SP3080E Datasheet, PDF (16/25 Pages) Sipex Corporation – Advanced-Failsafe RS-485/RS-422 Transceiver 1/8th Unit Load, Slew-Limited, ±15kV ESD-Protected

Driver Differential Output Test Circuit
Test Circuits
DE = 3.3V
DI = 0 or Vcc _D
A/Y
VOD
375Ω
60Ω
B/Z
375Ω
V_CM
Driver Enable and Disable Times Test Circuit and Timing Diagram
0 or Vcc ^DI
Y S1
D
Z
C_L = 50pF
GENERATOR
50Ω
OUT
R_L = 500Ω
DE
OUT
t_ZL, t_ZL(SHDN)
V_OM = (V_OL + Vcc)/2
Vcc/2
Vcc
0
0.25V
0
t_LZ
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com
16
SP3080E-SP3088E_100_062309