SI53320-B-GT

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The SI53320-B-GT is a high-performance differential clock driver developed by Silicon Laboratories. Characterized for a wide range of industry applications, SI53320-B-GT is capable of delivering low jitter clock signals over long reaches. The part features extensive user-programmable features, making it suitable for a wide range of applications dealing with communication clock signals. It belongs to the Clock/Timing - Clock Buffers, Drivers technology category of integrated circuits.

Application Field

The SI53320-B-GT is suitable for use in applications requiring high-reliability clock delivery and low-jitter clocking. These include communication applications such as base station, wireless backhaul, wireless local loop and others. Additionally, the I/O pad structure of the part allows it to be used in applications requiring galvanically-isolated control of the communications network.

The convenience and flexibility afforded by the programmability included in the part make it suitable for a wide range of applications. These include clock synchronization on transmission lines, 10 gigabit Ethernet systems, multiplexing switching, SONET/SDH, Optical Networking, and many more. The SI53320-B-GT\'s wide frequency range (100 kHz - 5.8 GHz) also makes it suitable for clock and timing generation, precision synchronization and jitter compensation.

Working Principle

The SI53320-B-GT utilizes a differential clock driver based design, driving differential outputs through a buffering mechanism with an internal charge pump to achieve high reliability clock delivery. The input stage includes a tunable frequency synthesizer that adjusts the reference clock frequency, allowing the user to select any frequency within the range available for the part. The synthesizer is coupled with a differential output driver, which receives the frequency reference from the synthesizer and drives the output lines.

The output stage contains a buffering circuit and a voltage regulator to ensure clean and accurate signal transmission. The output lines can be configured to have either a single-ended or bidirectional transmission. The differential output driver provides a full 1V logic level differential signal, providing low-jitter clocking to the outputs. The SI53320-B-GT also includes a flexible power supply design that allows the user to select the desired output voltage.

The part includes several features such as programmable output slew rate, slew rate limiting, charge pump current and voltage monitoring, voltage lockout, reference clock failover, and loopback test capabilities. Additionally, the SI53320-B-GT has built-in start-up diagnostics and auto-calibration functionality, further improving the system\'s reliability.

In conclusion, the SI53320-B-GT is a high-performance differential clock driver designed for applications requiring low-jitter synchronization and reliable clock delivery. The wide programmability of this part makes it suitable for applications such as 10 gigabit Ethernet systems, multiplexing switching, SONET/SDH, Optical Networking and many more. The SI53320-B-GT\'s differential output driver provides a full 1V logic level differential signal, allowing users to achieve accurate and reliable clocking.

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