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.
VSR2 -VSR1
VSR2 -VSR1
+ 375 mV
Logical 0
Logical 1
Logical 0
Logical 0
Logical 1
+ 225 mV
0 V
0 V
- 225 mV
- 375 mV
Logical 0
State
1
State
2
High Sensitivity
Low Sensitivity
with VTR1 = ± 225 mV
with VTR2 = ± 375 mV
Vmax > 1V or Vmax < -1V
in two Consecutive Frames
1
2
_
_
_
_
<
<
<
<
750 mV Vmax 1V
750 mV Vmax 1V
Vmax < 750 mV and Vmax > -750 mV
V SR2 - V SR1 = Input Voltage
V TR1 V TR2 = Threshold Voltages of the Receiver Threshold Detector
Vmax = 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 ]
