8431AMI-21LF

Differential - Input:Output:	No/Yes
Base Part Number:	ICS8431-21
Supplier Device Package:	28-SOIC
Package / Case:	28-SOIC (0.295", 7.50mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Voltage - Supply:	3.135 V ~ 3.465 V
Divider/Multiplier:	Yes/Yes
Frequency - Max:	350MHz
Series:	--
Ratio - Input:Output:	1:1
Number of Circuits:	1
Output:	LVPECL
Input:	Crystal
PLL:	Yes with Bypass
Type:	Frequency Synthesizer
Part Status:	Obsolete
Packaging:	Tube

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The 8431AMI-21LF is a clock generator and phase-locked loop (PLL) synthesizer designed to meet a variety of timing requirements in communications, computing, and instrumentation applications. It is a low-cost device that offers superior performance with low power consumption. The 8431AMI-21LF is designed to provide a wide range of frequency and phase control. It can be used to generate frequencies ranging from 1 kHz to 75 MHz, and provides the flexibility to accommodate virtually any system-level timing requirement.The 8431AMI-21LF is a fully integrated PLL and frequency synthesizer that includes a high-performance oscillator and multiple reference input ports. It also includes a wide range of output frequency dividers and dividers for selecting different reference sources. The PLL’s loop bandwidth and damping factor are factory set to ensure superior performance. This ensures that the output frequency remains stable even when the PLL is being used for applications that require extremely fast frequency switching.The 8431AMI-21LF’s performance characteristics enable it to be used in variety of timing applications. It can be used to generate reference frequencies for clock and data recovery systems, test and measurement systems, communication base stations and RF synthesisers. The device has a wide operating temperature range of -40˚C to +85˚C, which makes it suitable for both industrial and telecommunications applications.At the heart of the 8431AMI-21LF is the core frequency synthesizer. This includes a high-performance VCO, reference source inputs and various types of output frequency dividers. The VCO’s output is divided down to the requested output frequency, while the reference source input is used to provide an external reference signal. The reference source signals can be derived from a number of sources, such as crystal oscillators, clock generators or even external PLLs.The output frequency dividers enable the 8431AMI-21LF to provide output frequencies that are accurate to within +/-1 Hz, even when switching frequencies. The dividers also allow the output frequency to be switched with no delay or jitter. The PLL loop has a wide bandwidth and damping factor, allowing the device to operate efficiently with a minimum amount of power consumption. The loop also includes a low-noise prescaler to ensure that the reference signal is not compromised.The 8431AMI-21LF’s integrated features and wide operating temperature range make it a highly reliable, cost-effective solution for a variety of system level timing requirements. Its wide frequency range and flexible output dividers make it suitable for demanding communications, computing, and instrumentation applications.

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