SP331 Datasheet, PDF (4/13 Pages) Sipex Corporation – Programmable RS-232/RS-485 Transceiver

RECEIVER INPUT GRAPH
RS-485 RECEIVER
+1.0mA
–7V –3V
–0.6mA
+6V +12V
1 Unit Load
Maximum Input Current
versus Voltage
TEST CIRCUITS
A
R
V_OD
B
R ^VOC
Figure 1. Driver DC Test Load Circuit
C_L1
DI
A _RL
B
C_L2
A
RO
B
15pF
Figure 2. Driver/Receiver Timing Test Circuit
Output
Under
Test _CL
500Ω
S₁
V_CC
S₂
Figure 3. Driver Timing Test Load #2 Circuit
Date: 03-04-05
Programmable Dual RS-232/RS-485 Transceiver
4
© Copyright 2005 Sipex Corporation