sp331 Exar Corporation, sp331 Datasheet - Page 4

• Manufacturer Part Number: sp331
• Description: Programmable Dual Rs-232/rs-485 Transceiver
• Manufacturer: Exar Corporation

Figure 3. Driver Timing Test Load #2 Circuit
Date: 03-04-05
RECEIVER INPUT GRAPH
TEST CIRCUITS
Figure 1. Driver DC Test Load Circuit
Output
Under
Test
C
L
A
B
V
500Ω
OD
R
R
–0.6mA
V
–7V
OC
Programmable Dual RS-232/RS-485 Transceiver
S
S
1
2
RS-485 RECEIVER
–3V
V
CC
4
Figure 2. Driver/Receiver Timing Test Circuit
1 Unit Load
Maximum Input Current
versus Voltage
DI
+6V
A
B
+1.0mA
+12V
R
L
C
C
L1
L2
© Copyright 2005 Sipex Corporation
A
B
RO
15pF