601R-25LF

Differential - Input:Output:	No/No
Base Part Number:	ICS601-25
Supplier Device Package:	20-QSOP
Package / Case:	20-SSOP (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 70°C
Voltage - Supply:	2.97 V ~ 3.63 V
Divider/Multiplier:	Yes/Yes
Frequency - Max:	156MHz
Series:	--
Ratio - Input:Output:	1:5
Number of Circuits:	1
Output:	CMOS
Input:	Clock, Crystal
PLL:	Yes
Type:	Clock/Frequency Synthesizer
Part Status:	Obsolete
Packaging:	Tube

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IntroductionThe application field and working principle of 601R-25LF clock generator is an important topic for designers for that it is a device suitable for all kinds of clocks and timers. This article will explain why people select such a clock generator and explain the working principle behind it. Design and Selection of Clock GeneratorTo design a circuit or application that needs clock and timing signals one of the major steps is to select the right clock generator. The task of selecting the right type of clock generator, taking into account efficiency and price, lies on designers. A good selection of clock generator can increase the efficiency and reduce cost of the design. Considering the characteristics such as frequency range, accuracy and power consumption many people choose 601R-25LF clock generator as the primary choice for their designs. It is available in two different package options of SOIC and TSSOP. It is a versatile device that can provide up to 25MHz of clock frequency with excellent accuracy and low power consumption. Functional Principle of the Clock GeneratorThe functioning principle of 601R-25LF is based on a highly integrated PLL (Phase Locked Loop), which has five separate subsystems that work together: an oscillator, a divide by-2 counter, a divide by-5 counter, an internal reference and a charge pump. The oscillator consists of an amplifier, a feedback circuit and an active element (resistor and capacitor). The oscillator generates an initial clock signal, which can be seen on output pin OSCOUT. The oscillator frequency is adjustable by two optional external resistor. The output of the oscillator goes to the Divide-by-2 Counter, which halves the frequency of the clock. The divided signal is then fed to the Divide-by-5 Counter, which reduces the frequency even further. The Divide-by-2 and Divide-by-5 counters are controlled by the internal reference, which maintains the stability of the system. The reference voltage is regulated by a loop of the internal charge pump. The clock signal at the output of the counter is regulated by the input voltage as per the internal reference voltage. This allows the frequency at the output of the counter to be adjustable with the input voltage. Features of 601R-25LF601R-25LF clock generator has some features which makes it suitable for a variety of applications. Its first feature is the wide range of frequencies offered, the device can provide output clock signals ranging from 1MHz to 25MHz. Second, it is capable of providing excellent accuracy with maximum jitter of just 0.2ps. Third, it is designed for low power applications and its power consumption is as low as 10mW. Finally, the device is offered in small packages, which makes it easy to use on existing circuit boards as well as on prototyping platforms. ConclusionIn conclusion, it can be said that the 601R-25LF is a great option for any clock, timer or frequency synthesizer application. Its design and selection process is rather straightforward and its working principle is easy to understand. Finally, it has some unique features which makes it highly suitable for use in a variety of applications.

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