IDT49FCT3805QI

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The IDT49FCT3805QI is a high- speed buffer/driver member from IDT’s FCT3805 family of Clock/Timing products. It offers high speed, wide operating temperature range and low power dissipation, making it ideal for applications where low jitter, low noise and low power are key requirements. It is a single switcher with dual independent inputs, each having a rise and fall times of 3.5ns (typical). The device is also capable of providing adjustable skew of up to ±100ps in a single package.

The IDT49FCT3805QI is a perfect solution for applications such as PC clock buffering, PLL reference buffering, bus clocking, clock distribution and port switching. The product’s low jitter and noise allow it to operate in high-speed systems with minimal impact on system performance. It is an especially useful device for applications with limited space and/ or power requirements.

The IDT49FCT3805QI is based on a “Differencing Driver” architecture. This architecture enables the device to reduce EMI and reduce jitter. The device utilizes a pin-selectable output impedance which allows for lower output loading, reducing overall power consumption. Additionally, the product is designed to operate over a wide temperature range (–40° to +85°C).

The IDT49FCT3805QI is designed to meet high-speed interfaces and is optimized for both rising-edge and falling-edge clocking. It features adjustable clock skew of up to ±100 ps, reducing clock skew propagation delay and avoiding unnecessary skew compensation. This allows the device to be used with wider operating frequency range compared to standard clock buffers.

The product also features an integrated differential capacitor allowing for stable termination of the output devices in high-side loading applications. The built-in active pull-down feature increases the drive capability of the output devices and ensures that the device will always remain in a known state, even during extreme frequency changes.

The IDT49FCT3805QI is a versatile and powerful device suitable for a wide range of Clock/Timing applications. Its low jitter performance, wide operating temperature range, adjustable skew and integrated differential capacitor make it a perfect choice for high-speed clocking and buffering applications where low power dissipation, minimal noise and high reliability are key requirements.

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