LTC6957IDD-3

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The LTC6957IDD-3 is a low skew, high performance clock buffer and driver manufactured by Linear Technology. It is designed to distribute and drive high frequency clock signals using its on-chip voltage regulator, low input/output skew, low noise and low jitter. Its superior electrical performance and integrated features make it ideal for high reliability applications including digital video/audio, data acquisition systems, audio production equipment, and industrial automation.

The LTC6957IDD-3 operates from a single +3.3V power supply, and is capable of distributing and driving clock frequencies up to 400MHz. It can be configured for 1, 2, 4, or 8 differential output pairs. Each output pairs can be individually enabled/disabled and can be configured for either AC or DC coupled output.

The LTC6957IDD-3 has integrated features that are tailored for clock and timing applications. It includes a voltage regulator with adjustable ouput voltage, allowing users to precisely set their voltage levels and minimize jitter on the clock signal. It also features an Integrator Mode which eliminates the need for an external clock divide-by-2 circuit, providing a simpler and more efficient method of generating lower output frequencies. Lastly, the LTC6957IDD-3 includes a power-on reset (POR) circuit, which ensures that an initial configuration is applied and that all outputs are held in a low state until the power-up sequence is complete.

The LTC6957IDD-3 can be configured to drive up to 8 outputs in either AC or DC coupled mode. When configured for AC coupled mode, each output can be low-skew clocked at up to 400 MHz. For DC coupled mode, the outputs can be clocked up to 200MHz. A differential input pair is used for the LTC6957IDD-3, and each input is independently enabled and disabled. The input supply can range from single-ended 1.8V to 3.6V, while the output supply can range from 2V to 5.5V. This wide range of supply voltages and frequencies allows the LTC6957IDD-3 to be used in a wide range of applications.

The LTC6957IDD-3 is ideal for applications requiring low jitter, low noise and low skew clock distribution and driving. It can achieve high performance in a variety of applications including digital video/audio, data acquisition systems, audio production equipment, and industrial automation. The integrated features such as the on-chip voltage regulator, low skew inputs/outputs, and power-on reset make it a great choice for these applications.

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