RFX144V24-S23 and RFX96V24-S23 Modem Designer’s Guide
1070
11-3
1070F11-2
RECEIVER
ANALOG
INPUT
TRANSMITTER
DIGITAl
INPUT
A/D
CONVERTER
LOW PASS
FILTER
LOW PASS
FILTER
OPTIONAL HIGH
PASS FILTER
OPTIONAL DIG.
CABLE
EQUALIZER*
AUTOMATIC
GAIN
CONTROL
V.33/V.17, V.29
V.27 TER, V.21
RECEIVER
DATA
OUTPUT
CONTROL
INTEGRATED ANALOG
DIGITAL SIGNAL PROCESSOR
Figure 11-2. High Speed and V.21 Transmit Signal Path
×
+
Z
-1
×
×
×
Z
-1
×
×
×
Z
-1
Z
-1
×
×
×
+
×
×
Z
-1
Z
-1
×
×
×
+
×
×
1070F11-3 PDE BD
Z
-1
Z
-1
Z
-1
Z
-1
×
×
×
+
×
×
×
OUTPUT
a01/2
2
a02
a03
a04
0.5
a11/2
-a21/2
b11/2
b21/2
a12
-a22
b12
b22
a13
-a23
b13
b23
a14
-a24
b14
b24
2
INPUT
Figure 11-3. PDE Block Diagram
Содержание RFX144V24-S23
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