SP503 Datasheet, PDF (11/29 Pages) Sipex Corporation – Multiprotocol Transceiver

+5V, ±5%
IN5819
22µF ⁺
16V
22µF ⁺
16V
22µF (V_CC decoupling)
+
+
All V_CC connections can be tied
together. Charge pump capacitors must
27 ^{22µF, 16V} 25
be placed as close to the package as
possible.
V_DD
26 _C1+
V_CC
200Ω
232Ω
-5V
107Ω
30 _{C1–Charge}
28
Pump
C₂₊
31 _C2–
232Ω
200Ω
200Ω
232Ω
-5V
V.35 External
Driver Output
Termination Resistors
107Ω
232Ω
+
32 ^{VSS GND}
200Ω
22µF, 16V
SP503
1
1
1
0
Ext.
Latch
1
1
1
0
Driver
Decode
Receiver
Decode
200Ω
232Ω
-5V
107Ω
232Ω
200Ω
50Ω
120Ω
50Ω
V.35 External
Receiver Input
Termination Resistors
50Ω
120Ω
50Ω
50Ω
120Ω
50Ω
Note: An external voltage of -5V, ±5% is needed for the driver output termination resistors.
These V.35 termination resistors comply with all the parameters specified in CCITT
Recommendation V.35. For other termination configurations, please consult factory.
Figure 6. Typical Operating Circuit
Date: 7/29/04
SP503 Multiprotocol Transceiver
11
© Copyright 2004 Sipex Corporation