Questions tagged [datasheet]
Datasheets are the primary documentation about components, describing their functionality and electrical properties.
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Position sensor PS732 feinmetall
I'm redesigning a board in order to use this sensor datasheet. After reading the datasheet I have missed the potentiometer principle from third picture where this can be seen:
You can see how Rp is ...
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0answers
30 views
Queryable open electronics database for e.g. op-amp parameters [on hold]
I often want to make complex parametric searches for components, particularly op-amps. The large component sites like RS, DigiKey, etc. allow basic queries via their websites, but these are usually ...
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1answer
29 views
Doubt regarding dual channel MOSFET datasheet
I came across a dual channel MOSFET link for dual channel MOSFET
But I am confused about the drain current of 0.63A. Do they mean drain current of each channel is 0.63A or for both channels combined?
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1answer
49 views
Embedded System power requirement calculation
How can I measure total power requirement of an embedded system which consists of a lpc2138 interfaced with various other components such as lcd, humidity sensors and temperature sensors. Also the ...
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2answers
49 views
MSP430 Baud Rate Generation: Datasheet Discrepancy
My project is based around the MSP430F5529. From the MSP430x5xx family user guide:
NOTE: Baud-rate settings quick set up
To calculate the correct the correct settings for the baud-rate ...
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3answers
1k views
What is the “maximum power” of an antenna?
I was reading the datasheet of an antenna and I came across the parameter "Max. Power (total)", measured in Watts. What does this stand for? Can it be measured to check that the datasheet is right?
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1answer
35 views
Help with two input specs of a DC-DC converter
Regarding this DC-DC converter datasheet the input specs are given as:
Mine is 12V to 5V DC and called MV 1205S. So my input voltage is regulated 12V DC.
I have couple of issues with this part:
I ...
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2answers
176 views
How to understand an ultrasonic sensor datasheet?
I'm trying to model the ultrasonic sensor for a simulation and I need to somehow express in what angles and distances the object will be detected by the sensor.
What does sensitivity mean? It is set ...
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2answers
55 views
Is this relay datasheet incorrect? (Omron G6SK-2)
I'm using Omron G6 series relays, both the non-latching (G6S-2) and and dual coil latching (G6SK-2) for a few PCB designs.
What I didn't know was that some models of relays give their connection ...
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1answer
22 views
NTE 4050 buffer and current sourcing capability, datasheet reading woes
I am trying to construct an output that is switched on by the inputs to a buffer. The buffer input, in the final design, will be sourced from an Arduino or Raspberry PI. I needed the buffer because ...
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0answers
36 views
Microchip MRF24WN0MB datasheet for use in STM32
We have designed a board where a Microchip MRF24WN0MB WiFi is connected to an STM32L082 ARM micro-controller through SPI.
I can generate code with STM32CubeMX (compiled with Eclipse SW4STM32) and run ...
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2answers
43 views
What is “Vop” sensitivity unit?
I am studying the datasheet of an ultrasonic transducer (Murata MA58MF14). I understand the maximum input voltage unit (voltage peak-to-peak), but I do not understand what exactly the sensitivity unit ...
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3answers
53 views
Which relation in the data-sheet shows the frequency vs gain relation explicitly?
This opamp output starts getting distorted at around 10kHz and the amplitude halves around 25kHz.
Where in the data-sheet shows the relationship between the frequency ant the attenuation? Something ...
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2answers
34 views
Maximum Clock Input Frequency Datasheet Confusion
I was looking for an 8-bit parallel to serial shift register to use in a project I am making. Initially, I thought that the 4021 would work perfectly for what I need, however, after looking at the ...
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0answers
26 views
Register description of TFA9896
I'm looking for the register description of TFA9896. Unfortunately, the datasheet doesn't contain these information: https://www.nxp.com/docs/en/data-sheet/TFA9896_SDS.pdf
Do you know where to find ...
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1answer
39 views
What is the receiver component in Snap Circuits part U24 (Infrared Receiver)?
I'm trying to find a datasheet for the receiver component in Snap Circuits part U24, which is an infrared light detector/receiver. It looks exactly like a TSOP382 sensor (picture below) but doesn't ...
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2answers
80 views
PS/2 mouse / keyboard interface info and classification
My hardware interfaces teacher in the university gave a task to find info about PS/2 interface and fit it into a classification by answering a list of questions. Here's what I've found:
Which type ...
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4answers
68 views
How to find max load limit in datasheet?
I have а datasheet but I don't understand: how to find max load limit in datasheet?
Can I use this SSR to switch the load (12V DC), and what current can I count on?
Thanks.
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2answers
69 views
Contradictory information in LM339 datasheet
I am inspecting the LM339 datasheet (link) and I find contradictory information regarding the operation principle.
Page 10 states:
The output consists of an open-drain NPN (pulldown or low-side) ...
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2answers
73 views
Understanding transformer datasheets
I came across this transformer, and there are a few points of the datasheet that seem unclear to me. I can't seem to find any references for what exactly they refer to, so I'll ask here:
Where the ...
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1answer
41 views
Proper connection of choke coil in ethernet magnetics
I need to use the medical ethernet magnetics by Pulse HXU6200NL (it is the only 2MOPP medical-certified PoE magnetics I can find). These are of the rather common transformer/choke coil topology. My ...
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39 views
Powering ILI9341 LCD from MCU IO pin
Looking at the ILI9341 datasheet Electrical Characteristics, I just can't find information about power consumption. The information is also missing from the LCD module datasheet (ER-TFT024-3).
I know ...
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0answers
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Gate voltage of power semiconductor devices in datasheets
Many static characteristics of power semiconductor devices are presented in available datasheets at a specific gate voltage. For example, they are achieved at Vge=15V for IGBT devices and Vgs=20V for ...
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1answer
1k views
Why does this microswitch datasheet specify a minimum load current? [duplicate]
The Omron VX series datasheet mentions on page 6 that "Using a model for ordinary loads to open or close the contact of a micro load circuit may result in faulty contact.", and shows that their micro ...
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3answers
78 views
What could be a near rail-to-rail opamp with very low voltage for this use?
What could be a near rail-to-rail opamp with very low voltage for this use?
LM386 seems to be out of limits for my needs.
How do I choose it from datasheets? What values are important (of course ...
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3answers
57 views
Is rated current supposed to vary based on voltage?
Recently I have been reading a lot of datasheets and noticed that many manufacturers specify a current rating for their products (especially connectors) without specifying at what voltage the current ...
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1answer
33 views
What does it mean if input impedance given as a current regulator?
This SSR relay has an input impedance given in its datasheet as:
It says "Nominal Input Impedance is a current regulator". At 5V 16mA.
But how can I model this type of input impedance? I will use ...
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1answer
42 views
Datasheet Notation for Filter Parameters
I've been reading through the LTC1264-High Speed Quad Universal Filter Building Block datasheet but I'm having some trouble deciphering the meaning of some of the variables used in the equations for ...
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0answers
52 views
Looking for data sheet of the following Modbus Sensors #updated
I'm a noob in this area, please ignore any stupidity and lack of info and any help is appreciated and I'm ready to provide all clarification on the post if by chance any info is missing.
So i have ...
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1answer
69 views
Replace bad voltage regulator with another one that have lower output current
I need to replace a shorted TL750L05 +5V voltage regulator with a new one. The problem is I can not easily find a replacement part that has the same features. I found the LM2931M-5.0 but is rated at ...
6
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2answers
204 views
Difference between [W] and [WS] power rating of resistors
I see some datasheets of power resistors where power ratings are in Watts [W] and some in [WS] which I don't know what they mean.
What is the difference between them?
Example of datasheet
Some ...
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3answers
205 views
How can I determine whether this is a “rail to rail” opamp from its datasheet?
I know that rail to rail means that the opamp output can have a swing upto its power rail voltages.
So for a rail to rail opamp lets say if the supply test condition is +-12V, I would assume that the ...
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1answer
787 views
What do these arrows on a pinout represent?
What do these arrows represent?
Is there any way to memorize it easily?
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2answers
42 views
How to generate board plot/image in Eagle
I designed my own PCB in Eagle so I have both the schematics and the board files.
I would like to generate a figure like this one made for Arduino board in order to include it in the user manual that ...
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1answer
56 views
Pseudobipolar signal example - Analog Devices AD7682
What is a pseudobipolar signal? I read this word in the datasheet below:
http://www.analog.com/media/en/technical-documentation/data-sheets/AD7682_7689.pdf
Can you show me an example with a plot ...
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1answer
44 views
What is such parameter called for a frequency to voltage converter
In a frequency to analog voltage converter what is the parameter which is related to the response of the conversion.
So for example I use this converter module and Im wondering how fast the change in ...
2
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1answer
72 views
FPC cable contacts. Bottom vs Top and Bottom
I would like to design custom FPC cables as extensions of my flex pcb that will connect to this connector of another PCB.
My question is about the Connector/Contact type. In the digikey page it ...
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2answers
87 views
What properties should I look for in a microcontroller if I just want to work with incoming 16 bit data?
I am very new to picking microcontrollers for projects. I have a project in which I have 16-bit data coming in from an amplifier/ADC. Simply put, I would like the microcontroller (very low power and ...
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0answers
32 views
How can I access process node data sheets?
I am searching for process node data sheets. Specifically, I'm interested in TSMC's 16nm, 12nm, 10nm, 7nm nodes, as well as Samsung's 14nm, 10nm nodes. I did not find anything with Google.
How can I ...
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1answer
29 views
replacing obsolete HEMT and differences between Package/Case and Supplier Device Package
I've been designing an amplifier, with ATF33143 as my HEMT in mind. Yet, I just found out the said HEMT went obsolete. So I started looking at SKY65050-372LF as a possible replacement.
On the DigiKey ...
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2answers
123 views
What is the size of this microcontroller? Having trouble reading a data sheet
I am trying to find a small enough microcontroller for a project, but I am not familiar with the notation used to denote the sizes in this image:
What does that mean when it says 12,20/11,80 SQ and 7,...
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2answers
33 views
Ic-Vge IGBT Curve
In the figure below, presented in the manufacturer datasheet, you can see the Ic-Vge curve of an IGBT device. As mentioned, it has been drawn at Vce=20V. What does this equality mean? Can we have such ...
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2answers
512 views
Schematic indicator interpretation
I was attempting to get familiar with the Texas Instruments CDCE62002.
While checking the datasheet of the evaluation module, I came across the following indicator in the schematic. I'm curious about ...
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1answer
47 views
Bandwidth (Data rate) of a laser beam when no datasheet exists for the module
I ordered a large number of laser modules that look like the following:
When inspecting mine with a basic multimeter, I noticed a 90 ohm smd resistor is fitted on the module. I see no other ...
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1answer
53 views
How to find RS485 UART pins are inverted in the data sheet?
I want to know, how we identify the RS485 pins are inverted. I am using at91 microcontroller?
This sam9260 board has four rs485 in which two of them are inverted. ...
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23 views
Difference between RGB TN and RGB IPS display?
While I know the pros and cons of each type of screen and how IPS is superior to TN screens in viewing angles and color reproduction I'm trying to understand how these two screens operate differently.
...
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1answer
49 views
Checking my understanding of this datasheet of a TFT LCD display?
I'm trying to modify an HDMI decoder board by Adafruit(https://learn.adafruit.com/adafruit-tfp401-hdmi-slash-dvi-decoder-to-40-pin-ttl-display/downloads) to work with an IPS screen that has a 51 pin ...
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1answer
39 views
What load can i connect if data sheet is missing output voltage
I am looking at a DC to DC converter data sheet that has an input voltage of 0V-100V. The datasheet only mentions a max output current of 4 amps. Is it safe to assume I can place a load of any voltage ...
2
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2answers
827 views
What is this array-like notation of registers in datasheets?
I am reading BMP280 datasheet (pressure&temperature sensor). On different pages they use the following notation:
$$register\text{_}name[a:b]$$ where a, b are integers. For example, on page 13 "...
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3answers
362 views
ESD ratings of diodes and bipolar transistors
While it's easy to find ESD ratings for ICs (bipolar, CMOS, and any mix) and to some extent for MOS transistors (for the inherent reasons), I don't find ESD rating for many common diodes (left apart ...
