TDA5230XT Infineon Technologies, TDA5230XT Datasheet - Page 61

• 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

T
B is calculated according Fast Fall Back to Sleep rules.
Figure 26
Calculation Example
The same example data is used as for Constant On/Off Time:
•
•
•
•
•
•
Calculation of the Master Period Time (T
The Master Period Time has to be short enough that inside of the (shorter) transmitted
Wake Up Pattern, the channel with the longest Wake Up sequence can be polled twice.
This calculation is equal to the calculation in Constant On/Off Time.
1) Calculation of Wake Up Times for Each Configuration and Channel:
T
T
T
T
Data Sheet
ON
WakeUp_ConfigAChannel1
WakeUp_ConfigAChannel2
WakeUp_ConfigAChannel3
WakeUp_ConfigBChannel1
Configuration A and B used
Three channels to be scanned in Configuration A, two channels in Configuration B
Configuration A Data Rate 10 kb/s, +/-10%, Configuration B Data Rate 5 kb/s, +/-10%
Length of usable Wake Up Pattern is 2000 bits (for both Data Rates)
Wake Up Criterion requires 10 bits equal to 20 chips
f
is 0.576 ms, Channel Hop Latency is 0.06 ms
sys
for Configuration A is calculated according Const On/Off rules, T
RX polling
RX polling
RX polling
is 13.225625 MHz (used for 433.92 MHz RF), this means Receiver Start Up Time
sleep mode
sleep mode
sleep mode
run mode
run mode
run mode
T
T
T
Mixed Mode
Single Channel, Single Config
A
AON
Multi Channel, Single Config
A
AON
Multi Channel, Dual Config
A
AON
1
1
1
T
T
A
AON
A
AON
2
2
T
BON
=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
T
T
A
AON
A
AON
3
3
B
1
T
T
T
T
MasterPeriod
T
B
T
2
OFF
BON
BON
MasterPeriod
MasterPeriod
T
OFF
T
OFF
57
MasterPeriod
)
Channels = 1
T
Channels = m
T
Channels Config A = m
Channels Config B = n
T
MasterPeriod
MasterPeriod
MasterPeriod
Functional Description
= T
= m*T
= m*T
Version 4.0, 2007-06-01
AON
ON
AON
AON
+ T
for Configuration
+ T
+ T
BON
BON
BON
+ T
+ T
TDA523x
+ T
OFF
OFF
OFF