Texas Instruments 3138 155 232931 - Manual (Page 25)

CC2420
SWRS041B Page 25 of 89
1 0 1 0
1 1 0 1
I-phase
Q-phase
1 0 0 1
1 0 0 1
0 0 0
1 1 0 0
1 0 1 1
0 0 1 0
1
T
C
2T
C
Figure 7. I / Q Phases when transmitting a zero-symbol chip sequence, T
C
= 0.5 µs
11 Configuration Overview
CC2420 can be configured to achieve the
best performance for different
applications. Through the programmable
configuration registers the following key
parameters can be programmed:
• Receive / transmit mode
• RF channel selection
• RF output power
• Power-down / power-up mode
• Crystal oscillator power-up / power
down
• Clear Channel Assessment mode
• Packet handling hardware support
• Encryption / Authentication modes