RFM42 Datasheet, PDF (6/110 Pages) –

RFM42/43
Table 3. Transmitter AC Electrical Characteristics¹
Parameter
Symbol
Conditions
Min
TX
Frequency FSYNTH-LB
Low Band
240
Range¹
FSYNTH-HB High Band
480
FSK Modulation
Data Rate²
DRFSK
1
OOK Modulation
Data Rate²
DROOK
1.2
Modulation
Deviation¹
Production tests maximum limit of 320
Δf
±0.625
kHz
Modulation
ΔfRES
—
Deviation Resolution
Output Power
Range¹ (RFM43)
Power control by txpow[2:0] Register
PTX
Production test at txpow[2:0] = 11 Tested –8
at 915 MHz
Max Output
PTX_max Tested at 315-915 MHz
+11
Power(RFM43)
Output Power
Range¹ (RFM42)
Power control by txpow[2:0] Register
PTX
Production test at txpow[2:0] = 11 Tested +8
at 915 MHz
Max Output
PTX_max Tested at 315-915 MHz
+15
Power(RFM42)
TX RF Output
PRF_OUT controlled by txpow[2:0] Register
—
Steps²
TX RF Output Level
Variation vs.
PRF_V Measured from VDD=3.6 V to VDD=1.8 V —
Voltage²
TX RF Output
Level² Variation vs. PRF_TEMP
–40 to +85 ℃
—
Temperature
TX RF Output Level
Variation vs.
PRF_FREQ ^{Measured across any one frequency}
—
band
Frequency²
Transmit Modulation
Gaussian Filtering Bandwith Time
B*T
—
Filtering²
Product
Spurious
Emissions²
POB-TX1
POUT =11dBm, Frequencies <1 GHz
—
POB-TX2
1–12.75 GHz, excluding harmonics
—
Notes:
1. All specification guaranteed by production test unless otherwise noted.
2. Guaranteed by qualification.
Typ
—
—
—
—
0.625
—
+13
—
+17
3
2
2
1
0.5
—
—
Max
480
930
128
40
±320
—
+13
—
+17
—
—
—
—
—
—
–54
–54
Unit
s
MHz
kbps
kbps
kHz
kHz
dBm
dBm
dBm
dBm
dB
dB
dB
dB
dBm
dBm
6
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