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AN4387蓝牙低能耗控制器产品数据
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2014-01-23
陈贝贝
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Introduction
BlueNRG is a very low power Bluetooth low energy (BLE) single mode network processor, compliant with Bluetooth specifications core 4.0. The BlueNRG can act as master and slave.
Bluetooth low energy technology operates in the same spectrum range (2400 - 2483.5 MHz, ISM band) as classical Bluetooth technology, but uses a different set of channels. Instead of Bluetooth technology's 79 channels of 1 MHz band, the low energy technology has 40 channels (37 data channels + 3 advertising channels) of 2 MHz band. Within the channel, data is transmitted using GFSK (Gaussian Frequency Shift Modulation). The bit rate is 1 Mbit/s, and the maximum transmit power is 10 mW (10 dBm).
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