SP334CT-L-TR Datasheet, PDF (6/14 Pages) Exar Corporation – Programmable RS-232/RS-485 Transceiver

SWITCHING WAVEFORMS
+3V
DRIVER INPUT
0V
B
DRIVER
OUTPUT _A
DIFFERENTIAL ^VO⁺
OUTPUT 0V
V_A –V_B ^VO^–
t _SKEW = |t _DPLH - t_DPHL|
f ≥1MHz; t_R ≤10ns; t_F ≤10ns
1.5V
t_PLH
t_PHL
V_O ^1/2VO
t_DPLH
t_DPHL
t_R
Figure 5. Driver Propagation Delays
1.5V
+3V
TXEN
0V
5V
A, B
V_OL
V_OH
A, B
0V
f = 1MHz; t_R < 10ns; t_F < 10ns
1.5V
t_ZL
2.3V _{Output normally LOW}
2.3V ^{Output normally HIGH}
t_ZH
1.5V
t_LZ
0.5V
0.5V
t_HZ
Figure 6. Driver Enable and Disable Times
1/2V_O
t_F
V_OD2⁺
A– B
V_OD2^–
f = 1MHz; t_R ≤10ns ; t_F ≤ 10ns
0V
INPUT
V_OH
RECEIVER OUT
V_OL
t_PHL
1.5V
OUTPUT
t_PLH
0V
1.5V
Figure 7. Receiver Propagation Delays
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com

SP334_100_090909