参数资料
型号: AT86RF212-ZUR
厂商: Atmel
文件页数: 141/172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
AT86RF212
For transmission and reception, the antenna defined by register bits ANT_CTRL
(register 0x0D, ANT_DIV) is selected.
Figure 9-6. Antenna Diversity – Block Diagram
9.3.3 Register Description
Register 0x0D (ANT_DIV) :
The ANT_DIV register controls Antenna Diversity.
Table 9-11. Register 0x0D (ANT_DIV)
Bit
Name
Read/Write
Reset Value
Bit
Name
Read/Write
Reset Value
7
Reserved
R
0
3
Reserved
R/W
0
6
Reserved
R
0
2
ANT_EXT_SW_EN
R/W
0
5
Reserved
R
0
1
ANT_CTRL[1]
R/W
0
4
Reserved
R
0
0
ANT_CTRL[0]
R/W
1
? Bit 7:3 – Reserved
? Bit 2 – ANT_EXT_SW_EN
If enabled, pin 9 (DIG1) and pin 10 (DIG2) become output pins and provide a differential
control signal for an antenna diversity switch. The selection of a specific antenna is
done according to register bits ANT_CTRL.
If RX Frame Time Stamping (refer to section 9.5) is used in combination with Antenna
Diversity, DIG1 is used for Antenna Diversity and DIG2 is used for RX Frame Time
Stamping. AT86RF212 does not provide a differential control signal in this case, see
Figure 3-2.
If the register bit is set, the control pins DIG1/DIG2 are activated in all radio transceiver
states as long as register bit ANT_EXT_SW_EN is set. If the AT86RF212 is not in a
receive or transmit state, it is recommended to disable register bit ANT_EXT_SW_EN
to reduce the power consumption or avoid leakage current of an external RF switch,
especially during SLEEP state. If register bit ANT_EXT_SW_EN = 0, output pins DIG1
and DIG2 are internally connected to digital ground.
141
8168C-MCU Wireless-02/10
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