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1. Prove that the voltage conversion gain of a single-balanced return-to-zero mixer is equal to 2/π even for up conversion.
2. Prove that LO duty cycle distortion does not introduce carrier feed through in double balanced active mixers.
Suppose that we need to combine (in series or in parallel) an unknown inductance L with a second inductance of 4H to attain an equivalent inductance of 7H. Should L be laced in series or in parallel with the original inductance? What value is req..
Calculate the room-temperature saturation current and the forward current at 0.3 V for a silverjn-doped silicon Schottky-type diode. Take for the active area 10-8 m2 and C = 1019 Ajm2 K2.
The threshold voltage is eight times larger than the absolute value of the bulk potential, while the oxide is 20 nm thick. Find the doping density of the substrate and indicate whether the substrate is doped with acceptors or donors.
A spherical region 0 = r = 2mm contains a uniform volume charge density of .5C/m3. While another region 4 = r = 6mm contains a uniform charge density of -1C/mm3. If the charge density is zero elsewhere, find the electric field E for
A DAC is to be used to deliver velocity commands to a motor. The maximum velocity is to be 2,500 rev/min, and the minimum nonzero velocity is to be 1 rev/min. How many bits are required in the DAC? What will the resolution be?
Design a circuit that implements the logic function "f = A' + B" using only two single pole/single throw switches, an LED, and a current limiting resistor.
Describe the basic operation of the n-channel MOSFET, the relationship to VGS, VDS an IDS. This would include such things as accumulation, inversion, pinch-off point, etc. Which end is the drain
A separately excited DC motor fed through asingle phase semi- converter runs at a speed of 1200 rpm when Acsupply voltage is 230V, 50 Hzs and the motor counter emf is 140v.The firing angle delay is 50 degree .
Each X-valley has "jelly-bean" shaped constant-energy surfaces with one effective mass (the longitudinal,ml*) along the long axis and equal masses (the transverse,mt*) along each of the two short axes. Find the Density of States mass associated wi..
You are to design a continuous-time, second-order, lowpass filter that has the following specifications.
you want to send music to the dorms with 15 khz of am modulation frequency on a carrier of 1090 khz.if the carrier
A maintenance firm has gathered the following information regarding the failure mechanisms for air conditioning systems:The units without evidence of gas leaks or electrical failure showed other types of failure. If this is a representative sample o..
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