CC2550-RTY1 datasheet(6/62 Pages) TI2

6 / 62 page

CC2550

SWRS039B

Page 6 of 58

4.2

RF Transmit Section

Tc = 25

°C, VDD = 3.0 V, 0 dBm if nothing else stated. All measurement results obtained using the CC2550EM reference

design ([3]).

Parameter

Min

Typ

Max

Unit

Condition/Note

Differential load

impedance

80 + j74

Ω

Differential impedance as seen from the RF-port (RF_P

and RF_N) towards the antenna. Follow the CC2550EM

reference design ([3]) available from the TI website.

Output power, highest

setting

dBm

Output power is programmable and full range is available

across the entire frequency band.

Delivered to 50

Ω single-ended load via CC2550EM

reference design ([3]) RF matching network.

Output power, lowest

setting

–30

dBm

Output power is programmable and full range is available

across the entire frequency band.

Delivered to 50

Ω single-ended load via CC2550EM

reference design ([3]) RF matching network.

It is possible to program less than -30 dBm output power,

but this is not recommended due to large variation in

output power across operating conditions and processing

corners for these settings.

Adjacent channel

power (ACP) @2440

MHz

-25

-24

dBc

2.4 kBaud, 38.2 kHz deviation, 2-FSK, 250 kHz channel

spacing

10 kBaud, 38.2 kHz deviation, 2-FSK, 250 kHz channel

spacing

250 kBaud, MSK, 750 kHz channel spacing

500 kBaud, MSK, 1 MHz channel spacing

Spurious emissions

25 MHz – 1 GHz

47-74, 87.5-118, 174-

230, 470-862 MHz

1800-1900 MHz

At 2·RF and 3·RF

Otherwise above 1

GHz

–36

–54

–47

–41

–30

dBm

Restricted band in Europe

Restricted bands in USA

TX latency

bit

Serial operation. Time from sampling the data on the

transmitter data input pin until it is observed on the RF

output ports.

Table 5: RF Transmit Parameters

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