ML12034

ML12034 2.0 GHz Dual Modulus Prescaler MECL PLL COMPONENTS ÷32/33, ÷64/65 DUAL MODULUS PRESCALER SEMICONDUCTOR TECHNICAL DATA Legacy Device: Motorola MC12034A The ML12034 can be used with CMOS synthesizers requiring positive edges to trigger internal counters such as Motorola’s MC145xxx series or Lansdale’s ML145xxx series in a PLL to provide tuning signals up to 2.0 GHz in programmable frequency steps. A Divide Ratio Control (SW) permits selection of a 32/33 or 64/65 divide ratio as desired. The Modulus Control (MC) selects the proper divide number after SW has been biased to select the desired divide ratio. • • • • • 2.0 GHz Toggle Frequency Supply Voltage 4.5 to 5.5 V ML12034 for Positive Edge Triggered Synthesizers 12mA Maximum, –40 to 85°C, VCC = 5.5 Vdc Modulus Control Input is Compatible with Standard CMOS and TTL • Low–Supply Current 8.5 mA Typical • Operating Temperature Range TA = –40 to 85°C Note: Lansdale lead free (Pb) product, as it becomes available, will be identified by a part number prefix change from ML to MLE. Page 1 of 5 www.lansdale.com Issue A ML12034 LANSDALE Semiconductor, Inc. Page 2 of 5 www.lansdale.com Issue A ML12034 LANSDALE Semiconductor, Inc. Page 3 of 5 www.lansdale.com Issue A ML12034 LANSDALE Semiconductor, Inc. Figure 7. Generic block diagram showing prescaler connection to PLL device Prescaler Fout Fin PLL ML145146 ML145158 ML145159 ML12034 MC in MC VCO Loop Filter Figure 7 shows a generic block diagram of 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 4 of 5 www.lansdale.com Issue A ML12034 LANSDALE Semiconductor, Inc. (ML12034-5P) θ θ P DIP 8 = PP PLASTIC PACKAGE (ML12034PP) 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 5 of 5 www.lansdale.com Issue A