TDA5231XT Infineon Technologies, TDA5231XT Datasheet - Page 83
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:
Dual:
ADDR:
1) use default value
2) the CIC filter delay = ASKDEL + 1
Dual:
ADDR:
Matched Data Filter
The CIC Filter together with the DC-offset canceller (realized as differentiator) is a
matched filter for one manchester coded bit.
The Matched Data Filter has two major tasks: to reconstruct Manchester-coded data of
the correct data rate, and to deliver a “quality” value, the so-called ASKNP value.
Data Sheet
7:0
5:3
2:0
5:0
Bit R/W Description
Bit R/W Description
Bit R/W Description
ADCSPLRDIV
W
ADATFILT0
W
W
ADATFILT1
W
0x6D
0x6F
0x70
ADCDIV: ADC sampling rate division factor.
ASKSCA: CIC-filter Input Scaling Factor
000b: default
ASKDEL: CIC-filter comb Section delay Factor
use always 110b
ASKDEC: CIC filter Decimation Factor
and
and
and
ASKDEC
ADCDIV
0x90
0x8F
0x8D
and BDATFILT0:
and BDATFILT1:
and BDCSPLRDIV:
=
=
round
round
-------------------- -
16 f ⋅
------------
f
f
ADC
Matched Filter Scaling and Delay
Matched Filter Decimation
f
sys
ADC
data
79
ADC dividing factor
–
1
–
f
ADC
1
f
ADC
=
1)
[
96…320kHz
=
---------------------------------- -
ADCDIV
1)2)
f
sys
Functional Description
]
+
Reset Value: 0x00
1
Reset Value: 0x00
Reset Value: 0x00
Version 4.0, 2007-06-01
TDA523x
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