CC2540F128 Datasheet, PDF (5/33 Pages) Texas Instruments – 2.4-GHz Bluetooth® low energy System-on-Chip

CC2540F128, CC2540F256
www.ti.com
SWRS084 – OCTOBER 2010
RF TRANSMIT SECTION
Measured on Texas Instruments CC2540 EM reference design with T_A = 25°C, VDD = 3 V and f_c = 2440 MHz
PARAMETER
TEST CONDITIONS
MIN TYP MAX
Output power
Delivered to a single-ended 50-Ω load through a balun using
maximum recommended output power setting
4
Delivered to a single-ended 50-Ω load through a balun using minimum
recommended output power setting
–20
Programmable output power Delivered to a single-ended 50 Ω load through a balun
24
range
Conducted measurement with a 50-Ω single-ended load. Complies
Spurious emissions
with EN 300 328, EN 300 440 class 2, FCC CFR47, Part 15 and ARIB
–41
STD-T-66 ⁽¹⁾
TX mode, –23-dBm output power, no peripherals active, low MCU
activity, MCU at 250 kHz
21.1
TX mode, –6-dBm output power, no peripherals active, low MCU
activity, MCU at 250 kHz
23.8
Current consumption
TX mode, 0-dBm output power, no peripherals active, low MCU
activity, MCU at 250 kHz
27
TX mode, 4-dBm output power, no peripherals active, low MCU
activity, MCU at 250 kHz
31.6
Optimum load impedance
Differential impedance as seen from the RF port (RF_P and RF_N)
toward the antenna
70 + j30
UNIT
dBm
dB
dBm
mA
Ω
(1) Designs with antenna connectors that require conducted ETSI compliance at 64 MHz should insert an LC resonator in front of the
antenna connector. Use a 1.6-nH inductor in parallel with a 1.8-pF capacitor. Connect both from the signal trace to a good RF ground.
Copyright © 2010, Texas Instruments Incorporated
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