Page 1
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
Page 2
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
Page 3
MC3340
3
MOTOROLA ANALOG IC DEVICE DATA
Figure 3. Attenuation versus
DC Control Voltage
Figure 4. Attenuation versus
Control Resistor
Figure 5. Frequency Response Figure 6. Output Voltage Swing
Figure 7. Total Harmonic Distortion
ATTENUATION (dB)
ATTENUATION (dB)
, VOLTAGE GAIN (dB)
OUTPUT VOLTAGE SWING (Vpp)
THD, TOT AL HARMONIC DISTORTION (%)
V
G
0
20
40
60
80
100
0
20
40
60
80
100
14
10
12
8.0
6.0
4.0
2.0
0
10
8.0
6.0
4.0
2.0
0
4.0
3.0
2.0
1.0
0
1.5 2.5 3.5 4.5 5.5 6.5
V2, CONTROL VOLTAGE (V)
RC, CONTROL RESISTOR (k
Ω
)
4.0 6.0 8.0 10 15 20 30 40
f, FREQUENCY (Hz)
100 1.0 k 10 k 100 k 1.0 M 10 M 100 M
VCC, SUPPLY VOLTAGE (V)
8.0 9.0 10 11 12 13 14 15 16 17 18
010 2030 4050 60 7080
ATTENUATION (dB)
RC, is from Pin 2 to ground
0 dB Reference = 13 dB Gain
f = 1.0 kHz
VCC =
8.0 Vdc
VCC =
12 Vdc
VCC =
16 Vdc
Input voltage (ein) = 10 mV
Pin 6 uncompensated
0 dB Reference = 13 dB Gain
f = 1.0 kHz
eo = 2.5 Vrms
Page 4
MC3340
4
MOTOROLA ANALOG IC DEVICE DATA
OUTLINE DIMENSIONS
14
58
F
NOTE 2
–A–
–B–
–T–
SEATING
PLANE
H
J
G
D
K
N
C
L
M
M
A
M
0.13 (0.005) B
M
T
NOTES:
1. DIMENSION L TO CENTER OF LEAD WHEN
FORMED PARALLEL.
2. PACKAGE CONTOUR OPTIONAL (ROUND OR
SQUARE CORNERS).
3. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
DIM MIN MAX MIN MAX
INCHESMILLIMETERS
A 9.40 10.16 0.370 0.400
B 6.10 6.60 0.240 0.260
C 3.94 4.45 0.155 0.175
D 0.38 0.51 0.015 0.020
F 1.02 1.78 0.040 0.070
G 2.54 BSC 0.100 BSC
H 0.76 1.27 0.030 0.050
J 0.20 0.30 0.008 0.012
K 2.92 3.43 0.115 0.135
L 7.62 BSC 0.300 BSC
M ––– 10 ––– 10
N 0.76 1.01 0.030 0.040
__
P SUFFIX
PLASTIC PACKAGE
CASE 626–05
ISSUE K
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty , representation or guarantee regarding
the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and
specifically disclaims any and all liability, including without limitation consequential or incidental damages. “T ypical” parameters which may be provided in Motorola
data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals”
must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights of
others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other
applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury
or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola
and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees
arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Motorola
was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal
Opportunity/Affirmative Action Employer.
Mfax is a trademark of Motorola, Inc.
How to reach us:
USA/EUROPE/Locations Not Listed: Motorola Literature Distribution; JAPAN: Nippon Motorola Ltd.; SPD, Strategic Planning Office, 141,
P.O. Box 5405, Denver, Colorado 80217. 1–303–675–2140 or 1–800–441–2447 4–32–1 Nishi–Gotanda, Shinagawa–ku, Tokyo, Japan. 81–3–5487–8488
Customer Focus Center: 1–800–521–6274
Mfax: RMFAX0@email.sps.mot.com – TOUCHTONE 1–602–244–6609 ASIA /PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park,
Moto rola Fax Back Sys tem – US & Canada ONLY 1–800–774–1848 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298
– http://sps.motorola.com/mfax/
HOME PAGE: http://motorola.com/sps/
MC3340/D
◊
Loading...