BT820

Series:	--
Part Status:	Active
Function:	Transceiver, Bluetooth
Modulation or Protocol:	Bluetooth v4.0, Dual Mode
Frequency:	2.402GHz ~ 2.48GHz
Applications:	Industrial
Interface:	USB
Sensitivity:	-89dBm
Power - Output:	8dBm
Data Rate (Max):	3Mbps
Features:	--
Voltage - Supply:	--

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BT820 RF Receiver, Transmitter, and Transceiver Finished Units

The BT820 is a high-performance RF receiver, transmitter, and transceiver finished unit. It is based on a highly integrated transceiver IC that incorporates both a low power consumption receiver and a transmitter. The BT820 can be used in a range of applications including industrial, automotive, and wireless communication.

Features

The BT820 includes a number of features that make it suitable for a wide range of applications. These include:• Broadband operation – 20MHz to 200MHz• High sensitivity for long range performance• High dynamic range for interference immunity• Low power consumption• Built-in power amplifier• Integrated voltage regulator and low noise amplifier• Adjustable power output up to +25dBm• Adjustable gain control• External antenna and RF port

Applications

The BT820 is designed for use in a variety of applications, including:• Wireless communications• Portable radio devices• Multi-channel radio devices• AM/FM receivers• Wide area networks• Automotive telematics• Industrial radio systems

Working Principle

The BT820 operates using a direct conversion architecture. This means that signals received from the antenna pass through a low noise amplifier (LNA), a downconverter, and then a mixer before being digitized for further processing. The mixer combines the incoming signal with the output from a voltage controlled oscillator (VCO), outputting a signal at the intermediate frequency. The BT820 also includes a power amplifier for the transmitter. The received signal is upsampled and then passed through a digital filter before being output at the desired frequency. It can be adjusted to the required power level with a power control loop. This loop is used to monitor the output power, and then adjusts the power amplifier gain accordingly to maintain the desired power level.The BT820 is designed for use with a 50 ohm antenna port, which is connected through the PA port of the device. The RF port allows for the connection of an external antenna, allowing for increased range and performance.

Conclusion

In conclusion, the BT820 is a high-performance RF receiver, transmitter, and transceiver finished unit. It features a low power consumption receiver, a high dynamic range transmitter, and a wide range of features that make it suitable for a variety of applications. It operates using a direct conversion architecture, with a power control loop to ensure stable output power. It is designed for use with a 50 ohm antenna port, and can be connected to an external antenna for increased range and performance.

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