MC12052A

Order this document by MC12052A/D MC12052A 1.1 GHz Super Low Power Dual Modulus Prescaler The MC12052A is a super low power dual modulus prescaler used in phase–locked loop applications. Motorola’s advanced Bipolar MOSAIC™ V technology is utilized to achieve low power dissipation of 2.7 mW at a minimum supply voltage of 2.7 V. The MC12052A 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 1.1 GHz in programmable frequency steps. A Divide Ratio Control (SW) permits selection of a 64/65 or 128/129 divide ratio as desired. The Modulus Control (MC) selects the proper divide number after SW has been biased to select the desired divide ratio. 1.1 GHz Toggle Frequency MECL PLL COMPONENTS ÷64/65, ÷128/129 LOW POWER DUAL MODULUS PRESCALER SEMICONDUCTOR TECHNICAL DATA 8 1 The MC12052 is Pin and Functionally Compatible with the MC12022 Low Power 1.0 mA Typical 2.0 mA Maximum, –40 to 85°C, VCC = 2.7 to 5.5 Vdc Short Setup Time (tset) 16 ns Maximum @ 1.1 GHz Modulus Control Input Level is Compatible with Standard CMOS and TTL Maximum Input Voltage Should Be Limited to 6.5 Vdc D SUFFIX PLASTIC PACKAGE CASE 751 (SO–8) 8 MOSAIC V is a trademark of Motorola 1 FUNCTIONAL TABLE SW H H L L MC H L H L Divide Ratio 64 65 128 129 SD SUFFIX PLASTIC PACKAGE CASE 940 (SSOP–8) PIN CONNECTIONS NOTES: 1. SW: H = VCC, L = Open. A logic L can also be applied by groun...