RFM31B-868-D QUASAR, RFM31B-868-D Datasheet - Page 53

• Manufacturer Part Number: RFM31B-868-D
• Description: MODULE, RECEIVER, -118DB, 868MHZ
• Manufacturer: QUASAR

Specifications of RFM31B-868-D

• Modulation Type: FSK, GFSK, OOK
• Sensitivity: -121dBm
• Power Supply: 1.8V To 3.6V
• Supply Current: 18.5mA
• Data Rate Max: 256Kbps
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

RFM31B
53
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GPIO_0
GPIO_1
GPIO_2
SCLK
nSEL
GND
nIRQ
VCC
SDO
SDN
ANT
SDI
NC
I/O
I/O
I/O
I/O
O
O
S
S
I
I
I
I
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+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
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 RFM31 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 RFM31 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.
RF signal input.(50 OHM
No Connection
CC
V digital output that provides a serial readback function of the internal control
CC
DD
CC
V digital input. This pin provides the serial data stream for the 4-line
input Impedance
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
)
CC
supply voltage is +3.3 V.
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