MC12079数据手册恩XP中文资料规格书

描述 Description

Overview The MC12079 is a single modulus divide by 64, 128, 256 prescaler for low power frequency division of a 2.8GHz (typical) high frequency input signal. Divide ratio control inputs SW1 and SW2 select the required divide ratio of ÷64, ÷128, or ÷256.

特性 Features

An external load resistor is required to terminate the output. A 1.2k Ohm
resistor is recommended to achieve a 1.6V pp output swing, when dividing
a 1.1GHz input signal by the minimum divide ratio of 64, assuming a 12pF
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 V out
specification for various divide ratios at 2.8GHz input frequency.
•2.8 GHz Toggle Frequency
•Supply Voltage 4.5 to 5.5V
•Low Power 9.0 mA Typical at V CC = 5.0 V
•Operating Temperature Range of –40 to 85°C