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1.562 integrated-circuit questions.

I would like to create an integrated circuit with the IC TP4056-42 but without the battery temperature sensor. The datasheet speaks that when we do not use temperature sensor we must ground the pin 1 ...

I'm armature to electronics (Computer Engineer by profession) . And, i'm doing some automation project. In that i have to read a Half bridge LVDT transducer, particularly solartron AX/1/SH. I got its ...

I am trying to repair a GPS unit. There was a zener diode (to56 PolyZen protection diode) which had blown off and I had replaced. This is part of the battery charging circuit I believe, as once I ...

I am trying to use a DAC8571 (datasheet) and I'm trying to set up a communication between this convertor and an Arduino Mega via I2C. The communication between the Arduino and my computer is done ...

I'm just finishing up a sync combiner and audio/video PCB. I'm trying to impedance match my traces and I've done so for the 75 ohm RGB lines. Now I'm looking at the TTL level Hsync and Vsync lines ...

xpc17a90mtv CXD9540TQ t6X10c-0002 F100aab sony I tried googling them, and didn't turn up anything helpful. A found a vendor that sell #2, but I am not interested in buying one. The circuit provides ...

Having an FPGA that loses its configuration after power-off, is there a way of creating a system that boots the FPGA automatically after power-on?

I have interfaced a smart energy meter IC (ADE7878) to a microcontroller. The datasheet of the IC can be found here, http://www.analog.com/media/en/technical-documentation/data-sheets/...

I need to implement a custom 64-bit wide parallel bus interface operating at 100MHz (800MB/s total bandwidth). While there are no ready solutions for this, is it possible to implement such bus by ...

Why cascaded inverters are used in the multiplexer when it is possible to realize the circuit using a single inverter.

Does anyone recognize this logo? Just trying to find out who made it. Thanks

I opened an emergency rechargeable light and saw the charger circuit which is quite simple: a bridge rectifier and then a big capacitor (I don't know the rating). There is no transformer, but the ...

When injecting a uniform power dissipation in a chip of IGBT power electronics modules by finite element method (FEM) in COMSOL (a good software for thermal analysis), a non-uniform temperature ...

What the title says. I'm curious how exactly a digital potentiometer works. Is it something like a pair of pass transistors like below? simulate this circuit – Schematic created using ...

I have a little PCM2704 based circuit assembled from a kit. The chip takes digital input for volume up/down but I would like to replace those with a knob. Regardless whether the knob is attached to ...

I have a SN75176 chip. The datasheet shows it with a semicircle at one end for orientation however my chip looks like this: Is it safe to assume the pin by the circle is pin 1? Why would the ...

How can you check a 74ls83, what must be the output for s1 to s4 and carry for each inputs? And whats the voltage required for it to work

I am working on this project where I am going to make a soil moisture sensor. The principal that I'm going to use is the change of capacitance of the soil with moisture. What I'm going to do is make a ...

I need some help identifying these 2 SMD parts. One says .3Ft and the other says .1Ft. They each have 6 pins. They are found ...

Can anyone give me any suggestions for some good gated voltage integrators that aren't continuous, and more like a boxcar integrator? I want to integrate the the total voltage across a pulse coming ...

I need a trigger circuit that gives several high pulses for an "out_0". After 5-6 pulses from out_0, it then gives one high pulse for an "out_1". I don't need any circuit that's large or has high ...

I'm sorry if the phrasing is somewhat weird, but the question is hard to articulate. I've created an IC Sample-and-Hold where I have a hold capacitor at the output. I want to charge this capacitor ...

Reading a circuit, I found the following component: Which is a simple DC-DC converter. There is no possibility to find a datasheet for it. My two questions are: I understand that VO1 is supposed to ...

Recently I bought a couple of BA3121s to fight the annoying ground loop problems when using several/separated modules (MCUs, BlueTooth, USB etc) in class-d amplifier audio projects and all the modules ...

I have read some online tutorials about soldering through hole components which say that transistors and ICs are delicate components and can be easily damaged by heat. So they recommend to keep the ...

I read this sentence from a book: "MR is a dc reset". It said about master reset leg in a counter IC. I have been searching but found nothing related to this terminology. I wonder what a dc reset is?...

I have a reasonable working knowledge of electronics but am trying to find a solution to a puzzle I've come across and have not been able to find a complete answer. This involves a stepper motor and I ...

I was studying about 8259A from the Intel documentation of Intel 8259A. What I came across was that the Read/Write Logic has an input from control logic.In all other ICs that I have seen, this is ...

So, I got my 74190 counter shows number like this 9-8-7-6-5-4-3-2-1-0-5-4-3-2-1-0-5-4-3-2-1-0-5-4-3-2-1-0 and so on. My questions: What can I do to change the output count down into 5-4-3-2-1-0-5-4-...

I know there are several commercial products for maximum power point tracking for a single power source (solar cells for example). But does anyone know any solution for the case where there are ...

I've been connected pins input A and C into VCC so the logical number is 1 and input B and input D with 0. The counter starts with 5, but it doesn't clock or change from number 5 into 0 (5,4,3,2,1,0,5,...

I understand the traditional difference between the 7400 series and the 4000 series logic ICs, but since there are CMOS versions of the 7400 series, is there an advantage to use the 7400 CMOS version ...

I need a solution to make 200kHz TTL to 400 kHz TTL using frequency multiplier or frequency doubler? And also please do mention some commercially available frequency doubler IC chips. Thanks.

The BA3121 is an audio (ground loop) isolation amplifier. In the datasheet there is no simple pinout picture with names of the pins, so I draw this pinout picture by following the block and the ...

I could not find part number and datasheet for this 8pin chip. I need help. Thanks.

I need to design a switching voltage regulator, all parts work fine but I am having trouble figuring out the feedback, on the negative terminal of my comparator i have a triangular wave that cycles ...

I'm working on 12-bit 200 MS/s pipeline ADC design. this ADC has 5 stage. the structure of ADC is 2.5-2.5-2.5-2.5-4 bit. In the first step I want to design a fully differential folded cascode op amp ...

In another question I asked about ways one might obfuscate the design of a system, to prevent unauthorized cloning. One suggestion was that IC manufacturers are often willing to put custom labels on ...

I've made 4 bit adder circuit using 4008ic. And the sum output of the two 4 bit numbers from that Ic was feed to one bcd to 7seg decoder(74ls47) so that i can get decimal output. But since i cant ...

Recently, while doing my diploma, arose some questions 1) Can my solution be used in chip design? As it's known it's important to connect different layers in an effective way, so can my problem - ...

I'm currently sorting my electronics, but I'm not sure if a voltage regulator is an IC. I can't seem to find any information and I am struggling to understand whether certain components are ICs or not....

I accidentally substituted diode RS1BB-13-F for S1BB-13-F. RS1BB-13-F's forward voltage is 1.3V, while S1BB-13-F is 1.1V. These substitutions were at D8 and D9 in the schematic (top right corner). ...

i would like to ask about what is a Schmitt Trigger and about its application. I searched a lot but still didn't understand it. Please explain step by step and hope you help me in its applications ...

I came across a datasheet that says: I want to know what does this: "do not “hot switch” power levels greater than +20 dBm (Vctl = +5Vdc)" means. Based on its truth table, I "assume" that it is ...

Where there is a question mark, does the current flow there? Also, why does current travels through the 6Kohm resistor, and it doesn't all go to the 2mA source? Lastly, how would you go about with ...

There is something about history of computer hardware and ICs that confuses me - a jump from wardrobe dimensions of last generation of transistor computers to ICs which were so small as "the size of a ...

Dear all I have an IC marked as 4N0409GAB609. ANd I know it is a MOSFET. But I could not find its datasheet on google. Can anyone help me in finding the details of this IC?

I am working on a small hardware project where I am generating a PWM pulse of 5ms from an ARM chip pin that I provide as an input to a counter chip that counts these pulses. The input pin on the ...

This question and the answers hits close to the topic. One picture shows it as SOD. Silicon-oxide dielectric? I'm aware that around/within the transistor, silicon oxide is grown for insulation where ...

I have drawn a circuit but I am not sure how I can make it work if I will have to build it on a breadboard. Is there any breadboard simulator type of thing?

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