User Manual
datasheet
Version 0.9
2017-09-13
deRFsamR21E-23S00/-23S20 datasheet
www.dresden-elektronik.de
Page 14 of 36
P
Range
Output power range
16 steps configurable
transceiver output power
-17
4
dB
P
emit
RF transmit power
radiated deRFsamR21E-
23S00 (chip antenna)
2
4
dBm
EIRP
radiated deRFsamR21E-
23S20 using antenna
Wimo 17013 (+5 dBi)
9
dBm
EIRP
D
los
Maximum line of
sight range
3
deRFsamR21E-23S00
(chip antenna)
200
m
deRFsamR21E-23S20
(2 dBi Gain antenna)
220
m
RX
sens
Receiver sensitivity
Data Rate 250 kBit/s
Data Rate 500 kBit/s
Data Rate 1 MBit/s
Data Rate 2 MBit/s
-99
-94
-92
-86
dBm
dBm
dBm
dBm
P
SPUR_TX
Transmitter spurious
emissions according
to EN 300328 V2.1.1
(as measured in
certification tests)
30 MHz to 1 GHz
-62
dBm
1 GHz to 4 GHz
-38
dBm
4 GHz to 12.75 GHz
-58
dBm
E
SPUR_TX
Transmitter spurious
emissions according
to FCC 15.247
(as measured in
certification tests)
30 MHz to 200 MHz
35
dBµV/m
200 MHz to 1 GHz
22
dBµV/m
1 GHz to 4 GHz
36
dBµV/m
4 GHz to 26.5 GHz
48
dBµV/m
2.3 GHz to 2.4 GHz
53
dBµV/m
2.484 GHz to 2.5 GHz
61
dBµV/m
f
CPU
Maximum MCU clock
48
MHz
f
TRXosc
Transceiver oscillator
frequency
16
MHz
f
TRXoscdev
Transceiver oscillator
frequency deviation
At 25°C
-10
+10
ppm
-40°C < T
OP
< +85°C
-20
+20
ppm
Note:
1. For FCC band edge compliance with deRFsamR21E-23S20 it is required to operate
Ch26 with not more than TX_PWR=0x7 (0 dBm).
2. Based on RF pattern measurement with USB powered Baseboard
3. Measured at height of 1.5 m above flat land of grass with transmit power 4 dBm.
6.3. TX Power register settings
The output power of the transceiver can be configured with the TX_PWR register according
to Table 8-3.