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MC12026AD bảng dữ liệu(PDF) 1 Page - Motorola, Inc |
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MC12026AD bảng dữ liệu(HTML) 1 Page - Motorola, Inc |
1 / 6 page MOTOROLA SEMICONDUCTOR TECHNICAL DATA 1 REV 3 © Motorola, Inc. 1997 1/97 1.1GHz 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 such as Motorola’s MC145xxx series in a PLL to provide tuning signals up to 1.1GHz in programmable frequency steps. The MC12026B can be used with CMOS synthesizers requiring negative edges to trigger internal counters. 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. NOTE: The “B” Version Is Not Recommended for New Designs • 1.1GHz Toggle Frequency • Supply Voltage 4.5V to 5.5V • Low Power 4.0mA Typical • Operating Temperature Range of –40°C to +85°C • The MC12026 is Pin Compatible With the MC12022 • Short Setup Time (tset ) 6ns Typical @ 1.1GHz • Modulus Control Input Level is Compatible With Standard CMOS and TTL Pinout: 8–Lead Plastic (Top View) 8 1 IN IN 7 2 NC VCC 6 3 MC SW 5 4 GND OUT MAXIMUM RATINGS Symbol Characteristic Range Unit VCC Power Supply Voltage, Pin 2 –0.5 to +7.0 Vdc TA Operating Temperature Range –40 to +85 °C Tstg Storage Temperature Range –65 to +150 °C MC Modulus Control Input, Pin 6 –0.5 to +6.5 Vdc IO Maximum Output Current, Pin 4 10.0 mA MC12026A MC12026B MECL PLL COMPONENTS ÷8/9, ÷16/17 DUAL MODULUS PRESCALER FUNCTION TABLE SW MC Divide Ratio H H L L H L H L 8 9 16 17 Note: SW: H = VCC, L = OPEN MC: H = 2.0V to VCC; L = GND to 0.8V P SUFFIX 8–LEAD PLASTIC PACKAGE CASE 626–05 D SUFFIX 8–LEAD PLASTIC SOIC PACKAGE CASE 751–05 |
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