TDA5235
Functional Description
In addition, it has to be considered that some data bits are required for synchronization
and internal latency (see Chapter 2.4.8.8 RUNIN, Synchronization Search Time and
Inter-Frame Time).
Calculation of the Off time:
The same general rules apply as for Constant On-Off Time. The Off time has to be short
enough that no wake-up pattern reception is missed.
2.6.2.4 Mixed Mode (MM, Const On-Off & Fast Fall Back to SLEEP)
This mode combines Constant-On Time and Fast Fall Back to SLEEP within different
configuration sets: Cfg.A: COO; Cfg.B: FFB
TON for Configuration A is always calculated according to Const On-Off rules.
T
ON for Configuration B is always calculated according to Fast Fall Back to SLEEP rules.
In Mixed Mode the On time of Configuration B is used for the FFB group. Below there
are shown the same scenarios as before, but now for Mixed Mode. Note that Single-
Configuration can be set, but is not recommended in Mixed Mode.
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
RX polling
A
sleep mode
TMasterPeriod = TAON + TBON + TOFF
T
AON
T
BON
T
OFF
T
MasterPeriod
Multi Config
run mode
A
B
RX polling
sleep mode
TMasterPeriod = TAON + TBON+ TOFF
T
AON
T
BON
T
OFF
T
MasterPeriod
Figure 85
Mixed Mode
Data Sheet
120
V1.0, 2010-02-19
INFINEON [ Infineon ]
