - C-Load TM Op Amps Conquer Instabilities
... At the beginning of a conversion cycle, this circuit samples the applied signal’s voltage magnitude and stores it on its hold capacitor. Each time the switch opens or closes, the amplifier driving the S/H’s input faces a dynamically changing capacitive load. This condition generates current spikes o ...
... At the beginning of a conversion cycle, this circuit samples the applied signal’s voltage magnitude and stores it on its hold capacitor. Each time the switch opens or closes, the amplifier driving the S/H’s input faces a dynamically changing capacitive load. This condition generates current spikes o ...
ATOMIC ABSORPTION SPECTROSCOPY
... The metal vapor absorbs energy from an external light source, and electrons jump from the ground to the excited states The ratio of the transmitted to incident light energy is directly proportional to the concentration of metal atoms present A calibration curve can thus be constructed [Concentration ...
... The metal vapor absorbs energy from an external light source, and electrons jump from the ground to the excited states The ratio of the transmitted to incident light energy is directly proportional to the concentration of metal atoms present A calibration curve can thus be constructed [Concentration ...
UC3827-1 数据资料 dataSheet 下载
... A bidirectional pin for the oscillator., used to synchronize several chips to the fastest oscillator. Its input synchronization threshold is 1.4 V. The SYNC voltage is 3.6 V when the oscillator capacitor, CT, is discharged. Otherwise it is 0 V. If the recommended synchronization circuit is not used, ...
... A bidirectional pin for the oscillator., used to synchronize several chips to the fastest oscillator. Its input synchronization threshold is 1.4 V. The SYNC voltage is 3.6 V when the oscillator capacitor, CT, is discharged. Otherwise it is 0 V. If the recommended synchronization circuit is not used, ...
LT6210/LT6211 - Single/Dual Programmable Supply Current, R-R Output, Current Feedback Amplifiers
... temperature range of –40°C to 85°C. Note 4: The LT6210C/LT6211C is guaranteed to meet specified performance from 0°C to 70°C. The LT6210C/LT6211C is designed, characterized and expected to meet specified performance from –40°C and 85°C but is not tested or QA sampled at these temperatures. The LT621 ...
... temperature range of –40°C to 85°C. Note 4: The LT6210C/LT6211C is guaranteed to meet specified performance from 0°C to 70°C. The LT6210C/LT6211C is designed, characterized and expected to meet specified performance from –40°C and 85°C but is not tested or QA sampled at these temperatures. The LT621 ...
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.