DS21354/DS21554 3.3V/5V E1 Single-Chip Transceivers
Figure 15-1. Basic External Analog Connections
0.47
(nonpolarized)
VDD
DS21354/DS21554
Rt
Rt
DVDD
TTIP
E1 Transmit
Line
0.01
0.1
0.1
TRING
DVSS
N : 1
RVDD
RVSS
(See Note 1)
1 : 1
TVDD
TVSS
+
0.1
10
RTIP
E1 Receive
Line
RRING
MCLK
2.048MHz
Rr
0.1ꢀF
Rr
NOTE 1: ALL CAPACITORS VALUES ARE IN ꢀF.
NOTE 2: 10ꢀF CAPACITOR ON TVDD IS OF TANTALUM CONSTRUCTION.
NOTE 3: SEE TABLE 15-3 FOR TRANSFORMER SELECTION.
Figure 15-2. Optional Crystal Connection
XTALD
2.048MHz
DS21554
MCLK
C1
C2
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