DS21552LN

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Interface – Telecom covers a wide range of devices, communication protocols and topologies used in telecommunication, such as DSLAMs, fiber optic transceivers, embedded telecommunication systems, and wireless technologies. The purpose of those technologies is to enable data and voice transmission over a communication network. To meet these requirements, telecom manufacturers design robust components and equipments, with the aim to increase the speed, efficiency and reliability in transmission.One of such components is the DS21552LN, a long range non-encryption non-compression distributed servo amplifier from Delta Electronics. The DS21552LN is a lightweight amplifier, point-to-point radio link designed for data, voice, and video transmission. It is suitable for applications such as internet connection, point-to-point digital audio transmissions, and direct broadband connection.The DS21552LN is built with software configurable level variables and frequency selective switching, making it especially suitable for long-distance connections. The main features of DS21552LN are its single-ended architecture, high sensitivity and noise level performance, low noise interference, and remote control and monitoring capabilities. All these assets enable its use in high data rate applications as well as in both outdoor and indoor environments.The DS21552LN also has a wide range of applications. It can be used in backhaul networks over large distances, such as long-distance Fiber-To-The-Home (FTTH) and Digital Subscriber Line (DSL) networks; in audio and video links for remote broadcasting and IPTV; in surveillance systems for security purposes; and in satellite communication for the transmission of small data packets.

The working principle of the DS21552LN is based on a distributed amplifier structure, meaning that the gain is split over several amplification stages. This allows for a better half-duplex performance and eliminates the need for manual gain adjustments. The amplifier is designed as a single-ended, low-power amplifier with a low noise floor, providing a high level of sensitivity at the output node.

The main components of the amplifier are its power amplifier, VCA input module, Oscillator and DAC. The power amplifier is responsible for providing the necessary gain and power to the RF output. The VCA input module is responsible for controlling the incoming digital signal levels, while the oscillator is used to calibrate the amplifier frequency. The DAC module is used to convert digital input signals into analog signals.

Once the signal is amplified, it is sent to the receiver unit, where it is received and converted back into its original form. This distributed servo amplifier is ideal for data rates from 15 to 52 Mbps and up to 10 km. All these features make the DS21552LN an ideal component for telecom applications.

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