MPC9449AC

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MPC9449AC is a device designed to transport clock signals over transmission lines. It is a type of a clock buffer, driver, andclock distribution device. The main purpose of the device is to ensure that clock signals can travel long distances while maintaining accurate frequency and low timing skew.

An essential aspect of clock signals transmission is that it can be bound so that the propagated clock signal is synchronized to the source. MPC9449AC comes in both the Duty-Cycle-Corrected (DCC) form and the Non-DCC form for such exacting timing requirements.

The DCC part features a programmable 50/50% duty cycle, allowing it to maintain the same duty cycle across long distances over lossy transmission lines. The Non-DCCC part is used when greater output frequency range is needed, such as found in a spread spectrum clocking signal.

In addition to its clock distribution abilities, the MPC9449AC also functions as a buffer, providing an increased drive for the output signal. The signal strength at the output is five times that of the device’s input signal, thus enabling the signal to travel safely over a lengthy proximate line.

The device is also designed to provide high signal integrity across a wide range of frequencies. It has a guaranteed signal-to-noise ratio of better than -80dB, and a signal-to-skew ratio of better than -45dB. The device also provides low jitter operation, which is essential in clock signals applications.

The device is fabricated in a advanced CMOS process, which makes the device a solution for low power demand environments. Its minimal external component count further reduces the application’s overall cost.

The MPC9449AC has pin-compatible versions for both low voltage (2.5V) and higher voltage (3.3V). It is available in a 16-pin TSSOP package and a 16-pin VQFN package. It supports several different output frequencies, including those up to 160MHz for the DCC and beyond 160MHz for the non-DCC parts.

In summary, MPC9449AC is a single-chip clock buffer, driver, and clock distribution device with low power and cost advantages. The device is suitable for applications requiring precise clock signal distribution across a network, as well as high signal integrity over long distances. It also allows designers greater flexibility by providing both duty-cycle-corrected and non-duty-cycle-corrected external clock frequencies.

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