MC12080

MC12080 1.1 GHz Prescaler Description 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 W 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 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 These Devices are Pb−Free and are RoHS Compliant Table 1. MAXIMUM RATINGS Rating Symbol Value Unit Power Supply Voltage, Pin 2 VCC −0.5 to 7.0 Vdc Operating Temperature Range TA −40 to 85 °C Storage Temperature Range Tstg −65 to 150 °C Maximum Output Current, Pin 4 IO 10 mA Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect d...