MAX14978ETO+

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MAX14978ETO+ is a special purpose interface used in analog switches. It is a low-power, four-to-six channel mux/demux with integrated level shift circuitry. This family of devices has been designed in order to reduce the design complexity associated with interfacing between devices with either a 3.3V or 5V supply. The MAX14978ETO+ is specified for operation over the temperature range of -40℃ to +85℃.

The MAX14978ETO+ is designed to provide a routed connection to an external dual in-line cable or a daughter board interface. The device offers four channels that are electrically isolated, making them ideal for switching USB- or LVDS-based video. The routing is such that four channels can be connected from a low voltage differential signaling (LVDS) port to a USB port, or from any two of the four ports to each other.

The MAX14978ETO+ can switch up to four channels that bridge the two sides of the LVDS. The MAX14978ETO+ is a signal-level controlled switch that has true zero-insertion-loss operating characteristics. It is compatible with single-ended AC and DC signals and does not require manual control.

The MAX14978ETO+ signal routing is controlled with two control signals (EN_Lx and SEL_Lx). When the control signals are asserted, the selected signal is routed to the destination port. The MAX14978ETO+ features logic-level control and convenient zero-insertion-loss switching.

When EN_Lx and SEL_Lx are both logic-low, no signal is routed. The device then remains in a low-power mode (quiescent mode) and supports both single-ended and differential signals. In addition, the MAX14978ETO+ has a TTL-level input pin (SKIP_Lx), which, when asserted, will skip the logical control flow and route the signal.

The MAX14978ETO+ has an integrated level shifter circuit, which is capable of providing voltage translation from as low as 3.3V to as high as 5V. This feature allows the device to be interfaced between two devices which are not necessarily using the same voltage level. The level shifter is implemented using standard CMOS integration techniques, and hence has very low power consumption.

The MAX14978ETO+ also supports high-speed switching between ports. It is capable of routing signals up to and beyond 6 Gbps, and is suitable for data rates such as USB 3.0, DisplayPort 1.2, and HDMI 2.0. The device has an ultra-low differential nonlinearity (DNL) of +/- 0.07 LSB, which enables it to accurately route high-speed signals in future higher-data-rate standards.

The two control signals, EN_Lx and SEL_Lx, are used to control the signal routing of the MAX14978ETO+. When both signals are asserted, the selected signal is routed to the destination port. The device will also accept a TTL-level input pin (SKIP_Lx), which, when asserted, will bypass the logical control flow and route the signal.

Overall, the MAX14978ETO+ is an efficient, low-power, four-to-six channel mux/demux with integrated level shift circuitry that is designed to reduce the design complexity associated with interfacing between LVDS and USB devices with either a 3.3V or 5V supply. It is suitable for applications that require high-speed data transfers and offers superior isolation and low-power operation. The device also has an integrated level shifter which allows for easy integration into a variety of different interface applications.

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