TDA5230XT Infineon Technologies, TDA5230XT Datasheet - Page 91

• 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 selection is done with the registers FSKFILBW0 and FSKFILBW1.
1) Values are only ”about” values and should be used for orientation only. Bandwidth is also dependent on
THe CIC-Filter also requires a comb delay and a scaling. For the comb delay, a value of
8 must be used.
The scaling is calculated as below:
SCA... Scaling
R...Decimation Factor(=FSKFILBW0+1)
M...Comb Delay Value(=8 +1= 9)
The calculation above is fully automatically performed by the IAF TDA523x
Configuration Tool!
Dual:
ADDR:
Data Sheet
3:0
Bit R/W Description
Setting
+/-250
+/-125
+/-62.5
+/-31.25
IF Filter, FSK Deviation, Data Rate and different configuration settings.
AFSKFILBW0
W
0x7B
FSKDEC: FSK Pre Filter Decimation Factor
0001b: ±250 prefilter bandwidth .. recommended
0011b: ±125 prefilter bandwidth
0111b: ±62.5 prefilter bandwidth
1111b: ±31.25 prefilter bandwidth
and
0x9B
+/-80kHz
+/-50kHz
+/-40kHz
+/-20kHz
SCA
Typical 3dB Bandwidth
and BFSKFILBW0:
=
14
−
round
87
FSK Pre Filter Decimation
[
log
1)
2
(
R
0001b recommended
0011b
0111b
1111b
FSKDEC Setting
*
M
)
+
Functional Description
4
]
Reset Value: 0x00
Version 4.0, 2007-06-01
TDA523x