4432-T-B1 B 470 Silicon Laboratories Inc, 4432-T-B1 B 470 Datasheet - Page 58
4432-T-B1 B 470
Manufacturer Part Number
4432-T-B1 B 470
Description
RF Modules & Development Tools Tx/Rx Split 4432 TRx Testcard
Manufacturer
Silicon Laboratories Inc
Datasheet
1.4432-T-B1_B_470.pdf
(74 pages)
Specifications of 4432-T-B1 B 470
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Si4430/31/32-B1
8.7. Low Duty Cycle Mode
The Low Duty Cycle Mode is available to automatically wake-up the receiver to check if a valid signal is available.
The basic operation of the low duty cycle mode is demonstrated in the figure below. If a valid preamble or sync
word is not detected the chip will return to sleep mode until the beginning of a new WUT period. If a valid preamble
and sync are detected the receiver on period will be extended for the low duty cycle mode duration (TLDC) to
receive all of the packet. The WUT period must be set in conjunction with the low duty cycle mode duration. The R
value (“Register 14h. Wake-up Timer Period 1”) is shared between the WUT and the TLDC. The ldc[7:0] bits are
located in “Register 19h. Low Duty Cycle Mode Duration.” The time of the TLDC is determined by the formula
below:
R
4
2
TLDC
ldc
7 [
:
] 0
ms
32
.
768
Figure 30. Low Duty Cycle Mode
58
Rev 1.1
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