TDA5235
Functional Description
2.6.2.5 Permanent Wake-Up Search (PWUS)
In this mode the receiver will work in Fast Fall Back Mode, but it will not go back to the
SLEEP state after the last configuration has been searched. Instead, it will start again
from the beginning (Configuration A) until the On time has elapsed. The timing
calculation can be seen in Figure 86. Ultrafast Fall Back to SLEEP functionality can be
used as well.
Only the following receive modes (see Chapter 2.5.1.2 Data Interface) can be used:
• Packet Oriented FIFO Mode (POF)
• Packet Oriented Transparent Payload Mode (POTP)
• Transparent Mode - Chip Data and Strobe (TMCDS)
Single Config
run mode
A A A A AA
RX polling
sleep mode
T
MasterPeriod = TAON + TOFF
T
AON
T
OFF
T
MasterPeriod
Multi Config
run mode
A B A B A
RX polling
TMasterPeriod = TAON + TOFF
sleep mode
T
AON
T
OFF
T
MasterPeriod
Figure 86
Permanent Wake-Up Search
Data Sheet
121
V1.0, 2010-02-19