SP502 Datasheet, PDF (11/32 Pages) Sipex Corporation – Multi-Mode Serial Transceiver

+5V, ±5%
1N5819
D₁ and D₂ are Schottky diodes. They
are necessary to guard against V_CC
rates of rise greater than 1V/µs, which
D₂
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.
can cause start–up problems.
22µF ⁺
V_DD
26 _C1+
V_CC
196Ω
422Ω
422Ω
16V
22µF ⁺
16V
1N5819
30 _{C1–Charge}
28
Pump
C₂₊
31 _C2–
196Ω
196Ω
422Ω
196Ω
422Ω
422Ω
V.35 External
Driver Output
Termination Resistors
422Ω
+
D₁
32 ^VSS
22µF, 16V
GND
SP502
1
1
1
0
Ext.
Latch
1
1
1
0
Driver
Decode
Receiver
Decode
47Ω
120Ω
47Ω
V.35 External
Receiver Input
Termination Resistors
47Ω
120Ω
47Ω
Figure 6. Typical Operating Circuit
Rev. 7/21/03
For NET2 certified circuits, please contact the factory.
SP502 Multi-Mode Serial Transceiver
11
© Copyright 2003 Sipex Corporation