PI90LVB179/PI90LVB180/
PI90LVB050/PI90LVB051
3.3V Boost LVDS High-Speed Differential Line Drivers & Receivers
Receiving Switching Characteristics (Over recommended operating conditions unless otherwise noted).
Parameter
Test Conditions
Min.
Typ.†
Max. Units
tPLH
Propagation delay time, low-to-high-level output
Propagation delay time, lhigh-to-low-level output
1.9
2.9
tPHL
2.4
0.1
3.3
ns
0.4
tsk(p)
tsk(pp)**
tsk(o)
tr
Pulse skew (tPHL – tPLH
)
CL = 10pF
See Figure 6
Part-part-part skew**
1.3
Channel-to-channel skew
40
80
1.7
2.1
2.4
5.9
3.2
7.8
ps
ns
Output signal rise time
1.1
1.3
1.6
4.1
2.5
6.0
tf
Output signal fall time
tPZH
tPZL
tPHZ
tPLZ
Propagation delay time, high-level-to-high-impedance output
Propagation delay time, low-level-to-low-impedance output
Propagation delay time, high-impedance-to-high-level output
Propagation delay time, low-impedance-to-high-level output
See Figure 7
†All typical values are at 25°C with a 3.3V supply
**tsk(pp) is magnitude of the difference in propagation delay times between any specific terminals of two devices (all things being equal)
ParameterMeasurementInformation
D
EN
D
OD+
D
D
OUT+
I
I
D
IN
V
V
V
2
OD
OD+ OD+
Driver
V
OD+
OUT–
V
OC
V
I
V
OD–
Figure 1. Driver Voltage and Current Definitions
PS8540
05/01/01
5
PERICOM [ PERICOM SEMICONDUCTOR CORPORATION ]
