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RF RFM22B ISM Transceiver Module 868MHZ
HopeRF's RFM22B/23B are highly integrated, low cost,433/868/915MHZwireless ISM transceivers module. The low receive sensitivity(–121dBm)coupled with industry-leading +20dBm output power ensures extended range and improved link performance. Built-in antenna diversity and support for frequency hopping can be used to further extend the range and enhance performance. Additional system features such as an automatic wake-up timer, low battery detector, 64 bytes TX/RX FIFOs, automatic packet handling, and preamble detection reduce overall current consumption and allow the use of lower-cost system MCUs. An integrated temperature sensor, general-purpose ADC, power-on-reset (POR), and GPIOs further reduce overall system cost and size. The RFM22B/23B’s digital receive architecture features a high-performance ADC and DSP based modem which performs demodulation, filtering, and packet handling for increased flexibility and performance. The direct digital transmits modulation and automatic PA power ramping ensure precise transmit modulation and reduced spectral spreading ensuring compliance with global regulations including FCC, ETSI. An easy-to-use calculator is provided to quickly configure the radio settings, simplifying customer's system design and reducing time to market.
Feature and application:
Feature:
-
frequency range
-
433/868/915MHz bands
-
Sensitivity = –121dBm
-
Output power range
-
+20 dBm Max(RFM22B)
-
+13 dBm Max(RFM23B)
-
Low power consumption
-
18.5 receive
-
30 mA @ +13 dBm transmit
-
85 mA @ +20 dBm transmit
-
Data Rate = 0.123 to 256kbps
-
FSK, GFSK, and OOKmodulation
-
Power Supply = 1.8 to 3.6V
-
Ultra-low-power shutdown mode
-
DigitalRSSI
-
Wake-uptime
-
Auto-frequency calibration(AFC)
-
Power-on-reset(POR)
-
Antenna diversity and switch control
-
Configurable packet handler
-
Preamble detector
-
TX and RX 64 byteFIFOs
-
Low battery detector
-
Temperature sensor and 8-bit ADC
-
–40 to +85 °C temperature range
-
Integrated voltage regulators
-
Frequency hopping capability
-
On-chip crystal tuning
-
14-PIN DIP & 16-PIN SMD package
-
Low cost
Application:
-
Remote-control
-
Home security &alarm
-
Telemetry
-
Personal data logging
-
To control
-
Tire pressure monitoring
-
Wireless PC peripherals
Specifications:
Attribute |
Value |
---|---|
Module Type |
Transceiver |
Supported Frequency Bands |
868 MHz |
Modulation Technique |
FSK, GFSK, OOK |
Maximum RF Data Rate |
256kbit/s |
Maximum Output Power |
+20dBm |
Receiver Sensitivity |
-121dBm |
Supported Bus Interfaces |
SPI |
Supply Voltage |
1.8 → 3.6V |
Dimensions |
16 x 16 x 4.9mm |
Height |
4.9mm |
Length |
16mm |
Maximum Operating Temperature |
+85°C |
Minimum Operating Temperature |
-40°C |
Width |
16mm |
Mechanical dimension:
Electrical specification:
DC Electrical characteristics:
-
Parameter
Symbol
Conditions
Min
Typ
Max
Units
Supply Voltage Range
VDD
1.8
3.0
3.6
V
Power Saving Modes
IShutdown
RC Oscillator, Main Digital Regulator, and Low Power Digital Regulator OFF
—
15
50
nA
IStandby
Low Power Digital Regulator ON (Register values retained) and Main Digital Regulator, and RC Oscillator OFF
—
450
800
nA
ISleep
RC Oscillator and Low Power Digital Regulator ON (Register values retained) and Main Digital Regulator OFF
—
1
—
µA
ISensor-LBD
Main Digital Regulator and Low Battery Detector ON, Crystal Oscillator and all other blocks OFF
—
1
—
µA
ISensor-TS
Main Digital Regulator and Temperature Sensor ON, Crystal Oscillator and all other blocks OFF
—
1
—
µA
IReady
Crystal Oscillator and Main Digital Regulator ON, all other blocksOFF.Crystal Oscillator buffer disabled
—
800
—
µA
TUNE Mode Current
ITune
Synthesizer and regulators enabled
—
8.5
—
mA
RX Mode Current
IRX
—
18.5
—
mA
TX Mode Current
—RFM22B
ITX_+20
txpow[2:0] = 111 (+20 dBm)
—
85
—
mA
TX Mode Current
—RFM23B
ITX_+13
txpow[2:0] = 110 (+13 dBm)
—
30
—
mA
ITX_+1
txpow[2:0] = 001 (+1 dBm)
—
18
—
mA
Synthesizer AC Electrical Characteristics:
-
Parameter
Symbol
Conditions
Min
Typ
Max
Units
Synthesizer Frequency Range—RFM22B/23B
FSYN
433MHz band 868MHz band 915MHz band
413
848
901
453
888
929
MHz MHz MHz
Synthesizer Frequency Resolution
FRES-LB
433MHz Band
—
156.25
—
Hz
FRES-HB
868/915MHz Band
—
312.5
—
Hz
Reference Frequency Input Level
fREF_LV
When using external reference signal driving XOUT pin, instead of using crystal. Measured peak-to-peak (VPP)
0.7
—
1.6
V
Synthesizer Settling Time
tLOCK
Measured from exiting Ready mode with XOSC running to any frequency.
Including VCO Calibration.
—
200
—
µs
Residual FM
FRMS
Integrated over250 kHz bandwidth (500 Hz lower bound of integration)
—
2
4
kHzRMS
Phase Noise
L(fM)
F = 10 kHz
—
–80
—
dBc/Hz
F = 100 kHz
—
–90
—
dBc/Hz
F = 1 MHz
—
–115
—
dBc/Hz
F = 10 MHz
—
–130
—
dBc/Hz
Receiver AC Electrical characteristics:
-
Parameter
Symbol
Conditions
Min
Typ
Max
Units
RX FrequencyRange—RFM22B/23B
FRX
433MHz band 868MHz band
413
848
453
888
MHz MHz
915MHz band
895
935
MHz
RX Sensitivity
PRX_2
(BER < 0.1%)
(2 kbps, GFSK, BT = 0.5,f =5 kHz)special crystal is used on the module
—
–121
—
dBm
PRX_40
(BER < 0.1%) (1.2 kbps, FSK,BT=0.5,
f =45kHz)
—
–114
—
dBm
PRX_100
(BER < 0.1%)
(100 kbps, GFSK, BT = 0.5,
f =50 kHz)
—
–104
—
dBm
PRX_125
(BER < 0.1%)
(125 kbps, GFSK, BT = 0.5,
f =62.5 kHz)
—
–101
—
dBm
PRX_OOK
(BER < 0.1%)
(4.8 kbps, 350 kHz BW, OOK)
—
–110
—
dBm
(BER < 0.1%)
(40 kbps, 400 kHz BW, OOK)
—
–102
—
dBm
RX Channel Bandwidth
BW
2.6
—
620
kHz
BER Variation vs Power Level
PRX_RES
Up to +5 dBm Input Level
—
0
0.1
ppm
RSSI Resolution
RESRSSI
—
±0.5
—
dB
1-Ch Offset Selectivity
C/I1-CH
DesiredRefSignal3dBabovesensitivity, BER < 0.1%. Interferer and desired modulated with 40kbpsF=20kHzGFSKwith BT = 0.5, channel spacing = 150kHz
—
–31
—
dB
2-Ch Offset Selectivity
C/I2-CH
—
–35
—
dB
3-Ch Offset Selectivity
C/I3-CH
—
–40
—
dB
Blocking at 1 MHz Offset
1MBLOCK
Desired Ref Signal 3 dB above sensitivity. Interferer and desired modulated with
40 kbpsF = 20 kHz GFSK with BT = 0.5
—
–52
—
dB
Blocking at 4 MHz Offset
4MBLOCK
—
–56
—
dB
Blocking at 8 MHz Offset
8MBLOCK
—
–63
—
dB
Image Rejection
ImREJ
Rejection at the image frequency.
IF=937 kHz
—
–30
—
dB
Spurious Emissions
POB_RX1
Measured at RX pins
—
—
–54
dBm
Transmitter AC characteristics:
-
Parameter
Symbol
Conditions
Min
Typ
Max
Units
TX FrequencyRange RFM22B/23B
FTX
433MHz band 868MHz band
413
848
453
888
MHz MHz
915MHz band
895
935
MHz
FSK Data Rate
DRFSK
0.123
—
25
Subtitle | N/A |
---|---|
UPC/EAN | 4604046160344 |
Count | N/A |
M.R.P | ₹758.00 |
Brand Name | HopeRF |
Model | RFM22B -868 |
Whoesale | Available |
Frequency | 868MHZ |
Color | Green |
Modulations | FSK, GFSK and OOK modulation. |
FSK Bit rates | N/A |
Demodulations | N/A |
Dimension | 16 x 16 x 4.9mm |