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‎म‏ ند ےہ سس = ‎H(Z)‏
‏)27422 14( )21 +1(

PART C
Answer any two full questions, each carries 10 marks.
Design a digital Butterworth filter satisfying the constraints:
0.95 |H(e™”)| > 1 for 05 ۷ > 2

|H(e/”)| > 0.2 for 37/4 > 7> ,

with T=1 sec using bilinear transformation.

Write down the transfer function H(s) of ೩ 2" order Chebyshev low pass filter
with 3 dB cut-off frequency of 1 rad/sec. Determine H(z) by using
approximation of derivative method with a sampling interval of 1 sec.

Compare IIR and FIR filters.

Design a high pass filter with a frequency response
jw) ಎ ‏فد‎
‎H(e”)=1, 2 >> ۱۷۱ < 7
= 0 , otherwise
using Hanning window. Take N=7

PART D
Answer any two full questions, each carries 10 marks.

Draw the product quantization noise model of a second order IIR system.

Two first order filters are connected in cascade whose system functions of the
individual sections are व्र (ट) = 1/0 - 0.5द 1 ) 97 त्र , (2) =1/(1-0.6z"').
Determine overall output noise power.

Obtain the limit cycle behaviour of the system described by
y(n) = Qlay(n- 1)|+ x(n), where y(n)is the output of the filter and 0115 the

rounded operation. Assume a= ५ „ (0) = 5 ‏دعر‎ 0, for ॥ > 0 choose 4 bit

sign magnitude.

What are the functions of TREG and PREG in TMS 320 C24x processor?

Draw and describe the functional block diagram of TMS 320 C24x processor.

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