Question

Group Members Class Assignment 3 A DAC uses a reference voltage of 100 V and has 8-bit precision. In four successive sampling periods, each a second long, the binary data contained in the output register were 10000010, 01111100, 01110101, and 01101000. Suppose that a second order hold were to be used to generate the output signal. The equation for the second-order hold is the following: E(t) -E+ at + B, where Eo starting voltage at the beginning of the time interval (a) Determine the output voltage for the four sampling instants 14) (b) For the binary data given above determine the equation for the voltage as a function of time between sampling instants 3 and 4 using (i) a zero-order hold (i) a first-order hold (ii) second order hold. (c) Comment on the results 12) 13 [41

Answer 1

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つult): 45.163,25-5.46 $15 t Vblläqe unc Take 45-和3/25 Vas gtaikný oubíl voltage to= 45.703125 At t 0, E(t): 45 . 구 b 3125 talo) +RE), Al t 45.103125 45わ915 + α(-2) +p(.2). 50.18125 plyng eon@coth 2 ord Subhatt论 F(+)- Cs) scanned Scanned with CamScanner 01953

d2. 4244 ECt): 45.703,25-2.9 246 t - OJA53t2 At fouh instant, Setnd bdes held gels h5.to3125-2.92%-0.1953 ECi)- = 42-5チ 225 ECU)- ,5 103125 5.46815 ho. 23434 Hence, Second bdes hold move accu al CamScanner