TDA5220XT Infineon Technologies, TDA5220XT Datasheet - Page 27
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TDA5220XT
Manufacturer Part Number
TDA5220XT
Description
Manufacturer
Infineon Technologies
Datasheet
1.TDA5220XT.pdf
(51 pages)
Specifications of TDA5220XT
Operating Temperature (min)
-40C
Operating Temperature (max)
125C
Operating Temperature Classification
Automotive
Product Depth (mm)
4.4mm
Product Length (mm)
9.7mm
Operating Supply Voltage (min)
4.5V
Operating Supply Voltage (typ)
5V
Operating Supply Voltage (max)
5.5V
Lead Free Status / Rohs Status
Compliant
asymmetrical offset for the demodulation of long zeros the lower of the two FSK
frequencies should be chosen in the transmitter as the zero-symbol frequency.
In the following figure the shape of the above mentioned bandpass is shown.
Figure 10
The cutoff frequencies are calculated with the following formulas:
f
Example:
R1 = 100k
This leads tof
Preliminary Specification
3
is the 3dB cutoff frequency of the data filter - see Section 3.2.
v-3dB
gain (pin19)
0dB
3dB
C13 = 47nF
1
Frequency characteristic in case of FSK mode
v
= 44Hz and f
DC
0.18mV/kHz
f1
20dB/dec
2
= 485Hz
f
1
f
2
2
R
R
v
f
f2
3
1
1
2mV/kHz
27
f
330
330
1
f
1
3
dB
11 f
k
k
1
C
13
f3
-40dB/dec
V 1.1, 2004-10-20
Applications
TDA 5220
f