AM26LV31CNSR

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The AM26LV31CNSR is an integrated component with interfaces for drivers, receivers, and transceivers, providing possible applications and working principles of communication systems. It consists of two identical ST (Slave Terminal) data inputs and outputs, capable of receiving and transmitting data, two independent Rx (Fiber-optic receiver) inputs, and two Tx (Fiber-optic transmitter) outputs. It is capable of converting optical to electrical signals and vice-versa. The optical ports use 850 nm Vertical Cavity Surface Emitting Lasers (VCSEL) as the light emitting devices.

The AM26LV31CNSR is a suitable component for dual-port applications, providing data transmission over a single optical fiber. The device supports full-duplex operation and SPI protocol for data flow control. It ensures data transmission rate up to 10 Mbps for 12 km distances with a 2 mm fiber on a 62.5 mm core fiber. The device supports integrated termination and surge protection for 2-wire data transmission. It provides inherent timing for serial synchronous transmission.

The device provides various modes of data transfer that allow flexible method of data communications. In the serial synchronous transfer mode, it supports double data rate (DDR) operation at 10 Mbps/5 Mbps, 4 Mbps/2 Mbps, 1 Mbps/500 Kbps, 250 Mbps/125 Kbps, 162.5 Kbps/81.25 Kbps, 62.5 Kbps/31.25 Kbps, and 32 Mbps/0.8 Mbps. It supports half duplex operation (full duplex transmission) in multiple modes. For example, in the 8B/10B mode, the bi-directional data transfer rate is 10 Mbps/1 Mbps; in the byte mode, bi-directional data transfer rate is 4 Mbps/500 Kbps; in the low speed transmission mode, bi-directional data transfer is 500 Kbps/125 Kbps.

The AM26LV31CNSR has a flow control input used for controlling the direction of the data transmission. This can be used for a variety of applications such as communication systems, industrial automation, and medical equipment. In addition, it provides differential voltage and power supply monitoring, high speed differential clock, an I/O enable function, and an electrical short-circuit detection circuit. The device offers a high level of system integration for applications requiring full duplex data transmission. It also supports a wide range of external components, such as inductors, capacitors, resistors, and transistors.

The working principle of the AM26LV31CNSR consists of: first, when the power supply voltage is applied, the receiver receives the data in the form of optical signals; secondly, the receiver demodulates the optical signals and converts them into electrical signals; then the demodulated data is filtered using an LPF filter; after filtering, the demodulated data is sent to the dual-port driver with a differential output; the two sides of the differential output provides bipolar drive with inverted signals to the transceiver. The transceiver processes the data and then transmits the data to the slave terminal in the format specified by the user. The slave terminal then sends the data back to the transceiver, which processes the data and sends it back to the dual-port driver. The receiver receives the data from the dual-port driver, converts it back to the optical signals and then the data is sent back to the slave terminal.

The AM26LV31CNSR is a cost-effective and efficient device, providing complete two-way communication with a single fiber. It provides excellent performance in high data rate optical communication systems, and offers flexibility for various applications. Thanks to its easy-to-use design and user-friendly interface, the device can be used in various digital systems, providing reliable performance and data transmission.

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