ZL40255LDG1

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The ZL40255LDG1 is a Clock Buffer, Driver and Timing Integrated Circuit (IC) from the ZL4025 Series of devices produced by Zilog Inc. The ZL40255LDG1 is designed to be used in a wide range of applications, including telecommunications, industrial systems and consumer electronics.

The ZL40255LDG1 provides two functions: it acts as a clock buffer, providing low noise and low jitter clock outputs; and it also acts as a data bus driver, providing bidirectional differential data transmission.

The ZL40255LDG1 operates with a supply voltage of 1.8 volts and has the additional capability of accepting logic-level inputs up to 3.3 volts. Furthermore, the device is specified for operation at a temperature range from -20°C to +85°C.

The ZL40255LDG1\'s clock buffer consists of a one-to-eight driver. This buffer accepts a digitally encoded clock, provided as differential signals. The outputs of the buffer are 8 low-jitter BCLK signals, each from one of the 8 buffers.

The ZL40255LDG1\'s data bus driver provides bidirectional differential data transmission. The driver consists of a data bus driver and a return driver. The data bus driver accepts a digitally encoded data bus. The return driver accepts a differential signal that is generated by a return line of the data bus. The driver then combines the data and return signals to give a single differential signal.

The ZL40255LDG1 is also designed to protect against any external influences, such as electrostatic discharge and over-voltage surges. An ESD protection circuit is included on the chip, while the outputs are protected against over-voltage surges by internal current limiters. The device also features a built-in power-on reset circuit, which ensures that the device starts up correctly in any conditions.

In summary, the ZL40255LDG1 is a low-noise, low-jitter clock buffer and data bus driver. It is well-suited for a wide range of applications, including telecommunications, industrial systems and consumer electronics. Furthermore, it provides protection from any external influences, such as electrostatic discharge and over-voltage surges, and includes a built-in power-on reset circuit.

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