BCM20738A1KFBG

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BCM20738A1KFBG is one of the leading RF transceiver integrated circuits (ICs), developed by Broadcom for Bluetooth low energy applications. It is highly integrated with dual-mode Bluetooth v4.1 and v4.2 protocol stack support, giving designers the flexibility to achieve the optimum low-power application performance for battery-powered smart home and wearable applications. The wireless range of the BCM20738A1KFBG can reach up to 120 meters in less dense environments.

The BCM20738A1KFBG has an impressive feature set for advanced Bluetooth applications. It is equipped with an embedded Accelerometer, Gyroscope, Magnetometer, DC-DC switch, and voltage regulator, which supports a wide range of battery supply capacitance. It also boasts integrated audio support for audio streaming, codecs, and low latency voice communication. The dual-mode protocol stack support provides high-speed data transfer and an adapted wire protocol for low-power mission critical applications.

BCM20738A1KFBG also features integrated security features such as encryption algorithms, secure key storage, and mutual authentication to protect against data theft and unauthorized access. Furthermore, the chip supports high-speed data rates of 1 Mbps to 10 Mbps and also offers a frequency range of 2402 MHz to 2480 MHz.

The BCM20738A1KFBG has a wide variety of applications, from smart home appliances, wearables, and sports and fitness equipment to industrial IoT applications. In addition to its low-power and low-cost features and design advantages, it also offers a range of connectivity features such as Wi-Fi Direct®, WPA2™, BT4.2™, and dual-mode BT4.1 & BT4.2.

The working principle of the BCM20738A1KFBG is based on the Bluetooth Low Energy (BLE) protocol. This protocol is designed to provide low-power communication between devices. It is used to wirelessly transmit information between two or more devices, such as a mobile phone and a wearable fitness tracker. The BCM20738A1KFBG uses a master/slave architecture, where the master is the device that initiates the connection with the slave device. The master device can send and receive data using the Bluetooth radio, and the slave device can only receive data.

The BCM20738A1KFBG supports multiple roles, such as controller, observer, broadcaster, and peripheral. The controller is responsible for managing the connection and handling the data, the observer is responsible for listening to the data that is transmitted, the broadcaster sends out messages, and the peripheral is the device that receives messages. The BCM20738A1KFBG also has two power profiles: an active mode and a low-power mode, where the chip can switch between these modes depending on the current application.

To ensure reliable communication between devices, the BCM20738A1KFBG uses a range of data link layers. The lower data link layer, called the Logical Link Control and Adaptation Protocol (L2CAP), controls the connection between devices and ensures data integrity. The higher data link layer, the ATT (Attribute Protocol) is responsible for storing and retrieving data from a remote device. The ATT is also used to communicate with the Bluetooth profile layer, which is responsible for managing the device\'s profile settings.

The BCM20738A1KFBG also includes a range of radio frequency (RF) aspects that ensure wireless communication is of the highest quality. These aspects include the modulation type, spectrum occupancy, hopping mechanism, and the physical layer construction. The BCM20738A1KFBG is designed with a clever bit rate coordination algorithm, which dynamically allocates bit rate resources and detects interfering signals.

Through all the features and capabilities, the BCM20738A1KFBG provides a reliable and low-power solution for Bluetooth low energy applications, ranging from smart home and wearables to industrial IoT. Its impressive feature set allows designers to develop power efficient and secure applications, while the working principles provide robust communication between devices.

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