CC2430 Datasheet, PDF (172/212 Pages) Texas Instruments – A True System-on-Chip solution for 2.4 GHz IEEE 802.15.4 / ZigBee-TM

CC2430
Radio : Transmitter Test Modes
pseudorandom bit sequence for bit error
testing. Please note that CC2430 requires
symbol synchronization, not only bit
synchronization, for correct reception. Packet
error rate is therefore a better measurement
for the true RF performance.
Another option to generate a modulated
spectrum is to fill the TXFIFO with pseudo-
random data and set MDMCTRL1L.TX_MODE to
2. CC2430 will then transmit data from the FIFO
disregarding a TXFIFO underflow. The length
of the transmitted data sequence is then 1024
bits (128 bytes).
A plot of the modulated spectrum from CC2430
is shown in Figure 49. Note that to find the
output power from the modulated spectrum,
the RBW must be set to 3 MHz or higher.
Figure 49: Modulated spectrum plot
CC2430 Data Sheet (rev. 2.1) SWRS036F
Page 172 of 211