SWRS111 Data sheet

SWRS111G June 2011 – January 2026 CC1121

PRODUCTION DATA

6.11 Transmit Parameters

T_A = 25°C, VDD = 3.0 V, f_c = 869.5 MHz if nothing else stated

PARAMETER	MIN	TYP	UNIT	CONDITION
Max output power		+12	dBm	At 950 MHz
		+14	dBm	At 915- and 920-MHz
		+15	dBm	At 915- and 920-MHz with VDD = 3.6 V
		+15	dBm	At 868 MHz
		+16	dBm	At 868 MHz with VDD = 3.6 V
		+15	dBm	At 433 MHz
		+16	dBm	At 433 MHz with VDD = 3.6 V
		+15	dBm	At 169 MHz
		+16	dBm	At 169 MHz with VDD = 3.6 V
Min output power		–11	dBm	Within fine step size range
Min output power		–40	dBm	Within coarse step size range
Output power step size		0.4	dB	Within fine step size range
Adjacent channel power		–75	dBc	4-GFSK 9.6 kbps in 12.5-kHz channel, measured in 100-Hz bandwidth at 434 MHz (FCC Part 90 Mask D compliant)
		–58	dBc	4-GFSK 9.6 kbps in 12.5-kHz channel, measured in 8.75-kHz bandwidth (ETSI 300 220 compliant)
		–61	dBc	2-GFSK 2.4 kbps in 12.5-kHz channel, 1.2-kHz deviation
Spurious emissions (not including harmonics)		<–60	dBm
Harmonics				Transmission at +14 dBm (or maximum allowed in applicable band where this is less than +14 dBm) using TI reference design. Emissions measured according to ARIB T-96 in 950-MHz band, ETSI EN 300 220 in 169-, 433-, and 868-MHz bands and FCC Part 15.247 in 450- and 915-MHz band Fourth harmonic in 915-MHz band will require extra filtering to meet FCC requirements if transmitting for long intervals (>50-ms periods).
Second Harm, 169 MHz		–39	dBm
Third Harm, 169 MHz		–58	dBm
Second Harm, 433 MHz		–56	dBm
Third Harm, 433 MHz		–51	dBm
Second Harm, 450 MHz		–60	dBm
Third Harm, 450 MHz		–45	dBm
Second Harm, 868 MHz		–40	dBm
Third Harm, 868 MHz		–42	dBm
Second Harm, 915 MHz		56	dBuV/m
Third Harm, 915 MHz		52	dBuV/m
Fourth Harm, 915 MHz		60	dBuV/m
Second Harm, 950 MHz		–58	dBm
Third Harm, 950 MHz		–42	dBm
Optimum load
Impedance 868-, 915-, and 920-MHz bands	35 + j35		Ω
433-MHz band	55 + j25		Ω
169-MHz band	80 + j0		Ω