MC75174BPG

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The MC75174BPG is a Quad Differential Line Driver designed for balanced communications systems. It features a four-channel, low-voltage differential signal (LVDS) driver that converts TTL/CMOS signals into LVDS levels and transmits them over balanced conductors. As with any driver, its primary application is to provide the necessary voltage level to allow signals to travel properly over longer distances. Additionally, the MC75174BPG offers increased data-transmission speed, advanced signal shaping capability, low power consumption in shutdown mode, and hot-swap support.

The MC75174BPG is classified as an interface – driver, receiver, transceiver – device. As a driver device, it consists of a unidirectional LVDS signal-generating circuit that may be applied to a path or line to interface with other circuits. The device uses current-mode logic, converting differential input signals into differential output signals, and is ideal for systems that require balanced signals.

The working principle of the MC75174BPG is based on voltage-mode logic. This approach requires a voltage-output P channel FET (PMOSFET) to generate an output signal from the input signal. Each FET has an internal source current, which reduces the source voltage and boosts the output voltage. This amplification is referred to as the current-gain of the PMOSFET. The MC75174BPG uses current-mode logic to convert and amplify the TTL/CMOS signal into the LVDS signal.

The MC75174BPG is designed to operate between two common-mode voltage levels, usually between 0V and 1.8V. For instance, a backup battery voltage of 1.8V can be used to power the MC75174BPG. Moreover, it also features lower power consumption in shutdown mode, allowing only a minimal amount of power to be directed to the device when not in use.

The MC75174BPG is an ideal product for applications where speed, low power consumption, and balanced signals are all a priority. Its speed and signal clarity make it suitable for system applications that require long data runs, and its low-power consumption in shutdown mode is especially beneficial for applications that require a high degree of reliability. And because of its hot-swap support, it can also be used in applications where system components may need to be removed or replaced quickly and easily.

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