MC12080 1.1 GHz Prescaler The MC12080 is a single modulus divide by 10, 20, 40, 80 prescaler for low power frequency division of a 1.1 GHz high frequency input signal. Divide ratio control inputs SW1, SW2 and SW3 select the required divide ratio of ÷10, ÷20, ÷40, or ÷80. An external load resistor is required to terminate the output. An 820 Ω resistor is recommended to achieve a 1.2 Vpp output swing, when dividing a 1.1 GHz input signal by the minimum divide by ratio of 10, assuming a 8.0 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 1.1 GHz input frequency. Features • • • • http://onsemi.com MARKING DIAGRAM 8 SO–8 D SUFFIX CASE 751 8 1 12080 ALYW 1 1.1 GHz Toggle Frequency Supply Voltage 4.5 to 5.5 V Low Power 3.7 mA Typical at VCC = 5.0 V Operating Temperature Range of –40 to 85°C A L Y W = Assembly Location = Wafer Lot = Year = Work Week FUNCTIONAL TABLE SW1 SW2 SW3 Divide Ratio L L L 80 L L H 40 L H L 40 L H H 20 H L L 40 H L H 20 H H L 20 H H H 10 PIN CONNECTIONS In VCC SW1 Out 1 8 2 7 3 6 4 5 In SW3 SW2 Gnd (Top View) ORDERING INFORMATION Device NOTE: SW1, SW2 and SW3: H = VCC, L = Open. Package Shipping MC12080D SO–8 98 Units/Rail MC12080DR2 SO–8 2500 Tape & Reel MAXIMUM RATINGS Rating Symbol Value Unit VCC –0.5 to 7.0 Vdc Operating Temperature Range TA –40 to 85 °C Storage Temperature Range Tstg –65 to 150 °C IO 10 mA Power Supply Voltage, Pin 2 Maximum Output Current, Pin 4 NOTE: ESD data available upon request. Semiconductor Components Industries, LLC, 2002 February, 2002 – Rev. 5 1 Publication Order Number: MC12080/D MC12080 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) ft 0.1 1.4 1.1 GHz Supply Current Output (Pin 2) ICC – 3.7 5.0 mA Input Voltage Sensitivity 100 to 250 MHz 250 to 1100 MHz Vin 400 100 – – 1000 1000 Divide Ratio Control Input High (SW1, SW2, SW3) VIH VCC – 0.5 V VCC VCC + 0.5 V V Divide Ratio Control Input Low (SW1, SW2, SW3) VIL Open Open Open – Output Voltage Swing (Note 1) Vout 0.8 1.2 – Vpp Characteristic mVpp RL = 820 Ω, IO = 4.0 mA for ÷10 RL = 1.6 kΩ, IO = 2.1 mA for ÷20 RL = 3.3 kΩ, IO = 1.1 mA for ÷40 RL = 6.2 kΩ, IO = 0.57 mA for ÷80 1. Assumes 8.0 pF load and 1.1 GHz input frequency (typical), IO at VCC = 5.0 V and TA = 25°C. In In D Q D Q D C Q C Q C Q Q 1 0 SW1 D Q D Q D Q D Q C Q C Q C Q C Q Out SW3 SW2 Figure 1. Logic Diagram VCC = 4.5 to 5.5 V C3 Sine Wave Generator C1 VCC In SW1 SW2 50 Ω SW3 C2 In Out Gnd CL RL Figure 2. AC Test Circuit http://onsemi.com 2 External Components C1 = C2 = 1000 pF C3 = 0.1 µF CL = 8.0 pF (Including Scope and Jig Capacitance) RL = 820 Ω for ÷10 at 1.1 GHz MC12080 +15.0 +1257.40 ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ +5.0 0 +397.64 +223.61 OPERATING WINDOW -5.0 -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 0 200 400 600 800 1000 1200 1400 +0.71 1800 1600 FREQUENCY (MHz) Divide Ratio = 10; VCC = 5.0 V; TA = 25°C Figure 3. Input Signal Amplitude versus Input Frequency 2000 1600 1200 800 400 0 200 400 600 800 1000 1200 1400 FREQUENCY (MHz) Figure 4. Output Amplitude versus Input Frequency http://onsemi.com 3 1600 0 1800 mVpp AMPLITUDE (dBm) +707.11 mVrms +10.0 MC12080 PACKAGE DIMENSIONS SO–8 D SUFFIX CASE 751–07 ISSUE W –X– 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. A 8 5 0.25 (0.010) S B 1 M Y M 4 K –Y– G C N X 45 SEATING PLANE –Z– 0.10 (0.004) H M D 0.25 (0.010) M Z Y S X J S 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 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. 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