CSPT857CPAG8

Ratio - Input:Output:	1:10
Base Part Number:	IDTCSPT857
Supplier Device Package:	48-TSSOP
Package / Case:	48-TFSOP (0.240", 6.10mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 70°C
Voltage - Supply:	2.3 V ~ 2.7 V
Frequency - Max:	220MHz
Differential - Input:Output:	Yes/Yes
Series:	--
Number of Circuits:	1
Output:	Clock
Input:	Clock
Main Purpose:	Memory, DDR, SDRAM
PLL:	Yes
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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The Clock Synchronous Phase-Locked Timer CSPT857CPAG8 (CSPT857CPAG8), also known as phase-locked-loop (PLL), is a type of integrated circuit (IC) that acts as a precision timing device. It has many applications in various industry fields, ranging from data communications to industrial control and automotive. This article will discuss the application field and working principle of CSPT857CPAG8.The CSPT857CPAG8 is widely used in PC-PC(Personal Computer-Personal Computer) network, GSM and other communications systems, as well as digital products for the faithful transmission of digital signals. PLLs are also utilized in the automotive industry due to their effectivity in offering an accurate timing solution for controlling actuators and ensuring the operation of onboard systems. PLLs offer an efficient and accurate timing solution in many other industries such as robotics and robotics control systems, navigation systems, industrial machines, medical instruments and many more.The CSPT857CPAG8 can accurately monitor input and output frequencies within a wide range of frequencies, allowing the system to run smoothly and productively. It has a high performance and programmable clock multiplier, and is able to easily synchronize complex clock control systems. The CSPT857CPAG8 has a low-power standby mode and a high-power operation node for reduced power consumption and improved performance when powering multiple devices.The CSPT857CPAG8 also comes with a set of features, such as pulse timing and pulse counting/measuring, which make it suitable for applications that require precise timing. This PLL circuit also boasts a near-zero crosstalk and way to reject any unwanted clock frequencies.The working principle of the CSPT857CPAG8 is based on a loop filter, which is configured to track the desired frequency and reject any unwanted noise, as well as a VCO, or voltage-controlled oscillator. This oscillator increases or decreases the voltage input depending on whether the desired frequency is greater or less than the measured one. The circuit can be configured with either parallel or serial loops, allowing it to accurately track or reject the targeted frequency.The loop filter in the CSPT857CPAG8 consists of high-performance, low-power high-side output buffers, gain blocks and capacitors. The voltage-controlled oscillator is composed of low-power, low-noise, high-performance low-side output buffers, programmable current- and voltage-controlled oscillator (VCO) modules, attains and locks the frequency of the input signals within the given range. The resulting output frequency can be adjusted in real-time and is also capable of rejecting other unwanted frequencies that may interfere with the desired one.Overall, the Clock Synchronous Phase-Locked Timer CSPT857CPAG8 is a versatile and powerful PLL that is suitable for a range of timing and precision applications. It is able to monitor input and output signals over a wide frequency range and accurately reject any unwanted frequencies, providing reliable operation in numerous industries.

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