CDC391DG4

Series:	--
Packaging:	Tube
Part Status:	Active
Type:	Fanout Buffer (Distribution)
Number of Circuits:	1
Ratio - Input:Output:	1:6
Differential - Input:Output:	No/No
Input:	TTL
Output:	TTL
Frequency - Max:	100MHz
Voltage - Supply:	4.75 V ~ 5.25 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	16-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	16-SOIC
Base Part Number:	CDC391

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CDC391DG4: Clock/Timing - Clock Buffers, Drivers

The CDC391DG4 is a clock/timing device from Texas Instruments that belongs to the Clock Buffers, Drivers family. It is a monolithic frequency dividers fabricated using a well-proven CMOS process. It allows for the frequency division of a specified input clock signal and is available in a 7-pin surface mount package. This stage of frequency division serves as a front-end for low frequency clocks in embedded systems as it ensures dependable and reliable clock distribution from a single source over a broad frequency range.

Application Field

The CDC391DG4 is designed with low power consumption in mind to meet the lowest power requirements while providing superior performance. It is ideally suited for applications such as frequency division in embedded systems and controllers, battery-powered equipment, mobile phones, PDAs and other portable applications. This device is also well-suited for motor control and power supply control as it has both high frequency and wide dynamic range capabilities.

Working Principle

The CDC391DG4 consists of an input divider and a control input divider, connected in a series configuration. The divider chain further consists of two mutually independent 7-bit sub-dividers. The input divider is capable of dividing incoming clock signals up to P17 in frequency. The value of the frequency division is determined by the digital controls incorporated into the device, which enable user-controlled scaling of the input clock frequency. The output of the device is a high frequency clock with a frequency up to 8 MHz at a 50% duty cycle.The CDC391DG4 offers excellent performance for frequency division, with low jitter and high accuracy. It has excellent noise immunity due to its architecture and is tolerant of output load changes. In addition to this, the CDC391DG4 supports several features that make it ideal for clock buffering and frequency division applications. These features include low power consumption, programmable dividers, low jitter and wide frequency range. In conclusion, the CDC391DG4 is a reliable and easy to use clock/timing device that is perfect for use in embedded systems, controllers, battery-powered equipment, motor control, and power supply control applications. With its low power consumption, excellent jitter suppression, wide frequency range, and robust architecture, the CDC391DG4 is an excellent choice for clock buffering and frequency division applications.

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