ASM3P2111BG-08SR

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The ASM3P2111BG-08SR often falls into the category of clock/timing, including clock generators, PLLs, and frequency synthesizers. Clock/timing solutions are required for a variety of applications, depending on the desired speed, accuracy, and stability. The ASM3P2111BG-08SR, specifically, is a low power and low jitter clock multiplier solution for networking applications.The ASM3P2111BG-08SR is a powerful, multi-mode and low-power clock multiplier solution. It has an input clock frequency range from 10MHz to 200MHz. The device utilizes an integrated Phase-Locked Loop (PLL) and a digital code tuning and frequency multiplying technique to generate multiple output clocks with a large degree of frequency flexibility. It has four low-skew outputs that can provide a maximum frequency of 250MHz. The device has a low power consumption of less than 120mW, allowing it to be well suited to a wide variety of demanding applications.The ASM3P2111BG-08SR is designed to support a wide range of applications, including PCIe, Ethernet/Fiber Channel, SAS/SATA and AV/broadcast equipment. In PCIe applications, the ASM3P2111BG-08SR is capable of providing 200MHz differential reference clock for PCIe clock cores and for signal integrity testing. It is also used to provide clock synchronization in Ethernet, SAS and SATA applications. In broadcast and professional audio-visual (AV) applications, such as audio signal processing, the ASM3P2111BG-08SR can provide precision clock synchronization of multiple clocks with low jitter and stable operating frequencies.The ASM3P2111BG-08SR also can provide clock redundancy in multiple applications. Clock redundancy or femto-clocking is a technique used for redundancy and failover in critical systems. In femto-clocking, Clock generators are used to alternate between multiple clock outputs, so if there is an issue with one clock, the system is able to switch over to a different, more reliable, clock.The ASM3P2111BG-08SR is built around a PLL and multiphase digital frequency multiplier (DFM) system. The PLL is used to receive an input clock signal, normally from an oscillator or a stabilized frequency source. The DFM is then used to multiply the input frequency and generates multiple, low-skew, high-frequency output clocks. The PLL utilizes three internal stages. The first stage is the phase frequency detector, which uses the same principle as a traditional circuit to detect the phase difference between the input clock and the feedback clock. The second stage is the low pass filter, which is used to filter out noise signals and convert the phase difference into a voltage control signal. The third stage is the voltage control oscillator, which uses the voltage control signal to adjust the frequency of the output clock. The ASM3P2111BG-08SR also features a programmable clock divider (CD), which enables configuration of the output frequency based on the desired frequency range. The divider uses digital logic to divide by two, four or six, for example. This is necessary for achieving frequency multiples/divisions that are beyond what the PLL/DFM system can support.In summary, the ASM3P2111BG-08SR is a powerful, low power and low jitter clock multiplier solution for multiple applications. It uses the modern digital frequency multiplier technology for accurate and reliable frequency multiplication and low-skew output signals. The integrated programmable clock divider allows for wider frequency ranges and more precise frequency control. The ASM3P2111BG-08SR can be used to provide clock synchronization in an array of applications and also provide clock redundancy in critical systems.

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