SWITCHING CHARACTERISTICS
SN65LVDS047
SLLS416B – JUNE 2000 – REVISED DECEMBER 2003
over recommended operating conditions (see
(1)
,
(2)
and
(3)
)(unless otherwise noted)
TYP
(
PARAMETER TEST CONDITIONS MIN MAX UNIT
4)
t
PHL
Differential propagation delay, high-to-low 1.4 1.8 2.8 ns
t
PLH
Differential propagation delay, low-to-high 1.4 1.8 2.8 ns
t
SK(p)
Differential pulse skew (t
PHLD -
t
PLHD
), see
(5)
50 300 ps
t
SK(o)
Channel-to-channel skew, see
(6)
40 300 ps
R
L
= 100 Ω ,, C
L
= 15 pF,
see Figure 2 and Figure 3
t
SK(pp)
Differential part-to-part skew, see
(7)
1 ns
t
SK(lim)
Differential part-to-part skew, see
(8)
1.2 ns
t
r
Rise time 0.5 1.5 ns
t
f
Fall time 0.5 1.5 ns
t
PHZ
Disable time high to Z 5.5 8 ns
t
PLZ
Disable time low to Z 5.5 8 ns
R
L
= 100 Ω ,, C
L
= 15 pF,
see Figure 4 and Figure 5
t
PZH
Enable time Z to high 8.5 12 ns
t
PZL
Enable time Z to low 8.5 12 ns
f
(MAX)
Maximum operating frequency, see
(9)
250 MHz
(1) Generator waveform for all tests unless otherwise: f = 1 MHz, Z
o
= 50 Ω , t
r
< 1 ns, and t
f
< 1 ns.
(2) C
L
includes probe and jig capacitance.
(3) All input voltages are for one channel unless otherwise specified. Other inputs are set to GND.
(4) All typical values are given for: V
CC
= 3.3 V, T
A
= 25°C.
(5) t
SK(p)
|t
PHL
-t
PLH
| is the magnitude difference in differential propagation delay time between the positive going edge andthe negative going
edge of the same channel.
(6) t
SK(o)
is the differential channel-to-channel skew of any event on the same device.
(7) t
SK(pp)
is the differential part-to-part skew, and is defined as the difference between the minimum and the maximum specified differential
propagation delays. This specification applies to devices at the same V
CC
and within 5°C of each other within the operating temperature
range.
(8) t
SK(lim)
part-to-part skew, is the differential channel-to-channel skew of any event between devices. This specification applies to devices
over recommended operating temperature and voltage ranges, and across process distribution. t
SK(lim)
is defined as|Min - Max|
differential propagation delay.
(9) f
(MAX)
generator input conditions: t
r
= t
f
< 1 ns (0% to 100%), 50% duty cycle, 0 V to 3 V. Output criteria: duty cycle = 45% to55,V
OD
>
250 mV, all channels switching
4
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