DE FINAL EXAM REVIEW
1. Express each of the following numbers using the appropriate SI prefix.
Don’t forget to retain the units.
a.
0.000047 F
=
b.
17500000 Hz
=
c.
0.0000000157 A
=
d.
6800000 
=
e.
0.00425 V
=
2. Convert the following numbers into the SI prefix shown.
a.
6800 pF
=
b.
2.7 M 
=
c.
4.24 GHz
=
d.
25.67 F
=
e.
0.0127 nSec
=
(Red / Violet / Brown / Gold)
f. Rc =
(Brown / Red / Green / Gold)
g. Rd =
Resistor Re
(Blue / Gray / Orange / Gold)
h. Re =
i.
3. For each of the circuits shown below, calculate the value for RT.
Be sure to put your answer in proper engineering notation and use the correct
units.
Calculations:
a) Rt=
a)
c) Rt=
c)
4.Using the laws of circuit theory, solve for RT, IT, IR1, IR2, IR3, & IR4. Be sure to put
your answer in proper engineering notation and use the correct units.
RT
IT
VR1
VR2
VR3
=
=
=
=
=
VR4
=
5.For each of the two analog signals shown below, determine their amplitude (peak),
amplitude (peak-peak), period (T), and frequency (F). Be sure to put your answer in
proper engineering notation and use the correct units.
Amp(peak):
Amp (peak-peak):
Period:
Frequency:
Amp(peak):
Amp (peak-peak):
Period:
Frequency:
Note: Why isn’t the above signal considered a digital signal?
6.As a digital designer, you will occasionally need to redesign an existing circuit. In
doing so, you will come across part numbers that you are not familiar with. Use the
Internet to identify the functionality and manufacturer of each of the part numbers
listed below. Note that many parts will have several manufacturers. For the purpose
of completing this table, list one. Also, do not print these datasheets. Simply view
them online and extract the necessary information.
Part Number
DM74LS00
SN74LS02
DM74LS75
SN74LS86
MAN6760
IC Name / Function
Manufacturer
7. When you design a digital logic circuit, you will often need a gate that performs a
specific function. You may be unsure of its part number. Use the Internet to
identify the 74LS series part number for each of the following five gates. Again,
do not print these datasheets. Simply view them online and extract the necessary
information.
Gate Symbol
Gate Name / Function
Binary to Decimal
a) 1100 (2)
=
(10)
b) 11010
=
(10)
(2)
c) 111001 (2)
=
(10)
d) 1010011 (2)
=
(10)
e) 10000101 (2)
=
(10)
74LS Series Part Number
8. Write the Logic Expression for the following
1.
2.
M
N
F1
X
Y
F2
0
0
1
0
0
1
0
1
0
0
1
0
1
0
0
1
0
1
1
1
1
1
1
1
F1 =
F2 =