TDA5230XT Infineon Technologies, TDA5230XT Datasheet - Page 57

• Manufacturer Part Number: TDA5230XT
• Manufacturer: Infineon Technologies

Specifications of TDA5230XT

• 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

The Wake Up Time includes Receiver Start Up Time for the first channel scanned, or
Channel Hop Latency for the following channels plus 7.625 bits (The 7.625 bits are
required for synchronisation and Data Framer Latency) and Wake Up Criterion length at
minimal Data Rate.
T
T
T
T
T
2) Calculation of usable Wake Up Pattern Time:
The Wake Up Pattern time is the minimal duration of wake up patterns.
T
T
Note: In many transmit frame descriptions the Wake Up Pattern is terminated by a single
bit for synchronisation. In this case, the Wake Up Pattern has to be reduced by the
number of bits (or chips) used for TSI (See
The usable Wake Up Pattern Time is the Wake Up Pattern Time reduced by the longest
Wake Up Time of a channel in the related configuration. This is T
Configuration A, and for Configuration B the scanning of both channels requires the
same time.
T
T
3) Calculation of the Master Period Time
T
shorter. In our example:
T
Calculation of the On Time
In Constant On/Off Time Wake Up Mode, the On Time limits the search for a Wake Up
Criterion for each channel in both configurations. There is an independent On Time for
Configuration A channels, and a ON Time for Configuration B channels. The On Time in
each configuration has to be longer than the longest Wake Up Time in this configuration.
T
T
Data Sheet
WakeUp_ConfigAChannel1
WakeUp_ConfigAChannel2
WakeUp_ConfigAChannel3
WakeUp_ConfigBChannel1
WakeUp_ConfigBChannel2
Wakeup_PatternA
Wakeup_PatternB
usable_Wakeup_PatternA
usable_Wakeup_PatternB
MasterPeriod
MasterPeriod
ON_ConfigA
ON_ConfigB
>T
>T
<T
is smaller then T
WakeUp_ConfigAChannel1
WakeUp_ConfigBChannel1
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
=T
=T
=0.576 ms+(7.625 bits+10 bits)/(10kb/s*0.9)=2.55 ms
=0.06 ms+(7.625 bits+10 bits)/(10kb/s*0.9)=2.02 ms
=0.06 ms+(7.625 bits+10 bits)/(10kb/s*0.9)=2.02 ms
=0.06 ms+(7.625 bits+10 bits)/(5kb/s*0.9)=3.98 ms
=0.06 ms+(7.625 bits+10 bits)/(5kb/s*0.9)=3.98 ms
Wakeup_PatternA
Wakeup_PatternB
usable_Wakeup_PatternA
=179.26ms
=2.55ms
=3.98ms
-T
-T
WakeUp_ConfigAChannel1
WakeUp_ConfigBChannel1
53
Chapter 2.4.13 Frame
or T
usable_Wakeup_PatternB
=181.81ms-2.55ms=179.26ms
=363.62ms-3.98ms=359.64ms
Functional Description
WakeUp_ConfigAChannel1
Version 4.0, 2007-06-01
Synchronization).
whichever is
TDA523x
for