参数资料
型号: MICRF501BLQ TR
厂商: Micrel Inc
文件页数: 17/18页
文件大小: 0K
描述: TXRX SGL 300-600MHZ 44-LQFP
标准包装: 1,000
频率: 300MHz ~ 600MHz
数据传输率 - 最大: 128kBaud
调制或协议: FSK
应用: 遥控,遥测
功率 - 输出: 12dBm
灵敏度: -105dBm
电源电压: 2.5 V ~ 3.4 V
电流 - 接收: 8mA
电流 - 传输: 45mA
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: 44-LQFP
包装: 带卷 (TR)
其它名称: MICRF501BLQTR
MICRF501BLQTR-ND
MICRF501
Example 2. f RF = 434.245MHz, f RF = 10.00MHz. FSK modu-
lation is applied to the VCO.
Binary form: (MSB to the left):
Tx: 011011 011011 000010001111
Micrel
Tx
Rx
Tx
Rx
Tx
Rx
A1
27
27
RxFilt
0
0
Ref6
0
0
A0
27
27
Pa2
1
1
Ref5
0
0
N1
143
143
Pa1
1
1
Ref4
0
0
N0
143
143
Pa0
1
1
Ref3
0
0
M1
106
106
Gc
1
1
Ref2
0
0
M0
106
106
ByLNA
0
0
Ref1
0
0
000010001111 0001101010 0001101010
011110000000001100000011
Rx: 011011 011011 000010001111
000010001111 0001101010 0001101010
011110000000001100000001
With modulation applied to the VCO, A, N and M values
corresponding to the receive frequency have to be found. The
same set of A, N and M values are used in all modes.
Programming After Battery Reset
In order to ensure a successful programming after VDD has
been zero volts, the PDEXT needs to be kept low during the
Ref0
Cpmp1 Cpmp0
Fc1
Fc0
OutS2
first programming sequence. This can be done by a seperate
I/O-line from a microcontroller, or a RC circuit on the PDEXT
Tx
Rx
Tx
Rx
0
0
OutS1
0
0
0
0
OutS0
0
0
1
1
Mod1
0
0
1
1
Mod0
0
0
0
0
RT
1
0
0
0
Pu
1
1
pin to the VDD (a capacitor between PDEXT and ground and
a resistor between PDEXT and VDD). Using the latter method,
R and C values need to be chosen so that the voltage on the
PDEXT pin is lower then VDD/2 when the control word is
loaded into the parallel register. (See Figure 10.)
March 2003
17
MICRF501
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