Datasheet

DS21354/DS21554 3.3V/5V E1 Single-Chip Transceivers
88 of 124
Figure 15-7. Protected Interface Example for the DS21354
COMPONENT FUNCTION
D1 TO D4 SCHOTTKY DIODE, INTERNATIONAL RECTIFIER 11DQ04
C1
0.1mF CERAMIC CAPACITOR IN PARALLEL WITH 10mF TANTALUM CAPACITOR
C2
0.47mF, NONPOLARIZED CERAMIC CONSTRUCTION
FUSE 1.25A SLO-BLO, LITTLEFUSE V2301.25
S SEMTECH LC01-6, 6V LOW CAPACITANCE TVS
X1, X2 TRANSPOWER PT314, LOW DCR
RTIP
RRING
TTIP
TRING
Receive
Line
DS21354
S
C1
D1
D2
D3 D4
1:1
Fuse
Fuse
Transmit
Line
Fuse
Fuse
0.1
2:1
470
470
C2
37/60 37/60
X1
X2
+3.3V
2.048MHz
MCLK
DVDD
DVSS
0.1
RVDD
RVSS
0.1
TVDD
TVSS
0.1
+3.3V
0.01
68
+
10
+
NOTE 1: ALL CAPACITOR VALUES ARE IN mF.
NOTE 2: THE 10mF CAPACITOR ON TVDD IS OF TANTALUM CONSTRUCTION.
NOTE 3: THE 68mF CAPACITOR IS REQUIRED TO MAINTAIN V
DD
DURING A TRANSIENT EVENT.