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Well the design constraints are the noise, speed, offset and power dissipation. For high speed, you will need minimum length transistors. The noise is mostly dominated by the input differential pair. So you have to do a PNOISE sim and keep increasing the width of input diff pair till you achieve your target. Similar exercise needs to be carried out
From the plots we can see that the gain power is dropping at 870MHz, but for sure you can get the desired power of 10W. But if your main target is high efficiency, using a 16W transistor to deliver 10W you will get significant drop in PAE. power added efficiency is maximum near the P1dB of the amplifier. You will lose (...)
Quick Charge 3.0 offers a more granular range of voltages: 200mV increments, from 3.6V to 20V. That way your phone can target one of dozens of power levels. There is a command data protocol for authorized readers.
Hi Designers, I would like to get some feedback regarding my concern on a LDO design. I'm to design a LDO circuit to power-up some analog blocks, etc ADC, Oscillator and many more. So, my question is, what is the range of frequency I should target for to have better PSRR. I have read some journals, looked at some datasheet, it was mentioned tha
RapidIO and Time-Triggered Ethernet are used in many overlapping applications including Avionics. While TTEthernet has deterministic transfer delays, RapidiO provides extremely high data rates. Both standards provide significant flow control, priority based transfer, and virtual link mechanism. To select the right standard for the target applicatio
Hello all, Let me define target specs before I go into the problem. 129417 So, according to the device load pull data I selected the optimum Z_L = 2.01+j*0.85 which meets the target specs. Z_s =0.65-j*2.75 (Source impedance). I am attaching the complete the BOM +layout. Please, see below 129418[/
Hi I have a micro-controller based circuit, but I cannot program the micro. The error it gives is: Unable to enter programming mode. The read device ID does not match the selected device or any other supported devices. Please verify device selection, interface settings, target power and connections to the
Yes - run a rail analysis tool - then update your power mesh + decap fillers until your target IR drop is met.
Large reader coil (30 - 50 cm), power amplifier, possibly receiver preamplifier. You need to achieve the minimal NFC field strength of 1.5 A/m at the target location.
I connected the DSK board to my laptop (windows 2010 OS) via USB, and ran 6713 DSK Diagnostics Utility v3.1. It said: ======================== Starting diagnostic test suite. --> Running USB diagnostics. Can't connect to target. ? ** Plug in power and USB cable. ? ** Can't run if Code Composer or Diagnostic already running.
ATF34143 is an LNA (Low Noise Amplifier), and by definition any LNA should work in Class-A. So, good PAE (power Added Efficiency) is not the main target of performances of this transistor. For best performances follow the Avago application notes 1190 and 1191.
Hello, I am trying to program the PIC16LF1823 with ICD3. But it is giving error "target device was not found (could not detect target voltage VDD). You must connect to a target device to use ICD3." Please help me in resolving this issue.
Dear Members and Colleagues I am having some trouble designing the APD receiver in a laser rangefinder. My maximum range is only 100 feet while i need at least 500 feet target range. The setup is described below. Please do correct me if i am wrong or if i am missing something. Transmitted power & Optics I am using a pair of orthogonal plano
Hi ananthesh, Slew rate of opamp might influence the start-up time of the voltage reference. When it is power off, it takes some time to start up the target value. If more current is burned, your reference voltage will start up faster.
Hi, I want to calculate the power of a radar signal at the target. By now I have the equation: PtGt/4πR?: power density But I have to accoount for the propagation attenuation. I searched some materials and found it?s relative complicated. Are there any formulars with which this can be done. The arguments are: fr
Kelvin method is 4 wire and eliminates contact resistance error with outer 2 leads supplying current and inner 2 measuring voltage. CC method with voltage sense and power limit prevents target burnout. I think an auto-scale approach might start with 10, 100, 1000 mA where it steps down or up according to voltage threshold of >100mV & <10mV.
In embedded systems, the power consumption is a very relevant issue in such a way that the use of inefficient energy converters makes it less attractive product to the customer. Therefore you must consider for what target application such design would be applied. +++
1. Difference between target/link libraries. 2.How to solve timing issues? 3.What are the different kinds of cells used? 4.Characteristics of H & LVT cells.
Hello All, Since recently I have been unable to program my MCU in AVR Studio 5 or 6 because they are surprisingly not recognizing the device signature of my MCU, I get this message: "Unable to enter programming mode. Please verify device selection, interface settings, target power and connections to the target device." Can (...)
Hi everyone, I'm trying to program/debug/erase a Freescale MC12311 transceiver IC (which has an HCS08 MCU embedded in it) via the 6-pin BDM header, using a P&E USB Multilink Universal, and CodeWarrior 10.4 IDE, on Win7 64-bit platform. The following "power cycle" error occurs when I try to program/debug/ease the target IC: i.stack
Standard cell height depends on the design choice, if you want a 12-track, 14-track standard cell or any other height. Track here denotes m1 pitch (min width+spacing) allowed in a technology. A particular technology node can have more than one height of standard cell library depending on the application, target frequency and power.
check ur power supply pins. generally it happens when target device does not get required voltage.
Some designers used the metal filling to "improve" and meet the IR drop/resistivity target by connecting the metal filling to power nets, for example odd layers to ground and even layers to supply.
problem facing while loading .hex file in atmega32. i am using extremavr as a loader. errors displaying of screen are as follows power on failed...... cannot communicate with target chip.... please help in this case...
power on failed cannot communicate with target chip TASK FAILED these are the errors showing up. help there any problem with the fuse bits?
Hi everyone, I have a problem when adding stripes in my design. I want to add four vertical stripes. The first one works. The second and third one are shorter than the value I set. The fourth one is cut into two segments. There are warnings like this (ex. fourth stripe). The power planner cannot find target for the antenna segment at 19.30 48.1
Please, post the schematic of the circuit you are utilizing to program the target device. Also, how are you powering the target device, through the PICkit or external power supply? BigDog
Logic library provides timing, area, power, functionality descriptions. target is to indicate the name of the std cell library name. Link path for all libraries: I/O, RAM/ROM/EEPROM, custom block, std cells.
I am not agree with you, that really dependant of the application. We currently design a chip with leakage target is 200nA, in 0.18TSMC, with more 100kGate, embedded Flash, here the major target is the leakage not the dynamic, because the application is medical, human body embedded.
There are always compromises between Optimum Max. power Output or Maximum Efficiency or Minimum Distortion etc.That's why , you should choose a optimum point which is closer to your target. But you can not consider ALL at the same time,you have to sacrifice a bit from each..
Does anyone know how to enable the target power of am try to connect S3C2440 arm Module with USB i run the arm module without external powe
I'm confused...why did you compile with Icarus if you want to use Xilinx power Estimator? If you compile your Verilog design files in ISE then you can export a power estimation file of the as built design to the power estimator and get a very accurate power estimate for the target Xilinx device. If you are (...)
Hi, Whre can i get the timing,area,power and physical info of IOPADs? I know that there is just some volage constrains in target lib like the following: " output_voltage(GENERAL) { vol : 0.4; voh : VDD - 0.4; vomin : -0.5; vomax : VDD + 0.5; } input_voltage(CMOS) { vil : 0.3 * VDD; vih : 0.7 * VDD;
Hi, In my simulation in Cadence PDN for decoupling analysis , there are 6 bulk caps and 23 small caps ranging from 0.001uF to 0.47uf. The result shows violation of target impedance for that particular volt rail of 1.2V in 10-100MHZ frequency range. I tried to add some more decaps with smaller values, but its reducing the target im
A system-level solution would be to implement dynamic voltage and frequency scaling, which would require the designer to characterize the ASIC across a supply voltage and frequency range. Foundries supply mult-Vt devices, based on your power/performance target, choosing the the correct Vt devices for your design (one or more) is crucial to limit l
Good evening folks. I have been starting work on a project using the microchip wifi modules along with a PIC18F96J60 as used on the demo board. I have put together a circuit based loosely on the design and had it manufactured, I then only populated the microcontroller and associated circuitry such as the 10MHz crystal an
I'm using MPLAB v8.88 and PIC18LF4620 is soldered on the pcb board. I have couple of questions, In my mplab i couldn't find PIC18LF4620, but can find PIC18F4620. I looked up into the datasheets. 18LF4620 is a low power device. Can i select the 18F4620? Do i have power the target board externally while programming usi
anyone know it? what's the different target applicatioon? thanks
Hi, A lot depends on what type of programmer you have got and what software it uses ? let us know what it is. Some programmers like the Pickits can sense if the target board is powered from another Vcc source and turns off its Vcc automatically.
If you look at the bottom of the board you will see a test point labled 'VBUS'. This is connected to the USB incoming 5V. If you connect Pin 2 to this via a diode, (anode on Pin 2), you could power the PicKit3 from the target power supply.
Hi when i synthesize my design in design compiler following error appears "Error: The target_library does not contain an inverter characterized for operating condition (voltage = 1.080000V, process = 1.000000, temperature = 25.000000). (MV-006) This problem occurred at: Error: The target library does not contain an inverte
Dear All, For a power trace, does target impedance matching require? I know target Impedance formula : Ztarget=(power Supply Voltage X Allowed Ripple)/Current ex: Ztarget(3.3V)=(3.3Vx5%)/2A=82.5mOhm On the basis of this formula how a designer can deside the width of the trace? Does (...)
From my expirience. Average current for TELIT was about 450(mA). So, you have to design power supply taking into account 600(mA) for HSDPA. I would recommend to set target to 800(mA) to be sure. In order to ensure 2A spike, use big capacitors -C = (1/dV)*432*1e-6(F), so for dV = 0.1 about 4320(uF), for 0.2(V) about 2200(uF). Do not use one big capa
Hi, I'm simulating my PCB for power integrity (IR Drop). I got a term "target Impedance" (Ztarget) Ztarget= As per my consideration, Voltage= voltage on a trace. % Ripple is tolarance in voltage. (for example, 5V, 5% Ripple) But I dont know, how to calculate Max Transient Current for a
1. The programmer itself is powered from USB. That target device must be supplied from its own power supply during programming, since this programmer circuit cannot provide power to the target. 2. C1,2 - yes, either should be good. C4 - yes. C5 - Usually that would be 220nF (nanofarad) for Vusb, (...)
Setting jumpers: J1 power target Supply target with 5V (USB voltage). Be careful with this option, the circuit isn't protected against short circuit! J2 Jumper for firmware upgrade (not self-upgradable) Set this jumper for flashing the ATMega(4)8 of USBasp with another working programmer. J3 SCK option If the (...)
hi, when you will connect target device i.e. PIC16F876 to it, it will detect the device and will show something like this: target Detected Device ID Revision = 00000004, (ID can be different.) Are you using PICkit3 power supply or external? Hey shreyas, i have sort out the problem is at the mome
It depends how > 1W you want (and the target cost and efficiency) as to the ideal sort of converter/regulator. At the cheap, (usually inefficient), low power end, you could use something like a 555 (or similar rail-rail oscillator) driving a capacitor/diode charge pump - like Schematic: 555 based volt
In order to get enough gain. The final amplifier stage (output stage) is not enough to amplify the signal to target power. Well, I guess it makes sense. then what is the difference between the PAD and PA? what is the efficiency of PAD? I will guess it is less efficient. Then how much power it will burn compare
Hi, This question is regarding Frequency domain power integrity analysis Do we need to consider PDN Frequency analysis for power nets that are routed as a trace and not as big as a layer? Is dimension of the plane a distinguishing factor for doing target impedance power integrity analysis? Regards Ln