TDA5225 Datasheet, PDF (63/176 Pages) Infineon Technologies AG – Enhanced Sensitivity Multi-Channel Quad-Configuration Receiver

TDA5225
Functional Description
WU Search With
Configuration B, C, D
From Compare of
Config A, B, C
3
Init
Loop Counter
Loop Counter Is
I nit ializ ed
4
Modulation
Switching CFG B,C,D
Modulation Selection
Depending On Register
Setting
5
Init With
CFG B,C,D
Initialize RX-Part
Configuration B ,C,D
Loop Counter == 10
Loop Counter == 11
6
Load
11
Load
11
Load
Channel 1
Channel 2
Channel 3
Initialize RX-Part
Multi Channel B,C,D
Initialize RX- Part
Multi Channel B,C,D
Initialize RX-Part
Multi Channel B,C,D
To Idle of
Config A
Const On Time
ON Time elapsed == 0
WU Found == 0
7
WU Search
CFG B,C,D COOT
Search For A Configurated
Wake Up Criteria
Const On Off
ON Time elapsed == X
WU Found== 1
ON Time elapsed == 1
WU Found == 0
Loop Counter Equal (B,C,D)NOC == 1
CfgLoopCounter <> CfgNr
9
Compare
Compare Loop Counter
Against Number Of
Channels
10
Loop Counter <> (B,C,D)NOC
Increment
Loop Counter
Incrementation Of
The Loop Counter
Loop Counter == (B,C,D)NOC
CfgLoopCounter == CfgNr
8
Store
Channel
Store The Current Channel
Configuration Into Actual
Channel Register
Generating CFG B ,C,D
Interrupt If Not Masked
Figure 42
To Init Loop Counter
of Config C,D
12 _{Run Mode}
Self Polling
Chip is permanently
active
Wake-up Search with Configuration B, C, D
Data Sheet
63
V1.0, 2010-02-19