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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
1.1GHz Prescaler With Stand-By Mode
The MC12083 is a /2 prescaler for low power frequency division of a 1.1GHz high frequency input signal. On-chip output termination provides output current to drive a 2pF (typical) high impedance load. If additional drive is required for the prescaler output, an external resistor can be added parallel from the OUT Pin to GND to increase the output power. Care must be taken not to exceed the maximum allowable current through the output. Stand-By mode is featured to reduce current drain to 250A typical when the stand-by pin SB is switched LOW disabling the prescaler.
MC12083
MECL PLL COMPONENTS /2 PRESCALER WITH STAND-BY MODE
* * * * *
1.1GHz Toggle Frequency Supply Voltage 2.7V to 5.5V Low Power 4.5mA Typical at VCC = 2.7V Operating Temperature -40 to +85C On-Chip Termination
P SUFFIX 8-LEAD PLASTIC PACKAGE CASE 626-05
Pinout: 8-Lead Plastic (Top View)
IN 8 SB 7 NC 6 GND 5 D SUFFIX 8-LEAD PLASTIC SOIC PACKAGE CASE 751-05
1
2
3
4
IN VCC NC OUT A LOW on the Stand-By Pin 7 disables the device.
MAXIMUM RATINGS Symbol
VCC TA Tstg IO
Parameter
Power Supply Voltage, Pin 2 Operating Temperature Range Storage Temperature Range Maximum Output Current, Pin 4
Value
-0.5 to +7.0 -40 to +85 -65 to +150 10.0
Unit
VDC C C mA
1/97
(c) Motorola, Inc. 1997
1
REV 2
MC12083
ELECTRICAL CHARACTERISTICS (VCC = 2.7 to 5.5V; TA = -40 to +85C)
Symbol ft ICC ISB VIH VIL VOUT Parameter Toggle Frequency (Sine Wave) Supply Current Output (Pin 2) Standby Current Standby Input HIGH (SB) Standby Input LOW (SB) Output Voltage Swing (Note 1.) 2pF Load @ 500MHz Input 2pF Load @ 750MHz Input 2pF Load @ 1100MHz Input 100-250MHz 250-400MHz 400-1100MHz VCC = 3.0V VCC = 5.5V VCC = 3.0V VCC = 5.5V 2.0 GND 700 600 400 400 200 100 800 700 450 1000 1000 1000 Min 0.1 Typ 1.4 4.4 4.8 250 500 Max 1.1 6.5 6.5 350 600 VCC 0.8 Unit GHz mA A V V mVPP
VIN
Input Voltage Sensitivity
mVPP
1. Assume 2pF load, VCC = 2.7V, VIN =minimum specification for each frequency band, TA = 85C
VCC = 2.7 to 5.5V C3 Sine Wave Generator C1 50 C2 IN GND IN VCC SB OUT 2pF EXTERNAL COMPONENTS C1 = C2 = 1000pF C3 = 0.1F
Figure 1. AC Test Circuit
MOTOROLA
2
HIPERCOMM BR1334 -- Rev 4
MC12083
+15.0 +10.0 +1257.40 +707.11 +397.64 +223.61 +125.74 MILLIVOLTS (rms) +70.71 +39.76 +22.36 +12.57 +7.07 +3.98 +2.24 +1.26 0 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 +0.71 1500
0 -5.0 AMPLITUDE (dBm) -10.0 -15.0 -20.0 -25.0 -30.0 -35.0 -40.0 -45.0 -50.0
1400 1300 1200 1100 OUTPUT VOLTAGE P-P, (mV) 1000 900 800 700 600 500 400 2.7V P-P -40 5.0V P-P -40 2.7V P-P +25 5.0V P-P +25 2.7V P-P +85 5.0V P-P +85
300 100
HIPERCOMM BR1334 -- Rev 4
EEEEEEEEEEEEEEEEEEEEE EEEEEEEEEEEEEEEEEEEEE EEEEEEEEEEEEEEEEEEEEE EEEEEEEEEEEEEEEEEEEEE EEEEEEEEEEEEEEEEEEEEE EEEEEEEEEEEEEEEEEEEEE EEEEEEEEEEEEEEEEEEEEE EEEEEEEEEEEEEEEEEEEEE
EEEEEEEEEEEEEEEEEEE EEEEEEEEEEEEEEEEEEE EEEEEEEEEEEEEEEEEEE EEEEEEEEEEEEEEEEEEE EEEEEEEEEEEEEEEEEEE EEEEEEEEEEEEEEEEEEE
OPERATING WINDOW FREQUENCY (MHz)
+5.0
Figure 2. Input Signal Amplitude versus Input Frequency Divide Ratio = 2; VCC = 2.7V; TA = 25C; Output Loaded With 2pF
VOUT WINDOW
200
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
INPUT FREQUENCY, (MHz)
Figure 3. 12083 Output Peak-to-Peak at 2pF Load
3
MOTOROLA
MC12083
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
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MOTOROLA 4
MC12083/D HIPERCOMM BR1334 -- Rev 4

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