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The answer to ErlangA telephone switching board can handle 120 phones. Assuming the following, and determine the outgoing traffic intensity and the number of channels.
* On average 5 calls/hour per phone* 60% of all calls made are external* Average call duration time is 4 minutes* GoS = 0.9%
Determine the range of values of K such that the system is stable for s(s²+4s+10)+ k (s+5)=0
"Divide by 3 clock with 50% duty cycle" is the most commonly asked ASIC design question. This solution gives a simple design in which only 1 counter is required which works only on positive edge of the clock.
State Carson's rule for bandwidth estimation. What does it reduce to for NBFM and WBFM and d erive an time domain expressionfor the output xd(t) of the system
Construction of different types of power transformer, significant energy savings
How many voice channels are carried by a E1 transmission given 8 kHz sampling and 8 bit words? Why is an end of frame marker always required in a digital telephony system?
Explain why an instrumentation amplifier has more than one stage? How would you increase the output current of an op-amp?
Electrical & Instrumentation Use, State typical values for the loading effect on a low voltage AC circuit containing a lamp when measuring current with
A 1 kHz sine wave signal with a power level -10 dBm is applied to the input of the amplifier. What is the power at the amplifier output?
Design a bandpass filter of 'Sallen and Key' topology and having the following characteristics fo = 3.3 kHz, Q = 2.2
Finite Difference Time Domain (FDTD) numerical method to develop for me a software program that simulates - evaluates Specific Absorption Rate (SAR) Distribution in a Human Head Near a Mobile Cellular Phone as a student project.
Invesitagtion of Intermodulation through an amplifier, An amplifier is designed to handle frequencies around 9 GHz. The bandwidth of the amplifier is 2 GHz with a center frequency of 9 GHz
A DSSS-CDMA signal has a chip sequence that is 1,000 chips in length. The sequence repeats every millisecond. Define DSSS-CDMA Chip Sequence
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