SP334CT-L-TR Datasheet, PDF (5/14 Pages) Exar 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
A
V_OD
B
R
R ^VOC
Figure 1. Driver DC Test Load Circuit
Test Circuits
Receiver
Output
Test Point
1kΩ
S₁
V_CC
C_RL
1kΩ
S₂
Figure 2. Receiver Timing Test Load Circuit
C_L1
DI
A
R_L
B
C_L2
A
RO
B
15pF
Figure 3. Driver/Receiver Timing Test Circuit
Output
500Ω
Under
Test _CL
S₁
V_CC
S₂
Figure 4. Driver Timing Test Load #2 Circuit
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com

SP334_100_090909