TDA5240 Datasheet, PDF (111/284 Pages) Infineon Technologies AG – Enhanced Sensitivity Multi-Channel Quad-Configuration Receiver

TDA5240
Functional Description
- generation of external EOM will reinitialize also the TOTIM timers
- external EOM generation period should be smaller than the RUNIN length
(7 chips RUNIN = ~62 us @ 112 kchip/s , 5 SPI write commands = ~ 60 us @ 2 Mbit)
- minimal Symbol Sync active period = TVWIN, minimal Symbol Sync inactive period =
RUNIN
For protocols where no ASK/FSK switching is required between the Wake-up and
payload frame, the Wake-up and TSI pattern can share the same bits (e.g. Wake-up
pattern = ..00000, TSI = 000001, all bits Manchester encoded). This function can be
activated by the INITFRCS bit, so then there is no reset of the framer compare shift
register after a Wake-up event, which can shorten the required processing time.
Data Sheet
111
V4.0, 2010-02-19