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LR680R
LR680R ASK/OOK , 。、、、、、 、、, , 。
–112 dBm(OOK ); FCC/ETSI 300MHz~440MHz; 2V ~ 5.5V 2mA(315MHz) 2.5mA(433.92MHz) ;
SOP8
IC LR45B
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(8Pin) 1 2 3 4
VSSRF ANT VDDRF CTH
5 DOUT 6 SHUT 7 CAGC 8 OSC
,, 120kΩ, , . :47nF~ 1μF ,CMOS , 0, VDD,, AGC , ,, ,
:VVDD=5V,25ºC,CAGC=4.7μF,CTH=1μF, 2 kb/s。
Symbol Parameter VVDD Supply Voltage
Condition
Min Typ 25
IVDD Operatiing Current
fRF = 315 MHz
fRF = 433.92 MHz fRF Operating Frequency range
Receiver Sensitivity
OOK modulation
2 2.5 300 –112
Max Units 5.5 V
2.5 mA 2.8 mA 440 MHz
dBm
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fIF IF Center Frequency
fRF = 315 MHz
fBW IF -3dB Bandwidth
fRF = 433.92 MHz
Z11 Input Impedance of ANT Operating at 315 MHz
Pin
Operating at 433.