SP3080E Datasheet, PDF (18/25 Pages) Sipex Corporation – Advanced-Failsafe RS-485/RS-422 Transceiver 1/8th Unit Load, Slew-Limited, ±15kV ESD-Protected

Receiver Enable and Disable Times Test Circuit
1.5V
S3
B
-1.5V
AR
S1
1kΩ
S2
RE
C_L= 15pF
GENERATOR
50Ω
Test Circuits
Vcc
Receiver Enable and DisableTiming Diagram
S1 is open, S2 is closed, S3 = 1.5V
3V
RE
1.5V
t t ZH, ZH(SHDN)
VOH
OUT
VOH /2
0V
S1 is closed, S2 is open, S3 = -1.5V
3V
RE
1.5V
0V
t t ZL, ZL(SHDN)
VCC
OUT
VOL= VCC /2
VOL
S1 is open, S2 is closed, S3 = 1.5V
3V
RE
1.5V
t_HZ
0.25V
VOH
OUT
0V
S1 is closed, S2 is open, S3 = -1.5V
RE
1.5V
tLZ
3V
0V
VCC
OUT
0.25V
VOL
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com
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SP3080E-SP3088E_100_062309