Order this document by MC12079/D The MC12079 is a single modulus divide by 64, 128, 256 prescaler for low power frequency division of a 2.8 GHz (typical) high frequency input signal. Divide ratio control inputs SW1 and SW2 select the required divide ratio of ÷64, ÷128, or ÷256. An external load resistor is required to terminate the output. A 1.2 kΩ resistor is recommended to achieve a 1.6 Vpp output swing, when dividing a 1.1 GHz input signal by the minimum divide ratio of 64, assuming a 12 pF load. Output current can be minimized dependent on conditions such as output frequency, capacitive load being driven, and output voltage swing required. Typical values for load resistors are included in the Vout specification for various divide ratios at 2.8 GHz input frequency. • 2.8 GHz Toggle Frequency • • • MECL PLL COMPONENTS ÷64/128/256 PRESCALER SEMICONDUCTOR TECHNICAL DATA Supply Voltage 4.5 to 5.5 V Low Power 9mA Typical at VCC = 5.0 V 8 Operating Temperature Range of –40 to 85°C 1 D SUFFIX PLASTIC PACKAGE CASE 751 (SO–8) FUNCTIONAL TABLE SW1 SW2 H H 64 H L 128 L H 128 L L 256 NOTE: Divide Ratio SW1 & SW2: H = VCC, L = Open. 8 1 MAXIMUM RATINGS Characteristic Power Supply Voltage, Pin 2 Operating Temperature Range Storage Temperature Range Maximum Output Current, Pin 4 NOTE: Symbol Range Unit VCC –0.5 to 7.0 Vdc TA –40 to 85 °C Tstg –65 to 150 °C IO 4.0 mA P SUFFIX PLASTIC PACKAGE CASE 626 PIN CONNECTIONS ESD data available upon request. IN VCC SW1 OUT 1 8 2 7 3 6 4 5 IN NC SW2 Gnd (Top View) ORDERING INFORMATION Device MC12079D MC12079P Operating Temperature Range TA = – 40° to +85°C Motorola, Inc. 1997 Package SO–8 Plastic Rev 3 MC12079 ELECTRICAL CHARACTERISTICS (VCC = 4.5 to 5.5 V; TA = –40 to 85°C, unless otherwise noted.) Symbol Min Typ Max Unit Toggle Frequency (Sine Wave) Parameter ft 0.25 3.4 2.8 GHz Supply Current Output (Pin 2) ICC – 9.0 11.5 mA Vin 400 100 – – 1000 1000 mVpp Divide Ratio Control Input High (SW) VIH VCC VCC VCC V Divide Ratio Control Input Low (SW) VIL Open Open Open – Output Voltage Swing Vout 1.0 1.6 – Vpp Input Voltage Sensitivity 250–500 MHz 500–2800 MHz (CL = 12 pF; RL = 1.2 kΩ; IO = 2.7 mA)1 (CL = 12 pF; RL = 2.2 kΩ; IO = 1.5 mA)2 (CL = 12 pF; RL = 3.9 kΩ; IO = 0.85 mA)3 NOTES: 1. Divide ratio of ÷64 at 2.8 GHz. 2. Divide ratio of ÷128 at 2.8 GHz. 3. Divide ratio of ÷256 at 2.8 GHz. Figure 1. Logic Diagram (MC12079) In In D QB D Q D QB C Q C QB C Q D QB D QB D QB C Q C Q C Q D Q D QB C QB C Q Out SW2 SW1 Figure 2. AC Test Circuit VCC = 4.5 to 5.5 V C3 SINE WAVE GENERATOR C1 VCC IN SW1 50 Ω SW2 C2 IN OUT GND 2 CL RL EXTERNAL COMPONENTS C1 = C2 = 1000 pF C3 = 0.1 µF CL = 12 pF (Including Scope and Jig Capacitance) RL = 1.2 kΩ (for ÷64 at 2.8 GHz) MOTOROLA RF/IF DEVICE DATA MC12079 Figure 3. Input Signal Amplitude versus Input Frequency +15.0 +1257.40 +10.0 +707.11 ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ 0 +223.61 OPERATING WINDOW –5.0 AMPLITUDE (dBm) +397.64 –10.0 –15.0 –20.0 +125.74 +70.71 +39.76 +22.36 –25.0 +12.57 –30.0 +7.07 –35.0 +3.98 –40.0 +2.24 –45.0 +1.26 –50.0 0 400 800 1200 1600 2000 2400 2800 3200 mVrms +5.0 +0.71 3600 FREQUENCY (MHz) Divide Ratio = 64; VCC = 5.0 V; TA = 25°C Figure 4. Output Amplitude versus Input Frequency 2000 1200 800 mVpp 1600 400 0 400 800 1200 1600 2000 2400 2800 3200 0 3600 FREQUENCY (MHz) MOTOROLA RF/IF DEVICE DATA 3 MC12079 OUTLINE DIMENSIONS 8 P SUFFIX PLASTIC PACKAGE CASE 626–05 ISSUE K 5 –B– 1 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. 4 F –A– NOTE 2 L DIM A B C D F G H J K L M N C J –T– N SEATING PLANE D M K G H 0.13 (0.005) T A M B M 8 NOTES: 1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994. 2. DIMENSIONS ARE IN MILLIMETER. 3. DIMENSION D AND E DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE. 5. DIMENSION B DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 TOTAL IN EXCESS OF THE B DIMENSION AT MAXIMUM MATERIAL CONDITION. C 5 0.25 H E M B M 1 4 h B X 45 _ e q A C SEATING PLANE L 0.10 A1 B 0.25 C B M S A 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 M D SUFFIX PLASTIC PACKAGE CASE 751–06 (SO–8) ISSUE T D A 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 S DIM A A1 B C D E e H h L q MILLIMETERS MIN MAX 1.35 1.75 0.10 0.25 0.35 0.49 0.19 0.25 4.80 5.00 3.80 4.00 1.27 BSC 5.80 6.20 0.25 0.50 0.40 1.25 0_ 7_ 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, Shagawa–ku, Tokyo, Japan. 03–5487–8488 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 ◊ MC12079/D MOTOROLA RF/IF DEVICE DATA