MK2746-01GLFTR

Differential - Input:Output:	No/No
Base Part Number:	MK2746-01
Supplier Device Package:	16-TSSOP
Package / Case:	16-TSSOP (0.173", 4.40mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 70°C
Voltage - Supply:	3 V ~ 3.6 V
Divider/Multiplier:	No/No
Frequency - Max:	27MHz
Series:	--
Ratio - Input:Output:	2:5
Number of Circuits:	1
Output:	CMOS
Input:	Clock, Crystal
PLL:	Yes with Bypass
Type:	Clock/Frequency Synthesizer
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Applications and Working Principles of MK2746-01GLFTR

MK2746-01GLFTR is a new-generation monolithic clock generator produced by Microchip that is designed for the generation of ultra-low-power clock and timing signals. It is a low-cost, low-jitter, low-power solution for a variety of clock generation applications such as digital television (HD/SD), radio receivers (DVB-T2 and ISDB-T), telecommunication, microprocessor clock synchronization, and audio-video systems. This device combines the functions of frequency synthesizer and phase locked loop (PLL) to provide low-noise, low-jitter clock signals that are optimized for today\'s power-sensitive applications.

Overview

The MK2746-01GLFTR is a versatile clock source that is suitable for applications ranging from 1 microsecond up to 1000 seconds and is capable of generating both a single pulse and a period pulse. It features a frequency synthesizer section with a 10-bit IEEE STD-1149.7 JTAG interface that provides programmable frequency generation from 8kHz to 8GHz. It also provides a programmable feedback path and external reference inputs, which can be used to accurately adjust and lock the output frequency. The MK2746-01GLFTR also has a PLL section that is capable of locking the output frequency to the input reference frequency and provides a low-jitter digital clock output. Its wide range of output frequencies, easily programmable frequency, and adjustable clocking characteristics make the MK2746-01GLFTR suitable for use in many low-power, low-cost consumer and industrial applications.

Features

The MK2746-01GLFTR offers many features to optimize clock generation for low-power applications. It has a flexible control interface that can be programmed through the 10-bit IEEE STD-1149.7 JTAG interface for maximum flexibility. It features a built-in phase-locked loop that can lock the synthesized output frequency to the external reference clock to ensure low jitter and accurate frequency generation. The device provides an adjustable reference frequency from 8kHz to 8MHz which allows the user to adjust the output frequency for the desired application. It is also equipped with an adjustable output frequency divider, which can be used to generate a variety of pulse widths for a wide range of applications. It also offers a programmable output waveform, which can be used to generate a single pulse or a period pulse of different duration.

Applications

The MK2746-01GLFTR is well suited for a variety of low-power clock generation applications that require a low-cost, low-jitter clock source. It is suitable for applications such as digital television (HD/SD), radio receivers (DVB-T2 and ISDB-T), telecommunication, microprocessor clock synchronization, and audio-video systems. It can also be used for medical and industrial test equipment, medical imaging systems, and scientific instruments. It is also suitable for applications that require frequency synthesis for oscillator substitution and for driving filter banks.

Working Principle

The MK2746-01GLFTR consists of two sections: a frequency synthesizer and a phase-locked loop. The frequency synthesizer determines the output frequency by dividing a reference clock frequency and by multiplying the divided reference frequency, with a programmable JTAG-controlled parameter. This reference frequency can be from 8kHz to 8MHz. The phase-locked loop adjusts the output frequency to match the reference frequency, using an adjustable feedback loop. The phase-locked loop generates a digital clock signal with minimum jitter. The output frequency of the device is also adjustable using the output frequency divider and the output waveform can be programmed to generate a single pulse or a period pulse.

Conclusion

In conclusion, the MK2746-01GLFTR is an ideal low-power clock generator for low-cost consumer and industrial applications that require an accurate, low-jitter clock source. It is an easy-to-use clock source that is versatile and can be programmed through the 10-bit IEEE STD-1149.7 JTAG interface for maximum flexibility. It also features an adjustable reference frequency and output frequency divider, which provides a wide range of clocking options for different applications. The device also features a programmable output waveform, enabling the user to generate a single pulse or a period pulse of different duration. It is suitable for applications such as digital television, radio receivers, telecommunication, microprocessor clock synchronization, and audio-video systems.

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