CC1110Fx / CC1111Fx
7.3 RF Transmit Section
TA = 25 °C, VDD = 3.0 V if nothing else stated. All measurement results are obtained using the
CC1110EM reference designs ([1]) if nothing else is stated.
Parameter
Min
Typ
Max
Unit
Condition/Note
Differential load
impedance
Differential impedance as seen from the RF-port (RF_P and
RF_N) towards the antenna. Follow the CC1110EM
reference designs ([1], [2] and [3]) available from the TI
website.
315 MHz
122 + j31
116 + j41
86.5 + j43
+10
Ω
433 MHz
868/915 MHz
Output power,
highest setting
dBm
Output power is programmable, and full range is available in
all frequency bands
Output power may be restricted by regulatory limits. See
Application Note AN050 [13] – note that this AN is for CC1101
but the same limitations apply for CC1110Fx and CC1111Fx as
well. For CC1111Fx see in addition Design Note DN016 [14] for
information on antenna solution and additional regulatory
restrictions
See figure Figure 3 for typical variation over operating
conditions
Delivered to 50 Ω single-ended load via CC1110EM
reference design [3] RF matching network.
Output power,
lowest setting
-30
dBm
Output power is programmable and is available across the
entire frequency band
Delivered to 50 Ω single-ended load via CC1110EM
reference design [3] RF matching network.
Harmonics, radiated
Measured on CC1110EM reference designs ([2] and [3]) with
CW, 10dBm output power
2
3
nd Harm, 433 MHz
rd Harm, 433 MHz
-51
-42
dBm
dBm
The antennas used during the radiated measurements
(SMAFF-433 from R.W.Badland and Nearson
S331 868/915) play a part in attenuating the harmonics
2
3
nd Harm, 868 MHz
rd Harm, 868 MHz
-37
-43
Harmonics, radiated
Measured on [4] CC1111 USB-Dongle Reference Design,
with CW, 10dBm output power. The chip antenna used
during the radiated measurements play a part in attenuating
the harmonics
2
3
nd Harm, 868 MHz
rd Harm, 868 MHz
-55
-55
Harmonics,
conducted
Measured on CC1110EM reference designs ([1], [2] and [3])
with CW, 10dBm output power, TX frequency at 315.00
MHz, 433.00 MHz, 868.00 MHz, or 915.00 MHz
315 MHz
433 MHz
< -35
< -52
dBm
Frequencies below 960 MHz
Frequencies above 960 MHz
< -44
< -35
Frequencies below 1 GHz
Frequencies above 1 GHz
868 MHz
915 MHz
< -35
< -34
Frequencies above 1 GHz
Frequencies above 1 GHz
SWRS033E
Page 18 of 239
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