RFM22B-868-S1 QUASAR, RFM22B-868-S1 Datasheet - Page 62

• Manufacturer Part Number: RFM22B-868-S1
• Description: MODULE, TRANSCEIVER, 20DB,SMD,868MHZ
• Manufacturer: QUASAR

Specifications of RFM22B-868-S1

• Modulation Type: FSK, GFSK, OOK
• Data Rate Max: 256Kbps
• Sensitivity: -121dBm
• Supply Voltage Range: 1.8V To 3.6V
• Supply Current: 85mA
• Interface Type: SPI
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

R F M 2 2 B / 2 3 B
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TX_ANT
RX_ANT
GPIO_0
GPIO_1
GPIO_2
SCLK
nSEL
GND
nIRQ
VCC
SDO
SDN
ANT
SDI
I/O
I/O
I/O
I/O
O
O
I
I
S
S
I
I
I
I
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should be = 0
Rx Antenna select input pin, When RFM2 2 is RX state,RX_ANT should be = 1, TX_ANT
Tx Antenna select input pin, When RFM22 is TX state,TX_ANT should be = 1, RX_ANT
+1.8 to +3.6 V supply voltage. The recommended V
Ground reference.
General Purpose Digital I/O that may be configured through the registers to perform various
functions including: Microcontroller Clock Output, FIFO status, POR, Wake-Up timer, Low
Battery Detect, TRSW, AntDiversity control, etc. See the SPI GPIO Configuration Registers,
Address 0Bh, 0Ch, and 0Dh for more information.
0–V
control
registers
Serial Data input. 0–V
serial data bus.
Serial Clock input. 0–V
the 4-line serial data bus. Data is clocked into the RFM22 on positive edge transitions.
Serial Interface Select input. 0– V
function for the 4-line serial data bus. The signal is also used to signify burst read/write mode.
General Microcontroller Interrupt Status output. When the RFM22 exhibits anyone of the
Interrupt Events the nIRQ pin will be set low=0. Please see the Control Logic registers
section for more information on the Interrupt Events. The Microcontroller can then determine
the state of the interrupt by reading a corresponding SPI Interrupt Status Registers, Address
03h and 04h.
Shutdown input pin. 0–V
mode. When SDN =1 the chip will be completely shutdown and the contents of the registers
will be lost.
should be = 0
RF signal output/input.(50 OHM output
CC
V digital output that provides a serial readback function of the internal
CC
DD
CC
V digital input. This pin provides the serial data stream for the 4-line
V digital input. This pin provides the serial data clock function for
V digital input. SDN should be = 0 in all modes except Shutdown
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CC
V digital input. This pin provides the Select/Enable
/input Impedance
CC
supply voltage is +3.3 V.
)
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