Order this document by MC3340/D 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 • ELECTRONIC ATTENUATOR SEMICONDUCTOR TECHNICAL DATA Economical 8–Pin Dual–In–Line Package 8 1 P SUFFIX PLASTIC PACKAGE CASE 626 MAXIMUM RATINGS (TA = 25°C, unless otherwise noted.) Symbol Value Unit VCC 20 Vdc Power Dissipation @ TA = 25°C Derate above TA = 25°C PD 1.2 10 W mW/°C Device Operating Temperature Range Package Operating Ambient Temperature Range TA 0 to 75 °C MC3340P TA = 0 to 75°C Plastic DIP Rating Power Supply Voltage NOTE: ORDERING INFORMATION ESD data available upon request. Figure 1. Typical DC Remote Volume Control VCC 8 1.0 µF 1 7 MC3340 2 3 6 eo + 50 µF 620 pF Remotely Located Potentiometer 50k RC Motorola, Inc. 1998 MOTOROLA ANALOG IC DEVICE DATA Rev 6 1 MC3340 ELECTRICAL CHARACTERISTICS (ein = 100 mVrms, f = 1.0 kHz, VCC = 16 Vdc, TA = +25°C, unless otherwise noted.) Characteristics Min Typ Max Unit 9.0 – 18 Vdc Control Terminal Sink Current, Pin 2 (ein = 0) – – 2.0 mAdc Maximum Input Voltage – – 0.5 Vrms 6 Voltage Gain 11 13 – dB Attenuation Range from Maximum Gain (V2 = 6.5 Vdc) 70 80 – dB 620 pF Total Harmonic Distortion (Pin 2 Gnd) (ein = 100 mVrms, eo = Av • ein) – 0.6 1.0 % Circuit ein 1 1.0 µF + F 50 µF Operating Power Supply Voltage VCC 8 7 2 eo + V2 – 3 Figure 2. Representative Schematic Diagram 8 5.1 k 6.2 k 5.1 k 5.1k 6 200 750 4.7 k 7 750 VCC Roll–off Output 5.1 k 3.9 k 10k 2 Control 3 5.1 k 5.1 k Input 1 20 k 510 2 1.3 k 1.5 k 510 MOTOROLA ANALOG IC DEVICE DATA MC3340 Figure 3. Attenuation versus DC Control Voltage Figure 4. Attenuation versus Control Resistor 0 0 ATTENUATION (dB) VCC = 12 Vdc 20 VCC = 16 Vdc ATTENUATION (dB) VCC = 8.0 Vdc 20 40 60 80 40 60 0 dB Reference = 13 dB Gain f = 1.0 kHz 80 100 1.5 2.5 3.5 4.5 V2, CONTROL VOLTAGE (V) 5.5 RC, is from Pin 2 to ground 100 4.0 6.5 6.0 Figure 5. Frequency Response OUTPUT VOLTAGE SWING (Vpp) VG , VOLTAGE GAIN (dB) 40 Figure 6. Output Voltage Swing 12 10 Input voltage (ein) = 10 mV Pin 6 uncompensated 6.0 4.0 2.0 0 100 30 10 14 8.0 8.0 10 15 20 RC, CONTROL RESISTOR (kΩ) 1.0 k 10 k 100 k 1.0 M f, FREQUENCY (Hz) 10 M 100 M 8.0 6.0 4.0 2.0 0 8.0 9.0 10 11 12 13 14 15 16 17 18 VCC, SUPPLY VOLTAGE (V) THD, TOTAL HARMONIC DISTORTION (%) Figure 7. Total Harmonic Distortion 4.0 3.0 2.0 0 dB Reference = 13 dB Gain f = 1.0 kHz eo = 2.5 Vrms 1.0 0 0 MOTOROLA ANALOG IC DEVICE DATA 10 20 30 40 50 ATTENUATION (dB) 60 70 80 3 MC3340 OUTLINE DIMENSIONS 8 P SUFFIX PLASTIC PACKAGE CASE 626–05 ISSUE K 5 –B– 1 4 F –A– NOTE 2 L C J –T– N SEATING PLANE D H M K 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 A B C D F G H J K L M N MILLIMETERS MIN MAX 9.40 10.16 6.10 6.60 3.94 4.45 0.38 0.51 1.02 1.78 2.54 BSC 0.76 1.27 0.20 0.30 2.92 3.43 7.62 BSC ––– 10_ 0.76 1.01 INCHES MIN MAX 0.370 0.400 0.240 0.260 0.155 0.175 0.015 0.020 0.040 0.070 0.100 BSC 0.030 0.050 0.008 0.012 0.115 0.135 0.300 BSC ––– 10_ 0.030 0.040 G 0.13 (0.005) M T A M B M 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. “Typical” 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; P.O. Box 5405, Denver, Colorado 80217. 1–303–675–2140 or 1–800–441–2447 JAPAN: Nippon Motorola Ltd.; SPD, Strategic Planning Office, 141, 4–32–1 Nishi–Gotanda, Shinagawa–ku, Tokyo, Japan. 81–3–5487–8488 Customer Focus Center: 1–800–521–6274 Mfax: [email protected] – TOUCHTONE 1–602–244–6609 ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, Motorola Fax Back System – 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/ 4 ◊ MC3340/D MOTOROLA ANALOG IC DEVICE DATA