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RFM23 参数 Datasheet PDF下载

RFM23图片预览
型号: RFM23
PDF下载: 下载PDF文件 查看货源
内容描述: ISM收发器模块 [ISM Transceiver Module]
分类和应用: ISM频段
文件页数/大小: 152 页 / 3516 K
品牌: HOPERF [ HOPERF ]
 浏览型号RFM23的Datasheet PDF文件第9页浏览型号RFM23的Datasheet PDF文件第10页浏览型号RFM23的Datasheet PDF文件第11页浏览型号RFM23的Datasheet PDF文件第12页浏览型号RFM23的Datasheet PDF文件第14页浏览型号RFM23的Datasheet PDF文件第15页浏览型号RFM23的Datasheet PDF文件第16页浏览型号RFM23的Datasheet PDF文件第17页  
RFM23  
2.1. Operating Modes  
The RFM23 provides several modes of operation which can be used to optimize the power consumption of the  
device application. Depending upon the system communication protocol, the optimal trade-off between the radio  
wake time and power consumption can be achieved.  
Table 9 summarizes the modes of operation of the RFM23. In general, any given mode of operation may be  
classified as an Active mode or a Power Saving mode. The table indicates which block(s) are enabled (active) in  
each corresponding mode. With the exception the Shutdown mode, all can be dynamically selected by sending the  
appropriate commands over the SPI in order to optimize the average current consumption. An ―X‖ in any cell  
means that, in the given mode of operation, that block can be independently programmed to be either ON or OFF,  
without noticeably affecting the current consumption. The SPI circuit block includes the SPI interface and the  
register space. The 32 kHz OSC circuit block includes the 32.768 kHz RC oscillator or 32.768 kHz crystal  
oscillator, and wake-up timer. AUX (Auxiliary Blocks) includes the temperature sensor, general purpose ADC, and  
low-battery detector.  
Table 9. Operating Modes  
Circuit Blocks  
Mode  
32 kHz  
OSC  
30 MHz  
XTAL  
Name  
Digital LDO  
SPI  
AUX  
PLL  
RA  
RX  
I
VDD  
OFF  
Shutdown  
OFF  
OFF  
OFF  
OFF  
OFF  
OFF OFF  
10 nA  
(Register contents lost)  
Standby  
Sleep  
ON  
ON  
ON  
ON  
OFF  
ON  
X
OFF  
X
OFF  
OFF  
OFF  
ON  
OFF  
OFF  
OFF  
OFF  
OFF OFF 400 nA  
OFF OFF 800 nA  
Sensor  
Ready  
ON  
X
OFF OFF  
1 μA  
ON  
X
OFF OFF 600 μA  
(Register contents retained)  
Tuning  
Transmit  
Receive  
ON  
ON  
ON  
X
X
X
X
X
X
ON  
ON  
ON  
ON  
ON  
ON  
OFF OFF 9.5 mA  
ON OFF 28 mA*  
OFF ON 18.5 mA  
*Note: 28 mA at +13 dBm.  
13  
Tel: +86-755-82973805  
Fax: +86-755-82973550  
E-mail: sales@hoperf.com  
http://www.hoperf.com