ESPRIT-4SL4

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The ESPRIT-4SL4 is a highly integrated Radio Frequency (RF) receiver, transmitter, and transceiver finished unit that functions as a Single Chip Transceiver (SCT) RF communications module. The ESPRIT-4SL4 is ideal for embedded systems in which Bluetooth-enabled technology is desired. The ESPRIT-4SL4 module delivers near-field communications to a host device, improving user-friendliness and enhancing the network’s security. It includes a 2.4 GHz transceiver, receive and transmit baseband, and a signal processor unit for host communications.

The ESPRIT-4SL4 transceiver operates within the 2.4 GHz industrial, scientific and medical (ISM) frequency band. The integrated transceiver uses a direct conversion architecture and supports E-GPRS and GMSK modulation types. The unit also supports frequency hopping, enabling more robust communication between devices. Additionally, the module is built with a noise and more suppression feature that enables operation with external devices, including antennas, without interference.

To ensure reliable signal strength and data integrity, the ESPRIT-4SL4 transmitter and receiver are engineered for use with antennas. The unit’s integrated cable port allows direct connection to an external antenna. This port can also be used to transmit antenna command signals during operation. Additionally, the unit features two diplexer filters that offer superior isolation and noise suppression.

The ESPRIT-4SL4 also has a full range of power management functions to maintain a consistent operating environment in low-voltage, battery-powered applications. The device’s dynamic power management feature adjusts the transmit and receive power levels to adapt to varying environmental conditions. This feature optimizes runtime operation, enabling it to reduce current consumption and improve data transfer rate.

The ESPRIT-4SL4 receiver operates within the four available frequency bands of 2.4-2.4835 GHz. The receiver supports both half- and quarter-duplex modes and comes with latching Bluetooth and TDMA protocol support. The receiver features an AGC (Automatic Gain Control) circuit that helps to detect the signal power and adjust the receiver gain accordingly. The unit also includes a calibration circuit to reduce the IF (Intermediate Frequency) residual phase noise. It integrates a low-noise amplifier (LNA) and a mixers switch for improving the signal-to-noise ratio.

The ESPRIT-4SL4 transmitter includes a power amplifier, a linear amplifier, and a mixer for transmitting data within the 2.4-2.4835 GHz frequency band. The transmitter supports both GFSK and DBPSK modulation types, and the integrated power amplifier enables the maximum transmit power level to reach +30dBm. To ensure reliable communications with external devices, the device integrates a noise and more suppression feature that helps reduce interference and improve signal clarity.

The ESPRIT-4SL4 is an optimal solution for reliable RF communications in embedded systems. Its easy-to-use design enables it to fit into any application without requiring additional set-up. The full range of features makes it an excellent choice for low-power, battery-powered applications. By combining its integrated transceiver, receiver, and transmitter, the ESPRIT-4SL4 provides complete coverage and superior signal strength to ensure reliable communications.

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