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LR680R Dataheets PDF



Part Number LR680R
Manufacturers Ling Chengxin
Logo Ling Chengxin
Description ASK / OOK wireless receiving chip
Datasheet LR680R DatasheetLR680R Datasheet (PDF)

www.lchstar.com LR680R LR680R ASK/OOK , 。、、、、、 、、, , 。  –112 dBm(OOK );  FCC/ETSI  300MHz~440MHz;  2V ~ 5.5V  2mA(315MHz) 2.5mA(433.92MHz)  ; SOP8 IC LR45B www.lchstar.com (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 .

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www.lchstar.com LR680R LR680R ASK/OOK , 。、、、、、 、、, , 。  –112 dBm(OOK );  FCC/ETSI  300MHz~440MHz;  2V ~ 5.5V  2mA(315MHz) 2.5mA(433.92MHz)  ; SOP8 IC LR45B www.lchstar.com (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 www.lchstar.com 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 433.92 MHz Spurious Reverse Isolation ANT Pin AGC Attack to Decay Ration ZOSC Reference Oscillator Input Impedance ZCTH CTH Source Impedance VIH Input High Voltage SHUT Pin VIL Input Low Voltage SHUT Pin IOUT Output Current DOUT Pin : 0.86 1.185 0.5 21.78–j335 MHz MHz kHz 17.25–j235 30 1:10 μVrms 300 kΩ 120 0.8 20 kΩ VVDD 0.2 VVDD μA SYN480 5V 2.5mA -106dBm 5V 2mA 《-107dBm LR680R/LR45B 2-5V 2mA -112dBm 》20dB 3dBm : www.lchstar.com 315Mhz 433Mhz .


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