A N 6 9 2
20
Rev 0.4
Figure 18. Supply Current versus Time Diagram from Shutdown to RF initialized Ready State
Table 6. Switching Times between Radio States
State/Mode
Response Time to
TX
RX
Shutdown
15 ms
15 ms
Sleep
440
μ
s
440
μ
s
SPI Active
340
μ
s
340
μ
s
Ready
126
μ
s
122
μ
s
TX Tune
58
μ
s
N/A
RX Tune
74
μ
s
TX
138
μ
s
RX
130
μ
s
75
μ
s
Notes:
1.
This state change is not possible in the RF chip.
2.
While the chip is in sleep state, the NSEL pin has to stay in high state. If the host processor is not able to provide this
during sleep, a pullup resistor can be necessary on the NSEL pin.
Summary of Contents for Si4455 Series
Page 8: ...AN692 8 Rev 0 4 Figure 6 Device Configuration Options ...
Page 22: ...AN692 22 Rev 0 4 Figure 21 Supply Current versus Time Diagram from Shutdown to RX State ...
Page 23: ...AN692 Rev 0 4 23 4 4 Radio Chip Waking Up Figure 22 Radio Wake Up Process ...
Page 35: ...AN692 Rev 0 4 35 Figure 32 Transmission Flowchart ...
Page 39: ...AN692 Rev 0 4 39 Figure 33 Reception Flowchart ...
Page 41: ...AN692 Rev 0 4 41 Figure 34 Bidirectional Variable Packet Example Project Flowchart ...
Page 47: ...AN692 Rev 0 4 47 Figure 41 Long Packet Transmission Flowchart ...
Page 48: ...AN692 48 Rev 0 4 Figure 42 Long Packet RX Flowchart ...