CC2480_11 Datasheet, PDF (10/48 Pages) Texas Instruments – Z-Accel 2.4 GHz ZigBee Processor

CC2480
Parameter
Nominal output
power
Harmonics
2^nd harmonic
3^rd harmonic
4^th harmonic
5^th harmonic
Table 6: RF Transmit Parameters
Min Typ Max Unit Condition/Note
0
dBm Delivered to a single ended 50 Ω load through a balun.
[1] requires minimum –3 dBm
-50.7
-55.8
-54.2
-53.4
dBm
dBm
dBm
dBm
Measurement conducted with 100 kHz resolution bandwidth on
spectrum analyzer. Output Delivered to a single ended 50 Ω load
through a balun.
Spurious emission
30 - 1000 MHz
1– 12.75 GHz
1.8 – 1.9 GHz
5.15 – 5.3 GHz
EVM
Optimum load
impedance
-47
-43
-58
-56
11
60
+ j164
dBm
dBm
dBm
dBm
%
Maximum output power.
Texas Instruments CC2480 EM reference design complies with
EN 300 328, EN 300 440, FCC CFR47 Part 15 and ARIB STD-
T-66.
Transmit on 2480MHz under FCC is supported by duty-cycling
The peak conducted spurious emission is -47 dBm @ 192 MHz
which is in an EN 300 440 restricted band limited to -54 dBm. All
radiated spurious emissions are within the limits of
ETSI/FCC/ARIB. Conducted spurious emission (CSE) can be
reduced with a simple band pass filter connected between
matching network and RF connector (1.8 pF in parallel with 1.6
nH reduces the CSE by 20 dB), this filter must be connected to
good RF ground.
Measured as defined by [1]
[1] requires max. 35 %
Ω
Differential impedance as seen from the RF-port (RF_P and
RF_N) towards the antenna².
5.4 32 MHz Crystal Oscillator
Measured on Texas Instruments CC2480 EM reference design with T_A=25°C and VDD=3.0V
unless stated otherwise.
Table 7: 32 MHz Crystal Oscillator Parameters
Parameter
Crystal frequency
Crystal frequency
accuracy
requirement
ESR
C₀
C_L
Start-up time
Min Typ Max Unit Condition/Note
32
MHz
- 40
40 ppm Including aging and temperature dependency, as specified by [1]
6
16 60
Ω Simulated over operating conditions
1 1.9 7 pF
Simulated over operating conditions
10 13 16 pF
Simulated over operating conditions
212
µs
5.5 32.768 kHz Crystal Oscillator
Measured on Texas Instruments CC2480 EM reference design with T_A=25°C and VDD=3.0V
unless stated otherwise.
2 _{This is for 2440MHz}
CC2480 Data Sheet SWRS074A
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