TDA5235 Datasheet, PDF (97/259 Pages) Infineon Technologies AG – Enhanced Sensitivity Double-Configuration Receiver with Digital Baseband Processing

TDA5235
Functional Description
Configurations are switched via SFR bit MCS in the CMC0 register. The RF channel can
be selected by SFRs x_PLLINTC1, x_PLLFRAC0C1, x_PLLFRAC1C1,
x_PLLFRAC2C1, where x = A or B.
The configuration may be changed only in SLEEP or in HOLD Mode before returning to
the previously selected operation mode. This is necessary to restart the state machine
with defined settings at a defined state. Otherwise the state machine may hang up.
Reconfigurations in HOLD Mode are faster, because there is no Start-Up sequence.
The following flowchart and explanation show and help to understand the internal
behavior of the Finite State Machine (FSM) in Run Mode Slave.
Data Sheet
97
V1.0, 2010-02-19