Functional Description
2.5.4.2
Adaptive Receiver Characteristics
The integrated receiver uses an adaptively switched threshold detector. The detector controls
the switching of the receiver between two sensitivity levels. The hysteresis characteristics of
the receiver are shown in
figure 51.
V
SR2
-
V
SR1
Logical 0
+ 225 mV
V
SR2
-
V
SR1
Logical 0
+ 375 mV
0V
Logical 1
0V
Logical 1
- 225 mV
Logical 0
- 375 mV
Logical 0
State 1
High Sensitivity
with
V
TR1
= ± 225 mV
State 2
Low Sensitivity
with
V
TR2
= ± 375 mV
V
max
> 1 V or
V
max
< -1 V
in two Consecutive Frames
1
_
_
750 mV <
V
max
< 1 V
2
_
_
750 mV <
V
max
< 1 V
V
max
< 750 mV and
V
max
> -750 mV
V
SR2
-
V
SR1
= Input Voltage
V
TR1
V
TR2
= Threshold Voltages of the Receiver Threshold Detector
V
max
= Maximum Value of
V
SR2
-
V
SR1
during one Frame
ITD00774
Figure 51
Switching of the Receiver between High Sensitivity and Low Sensitivity
Semiconductor Group
90
INFINEON [ INFINEON TECHNOLOGIES AG ]
