ZL40221LDG1

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The ZL40221LDG1 from ZhongLai Tech is a low-voltage differential signaling clock buffer that operates within space-constrained systems. The device is available in a compact LQFP (Leadless Quad Flat Package) package that provides designers with the flexibility to create a space-saving line card or to build multi-layer circuit boards with a low profile. As an important part of clock distribution, the ZL4021LDG1 buffers differential signals, allowing for less interconnect noise, ensuring that the clock is delivered with a highly deterministic, low-jitter performance.

The ZL40221LDG1 clock buffer offers a number of features that can help make clock distribution more efficient and cost effective. The device features a differential output buffer, which reduces the number of output drivers needed in the system, helping reduce overall circuit board area. This differential output buffer supports both LVPECL and LVDS output interfaces and can be used to generate up to two independent split clock outputs. The device also features a synchronous clock/data phase-lock loop (PLL) that reduces the number of input phase detectors required in the system, thus reducing overall power consumption.

The ZL40221LDG1 provides a maximum Fref frequency of 250MHz and utilizes a 2.5V power supply. The device provides a maximum clock jitter of 0.4ps and supports output cycle-to-cycle jitter of 1ps. It also provides an input-to-output delay of 0.3ns, allowing for a lower total power-consumption index, thus making it easier to build power efficient and low jitter clock systems.

The working principle of the ZL40221LDG1 is based on low-voltage differential signaling. This communication interface reduces interconnect and power supply noise, allowing for a higher frequency and lower jitter clock signal output. The buffer utilizes an input synchronous clocking system, which allows signals to be sent and received in a synchronous manner. The output clock signals are characterized by a sharp rising and falling edge profile, which helps to ensure a minimum amount of interference due to unwanted noise present in the system.

ZL40221LDG1, due to its features and performance, is widely used in networking, computing, and storage applications. For example, it can be used in Ethernet switches, servers, and 10G/40G/100G Ethernet devices. Moreover, it can be used in high-speed digital designs, including NICs, FPGA, and ASICs, as well as in high-speed memory devices such as DDR3, DDR4, and GDDR5.

The ZL40221LDG1, with its low-voltage differential signaling interface, can help design easily power-efficient, high-performance clock systems. Its features, along with its small form factor, make it an ideal choice for space-constrained applications, such as networking and computing devices.

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