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MC12026A 1.1 GHz Dual Modulus Prescaler
The MC12026 is a high frequency, low voltage dual modulus prescaler used in phase-locked loop (PLL) applications. The MC12026A can be used with CMOS synthesizers requiring positive edges to trigger internal counters in a PLL to provide tuning signals up to 1.1 GHz in programmable frequency steps. A Divide Ratio Control (SW) permits selection of an 8/9 or 16/17 divide ratio as desired. The Modulus Control (MC) selects the proper divide number after SW has been biased to select the desired divide ratio.
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SO-8 D SUFFIX CASE 751
8 1
* * * * * * *
1.1 GHz Toggle Frequency Supply Voltage 4.5 to 5.5 V Low Power 4.0 mA Typical Operating Temperature Range of -40 to 85C The MC12026 is Pin Compatible with the MC12022 Short Setup Time (tset ) 6.0 ns Typical @ 1.1 GHz Modulus Control Input Level is Compatible with Standard CMOS and TTL
PIN CONNECTIONS
IN VCC SW OUT
1 2 3 4 8 7 6 5
IN NC MC Gnd
(Top View)
ORDERING INFORMATION
Device Package SO-8 SO-8 Shipping 98 Units/Rail 2500 Tape & Reel
FUNCTIONAL TABLE
SW H H L L MC H L H L Divide Ratio 8 9 16 17
MC12026AD MC12026ADR2
DEVICE MARKING INFORMATION
See general marking information in the device marking section on page 6 of this data sheet.
1. SW: H = VCC, L = Open. A logic L can also be applied by grounding this pin, but this is not recommended due to increased power consumption. 2. MC: H = 2.0 V to VCC, L = GND to 0.8 V.
MAXIMUM RATINGS
Characteristics Power Supply Voltage, Pin 2 Operating Temperature Range Storage Temperature Range Modulus Control Input, Pin 6 Maximum Output Current, Pin 4 NOTE: ESD data available upon request. Symbol VCC TA Tstg MC IO Value -0.5 to 7.0 -40 to 85 -65 to 150 -0.5 to 6.5 10.0 Unit Vdc C C Vdc mA
(c) Semiconductor Components Industries, LLC, 2001
1
November, 2001 - Rev. 7
Publication Order Number: MC12026A/D
MC12026A
ELECTRICAL CHARACTERISTICS (VCC = 4.5 to 5.5; TA = -40 to 85C, unless otherwise noted.)
Characteristic Toggle Frequency (Sin Wave) 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 (RL = 560 ; IO = 5.5 mA) (Note 1) (RL = 1.1 k; IO = 2.9 mA) (Note 2) Modulus Setup Time MC to Out (Note 3) Input Voltage Sensitivity 100-250 MHz 250-1100 MHz 1. Divide Ratio of /8/9 at 1.1 GHz, CL = 8.0 pF. 2. Divide Ratio of /16/17 at 1.1 GHz, CL = 8.0 pF. 3. Assuming RL = 560 at 1.1 GHz. Symbol ft ICC VIH1 VIL1 VIH2 VIL2 Vout Min 0.1 - 2.0 GND VCC - 0.5 V OPEN 1.0 Typ 1.4 4.0 - - VCC OPEN 1.6 Max 1.1 5.3 VCC 0.8 VCC + 0.5 V OPEN - Unit GHz mA V V V - Vpp
tSET Vin
- 400 100
6.0 - -
9.0 1000 1000
ns mVpp
D In In MC C
Q QB
D C
Q QB
D
Q
QB CM
1 0 SW D C QB Q D C QB Q Out
Figure 1. Logic Diagram (MC12026A)
Prop. Delay In
Out
MC Setup MC Release Modulus setup time MC to out is the MC setup or MC release plus the prop delay.
MC
Figure 2. Modulus Setup Time http://onsemi.com
2
MC12026A
VCC = 4.5 to 5.5V C3 SINE WAVE GENERATOR C1 50 C2 IN MC GND VCC IN OUT RL CL EXTERNAL COMPONENTS C1 = C2 = 1000 pF C3 = 0.1F CL = 8pF (Including Scope and Jig Capacitance) RL = 560 (for /8/9 at 1.1GHz) SW
MC INPUT
Figure 3. AC Test Circuit
+15.0 +10.0
+1257.40 +707.11 +397.64 +223.61 +125.74 +70.71 mVrms +39.76 +22.36 +12.57 +7.07 +3.98 +2.24 +1.26 0 200 400 600 800 1000 1200 1400 1600 +0.71 1800
0 -5.0 AMPLITUDE (dBm) -10.0 -15.0 -20.0 -25.0 -30.0 -35.0 -40.0 -45.0 -50.0
800 400 0 200 400 600 800 1000 1200 1400 1600 0 1800
FREQUENCY (MHz)
Figure 5. Output Amplitude versus Input Frequency
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mVpp
EEEEEEEEEEEEEEE EEEEEEEEEEEEEEE EEEEEEEEEEEEEEE EEEEEEEEEEEEEEE EEEEEEEEEEEEEEE
OPERATING WINDOW FREQUENCY (MHz)
+5.0
Divide Ratio = 8; VCC = 5.0 V; TA = 25C Figure 4. Input Signal Amplitude versus Input Frequency
2000 1600 1200
MC12026A
5.88V
880mV 36.6ns (/8, 1.1 GHz Input Frequency, VCC = 5.0, TA = 25C, Output Loaded With 8.0pF)
86.6ns
Figure 6. Typical Output Waveform
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MC12026A
200 150 R 100 MHz 50 0 -50 -100 OHMS jX -500 -550 -600 -650 100 -150 -200 -250 -300 -350 -400 -450
200
300
400
500
600
700
800
900
1000
1100
1200
Figure 7. Typical Input Impedance versus Input Frequency
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MC12026A
MARKING DIAGRAMS
SO-8 D SUFFIX CASE 751 8 026A ALYW 1 1 8 026B ALYW
A WL, L YY, Y WW, W
= Assembly Location = Wafer Lot = Year = Work Week
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MC12026A
PACKAGE DIMENSIONS
SO-8 D SUFFIX CASE 751-07 ISSUE W
-X- A
8 5 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSION A AND B DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 (0.006) PER SIDE. 5. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 (0.005) TOTAL IN EXCESS OF THE D DIMENSION AT MAXIMUM MATERIAL CONDITION. DIM A B C D G H J K M N S MILLIMETERS MIN MAX 4.80 5.00 3.80 4.00 1.35 1.75 0.33 0.51 1.27 BSC 0.10 0.25 0.19 0.25 0.40 1.27 0_ 8_ 0.25 0.50 5.80 6.20 INCHES MIN MAX 0.189 0.197 0.150 0.157 0.053 0.069 0.013 0.020 0.050 BSC 0.004 0.010 0.007 0.010 0.016 0.050 0_ 8_ 0.010 0.020 0.228 0.244
B
1 4
S
0.25 (0.010)
M
Y
M
-Y- G C -Z- H D 0.25 (0.010)
M SEATING PLANE
K
N
X 45 _
0.10 (0.004)
M
J
ZY
S
X
S
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MC12026A
ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC 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 special, consequential or incidental damages. "Typical" parameters which may be provided in SCILLC 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. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC 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 SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC 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 SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer.
PUBLICATION ORDERING INFORMATION
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MC12026A/D

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