Motorola MC3340P Datasheet
Device
Operating
Temperature Range
Package
SEMICONDUCTOR
TECHNICAL DATA
ELECTRONIC ATTENUATOR
ORDERING INFORMATION
MC3340P TA = 0 to 75°C Plastic DIP
Order this document by MC3340/D
P SUFFIX
PLASTIC PACKAGE
CASE 626
8
1
Figure 1. Typical DC Remote Volume Control
MC3340
8
V
CC
e
o
+
620 pF
236
50
µ
F
1.0
µ
F
17
50k
R
C
Remotely
Located
Potentiometer
1
MOTOROLA ANALOG IC DEVICE DATA
The MC3340 is a simple but very effective electronic attenuator. This
device offers up to 80 dB of attenuation control for frequencies to 1.0 MHz.
THD (distortion) is less than 1% – up to 15 dB attenuation and less than 3% –
up to 40 dB.
Typical uses include instrumentation control, remote control audio
amplifiers, electronic games, and CATV (cable TV) set–top converter audio
control.
• Designed for use in:
DC Operated Volume Control
Compression and Expansion Amplifier Applications
• Controlled by DC Voltage or External Variable Resistor
• Economical 8–Pin Dual–In–Line Package
MAXIMUM RATINGS
(TA = 25°C, unless otherwise noted.)
Rating
Symbol Value Unit
Power Supply Voltage V
CC
20 Vdc
Power Dissipation @ TA = 25°C
Derate above TA = 25°C
P
D
1.2
10
W
mW/°C
Operating Ambient Temperature Range T
A
0 to 75 °C
NOTE: ESD data available upon request.
Motorola, Inc. 1998 Rev 6
MC3340
2
MOTOROLA ANALOG IC DEVICE DATA
ELECTRICAL CHARACTERISTICS
(ein = 100 mVrms, f = 1.0 kHz, VCC = 16 Vdc, TA = +25°C, unless otherwise noted.)
Circuit
Characteristics Min Typ Max Unit
V
Operating Power Supply Voltage 9.0 – 18 Vdc
1
7
8
V
CC
e
in
Control Terminal Sink Current, Pin 2
(ein = 0)
– – 2.0 mAdc
2
1.0 µ
F
Maximum Input Voltage – – 0.5 Vrms
36
e
o
+
V2
+
Voltage Gain 11 13 – dB
620 pF
–
50
µ
F
Attenuation Range from Maximum Gain
(V2 = 6.5 Vdc)
70 80 – dB
Total Harmonic Distortion (Pin 2 Gnd)
(ein = 100 mVrms, eo = Av • e
in)
– 0.6 1.0 %
5101.5 k1.3 k510
20 k
4.7 k
5.1 k 5.1 k
6.2 k 5.1k
8
Roll–off
Output
7
6
V
CC
750
3.9 k
10k
750
5.1 k
5.1 k
Input
1
3
2
Control
200
5.1 k
Figure 2. Representative Schematic Diagram
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