User's Manual

User Manual
Version 1.1c
2013-07-01
OEM radio modules deRFmega
www.dresden-elektronik.de
Page 11 of 52
Current
consumption
I
TXon
(TX_PWR = +20 dBm)
119.4
197.7
205.2
mA
I
TXon
(TX_PWR = +4 dBm)
27.0
46.1
46.7
mA
I
RXon
19.8
22.5
22.8
mA
I
Idle
(Txoff, MCK = 8 MHz)
5.2
5.4
5.6
mA
I
Sleep
(depends on Sleep Mode)
<1
µA
Table 4-4: Quartz crystal properties
Quartz crystal
Parameter
Min
Typ
Max
Unit
Watch crystal
Frequency
32.768
kHz
Frequency tolerance
+/-20
ppm
Transceiver crystal
Frequency
16.000
MHz
Frequency tolerance
+/-10
ppm
Table 4-5: Radio data of deRFmega128-22M00 and deRFmega128-22M10
Radio 2.4 GHz (Supply voltage VCC = 3.3V)
Parameter / feature
Min
Typ
Max
Unit
Antenna
Type
Chip ceramic
Gain
-0.7
dBi
Diversity
No
RF Pad
Impedance
50
Ω
Range
Line of sight
TBD
m
Frequency range
1
PHY_CC_CCA = 0x0B...0x1A
2405
2480
MHz
Channels
PHY_CC_CCA = 0x0B...0x1A
16
Transmitting
power conducted
TX_PWR = 0x00
VCC = 3.3V
2.3
2.9
dBm
Receiver sensitivity
Data Rate = 250 kBit/s
Data Rate = 500 kBit/s
Data Rate = 1000 kBit/s
Data Rate = 2000 kBit/s
-98
-94
-91
>-80
dBm
dBm
dBm
dBm
1
Operating the transmitter at channel 11 to 25 requires a duty cycle ≤35% and channel 26 requires a
duty cycle ≤15% to fulfil all requirements according to FCC Part 15 Subpart C § 15.209. See chapter
4.3 for further information.