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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
1.3GHz Prescaler
The MC12078 is a divide by 256 prescaler. Typical frequency synthesis applications include elctronically tuned TV/CATV and communication systems as well as instrumentation. An internal preamplifier is included which isolates the differential inputs and provides gain for the input signal. Differential PECL outputs are provided.
MC12078
MECL PLL COMPONENTS /256 PRESCALER
* * * * * * *
1.3GHz Toggle Frequency Operating Supply Voltage of 4.5 to 5.5V Low-Power 28mA Typical at VCC = 5.0V Operating Temperature Range of 0C to +85C High Input Sensitivity 800mV Minimum Peak-to-Peak Output Swing Differential PECL Outputs
DESIGN GUIDE
Criteria Internal Gate Count* Internal Gate Propagation Delay Internal Gate Power Dissipation Speed Power Product * Equivalent to a two-input NAND gate Value 62 250 10 2.5 Unit ea ps mW pJ D SUFFIX 8-LEAD PLASTIC SOIC PACKAGE CASE 751-05 P SUFFIX 8-LEAD PLASTIC PACKAGE CASE 626-05
MAXIMUM RATINGS
Symbol VCC TA Tstg Characteristic Power Supply Voltage Operating Temperature Range Storage Temperature Range Range 7.0 0 to +85 -65 to +175 Unit Vdc C C
Pinout: 8-Lead Plastic (Top View)
VCC 8 7 Output 6 NC 5
ELECTRICAL CHARACTERISTICS (VCC = 4.5 to 5.5V; TA = 0 to +85C)
Symbol fmax1 fmin ICC Vout Vin min Characteristic Toggle Frequency (Sine Wave Input) Supply Current at 5.5V Output Voltage (Load =10pF) Input Voltage 90MHz Sensitivity 150-1100MHz 1.3GHz Input 90-500MHz Overload 500-1300MHz 400 400 0.8 Min 1.3 Typ* 1.6 90 28 1.2 10 4.0 7.0 20 10 20 35 Max Unit GHz MHz mA VPP mVrms
1 NC
2 Input
3
4 GND
Vin max
mVrms
* Typical measured at +25C, 5.0V 1. See Figure 1
7/93
(c) Motorola, Inc. 1996
1
REV 1
MC12078
PRESCALER BLOCK DIAGRAM
VCC
8
625
625
Output 7 6
/256
2 0.001F
3 0.001F 4 GND
Signal Input
15 10 5 0 -5 -10 INPUT -15 - 20 - 25 AMPLITUDE (dBm) - 30 - 35 - 40 - 45 - 50 SPECIFICATION ROLL OFF OF H.P. GENERATOR
1250 710 400 225 125 71 22.5 12.8 4 2.25 1.25 0.71 2000 1600 MILLIVOLTS PP HIPERCOMM BR1334 -- Rev 4 7.1 RMS 40
OUTPUT
1200 800 400 0 0 200 400 600 800 1000 1200 1400 FREQUENCY (MHz)
Figure 1. MC12078 Input Signal Amplitude versus Input Frequency
MOTOROLA
2
MC12078
OUTLINE DIMENSIONS
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.
8
5
-B-
1 4
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
H
G 0.13 (0.005) TA
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
B
M
A
8
D
5
D SUFFIX PLASTIC SOIC PACKAGE CASE 751-05 ISSUE R
C H 0.25
M
E
1 4
B
M
NOTES: 1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994. 2. DIMENSIONS ARE IN MILLIMETERS. 3. DIMENSION D AND E DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE. 5. DIMENSION B DOES NOT INCLUDE MOLD 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 0.18 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_
B C
e h A
SEATING PLANE X 45 _
q
0.10 A1 0.25 B
M
L 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. How to reach us: USA / EUROPE / Locations Not Listed: Motorola Literature Distribution; P.O. Box 5405; Denver, Colorado 80217. 303-675-2140 or 1-800-441-2447 MfaxTM: RMFAX0@email.sps.mot.com - TOUCHTONE 602-244-6609 INTERNET: http://Design-NET.com
JAPAN: Nippon Motorola Ltd.; Tatsumi-SPD-JLDC, 6F Seibu-Butsuryu-Center, 3-14-2 Tatsumi Koto-Ku, Tokyo 135, Japan. 81-3-3521-8315 ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852-26629298
HIPERCOMM BR1334 -- Rev 4 3
MC12078/D MOTOROLA

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