TDA5200_10 INFINEON [Infineon Technologies AG], TDA5200_10 Datasheet - Page 27

• Manufacturer Part Number: TDA5200_10
• Description: ASK Single Conversion Receiver
• Manufacturer: INFINEON [Infineon Technologies AG]

4.5
The threshold of the data slicer can be generated in two ways, depending on the signal coding scheme used. In
case of a signal coding scheme without DC content such as Manchester coding the threshold can be generated
using an external RC-Integrator as shown in
significantly larger than the longest period of no signal change
distortion low, the minimum value for
Figure 9
Another possibility for threshold generation is to use the peak detector in connection with two resistors and one
capacitor as shown in the following figure. The component values are depending on the coding scheme and the
protocol used.
Figure 10
Data Sheet
Data Slicer Threshold Generation
Data Slicer Threshold Generation with External R-C Integrator
Data Slicer Threshold Generation Utilizing the Peak Detector
data
filter
data
filter
Pins:
peak detector
R
Pins:
is 20 kΩ.
19
C
Figure
26
R
R
R
19
9. The time constant
27
20
U
threshold
20
data slicer
U
T
threshold
L
data slicer
within the data sequence. In order to keep
C
ASK Single Conversion Receiver
data out
25
T
data out
25
A
of the RC-Integrator has to be
Revision 3.0, 2010-12-28
Applications
TDA 5200