INDEX OF CIRCUIT APPLICATIONS

A

AC signal isolator, 149
Adder:
binary full, 12
half, 43
Alarm clock, 111
Amplifier:
bridge, 94
clipping, 94
difference, 94
high gain, 135
inverting, 93
linear 10X, 14
noninverting, 93
programmable gain, 19, 98
single polarity supply, 93
stereo, 137
summing, 94
unity gain follower, 93
4-watt, 137
8-watt, 136
10X, 101
16-watt bridge, 136
20X, 135
200X, 135
AND gate, 8, 11, 42, 45, 47
AND-OR gate, 11, 42, 45, 46, 51
Analog data link, 149
Analog data transmission system, 129
Audible alarm, 135
Audible light sensor, 96
Audio frequency meter, 129
Audio mixer, 98

B

Bargraph light meter, 96
Bargraph generator, 78
Bass booster, 135
Binary HI-LO game, 56
Buffer, 11, 45
Bus buffer, 80
Bus register, 82, 83
Bus transceiver, 84
Bus transfer:
4-bit, 80, 81
8-bit, 81

C

Calculator output port, 148
CMOS interfacing, 7
CMOS logic clock, 7
CMOS operating requirements, 6
CMOS power source, 6
Coin tosser, 39
Comparator:
inverting, 101
inverting with hysteresis, 102
noninverting, 102
noninverting with hysteresis, 102
three-state output, 102
using operational amplifier, 93
window, 103
1-bit, 12
4-bit, 12
8-bit, 56
Computer output port, 148
Control gate, 8, 42
Converter:
decimal to BCD, 17
digital to analog, 18
parallel to serial data, 36
voltage to frequency, 128
4-bit digital to analog, 95
8-bit analog to digital, 131
8-bit digital to analog, 132
8-bit serial to parallel, 79
Counters:
cascaded BCD, 29, 74
count down from N and recycle, 76
count to N and halt, 30, 34
count to N and recycle, 30
count up to N and halt, 76
count up to N and recycle, 76
decade, 71
decimal, 35, 68
divide by 2, 24, 25, 65, 66
divide by 3, 25, 66
divide by 4, 25, 66
divide by 5, 25, 70, 71
divide by 6, 70
divide by 7, 70, 72
divide by 8, 70
divide by 9, 70, 72
divide by 10, 70, 71, 73
divide by 11, 73
divide by 12, 72, 73
divide by 16, 73
divide by 120, 72
modulo-8, 24, 69
0-99 two digit, 59
1 of 10 decoded, 57
3-digit, 32
4-bit binary, 73
4-bit binary up, 67
6-digit, 33
8-bit, 75
14-bit binary, 28
Current regulator, 86

D

Dark detector, 114
Data bus, bidirectional, 54, 55
Data bus control, 18
Data bus selector, 62
Data latch, 26, 68, 71
Data register, 69
Data selector, 18, 46, 49, 51, 54
Decimal to BCD encoder, 48
Decoder:
BCD, 16, 44, 48
1 of 4, 16, 17
1 of 8, 34
8-bit, 50
Delay line, 36
Demultiplexer:
1 of 2, 53
1 of 8, 37, 60
1 to 16, 61
Differentiator, 94
Dot/bar display driver, 106–107, 109

E

Electronic bell, 96
Enable input, 16
Event failure alarm, 120
Expander, universal, 53

F

Filter:
bandpass, 100
low pass active, 95
high pass active, 95
60 Hz notch, 95
Flip-flop:
D, 43
toggle, 101
Frequency counter, 32
Frequency detector, 125
Frequency divider, 31, 115
Frequency meter, 120
Frequency synthesizer, 123
FSK data transmitter, 128
FSK generator, 130
Function generator:
programmable, 19
variable, 130
1 kHz three output, 97
1.2 kHz pulse/ramp, 101

G

Gated threshold detector, 52

I

Infrared remote control, 124
Infrared transmitter, 100, 104
Infrared voice communicator, 99, 121
Integrator, 94
Interfacing:
calculator to computer, 147
CMOS to CMOS at different voltages, 7
CMOS to CMOS at lower Vdd, 15
CMOS to TTL/LS at lower Vcc, 15
CMOS to TTL/LS at equal Vdd, 7
TTL/LS to CMOS at equal Vdd, 7
Inverter, 8, 12

K

Keyboard encoder:
BCD, 29, 31
octal, 63

L

Lamp flasher, 104
Latch:
gated RS, 43, 48
RS, 43, 47
with enable input, 51
LED bargraph readout, 103
LED drivers:
CMOS, 7
TTL, 41
LED flasher, 9, 10, 43, 52, 55, 61, 104, 110, 113
Level detector, 93
Light detector, 114
Light probe for the blind, 120
Light wave receiver, 95
Logic probe, 15

M

Missing pulse detector, 64, 113
Multiplexer 1 of, 8, 37
Multivibrator:
a stable, 101
monostable, 27, 47, 64, 112, 118
monostable with tone, 115

N

NAND gate, 8, 11, 17, 42, 44, 45, 46, 50
NiCad charger, 88
Noise source:
pink, 39
white, 39
NOR gate, 8, 11, 42, 45, 46, 47

O

Octave synthesizer, 146
Optical power meter, 96
OR gate, 8, 10, 17, 42, 47, 49
Oscillator:
audio, 53
“chirper”, 105
gated, 52
light controlled, 104
phase shift, 14
square wave, 103
sun powered, 105
two frequency, 125
two phase, 125
tunable, 122
variable square wave, 119
“whooper”, 105
10 MHz, 13
Oscilloscope, solid state, 108
Output drive, increasing, 9, 10, 15
Output expander, 15

P

Pattern generator, 63
Peak detector, 97, 98
Percussion synthesizer, 138
Phase detector, 12, 65
Phototransistor receiver, 52
Power pulse generator, 92
Power supply:
adjustable negative, 87
programmable, 88
1.5–5 V, 91
5 V line powered, 86
Preamplifier:
low-Z, 99
microphone, 99
Programmable gate, 63
Programmable light meter, 103
Pseudorandom voltage generator, 79
Public address system, 137
Pulse delayer, 27
Pulse generator, 14, 97, 100, 113, 119
Pulse source, 72
Pulse width modulator, 131

R

Ramp synthesizer, 75
Random number generator, 30
Register, 82, 83
Rhythm pattern generator, 142–143

S

Sample and hold, 98
SCR driver, 149
Sequencer:
chirp burst, 122
generator, 78
programmable, 118
pseudorandom, 36
tone, 37
1 of 4, 24
2 to 8 step, 69
10 note tone, 57
Shift register:
serial in/out, parallel out, 24, 69
4-bit serial, 25, 67
Siren, 122
Sound generator:
“bomb drop”, 140
flanger, 145
snare/brush, 39
“steam engine”, 141
“ultimate siren”, 141
variable, 117, 123, 139
Square wave generator, 13, 14
Staircase generator, 28, 133
Static RAMS, 20–23
Stepped tone generator, 27, 64
Stepped wave generator, 26
Storage register, 65
Switch:
bounceless, 10, 53, 55, 112
debouncer, 43
touch, 9, 114

T

Temperature sensor, 134
Timebase:
1 Hz, 38
10 Hz, 38
60 Hz, 38
Timer:
digital, 38
interval, 116
long duration, 119
programmable count down, 74
simple, 91
two-stage, 117
ultra-long delay, 114
with relay, 112
0–9 second, 34
0–9 second/minute, 58
Tone burst generator, 123
Tone detector, 124
Tone sources, 10, 55, 116, 130, 133, 139
Touch-Tone decoder, 126
Touch-Tone generator, 127
Toy organ, 113
Triangle wave generator, 14, 115
Troubleshooting:
CMOS circuits, 7
TTL/LS circuits, 41
TTL interfacing, 41
TTL operating requirements, 41
TTL power source, 41

U

Unanimous vote detector, 44, 50

V

Voltage detector, 91
Voltage regulator:
adjustable, 91
adjustable negative, 89
precision LED, 89
1.2–20 V, 92
1.25–25 V, 88
2–7 V, 90
5/12/15 V, 86
-5 V, 87
7–37 V, 90
VU bar graph display, 110

W

Wave shaper, 65

X

XNOR gate, 13, 42
XOR gate, 8, 13, 42
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