SP2209E Datasheet, PDF (8/15 Pages) Sipex Corporation – High ESD Dual Port RS-232 Transceiver

VIN
TX
C
A
3kΩ
VOUT
1000pF
VIN
A
RX
VOUT
150pF
C
Figure 3. Driver Propagation Delay and Transition
Time Test Circuit
Figure 4. Receiver Propagation Delay and Transition
Time Test Circuit
+3V
DRIVER
INPUT _0V
Data Transmission Rate > 460kbps, t_F<5ns, t_R<5ns
1.5V
1.5V
t_PHL
t_PLH
DRIVER ^VOH
0V
+3V
OUTPUT V_OL
t_{SKEW = |} t_{PHL -} t_{PLH |}
-3V
t_F
+3V
-3V
t_R
Figure 5. Driver Propagation Delays
RECEIVER ^+3V
INPUT _-3V
Data Transmission Rate > 460kbps, t_F<200ns, t_R<200ns
0V
t_PHL
0V
t_PLH
RECEIVER ^VOH _50%
OUTPUT V_OL
80%
t_{SKEW = |} t_{PHL -} t_{PLH |}
20%
t_F
20%
t_R
80%
Figure 6. Receiver Propagation Delays
SP2209E DS/06
SP2209E High ESD Dual Port RS-232 Transceivers
8
© Copyright 2000 Sipex Corporation