IDT2308A-2DC8

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The IDT2308A-2DC8 is a Zero Delay Buffer from Integrated Device Technology, Inc. (IDT), designed to provide frequency multiplication, clock driving, and synchronization of multiple clock signals with minimal time propagation irregularities. It is a clock/timing generator that combines a variable multiplication ratio digital PLL system and a CMOS multiplexed digital buffer to produce a wide variety of system clock frequencies. It is particularly suited for clock applications requiring reduced jitter and high frequency stability, such as in frequency synthesis systems, MultiMediaCard™, and set-top box systems.

The IDT2308A-2DC8 can generate 8 different clock frequencies independently from four reference clocks. It is designed to provide minimal propagation delay through its eight output buffers, which can be configured as differential pairs or single-ended outputs. With its wide range of outputs, it is an ideal solution for clock synchronization and providing clocks for different components of a system. Additionally, its low power consumption makes it an easy choice for battery-powered applications.

The working principle of the IDT2308A-2DC8 is based on a digitally controlled PLL (DPLL) technology. As with all PLLs, the DPLL consists of a reference input, a phase detector, a loop filter, and a voltage-controlled oscillator (VCO). The DPLL in the IDT2308A-2DC8 is designed to be very precise, and its Phase Detector/VCO combo is able to generate output frequencies within 2 to 250 MHz. Additionally, its built-in output divider allows for a wide range of output frequencies from two to eight times the reference frequency.

The IDT2308A-2DC8 uses a multiplexed CMOS gate to drive its outputs. This multiplexer provides high frequency stability and precise control of the propagation delay through the outputs. Additionally, the multiplexer can be locked to the reference input for phase-synchronized clocking capabilities.

The IDT2308A-2DC8 is designed to be used in applications that require low propagation delay between the input reference and the output signals. It is particularly suitable for applications that use digital frequencies and require precise synchronization and tight timing control, such as multimedia card systems, telecommunications, digital television, and signal multiplexing systems. Additionally, its low power consumption makes it a great option for battery-powered or energy-efficient applications.

In conclusion, the IDT2308A-2DC8 is a very versatile clock/timing generator that is well-suited for frequency multiplication, clock driving, and synchronization of multiple clock signals with minimal time propagation irregularities. It utilizes a DPLL and a multiplexed CMOS gate to generate a wide variety of system clock frequencies with high stability and precision. Additionally, its low-power consumption makes it ideal for battery-powered applications and other energy-efficient systems. This makes the IDT2308A-2DC8 a great choice for frequency synthesizer and clock generator applications.

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