Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Type:	--
PLL:	Yes
Input:	CMOS, TTL
Output:	CMOS, TTL
Number of Circuits:	1
Ratio - Input:Output:	1:1
Differential - Input:Output:	No/No
Frequency - Max:	40MHz
Divider/Multiplier:	Yes/Yes
Voltage - Supply:	3 V ~ 3.6 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SOIC
Base Part Number:	P281*

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I2811BF-08SR application field and working principle

Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers play a very important role in the operation of many electronic systems. The I2811BF-08SR from IDT is a wide-frequency clock and frequency synthesis IC designed for applications in telecommunications, computing, data communications, instrumentation, industrial controls and other industries. The I2811BF-08SR IC offers many features and applications that are useful for these types of applications. The IC includes four independent differential oscillator channels, each of which can be configured to operate within an AC or DC coupled frequency range of 0.1MHz to 1GHz. The three oscillator channels can be configured to receive one of four different reference clock signals. The fourth channel can be configured to use an octal clock receiver that can receive up to 8 reference clock inputs. This configuration allows the I2811BF-08SR to be used in applications that require both wide frequency ranges and multiple clock sources. The I2811BF-08SR can be used in applications such as frequency generation, frequency synthesis, clock distribution and jitter control. In frequency generation applications, the I2811BF-08SR can be configured to output a frequency that is deterministic from a single reference clock signal, or from multiple reference clock signals combined with a clock synthesizer. In frequency synthesis applications, the I2811BF-08SR can be used to generate a specific frequency from several reference clock signals. In clock distribution applications, the I2811BF-08SR can be used to generate clock signals that are distributed to multiple locations. Finally, in jitter control applications, the I2811BF-08SR can be used to reduce the amount of jitter in clock signals.The I2811BF-08SR has integrated PLLs that allow for accurate frequency generation. The PLLs use a proportional-integral-derivative (PID) controller with a digital filter to achieve a high level of accuracy in frequency generation. The IC also has advanced features such as integrated phase-locked loops (PLLs), automatic voltage compensation and a frequency-to-time converter for improved jitter control.In addition to the features mentioned above, the I2811BF-08SR also has various integrated analog and digital circuitry. The analog circuitry includes voltage references and high-impedance input and output drivers to allow for the generation of high-precision clock signals. The digital circuitry includes a variety of counter and timer circuits, as well as three independent programmable pulse generators. This combination of analog and digital circuitry allows the I2811BF-08SR to be used in a variety of applications.The I2811BF-08SR is a very versatile IC that can be used in a variety of applications. It is capable of generating multiple clock signals with a wide range of frequencies, and its integrated PLLs provide a high level of accuracy in frequency generation. The integrated circuitry also allows the IC to be used for applications such as frequency synthesis, clock distribution, and jitter control. The I2811BF-08SR is an ideal choice for many clock and timing applications.

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