参数资料
型号: AT86RF212-ZU
厂商: Atmel
文件页数: 93/172页
文件大小: 0K
描述: IC TXRX ZIGBE/802.15.4/ISM 32QFN
产品培训模块: MCU Wireless Solutions Product Line Introduction
标准包装: 2,450
频率: 700MHz,800MHz,900MHz
数据传输率 - 最大: 250kbps
调制或协议: 802.15.4 Zigbee,6LoWPAN,ISM
应用: ISM,ZigBee?
功率 - 输出: 10dBm
灵敏度: -110dBm
电源电压: 1.8 V ~ 3.6 V
电流 - 接收: 9.2mA
电流 - 传输: 25mA
数据接口: PCB,表面贴装
天线连接器: PCB,表面贴装
工作温度: -40°C ~ 85°C
封装/外壳: 32-VFQFN 裸露焊盘
包装: 托盘
AT86RF212
7.1.2 Configuration
The PHY mode can be selected by setting appropriate register bits of register 0x0C
(TRX_CTRL_2), refer to section 7.1.5. During configuration, the transceiver needs to
be in state TRX_OFF.
7.1.3 Symbol Period
Within IEEE 802.15.4 and, accordingly, within this document, time references are often
specified in units of symbol periods, leading to a PHY mode independent description.
Table 7-2 shows the duration of the symbol period. Note that for the proprietary High
Data Rate Modes, the symbol period is (by definition) the same as the symbol period of
the corresponding base mode.
Table 7-2. Duration of the Symbol Period
Modulation
BPSK
O-QPSK
PSDU Data Rate
[kbit/s]
20
40
100, 200, 400
250, 500, 1000
Duration of Symbol Period
[μs]
50
25
40
16
7.1.4 Proprietary High Data Rate Modes
The main features are:
? High data rates up to 1000 kbit/s
? Support of Basic and Extended Operating Mode
? Reduced ACK timing (optional)
7.1.4.1 Overview
The AT86RF212 supports alternative data rates of {200, 400, 500, 1000} kbit/s for
applications not necessarily targeting IEEE 802.15.4 compliant networks.
The High Data Rate Modes utilize the same RF channel bandwidth as the
IEEE 802.15.4-2006 sub-1 GHz O-QPSK modes. Higher data rates are achieved by
modified O-QPSK spreading codes having reduced code lengths. The lengths are
reduced by the factor 2 or by the factor 4.
For O-QPSK with 400 kchip/s, this leads to a data rate of 200 kbit/s (2-fold) and 400
kbit/s (4-fold), respectively.
For O-QPSK with 1000 kchip/s, the resulting data rate is 500 kbit/s (2-fold) and 1000
kbit/s (4-fold), respectively.
Due to the decreased spreading factor, the sensitivity of the receiver is reduced.
Section 10.7, parameter 10.7.1, shows typical values of the sensitivity for different data
rates. Note that the sensitivity values of the High Data Rate Modes are provided for a
maximum PSDU length of 127 octets.
7.1.4.2 High Data Rate Frame Structure
In order to allow robust frame synchronization, high data rate modulation is restricted to
the PSDU part only. The PPDU header (the preamble, the SFD, and the PHR field) are
transmitted with the IEEE 802.15.4-2006 O-QPSK rate of either 100 kbit/s or 250 kbit/s
(basic rates), see Figure 7-2.
93
8168C-MCU Wireless-02/10
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