TDA5230XT Infineon Technologies, TDA5230XT Datasheet - Page 92

• 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

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



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1
TDA523x