SN75LVDS179, SN75LVDS180, SN75LVDS050, SN75LVDS051
HIGH-SPEED DIFFERENTIAL LINE DRIVERS AND RECEIVERS
SLLS361A – JUNE 1999 – REVISED MARCH 2000
receiver switching characteristics over recommended operating conditions (unless otherwise
noted)
†
PARAMETER
Propagation delay time, low-to-high-level output
Propagation delay time, high-to-low-level output
Output signal rise time
TEST CONDITIONS
MIN TYP
MAX
6
UNIT
ns
t
t
t
t
t
t
t
t
t
t
t
2.1
2.1
0.6
0.7
PLH
PHL
r
6
ns
1.5
1.5
0.6
0.6
1
ns
C
= 10 pF,
L
Output signal fall time
ns
f
See Figure 6
‡
Pulse skew (|t
– t
|)
ns
sk(p)
sk(o)
sk(pp)
PZH
PZL
PHZ
PLZ
pHL pLH
§
Channel-to-channel output skew
ns
¶
Part-to-part skew
ns
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
25
25
25
25
ns
ns
See Figure 7
ns
ns
†
All typical values are at 25°C and with a 3.3-V supply.
‡
‡
‡
t
t
t
is the magnitude of the time difference between the high-to-low and low-to-high propagation delay times at an output
is the magnitude of the time difference between the outputs of a single device with all of their inputs connected together.
is the magnitude of the difference in propagation delay times between any specified terminals of two devices when both devices operate
sk(p)
sk(o)
sk(o)
with the same supply voltages, same temperature, and have identical packages and test circuits.
PARAMETER MEASUREMENT INFORMATION
driver
I
OY
Driver Enable
Y
Z
I
I
A
V
OD
V
V
OY
OZ
I
OZ
V
OY
2
V
I
V
OC
V
OZ
Figure 1. Driver Voltage and Current Definitions
7
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