AT86RF212 Atmel Corporation, AT86RF212 Datasheet - Page 115
AT86RF212
Manufacturer Part Number
AT86RF212
Description
Manufacturer
Atmel Corporation
Specifications of AT86RF212
Max. Operating Frequency
0 MHz
Crypto Engine
AES
Operating Voltage (vcc)
1.8 to 3.6
Frequency Band
700/800/900MHz
Max Data Rate (mb/s)
1
Antenna Diversity
No
External Pa Control
Yes
Power Output (dbm)
10
Receiver Sensitivity (dbm)
-110
Receive Current Consumption (ma)
9.0
Transmit Current Consumption (ma)
18 at 5dBm
Link Budget (dbm)
120
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8168B-MCU Wireless-03/09
图 7-12 AVREG 简要示意图
内置数字电压调节器的简要示意图如图 7-13 所示。
图 7-13. DVREG 简要示意图
电源电压,睡眠模式下的情况就是如此(参看图 7-13) 。如果 AT86RF212 进入睡眠模式,DVDD
电压将下降至 1.5V(标准值) ,并存储所有配置寄存器值。
低功率电压调节器常开。因此其偏置电流即是睡眠模式中的泄露电流,约为 100nA(标准值)。
低功率电压调节器(AVREG.DVREG)需要旁路电容以便稳定操作。旁路电容值决定了电压调节
器建立时间。旁路电容应置于尽量靠近引脚的位置,并在最短的路径内接地(见表 3-1) 。
“数字电压调节器”中的“低功率电压调节器”模块在电压调节器不可用时继续维持 DVDD 的
带隙电压
基准
电压调节器
带隙电压基准
p
1 . 25 V
1 . 25 V
EVDD
DEVDD
AVDD
低功率电压调节器
BIAS
数字电压调节器
AT86RF212
DVDD
115
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