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| Order this document by MC12028A/D MC12028A 1.1 GHz Dual Modulus Prescaler The MC12028A can be used with CMOS synthesizers requiring positive edges to trigger internal counters such as Motorola's MC145XXX series in a PLL to provide tuning signals up to 1.1 GHz in programmable frequency steps. The MC12028B can be used with CMOS synthesizers requiring negative edges to trigger internal counters. A Divide Ratio Control (SW) permits selection of a 32/33 or 64/65 divide ratio as desired. The Modulus Control (MC) selects the proper divide number after SW has been biased to select the desired divide ratio. NOTE: The "B" Version Is Not Recommended for New Designs MC12028B MECL PLL COMPONENTS /64/65, /128/129 DUAL MODULUS PRESCALER SEMICONDUCTOR TECHNICAL DATA * * * * * 1.1 GHz Toggle Frequency MC12028A for Positive Edge Triggered Synthesizers 6.5 mA Maximum, -40 to 85C, VCC = 5.5 Vdc Modulus Control Input Level Is Compatible With Standard CMOS and TTL Low-Power 4.0 mA Typical 8 1 D SUFFIX PLASTIC PACKAGE CASE 751 (SO-8) FUNCTIONAL TABLE SW H H L L MC H L H L Divide Ratio 32 33 64 65 8 1 NOTES: 1. SW: H = VCC, L = Open. A logic L can also be applied by grouunding this pin, but this is not recommended due to increased power soncumption. 2. MC: H = 2.0 V to VCC, L = GND to 0.8 V. DESIGN GUIDE Criteria Internal Gate Count* Internal Gate Propagation Delay Internal Gate Power Dissipation Speed Power Product NOTE: * Equivalent to a two-input NAND gate P SUFFIX PLASTIC PACKAGE CASE 626 Value 67 200 0.75 0.15 Unit ea ps mW pJ IN VCC SW OUT Unit Vdc C C Vdc Device MC12028AD MC12028AP MC12028BD MC120228BP (c) Motorola, Inc. 1997 1 2 3 4 8 7 6 5 PIN CONNECTIONS MAXIMUM RATINGS Characteristic Power Supply Voltage, Pin 2 Operating Temperature Range Storage Temperature Range Modulus Control Input, Pin 6 NOTE: ESD data available upon request. IN NC MC Gnd Symbol VCC TA Tstg MC Range -0.5 to 7.0 -40 to 85 -65 to 150 -0.5 to 6.5 (Top View) ORDERING INFORMATION Operating Temp Range Package SO-8 TA =-40 to +85C Plastic SO-8 Plastic Rev 3 MC12028A MC12028B ELECTRICAL CHARACTERISTICS (VCC = 4.5 to 5.5V; TA = -40 to 85C, unless otherwise noted.) Characteristic Toggle Frequency (Sine Wave Input) Supply Current Output Unloaded (Pin 2) Modulus Control Input High (MC) Modulus Control Input Low (MC) Divide Ratio Control Input High (SW) Divide Ratio Control Input Low (SW) Output Voltage Swing (CL = 12 pF; RL = 2.2 k) Modulus Setup Time MC to Out Input Voltage Sensitivity 250-1100 MHz 100-250 MHz Output Current (CL = 12 pF; RL = 2.2 k) Symbol ft ICC VIH1 VIL1 VIH2 VIL2 Vout tset Vin IO Min 0.1 - 2.0 - VCC Open 1.0 - 100 400 - Typ 1.4 4.0 - - VCC Open 1.6 11 - - 1.5 16 1500 1500 4.0 Max 1.1 6.5 VCC 0.8 VCC Open Unit GHz mA V V Vdc -- Vpp ns mVpp mA Figure 1. Logic Diagram (MC12028A) Figure 2. Modulus Setup Time D A C Q D B Q D C Q QB Prop. Delay In QB C QB CM In In Out MC MC Setup D D C QB C Q D QB E Q C D F QB C Q D QB G Q D H C SQ QB MC Out MC Release Modulus setup time MC to out is the MC setup or MC release plus the prop delay. SW Figure 3. Typical Output Waveform 500 m 20 ns 2 MOTOROLA RF/IF DEVICE DATA MC12028A MC12028B Figure 4. AC Test Circuit VCC = 4.5 to 5.5 V C3 Sine Wave Generator C1 50 C2 IN MC GND IN OUT RL CL EXTERNAL COMPONENTS C1 = C2 = 1000 pF C3 = 0.1 F CL = 12 pF (Including Scope and jig capacitance) RL = 2.2 k VCC SW MC Input Figure 5. Typical Input Impedance versus Input Frequency 1000 900 800 700 600 R 500 400 300 200 100 OHMS 0 0.1 -100 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 GHz -200 jX -300 -400 -500 -600 MOTOROLA RF/IF DEVICE DATA 3 MC12028A MC12028B Figure 6. Input Signal Amplitude versus Input Frequency 15 10 5 0 Amplitude (dBm) -5 -10 -15 - 20 - 25 - 30 - 35 - 40 - 45 - 50 1250 710 400 225 125 71 40 22.5 12.8 7.1 4 2.25 1.25 0.71 mVrms mVpp 2000 1600 1200 800 400 0 0 200 400 600 800 1000 1200 1400 1600 FREQUENCY (MHz) Divide Ratio = 32 4 MOTOROLA RF/IF DEVICE DATA MC12028A MC12028B OUTLINE DIMENSIONS 8 5 -B- 1 4 P SUFFIX PLASTIC PACKAGE CASE 626-05 ISSUE 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. F NOTE 2 -A- L DIM A B C D F G H J K L M N C -T- SEATING PLANE J N D K M M TA B H G 0.13 (0.005) M M 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 A 8 D 5 D SUFFIX PLASTIC PACKAGE CASE 751-06 (SO-8) ISSUE T C E 1 4 H 0.25 M B M 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. DIM A A1 B C D E e H h L 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_ h B C e A SEATING PLANE X 45 _ q L 0.10 A1 B 0.25 M CB S A S q 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 Customer Focus Center: 1-800-521-6274 MfaxTM: RMFAX0@email.sps.mot.com - 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/ JAPAN: Nippon Motorola Ltd.: SPD, Strategic Planning Office, 141, 4-32-1 Nishi-Gotanda, Shagawa-ku, Tokyo, Japan. 03-5487-8488 MOTOROLA RF/IF DEVICE DATA MC12028A/D 5 |
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