CDCU877ARHARG4

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The CDCU877ARHARG4 is a clock and timing application-specific integrated circuit (ASIC), designed to provide timing and clock-related functions for a wide range of applications. With its versatile interface and advanced clock management capabilities, it is suitable for a variety of clock synchronization, frequency extension, delay control and phase control applications.

Built around a high-speed programmable ASIC core, the CDCU877ARHARG4 contains a low-phase noise clock generator and phase-locked loop circuitry, as well as a wide range of digital signal processing (DSP) blocks, such as a clock synthesis/delivery engine, power supply voltage detector, low-noise reference output generator and multi-channel clock synchronization module.

In addition, the integrated digital-to-analog converter (DAC) supports fast gain control. This makes the CDCU877ARHARG4 capable of highly accurate frequency synthesizing and exchanging for different applications.

The core of the CDCU877ARHARG4 is its clock generator, which provides a low-jitter, low-phase noise clock signal at up to 500 MHz and is designed to handle a wide range of frequency synthesis requirements. The clock generator also supports up to four dynamic clocking frequency bands and provides a wide range of user-adjustable frequency options.

The integrated PLL circuitry allows the CDCU877ARHARG4 to accommodate rapid, synchronized changes in system clocks or other reference clocks. The PLL offers an integrated digital-to-analog converter (DAC) and supports up to two pulse-width-modulated (PWM) clocks, each with its own frequency accuracy and delay settings.

The CDCU877ARHARG4 also includes a wide range of digital signal processing blocks, such as a clock/data conversion engine, high-speed pulse-width converter and delay line controller. With its flexible range of clock output masters and multiple slave clocks, it supports a variety of distributed clock topologies, providing faster clock exchanges for modern system applications.

The power-supply voltage detector ensures the accuracy of the silicon timing paths, while the high-speed serial interface supports up to a pair of 100 Mb/s clock channels for precise clock/data transmissions. The on-chip DAC supports fast gain control for accuracy, and enables performance optimization for fast and precise timing applications.

The multi-channel clock synchronization module of the CDCU877ARHARG4 provides extended clock synchronization capabilities, allowing multiple clock signals to be source-synchronized in applications such as audio/video synchronisation, baseband processing and digital timing control. Furthermore, with its built-in support for low-voltage differential signaling (LVDS) technology, the CDCU877ARHARG4 can provide low-jitter clock synchronisation for a wide range of audio and video equipment.

Overall, the CDCU877ARHARG4 is a highly versatile integrated circuit, providing advanced clock management and timing capabilities for a variety of clock synchronization, frequency extension and phase control applications. With its wide range of interfaces, digital signal processing blocks and extended clock synchronization capabilities, the CDCU877ARHARG4 is a powerful, cost-effective solution for a range of applications.

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