Question

An example for Analog Multipliers is Oscillation (a) Filtering (b) Attenuation (c) Modulation (d) W= (1 + mvx(t)) sin(Wct). This is a signal. (a) Frequency Modulated (b) Amplitude Modulated (c) Phase Modulated (d) Frequency Shift Keying 2 V V2 The output of the Analog Multiplier is given as v. = cos((2 – 01). This is an application of Analog Multiplier as (a) Balanced Modulator (b) Frequency Doubler (c) Divider (d) Phase Detector if its ports can be interchanged. (a) asymmetric (b) lossless (c) A two-port circuit is symmetric (d) synchronous If the two-port has input as a voltage and output as a current then this is a ............ . (a) Voltage Amplifier (b) Transresistance Amplifier (c) Transconductance Amplifier (d) Current Amplifier

Answer 1

An exam emple for stnalog Multiplier, is - (c) Modulation are Analog multiphers are crauit which take two analog inputs and output is proportional to their product used basic elements which Analog multipliers are amplitude Analog communication especially modulation in in W = (1+ mvx (t)) sin (wit). This is a. signal 16) Amplitude modulated standard representation of amplitude modulated signal A (1+ Kamet)) coswet or Ac(1+ kam ct))sun wit - کی۔ Best

The output of the Analog Multipleer is given as Vo = V. Va cos(0-0). This is an application of Analog 2 (di multiplier as. Phase detector Analog multiplier are ured as phase detectors PLL (Phare-Locked looped) systems as V = V, cos (W, t + o) Vo = V. Uz cos (W2-w,)t + (0-0) 2 if w=w, FIPF Low pass filter 9 = V₂ wlwetto) Vo = V, V₃ cos (0,0) 2 Analog multipher be can & The two port curcunt is if its ports inter changed (0) Symmetue A two port arcut is said to be symmetrial of its ports ports can be inter changed withert the terminal voltages and currents. changing

voltage and of the two port has input as a output as a current then this (c) Trans conductance Amplifier is In trans conductane Amplifier the output is and current and us input voltage transconductance is given by io Vi