ML12019 Dual Modulus Prescaler MECL PLL COMPONENTS ÷20/21 DUAL MODULUS SEMICONDUCTOR TECHNICAL DATA Legacy Device: Motorola MC12019 The ML12019 is a divide by 20 and 21 dual modulus prescaler. It will devide by 20 when the modulus control input is HIGH and divide by 21 when the modulus control input is LOW. P DIP 8 = PP PLASTIC PACKAGE CASE 626-04 • 225 MHz Toggle Frequency • Low–Power 7.5 mA Maximum at 5.5 V SO 8 = -5P PLASTIC PACKAGE CASE 751 (SO–8) 8 • Control Input is Compatible with Standard Motorola or Lansdale CMOS Synthesizers 1 CROSS REFERENCE/ORDERING INFORMATION LANSDALE PACKAGE MOTOROLA P-DIP 8 SO 8 • Emitter Follower Output • Operating Temperature Range TA = –40 to 85°C MC12019P MC12019D ML12019PP ML12019-5P Note: Lansdale lead free (Pb) product, as it becomes available, will be identified by a part number prefix change from ML to MLE. PIN CONNECTIONS SIMPLIFIED BLOCK DIAGRAM IN NE Out Gnd Control Input 1 8 2 7 3 6 4 5 NC V CC S Gnd S IN (Top View) 1 Signal Input Signal Gnd 0.001 µF 5 6 3 N / N+1 Output 0.001 µF 7 V 0.1 µF CC 4 10 k Gnd Page 1 of 4 www.lansdale.com Issue B LANSDALE Semiconductor, Inc. ML12019 MAXIMUM RATINGS Rating Power Supply Voltage, Pin 7 Operating Temperature Range Storage Temperature Range Symbol Value Unit VCC 8.0 Vdc TA –40 to +85 °C Tstg –65 to +175 °C ELECTRICAL CHARACTERISTICS (VCC = 4.5 to 5.5 V; TA = –40 to 85°C), unless otherwise noted.) Characteristic Symbol Min Typ Max Unit Toggle Frequency (Sine Wave Input) fmax fmin 225 – – – – 20 MHz Supply Current ICC – – 7.5 mA Control Input HIGH ( ÷20) VIH 2.0 – – V Control Input LOW ( ÷21) VIL – – 0.8 V Output Swing Voltage (10 kΩ to ground) Vout 600 – 1200 Input Voltage Sensitivity 20 MHz to 225 MHz Vin PLL Response Time (Notes 1 and 2) tPLL 200 – 800 – – tout–70 mVpp mVPP ns NOTES: 1. tPLL = the period of time the PLL has from the prescaler rising output tranistion (50%) to the modulus control input edge transition (50%) to ensure proper modulus selection. 2. tout = period of output waveform. Page 2 of 4 www.lansdale.com Issue B LANSDALE Semiconductor, Inc. ML12019 Figure 1. Generic block diagram showing prescaler connection to PLL device Prescaler PLL Fout ML12019 Fin ML145146 ML145158 ML145159 MC in MC VCO Loop Filter Figure 1 shows a generic block diagram for connecting a prescaler to a PLL device that supports dual modulus control. Application note AN535 decribes using a twomodulus prescaler technique.By using prescaler higher frequencies can be achieve than by a single CMOS PLL device. Page 3 of 4 www.lansdale.com Issue B LANSDALE Semiconductor, Inc. ML12019 P DIP 8 = PP PLASTIC PACKAGE (ML12019PP) CASE 626-04 Lansdale Semiconductor reserves the right to make changes without further notice to any products herein to improve reliability, function or design. Lansdale does not assume any liability arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights nor the rights of others. “Typical” parameters which may be provided in Lansdale data sheets and/or specifications can vary in different applications, and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by the customer’s technical experts. Lansdale Semiconductor is a registered trademark of Lansdale Semiconductor, Inc. Page 4 of 4 www.lansdale.com Issue B