RF12 Universal ISM Band FSK Transceiver

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Pin 6 Pin 7 <strong>RF12</strong> Transmit mode el=0 in Configuration Setting Command TX Data input - Transmit mode el=1 in Configuration Setting Command Connect to logic high - Receive mode ef=0 in Configuration Setting Command RX Data output RX Data clock output Receive mode ef=1 in Configuration Setting Command nFFS input FFIT output GENERAL DEVICE SPECIFICATION All voltages are referenced to V ss , the potential on the ground reference pin VSS. Absolute Maximum Ratings (non-operating) Symbol Parameter Min Max Units V dd Positive supply voltage -0.5 6 V V in Voltage on any pin (except RF1 and RF2) -0.5 V dd +0.5 V V oc Voltage on open collector outputs (RF1, RF2) -0.5 V dd +1.5 (Note 1) V I in Input current into any pin except VDD and VSS -25 25 mA ESD Electrostatic discharge with human body model 1000 V T st Storage temperature -55 125 oC Recommended Operating Range Symbol Parameter Min Max Units V dd Positive supply voltage 2.2 5.4 V V ocDC DC voltage on open collector outputs (RF1,RF2) V dd +1.5(Note2) V V ocAC AC peak voltage on open collector outputs (RF1,RF2) V dd -1.5(Note1) V dd +1.5 V T op Ambient operating temperature -40 85 ℃ Note 1: At maximum, V dd +1.5V cannot be higher than 7V. At minimum, V dd -1.5V cannot be lower than 1.2V. Note 2: At maximum, V dd +1.5V cannot be higher than 5.5V. ELECTRICAL SPECIFICATION (Min/max values are valid over the whole recommended operating range. Typical conditions: T op = 27℃; V dd =V oc =2.7V) DC Characteristics Symbol Parameter Conditions/Notes Min Typ Max Units I dd_TX_0 I dd_TX_PMAX 315/433 MHz bands 13 14 Supply current (TX mode, 868 MHz band 16 18 Pout = 0 dBm) 915 MHz band 17 19 mA 315/433 MHz bands 21 22 Supply current (TX mode, 868 MHz band 23 25 Pout = Pmax) 915 MHz band 24 26 mA Tel: +86-755-86096587 Fax: +86-755-86096602 E-mail: sales@hoperf.com http://www.hoperf.com
I dd_RX I pd I lb I wt I x V lb V lba V il V ih <strong>RF12</strong> Supply current (RX mode) 315/433 MHz bands 868 MHz band 915 MHz band 11 12 13 13 14 15 mA Standby current (Sleep mode) All blocks disabled 0.3 µA Low battery voltage detector current 0.5 µA consumption Wake-up timer current consumption 1.5 µA Idle current Low battery detect threshold Low battery detection Crystal oscillator and 3 3.5 mA baseband parts are on Programmable in 0.1 V 2.2 5.3 V steps accuracy ±75 Digital input low level voltage Digital input high level 0.7*V dd voltage mV 0.3*V dd V V I il Digital input current V il = 0 V -1 1 µA I ih Digital input current V ih = V dd , V dd = 5.4 V -1 1 µA V ol Digital output low level I ol = 2 mA 0.4 V V oh Digital output high level I oh = -2 mA V dd -0.4 V AC Characteristics (PLL parameters) Symbol Parameter Conditions/Notes Min Typ Max Units f ref PLL reference frequency (Note 1) 8 10 12 MHz Receiver LO / f o Transmitter carrier frequency 315MHz band,2.5kHz resolution 433MHz band,2.5kHz resolution 868MHz band,5.0kHz resolution 915MHz band,7.5kHz resolution 310.24 430.24 860.48 900.72 319.75 439.75 879.51 929.27 Frequency error < 1kHz after t lock PLL lock time 20 us 10MHz step t st, P PLL startup time With a running crystal oscillator 250 us MHz Tel: +86-755-86096587 Fax: +86-755-86096602 E-mail: sales@hoperf.com http://www.hoperf.com
Page 1 and 2: RF12 Universal ISM Band FSK Transce
Page 3 and 4: RF12 DETAILED FEATURE-LEVEL DESCRIP
Page 5 and 6: 1, Inexpensive, low accuracy crysta
Page 7: RF12 8 CLK DO Microcontroller clock
Page 11 and 12: C o Q o L out RF12 Output capacitan
Page 13 and 14: Timing Diagram RF12 Control Command
Page 15 and 16: Logic connections between power con
Page 17 and 18: RF12 Bits 7-5 (i2 to i0): Receiver
Page 19 and 20: RF12 Note: The transceiver is in re
Page 21 and 22: RF12 10. TX Configuration Control C
Page 23 and 24: RF12 1 0 0 2.5 1 0 1 3.33 1 1 0 5 1
Page 25 and 26: RX FIFO BUFFERED DATA READ RF12 In
Page 27 and 28: REFERENCE DESIGNS RF12 Schematic PC
Page 29 and 30: RF12 Tel: +86-755-86096587 Fax: +86
Page 31: RF12 HOPE MICROELECTRONICS CO.,LTD

RF12 Universal ISM Band FSK Transceiver

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