TDA5231XT Infineon Technologies, TDA5231XT Datasheet - Page 92
TDA5231XT
Manufacturer Part Number
TDA5231XT
Description
Manufacturer
Infineon Technologies
Datasheet
1.TDA5231XT.pdf
(186 pages)
Specifications of TDA5231XT
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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Dual:
ADDR:
FSK Demodulator:
The FSK Demodulator is based on a delay and multiply principle (DAM). The required
settings are the DAM delay, the decimation factor (IDDEC) of the data filter and a final
scaling (ID scaling).
ID decimation:
IDDEC...Integrate and Dump decimation
RFSKCIC...Decimation Factor FSK CIC Filter(=FSKFILBW0+1)
RDatafilter...Decimation Factor Data filter(=DATFILT1+1)
f
ID scaling:
IDSCA...Integrate and Dump scaling
IDDEC...Integrate and Dump decimation(=FSKDEMBW1)
The calculations above are fully automatically performed by the IAF TDA523x
Configuration Tool!
Data Sheet
6:4
3:0
Bit R/W Description
Data
...Datarate
AFSKFILBW1
W
W
0x7C
FSKSCA: FSK Pre Filter Scaling
FSKDEL: FSK Pre Filter Comb Delay Setting
use 1000b
&
0x9C
IDDEC
& BFSKFILBW1:
IDSCA
=
round
=
16
floor
*
FSK Pre Filter Scaling
R
(log
FSKCIC
88
2
(
*
IDDEC
f
SYS
R
Datafilter
+
*
1
))
f
Data
Functional Description
Reset Value: 0x00
Version 4.0, 2007-06-01
−
1
TDA523x
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