SI5344A-D-GMR

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The SI5344A-D-GMR is a feature-rich, integrated clock and data recovery (CDR) solution from Silicon Laboratories. This device provides a highly accurate, robust solution for critical data transmission applications. It is optimized for implementation in digital optical networks, Ethernet over long-haul, and high-speed digital Terrestrial Broadcasting applications. The SI5344A-D-GMR is optimized for a broad range of bit rates up to 144 Mbps.

The SI5344A-D-GMR is a combination of many features, including a PLL, VCO, 4-channel multiplexer, USB 2.0 transceiver, 100 MHz crystal oscillator, and a low-jitter clock data recovery circuit. The device also supports full IEEE 1588v2 protocol to synchronize multiple clocks in a network.

The PLL (phase locked loop) of the SI5344A-D-GMR is a type of closed-loop control mechanism that helps to control the output frequency of the device. The PLL consists of two circuit elements: the phase detector and the voltage-controlled oscillator (VCO). The phase detector compares the input and output frequency, and generates a signal proportional to their phase difference. This signal is then used to control the VCO, causing it to match the input frequency.

The SI5344A-D-GMR also includes a 4-channel multiplexer (MUX). The MUX is used to switch between different clocks, allowing the device to operate with multiple reference clocks. It can accept inputs from multiple frequency sources and select the one that is closest to the desired frequency. This improves the accuracy and reliability of the device.

The SI5344A-D-GMR also includes a USB 2.0 transceiver, which is used to send and receive digital data. The transceiver is compliant to the USB 2.0 standard, allowing for transfer speeds of up to 480 Mbps. This feature allows for high-speed data transfer and enables the device to be used as a low-cost, highly integrated data link.

The SI5344A-D-GMR also includes a 100 MHz crystal oscillator. This oscillator provides the clock signal to the device and enables it to run at frequencies up to 100 MHz. The crystal oscillator is highly accurate and its frequency stability is superior to that of any other type of oscillator.

The SI5344A-D-GMR also includes a low-jitter clock data recovery circuit. This feature allows the device to operate with very low jitter even when operating at high data rates. The low-jitter clock data recovery also allows the device to operate at a wide variety of data rates.

The SI5344A-D-GMR is an ideal solution for clock and data recovery in critical data applications. The device is highly robust and provides highly accurate timing. It is optimized for operation in digital optical networks, Ethernet over long-haul, and high-speed digital Terrestrial Broadcasting applications.

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