PL135-67QC

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Clock Buffers, Drivers, and Distribution Circuits are required components when multiple clocks and control signals need to be routed in a system. They serve the purpose of transmitting and distributing clean, synchronized, and non-degraded signals throughout the system. As systems become more digital and require faster transmission of multiple signals, the technology of clock buffering, driving, and distribution must respond to the need for higher switching speeds with minimum propagation delays and low jitter.PL135-67QC is a Clock Buffer with differential output. It is designed to accept 1.8V HCSL, LVPECL, or LVDS input type and provide accurate clock skew and jitter improvement to drive multiple copies of the same clock signal with different voltage across the board. It widens the input buffer into two buffered outputs with adjustable VOH (1.2V minimum) and VOL (0.2V maximum).Additionally, the device integrates a driver stage with excellent impedance matching between the output stage and the data lines for better signal integrity. The output drivers are enabled and disabled by a low-power mode control; the low-power mode includes two individual power-down bits for both the input and output stages, in addition to a global shutdown. It also offers several output enable functions including programmable enable/disable and a synchronization logic.The PL135-67QC operates over an ambient temperature range of 0°C to +85°C and is available in a standard 8-pin thermosonic QFN package.The PL135-67QC can be used wherever high-frequency clocks need to be distributed within a system. It is suitable for a variety of applications such as portable devices, cameras, digital video broadcasting, high-definition television, and long-haul networks. Its flexible design allows it to be easily adjusted for multiple clock sources and different logic boundaries.The working principle of the PL135-67QC is simple yet highly effective. It features a fully differential input buffer that receives an input between LVPECL, HCSL, and LVDS standards for low-voltage operation. These standards are converted into a two-buffered outputs that provide clock skew improvement, as well as better noise rejection and jitter improvement. The voltage swing on the output buffers is adjustable, allowing file-level customization of the signal output.Furthermore, the device incorporates a driver stage, offering excellent impedance matching between the output stage and the data lines, thus optimizing signal integrity. It also has a low-power mode control feature with two individual power-down bits for both the input and output stages, in addition to a global shutdown. Additionally, several output enable functions such as programmable enable/disable and a synchronization logic are also available.In sum, the PL135-67QC is an optimal solution for distributing and controlling multiple clock signals in any application that requires high-speed signal transmission with minimal skew and jitter. Its adjustable swing on the outputs provides more accurate timing and better data integrity, while its low-power mode control feature conserves power when the device is not in use. This makes it an excellent choice for a variety of applications.

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