RFM68W Datasheet, PDF (6/20 Pages) List of Unclassifed Manufacturers – Low Cost ISM Transmitter Module

RFM68W
RFM68W
2.4. Electrical Specifications
The table below gives the electrical specifications of the transmitter under the following conditions: Supply voltage = 3.3 V,
temperature = 25 °C, f_XOSC = 26 MHz, f_RF = 915 MHz, 2-FSK modulation with Fdev=+/-10 kHz, bit rate = 10 kbit/s and
output power = +10 dBm terminated in a matched 50 Ohm impedance, unless otherwise specified.
Table 4 Transmitter Specifications
Symbol Description
Current Consumption
IDDSL
Supply current in Sleep mode
IDDT_315 Supply current in Transmit mode
at 315 MHz*
IDDT_915 Supply current in Transmit mode
at 915 MHz*
RF and Baseband Specifications
FBAND Operation Frequency Bands
FDA
BRF
BRO
OOK_B
RFOP
RFOPFL
DRFOPV
PHN
Frequency deviation, FSK
Bit rate, FSK
Bit rate, OOK
OOK Modulation Depth
RF output power in 50 Ohms
in either frequency band
RF output power flatness
Variation in RF output power with
supply voltage
Transmitter phase noise
STEP_22
STEP_26
RF frequency step
RF frequency step
STEP_26 RF frequency step
Conditions
Min
-
RFOP=+10dBm 50% OOK -
RFOP=+10dBm FSK -
RFOP=0dBm FSK
-
RFOP=+10dBm FSK -
RFOP=0dBm FSK -
Band0,For 315MHz Module
312
Band0,For 433MHz Module
380
Band0,For 868MHz Module
860
Band1,For 915MHz Module
902
10
Permissible Range
0.5
Permissible Range
0.5
-
High Power Setting 7
Low Power Setting* -3
From 315 to 380 MHz, 50 Ohms load -
2.5 V to 3.3 V -
1.8 V to 3.7 V -
At offset:
100 kHz -
350 kHz -
550 kHz -
1.15 MHz -
FXOSC = 24 MHz,for 315MHz module -
FXOSC = 26MHz, for 433,868MHz
-
module
FXOSC = 26MHz, for 915MHz module
Typ
0.5
11
15
9
17.5
10.5
-
-
-
45
10
0
2
-
-
-82
-92
-96
-103
1.46484
1.58691
3.17383
Max Unit
1 µA
- mA
- mA
- mA
- mA
- mA
380 MHz
450 MHz
870 MHz
928 _MHz
200 kHz
100 kbps
10 kbps
- dB
- dBm
- dBm
- dB
3 dB
7 dB
-76
-81
-91
-101
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
- kHz
- kHz
- kHz
6
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