Clock dividers are a type of frequency divider, which mean they generate a low-frequency output from a high-frequency input. Clock dividers are used as frequency synthesisers as part of applications such as electronic countermeasures equipment, communications systems and laboratory instruments.
Types of clock dividers
There are two main types of clock dividers: analog and digital.
Analog
Analog clock dividers are less common and are typically used at very high frequencies. They operate by injecting a low-intensity, high-frequency signal into an oscillator. This in turn causes the oscillator to oscillate in step with the input signal, and its output is fed through a low-pass filter to provide the lower-frequency signal required.
Digital
Digital clock dividers as implemented in modern integrated circuits can function up to the tens of GHz range. Using a type of register known as a shift network, digital clock dividers take the last register's output and return it to the input register. The output signal is then derived from one or more of the register outputs.
Description:
I²C, pronounced I-squared-C, stands for Inter-Integrated Circuit. This
two-wire interface is a multi-master, multi-slave, single-ended, serial computer bus. SMBus is a subset of I²C.
Description:
I²C, pronounced I-squared-C, stands for Inter-Integrated Circuit. This
two-wire interface is a multi-master, multi-slave, single-ended, serial computer bus. SMBus is a subset of I²C.
Description:
Output Binary Buffers/Dividers Enable Extended Frequency RangeDivider Ratios
of 1/2/4/8/16/32/64/12823.5MHz to 6000MHz High-Performance Phase Frequency Detector (PFD) and Reference Frequency Reduces Spectral NoisePFD Up to 140MHzReference Frequency Up to 210MHz Low Normalized Inband Phase Noise of -230dBc/Hz ...
Description:
The MCP79401 general purpose I2CTM Compatible real-time clock/calendar
(RTCC) is highly integrated with memory and advanced features normally found in higher priced devices. These features include a battery switchover circuit for backup power, a time stamp to log power failures ...