SP000202847 Infineon Technologies, SP000202847 Datasheet - Page 62
SP000202847
Manufacturer Part Number
SP000202847
Description
Manufacturer
Infineon Technologies
Datasheet
1.SP000202847.pdf
(186 pages)
Specifications of SP000202847
Operating Temperature (min)
-40C
Operating Temperature (max)
105C
Operating Temperature Classification
Industrial
Product Depth (mm)
4.4mm
Product Length (mm)
9.7mm
Lead Free Status / Rohs Status
Compliant
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T
2) Calculation of usable Wake Up Pattern Time:
The Wake Up Pattern time is the minimal duration of wake up patterns.
T
T
T
T
3) Calculation of the Master Period
T
shorter. In our example:
T
Calculation of the On Time
In Mixed Wake Up Mode, the On Time for Configuration A limits the search for a Wake
Up Criteria for each used channel in Configuration A. The On Time for Configuration B
limits the Wake Up search for all used channels in Configuration B. Therefore the On
Time is the sum of On Time for all used channels and configurations.
T
T
Calculation of the Off Time
The Off Time is the Master Period minus the sum of On Times for Configuration A and
the On Time for Configuration B.
T
Note: Use the TDA523x IAF Configuration Tool to translate the calculated values into
register settings. Enter On and Off Time as calculated. Watch the Master Period and
vary Off Time till the resulting Master Period is shorter than the result of the calculation.
Take care that T
calculated values!
2.4.6.5
When the SFR control bit PERMWUSEN is set and the Self Polling Mode is set to
Constant On/Off, the receiver will work in Fast Fall Back Mode but it will not go back to
the sleep state after the last channel has been searched. Instead, it will start again from
Data Sheet
WakeUp_ConfigBChannel2
Wakeup_PatternA
Wakeup_PatternB
usable_Wakeup_PatternA
usable_Wakeup_PatternB
MasterPeriod
MasterPeriod
ON_ConfigA
ON_ConfigB
OFF
=T
MasterPeriod
>T
>T
<T
Permanent Wake Up Search
is smaller then T
WakeUp_ConfigAChannel1
WakeUp_ConfigBChannel1..2
usable_Wakeup_PatternA
=Wake Up Pattern/(Data Rate*tolerance)=2000/(10 kb/s*1.1)=181.81 ms
=2000/(10 kb/s*1.1)=363.62ms
-3*T
ON
=T
=T
=0.06 ms+(7.625 bits+10 bits)/(5kb/s*0.9)=3.98 ms
ON_ConfigA
must be always longer and T
Wakeup_PatternA
Wakeup_PatternB
-T
usable_Wakeup_PatternA
=179.26 ms
ON_ConfigB
=2.55ms
=3.98 ms +3.98 ms =7.96 ms
-T
-T
WakeUp_ConfigAChannel1
WakeUp_ConfigBChannel1
=179.26 ms-3*2.55 ms-7.96 ms=163.65 ms
58
or T
MasterPeriod
usable_Wakeup_PatternB
=181.81ms-2.55ms=179.26 ms
=363.62ms-3.98ms=359.64 ms
always shorter than the
Functional Description
Version 4.0, 2007-06-01
whichever is
TDA523x
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