TI CC2541 2.4GHz藍牙低功耗連接解決方案

發布時間：2012-2-28 21:56 發布者：1770309616

關鍵詞： CC2541 , TI , 藍牙

TI公司的CC2541是2.4GHz藍牙低功耗系統級芯片(SoC),支持250kbps, 500kbps, 1Mbps和2Mbps數據速率,具有極好的連接預算,應用時不外接前端,輸出功率可編程到0dBm, 1Mbps時的接收靈敏度為-94dBm,主要用在2.4GHz藍牙低功耗系統,個人2.4GHz系統,人機接口如鍵盤,鼠標和遙控等,體育和休閑設備,手機附件和消費類電子.本文介紹了CC2541主要特性,方框圖, 應用電路圖和CC2541評估模塊主要特性,電路圖和材料清單以及采用TPS62370的CC2541EM電源電路圖和材料清單.

The CC2541 is a power-optimized true system-on-chip (SoC) solution for both low energy and proprietary 2.4-GHz applications. It enables robust network nodes to be built with low total bill-of-material costs. The CC2541 combines the excellent performance of a leading RF transceiver with an industry-standard enhanced 8051 MCU, in-system programmable flash memory, 8-KB RAM, and many other powerful supporting features and peripherals. The CC2541 is highly suited for systems where ultralow power consumption is required. This is specified by various operating modes. Short transition times between operating modes further enable low power consumption.

The CC2541 is pin-compatible with the CC2540 in the 6-mm × 6-mm QFN40 package, if the USB is not used on the CC2540 and the I2C/extra I/O is not used on the CC2541.

CC2541主要特性:

CC2541 WITH TPS62730

• TPS62730 is a 2-MHz Step-Down Converter With Bypass Mode

• Extends Battery Lifetime by up to 20%

• Reduced Current in All Active Modes

• 30-nA Bypass Mode Current to Support

• RF Performance Unchanged

• Small Package Allows for Small Solution Size

• CC2541 Controllable

CC2541應用:

• 2.4-GHz Bluetooth low energy Systems

• Proprietary 2.4-GHz Systems

• Human-Interface Devices (Keyboard, Mouse, Remote Control)

• Sports and Leisure Equipment

• Mobile Phone Accessories

• Consumer Electronics

圖1.CC2541方框圖

圖2.CC2541應用電路圖

CC2541評估模塊

The CC2541 Evaluation Module Kit contains two CC2541 Bluetooth low energy Evaluation Modules, which can be used either as standalone modules (requires a power source and a simple carrier board like the SoC Battery Board or connected to e.g. the SmartRF05EB Evaluation Boards (included in the CC2540DK) for full control from the PC.

The evaluation modules can be used as a reference board for prototyping and for verifying the performance of the CC2541 RF IC.

CC2541評估模塊主要特性:

The CC2541EMK includes:

  2 x CC2541EM Evaluation Modules

  2 x 2.4 GHz Antennas

  Documentation

圖3.CC2541評估模塊外形圖

注:CC2541評估模塊要和CC2540DK開發套件的SmartRF05EB一起使用.

圖4.CC2541評估模塊電路圖
CC2541評估模塊材料清單見:

圖5.CC2541評估模塊采用TPS62370的電源電路圖

采用TPS62370的CC2541EM電源材料清單見: