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PDF SP502 Data sheet ( Hoja de datos )
| Número de pieza | SP502 | |
| Descripción | Multi-Mode Serial Transceiver | |
| Fabricantes | Sipex | |
| Logotipo |  |
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®
SP502
Multi–Mode Serial Transceiver
■ Single-Chip Serial Transceiver
Supports Industry-Standard
■ Software-Selectable Protocols:
— RS-232 (V.28)
— RS-422A (V.11, X.27)
— RS-449
— RS-485
— V.35
— EIA-530
■ Programmable Selection of Interface
■ +5V-Only Operation
■ Six (6) Drivers and Seven (7) Receivers
■ Surface Mount Packaging
DESCRIPTION…
The SP502 is a highly integrated serial transceiver that allows software control of its interface
modes. It offers hardware interface modes for RS-232 (V.28), RS-422A (V.11), RS-449, RS-485,
V.35, and EIA-530. The SP502 is fabricated using low–power BiCMOS process technology, and
incorporates a Sipex patented (5,306,954) charge pump allowing +5V only operation.
Drivers
Charge
Pump
SP502
Driver
Decode
Receivers
Receiver
Decode
Rev. 7/21/03
SP502 Multi-Mode Serial Transceiver
1
© Copyright 2003 Sipex Corporation
1 page  
AC CHARACTERISTICS
PARAMETER
SINGLE–ENDED MODE
RS-232
Driver Propagation Delay
tPHL
tPLH
tPHL
tPLH
Receiver Propagation Delay
MIN.
tPHL
tPLH
RS-423
Driver Propagation Delay
tPHL
tPLH
Receiver Propagation Delay
tPHL
tPLH
DIFFERENTIAL MODE
RS-485
Driver Propagation Delay
tPHL
tPLH
Receiver Propagation Delay
TYP. MAX.
1.7
1.1
2.0 8.0
2.0 8.0
1.0
1.0
2.0 8.0
2.0 8.0
1.0
1.0
200
200
tPHL
tPLH
RS-422
Driver Propagation Delay
tPHL
tPLH
Receiver Propagation Delay
200
200
200
200
tPHL
tPLH
V.35
Driver Propagation Delay
tPHL
tPLH
Receiver Propagation Delay
200
200
tPHL 200
tPLH 200
UNITS
CONDITIONS
Input = 0.8V to 2.0V; 60kHz
µs Unloaded
µs Unloaded
µs Loaded with 3kΩ and
2,500pF
µs Loaded with 3kΩ and
2,500pF
Input = 0V to 5.0V; 60kHz;
Note 1
µs
µs
Input = 0.8V to 2.0V; 60kHz
µs Loaded with 450Ω
µs Loaded with 450Ω
Input = -0.2V to 2.0V; ;
60kHz; Note 2
µs
µs
Input = 0V to 3.0V; 100kHz
Note 3
ns Loaded with 54Ω
ns Loaded with 54Ω
Input = a to GND;
B = -200mV to +200mV;
100kHz, Note 4
ns
ns
Input = 0V to 3.0V; 100kHz
Note 3
ns Loaded with 100Ω
ns Loaded with 100Ω
Input = a to GND;
B = -200mV to +200mV;
100kHz, Note 4
ns
ns
Input = 0V to 3.0V; 100kHz
Note 3
ns Loaded with 100Ω
ns Loaded with 100Ω
Input = a to GND;
B = -200mV to +200mV;
100kHz, Note 4
ns
ns
Rev. 7/21/03
SP502 Multi-Mode Serial Transceiver
5
© Copyright 2003 Sipex Corporation
5 Page 
+5V, ±5%
1N5819
D1 and D2 are Schottky diodes. They
are necessary to guard against VCC
rates of rise greater than 1V/µs, which
D2 22µF (VCC decoupling)
++
All VCC 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 +
VDD
26 C1+
VCC
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
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet SP502.PDF ] | |
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