You have a driver that drives a long signal & connects to an
input device. At the input device there is either overshoot,
undershoot or signal threshold violations, what can be done
to correct this problem?

Answer Posted / the big boss

This is a signal integrity question for board designers.
there are two types of termination schemes viz. series and
parallel termination. series termination is where a resistor
of small value ( rule of thumb 1/2 of characteristic
impedance of the trace ) placed near the source ( near
driver). the parallel termination is a combination of two
resister ( rule of thumb twice the char. impedance f the
trace) placed near the destination ( input) where one
resistor connects the signal trace to the VCC and other
connects to the GNd.

Is This Answer Correct ?    11 Yes 3 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Write a VLSI program that implements a toll booth controller?

3508


What is the purpose of having depletion mode device?

625


Calculate rise delay of a 3-input NAND gate driving a 3-input NOR gate through a 6mm long and 0.45m wide metal wire with sheet resistance R = 0.065 / and Cpermicron= 0.25 fF/m. The resistance and capacitance of the unit NMOS are 6.5k and 2.5fF. Use a 3 segment -model for the wire. Consider PMOS and NMOS size of reference inverter as 2 and 1 respectively. Use appropriate sizing for the NAND and NOR gate.

3390


Draw the Layout of an Inverter?

2054


What products have you designed which have entered high volume production?

1972






Explain how binary number can give a signal or convert into a digital signal?

678


what is SCR (Silicon Controlled Rectifier)?

640


How logical gates are controlled by boolean logic?

638


Explain what is the use of defpararm?

667


What are the steps involved in preventing the metastability?

655


Explain the three regions of operation of a mosfet.

632


Explain what is multiplexer?

634


Explain CMOS Inverter transfer characteristics?

3456


Approximately, what were the sizes of your transistors in the SRAM cell? How did you arrive at those sizes?

701


Draw Vds-Ids curve for a MOSFET. Now, show how this curve changes with increasing transistor width.

797