Questions tagged [rise-time]
Anything related to the rise time of a signal. The rise time is a parameter used to characterize abrupt transitions in a signal waveform. It is usually defined as the time needed by the signal to go from the 10% to the 90% of the level it attains at the end of the transition.
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Can I calculate minimum rise time of a transmission line if I know the length and the loss tangent?
Overview: I am trying to work out if it's possible to transmit my 1.2Gbps MIPI data down a 600mm long flexible PCB strip. Assuming I have the impedance correct, will the signal still be degraded by ...
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Fast switch rise time techniques
This question is continuation of this question: High Frequency Square Wave Generator
I am trying to drive a 400V supply and 50ohm load with an RF MOSFET which has a rise time of 3-4 ns and fall time ...
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Pullup Rise Time On AVR External Interrupt
Background
I am designing a simple lamp dimmer using the Atmel ATTiny441 microcontroller. To this end, I have designed a very basic zero-cross detector which feeds the external interrupt pin (INT0) ...
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Trying to figure out rise/fall times for different load conditions
I have a device that requires a certain rise/fall time for its input clock. It specs a .7ns rise and fall time with a 20% to 80% measurement at a Cin=6pf. I should note that the spec rise/fall time ...
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Understanding CLoad of a gate driver and the Cgate of an SiC MOSFET
I have selected an SiC MOSFET (UJ3C120040K3S) for my pulsed power application. My rise and fall time requirements are both 20 nS. My gate drive voltage will be 15 V. Based on the total gate charge ...
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MOSFET Gate Resistor Problem in CHG, DSG pins
I am trying to design a BMS circuit by using BQ77915 . My charge and discharge mosfets are CSD18534KCS. They are only using for switching. The problem is BQ77915 datasheet says for gate resistors of ...
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Are there any published values for GPIO slew rate or rise/fall times on ESP32?
Are there any published values for GPIO slew rate or rise/fall times on ESP32? I had a look at the datasheets and couldn't find any. I also couldn't find any measurements elsewhere. Have Espressif ...
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Fast rise time reed relay
I am currently working on a project related that I asked before here. The purpose is to have 2ns rise time 30ns pulse width at 250V (with 50ohm load). Repetition is 30hz.
I tried avalanche transistor ...
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Generate ultrashort rise times with photoconductive switch or photodiode
I am trying to produce voltage pulses with very short rise time (<15 ps), medium width (20 ns) and amplitudes up to 15 V. As a promising candidate I selected photoconductive switches and ultrafast ...
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Need help understanding rise time parameter in nc7wz04p6x datasheet
I am looking at the datasheet of nc7wz04 UHS dual inverter. The propagation delay specified is 2.3ns. The rise time/ fall time of input pulse in the fig 6 is 3ns. But in recommended operating ...
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Impedance discontinuity problem at transmission line?
I am confused about how the waveform will be to the left of discontinuity. Please help me understand it better.
Here is my understanding:
When the unit step hits the inductive discontinuity, at the ...
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Relation between rise and fall times and capacitance
So I'm currently reading the datasheet of the Motorola 68hc000 CPU and I want to be able to estimate how many devices I can plug to the bus directly before I encounter issues.
So first things first, ...
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Rise time to an input
A device trigger input requires 1 V pulse (can stand up to 6 V) and has 0.5 V threshold voltage. Now if I apply a 5 V pulse with 10 ns rise time, how can I estimate the time it takes a rising edge to ...
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Slow rise time in power supply
Does power supply slow rise time affect the UVLO start threshold voltage to turn on the IC (tps54316mpwprep)?
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Power Supply rise time and configuration
Reset managment:
from HW checklist and datasheet of USB2517 (page 48), is required a rise time for the 3V3 maximum of 400us. In our case it will be above 1ms.
In this case, is it necessary to use a ...
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