CC2538 Datasheet, PDF (8/24 Pages) TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS – A Powerful System-On-Chip for 2.4-GHz IEEE 802.15.4, 6LoWPAN and ZigBee Applications

CC2538
SWRS096A – DECEMBER 2012 – REVISED APRIL 2013
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RF TRANSMIT SECTION
Measured on Texas Instruments CC2538 EM reference design with T_A = 25°C, V_DD = 3 V and f_c = 2440 MHz, unless
otherwise noted.
Boldface limits apply over the entire operating range, T_A = –40°C to 125°C, V_DD = 2 V to 3.6 V, and f_c = 2394 MHz to 2507
MHz.
PARAMETER
TEST CONDITIONS
MIN
TYP MAX UNIT
Nominal output power
Delivered to a single-ended 50-Ω load through a balun using
maximum-recommended output-power setting
[1] requires minimum –3 dBm
7
dBm
Programmable output-power
range
Spurious emissions
Maximum recommended output power setting⁽¹⁾
Measured according to stated regulations.
30
dB
Only largest spurious emission
stated within each band.
25 MHz–1000 MHz (outside restricted bands)
25 MHz–1000 MHz (within FCC restricted bands)
25 MHz–1000 MHz (within ETSI restricted bands)
1800–1900 MHz (ETSI restricted band)
5150–5300 MHz (ETSI restricted band)
1 GHz–12.75 GHz (except restricted bands)
At 2483.5 MHz and above (FCC restricted band),
f_c= 2480 MHz⁽²⁾
–56
–58
–58
–60
dBm
–54
–51
–42
Measured as defined by [1] using maximum-recommended output-
Error vector magnitude (EVM) power setting
3%
[1] requires maximum 35%.
Optimum load impedance
Differential impedance on the RF pins
66 + j64
Ω
(1) Texas Instruments CC2538 EM reference design is suitable for systems targeting compliance with EN 300 328, EN 300 440, FCC
CFR47 Part 15, and ARIB STD-T-66.
(2) To improve margins for passing FCC requirements at 2483.5 MHz and above when transmitting at 2480 MHz, use a lower output-power
setting or less than 100% duty cycle.
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