SN65LVDS104PWRG4

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SN65LVDS104PWRG4 application field and working principle

The SN65LVDS104PWRG4 is a quad-channel high-speed low-voltage differential signaling (LVDS) repeater for serial data transmission applications. It is designed to extend signal reach and drive signal loads over long line lengths using a Low-Voltage Differential Signaling (LVDS) logic that reduces signal crosstalk and optimizes system noise margin. The SN65LVDS104PWRG4 can be used in applications operating in temperature range of -40°C to +85°C.

The SN65LVDS104PWRG4 is compatible with IEEE 1596.3-1996 LVDS standards, which utilizes a pair of 20-mA (max) balanced outputs to provide transmission of data at speeds up to 400 Mbps over unshielded 25-Ω twisted-pair cables having a maximum line length of 15 m. The LVDS outputs operate with low voltage swings of 350 mV, minimizing cable power dissipation over the known benefits of minimizing EMI. Such features make the SN65LVDS104PWRG4 a suitable solution for many applications like portable computing, Flat-Panel Displays (FPDs), digital cameras, and electronic data processing.

The SN65LVDS104PWRG4 provides a maximum output swing of 350 mV between its two output lines, with one line providing the inverse signal of the other. It has operation enabling logic (EN) input, which is then synchronized to the control logic. The EN pin serves as a power-consumption control, which can shut down the IC when needed. In addition, the IC offers an internal IC power-down mode by providing an unused pin, effectively providing a simple EN pin. Additionally, the SN65LVDS104PWRG4 includes an output short-circuit protection circuit which will save circuit components in the event of a short circuit on one of the receiver inputs.

SN65LVDS104PWRG4 is composed of four differential channels. Each of the pairs of differential signals of the four channels are balanced, meaning they are both equal and opposite. This ensures a good signal transmission environment with a minimum of noise and crosstalk. The complementary signals also provide high impedance at the receiver side which is essential for long cable length applications. Each of the four channels is also individually powered and can be independently enabled/disabled by the enable pins.

The SN65LVDS104PWRG4 is ideal for applications such as Gigabit Ethernet and Fibre Channel implementations, as well as inter-system communications applications such as InfiniBand, FireWire, USB 2.0, FPD-Link and Serial ATA. With its high-speed, low-voltage differential signaling it is also suitable for flat panel displays, industrial automation, medical electronics, and military and aerospace applications.

In summary, the SN65LVDS104PWRG4 is a quad-channel high-speed low-voltage differential signaling repeater that provides high-speed transmission of data over unshielded 25-Ω twisted-pair cables. It is compatible with IEEE 1596.3-1996 LVDS standards, operates at up to 400 Mbps, and offers an operational temperature range of -40°C to +85°C. Its features make it suitable for a variety of high-speed serial data transmission applications and it can be used in applications such as Gigabit Ethernet, Fibre Channel, InfiniBand, FireWire, USB 2.0, FPD-Link, Serial ATA, flat panel displays, industrial automation, medical electronics, and military and aerospace applications.

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