Single-Chip Low Cost Low Power RF-Transceiver (Rev. B

CC25004.3 RF Transmit SectionTc = 25°C, VDD = 3.0 V, 0 dBm if nothing else stated. All measurement results obtained using the CC2500EM referencedesign ([4]).Parameter Min Typ Max Unit Condition/NoteDifferential loadimpedanceOutput power,highest settingOutput power,lowest settingOccupied bandwidth(99%)Adjacent channelpower (ACP)Spurious emissions25 MHz – 1 GHz47-74, 87.5-118, 174-230, 470-862 MHz1800-1900 MHzAt 2·RF and 3·RFOtherwise above 1GHz80 + j74 Ω Differential impedance as seen from the RF-port (RF_P andRF_N) towards the antenna. Follow the CC2500EMreference design ([4]) available from the TI website.+1 dBm Output power is programmable and full range is availableacross the entire frequency band.Delivered to a 50 Ω single-ended load via CC2500EMreference design ([4]) RF matching network.–30 dBm Output power is programmable and full range is availableacross the entire frequency band.91117296489-28-27-22-21–36–54–47–41–30kHzkHzkHzkHzdBcdBcdBcdBcdBmdBmdBmdBmdBmDelivered to a 50 Ω single-ended load via CC2500EMreference design ([4]) RF matching network.It is possible to program less than -30 dBm output power,but this is not recommended due to large variation in outputpower across operating conditions and processing cornersfor these settings.2.4 kBaud, 38.2 kHz deviation, 2-FSK10 kBaud, 38.2 kHz deviation, 2-FSK250 kBaud, MSK500 kBaud, MSK2.4 kBaud, 38.2 kHz deviation, 2-FSK, 250 kHz channelspacing10 kBaud, 38.2 kHz deviation, 2-FSK, 250 kHz channelspacing250 kBaud, MSK, 750 kHz channel spacing500 kBaud, MSK, 1 MHz channel spacingRestricted band in EuropeRestricted bands in USATX latency 8 bit Serial operation. Time from sampling the data on thetransmitter data input pin until it is observed on the RFoutput ports.Table 6: RF Transmit SectionSWRS040B Page 12 of 92