DS26C31TMX Integrated Circuits (ICs)

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The DS26C31TMX is a quad-channel low-power differential line transceiver wired in a very low offset configuration, offering a low power supply current, high speed operation and low data rate operation. It is designed for applications requiring up to four independent 4-wire point-to-point interfaces with increased bus noise immunity and data rate capability. DS26C31TMX features very low bias voltage levels, low noise immunity, and high data rate capability, making it ideal for applications such as server and storage applications as well as industrial automation, telecommunications, and computer networking.

The DS26C31TMX has four differential line transceivers, each transceiver having a pair of line outputs and a pair of line inputs. All four differential inputs are provided with a minimum common mean mode voltage of 0.15V and a maximum input signal swing of 1.8V.

The DS26C31TMX supports a variety of signal modes and options, including differential signaling with minimum glitch and ground bounce, as well as CML (Current Mode Logic) signaling with no ground bounce and identical propagation delay for both options. The transceiver supports logic levels ranging from 2.0V to 5.5V with a maximum current draw of 20mA per channel.

The transceiver also has provisions for three different power saving modes: low power disable, power-down, and power-off. These features allow for improved system power efficiency. The transceiver has an enable/disable input for each channel which allows the user to selectively enable/disable each channel individually.

The DS26C31TMX has a built-in ESD protection circuit which protects each I/O pin from electrostatic discharge up to 8kV. The device also includes a non-volatile programmable Register which allows the user to set a predetermined data rate or enable/disable special features. The register may be programmed via a simple serial bus command.

In terms of applications, the DS26C31TMX is suited for applications requiring fast, reliable, and low-power transfer of digital data over differential lines such as RS-422/RS-485 communication systems and computer networks such as Ethernet, USB, Firewire, Fiber Channel, Wan, and HDTV. In addition, it can also be used in a variety of industrial automation, telecommunications, automotive, audio/video, and measurement equipment.

In terms of working principle, the DS26C31TMX controls the output of differential line transceivers by using differential input/output connections. The outputs of the differential line transceivers are connected to the line receiver inputs. When a logic ‘1’ is present at the output of a differential line transceiver, its output line will be driven high. When a logic ‘0’ is present at the output of a differential line transceiver, its output line will be driven low. This differential line driving operation ensures fast transmission speeds, improved noise immunity, and prevention of ground bouncing, thus ensuring reliable data transmission in harsh environments.

In conclusion, the DS26C31TMX is a low-power, high-speed differential line transceiver designed for up to four independent 4-wire point-to-point interfaces. It features a variety of features such as low power operation, ESD protection, low noise immunity, and high data rate capability, making it suitable for a variety of digital communications applications. It also has provisions for three different power saving modes, allowing for improved system power efficiency. Finally, the device’s differential line driving operation ensures fast transmission speeds, improved noise immunity, and prevention of ground bouncing, thus ensuring reliable data transmission in harsh environments.

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