参数资料
型号: AT86RF212-ZUR
厂商: Atmel
文件页数: 94/172页
文件大小: 0K
描述: TXRX AVR LOW PWR/VOLTAGE 32PQFN
标准包装: 1
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: 标准包装
其它名称: AT86RF212-ZURDKR
Figure 7-2. High Date Rate Frame Structure
Due to the overhead caused by the PPDU header and the FCS, the effective data rate
is less than the selected data rate, depending on the length of the PSDU. A graphical
representation of the effective data rate is shown in Figure 7-3.
Figure 7-3. Effective Data Rate of the O-QPSK Modes
Netto bit rate B
900
1000 kbit/s
800
700
600
500
400
300
200
100
500 kbit/s
250 kbit/s
400 kbit/s
200 kbit/s
100 kbit/s
0
0
20
40
60
80
100
120
PSDU length in octets
Consequently, high data rate transmission is useful for large PSDU lengths due to the
higher effective data rate, or in order to reduce the power consumption of the system.
7.1.4.3 High Date Rate Mode Options
Reduced Acknowledgment Time
If register bit AACK_ACK_TIME (register 0x17, XAH_CTRL_1) is set, the
acknowledgment time is reduced to the duration of 2 symbol periods for 200 and 400
kbit/s, and to 3 symbol periods for 500 and 1000 kbit/s, refer to Table 5-24. Otherwise, it
defaults to 12 symbol periods according to IEEE 802.15.4.
Receiver Sensitivity Control
The different data rates between PPDU header (SHR and PHR) and PHY payload
(PSDU) cause a different sensitivity between header and payload. This can be adjusted
by defining sensitivity threshold levels of the receiver. With a sensitivity threshold level
set, the AT86RF212 does not synchronize to frames with an RSSI level below that
threshold. Refer to section 7.2.3 for a configuration of the sensitivity threshold with
register 0x15 (RX_SYN).
94
AT86RF212
8168C-MCU Wireless-02/10
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