SP26LV431 Datasheet, PDF (3/13 Pages) Sipex Corporation – High Speed, +3.3V Quad RS-422 Differential Line Driver

ELECTRICAL CHARACTARISTICS (continued)
Unless otherwise noted, the following specifications apply for V_CC = +3.0V to +3.6V, T_amb = 25°C, t_r < 6ns, t_f < 6ns,
and all MIN and MAX limits apply across the recommended operating temperature range.
PARAMETERS
MIN. TYP. MAX. UNITS
CONDITIONS
SWITCHING CHARACTERISTICS
Propagation Delays, t_PLHD, t_PHLD
Skew
11 18
0.8 2
ns Figure 3
ns Figure 3, Note 4
Differential Ouput Rise and Fall Times, t_TLH, t_PHL
4 10 ns Figure 3
Output Enable Time, t_PZH
40 ns Figure 5
Output Enable Time, t_PZL
40 ns Figure 5
Output Disable Time, t_PHZ
35 ns Figure 5, Note 5
Output Disable Time, t_PLZ
35 ns Figure 5, Note 5
Power dissipation Capacitance, C_PD
50
pF Note 6
Input Capacitance, C_IN
6
pF
NOTE 1: Refer to EIA specifications for RS-422 serial protocol for exact test conditions.
NOTE 2: Measured per input. All other inputs at V_CC or GND.
NOTE 3: This is the current sourced when a high output is shorted to GND. Only one output at a time should be shorted.
NOTE 4: Skew is defined as the difference in propagation delays between complementary outputs at the 50% input.
NOTE 5: Output disable time is the delay from ENABLE or ENABLE being switched to the output transistors turning off.
The actual disable times are less than indicated due to the delay added by the RC time constant of the load.
NOTE 6: C_PD determines the no load dynamic power consumption, P_D = (C_PDV_CC2 f) + (I_CCV_CC), and the no load dynamic
current consumption, I_S = (C_PDV_CCf) + I_CC.
VCC
DI4
INPUTS
DI3 DI2 DI1
ENABLE
ENABLE
DO4A DO4B DO3A DO3B DO2A DO2B DO1A DO1B
GND
OUTPUTS
Figure 1. SP431 Block Diagram
Rev: A Date: 2/08/04
SP26LV431 High Speed, +3.3V Quad RS-422 Differential Line Driver
3
© Copyright 2004 Sipex Corporationn