MC12080数据手册集成电路（IC）的时钟发生器PLL频率合成器规格书PDF

描述 Description

Overview 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.

特性 Features

An external load resistor is required to terminate the output. A 820 W
resistor is recommended to achieve a 1.2 V pp 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 V out
specification for various divide ratios at 1.1 GHz input frequency.
• 1.1 GHz Toggle Frequency
• Supply Voltage 4.5 to 5.5 V
• Low Power 3.7mA Typical at V CC = 5.0 V
• Operating Temperature Range of –40 to 85°C