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SN65LVDS179 Datasheet(PDF) 6 Page - Texas Instruments

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Part No. SN65LVDS179
Description  HIGH-SPEED DIFFERENTIAL LINE DRIVERS AND RECEIVERS
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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SN65LVDS179 Datasheet(HTML) 6 Page - Texas Instruments

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RECEIVER ELECTRICAL CHARACTERISTICS
DRIVER SWITCHING CHARACTERISTICS
RECEIVER SWITCHING CHARACTERISTICS
SN65LVDS179,, SN65LVDS180
SN65LVDS050, SN65LVDS051
SLLS301M – APRIL 1998 – REVISED JANUARY 2007
over recommended operating conditions (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP(1)
MAX
UNIT
VIT+
Positive-going differential input voltage threshold
50
See Figure 5 and Table 1
mV
VIT-
Negative-going differential input voltage threshold
–50
IOH = -8 mA
2.4
VOH
High-level output voltage
V
IOH = -4 mA
2.8
VOL
Low-level output voltage
IOL = 8 mA
0.4
V
VI = 0
–2
–11
–20
II
Input current (A or B inputs)
µA
VI = 2.4 V
–1.2
–3
II(OFF)
Power-off input current (A or B inputs)
VCC = 0
±20
µA
IIH
High-level input current (enables)
VIH = 5 V
±10
µA
IIL
Low-level input current (enables)
VIL = 0.8 V
±10
µA
IOZ
High-impedance output current
VO = 0 or 5 V
±10
µA
CI
Input capacitance
5
pF
(1)
All typical values are at 25°C and with a 3.3-V supply.
over recommended operating conditions (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP(1)
MAX
UNIT
tPLH
Propagation delay time, low-to-high-level output
1.7
2.7
ns
tPHL
Propagation delay time, high-to-low-level output
1.7
2.7
ns
RL = 100 Ω,
tr
Differential output signal rise time
0.8
1
ns
CL = 10 pF,
tf
Differential output signal fall time
0.8
1
ns
See Figure 2
tsk(p)
Pulse skew (|tpHL - tpLH|)(2)
300
ps
tsk(o)
Channel-to-channel output skew(3)
150
ps
ten
Enable time
4.3
10
ns
See Figure 4
tdis
Disable time
3.1
10
ns
(1)
All typical values are at 25°C and with a 3.3-V supply.
(2)
tsk(p) is the magnitude of the time difference between the high-to-low and low-to-high propagation delay times at an output.
(3)
tsk(o) is the magnitude of the time difference between the outputs of a single device with all of their inputs connected together.
over recommended operating conditions (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP(1)
MAX
UNIT
tPLH
Propagation delay time, low-to-high-level output
3.7
4.5
ns
tPHL
Propagation delay time, high-to-low-level output
3.7
4.5
ns
CL = 10 pF,
tsk(p)
Pulse skew (|tpHL - tpLH|)(2)
0.3
ns
See Figure 6
tr
Output signal rise time
0.7
1.5
ns
tf
Output signal fall time
0.9
1.5
ns
tPZH
Propagation delay time, high-impedance-to-high-level output
2.5
ns
tPZL
Propagation delay time, high-impedance-to-low-level output
2.5
ns
See Figure 7
tPHZ
Propagation delay time, high-level-to-high-impedance output
7
ns
tPLZ
Propagation delay time, low-level-to-high-impedance output
4
ns
(1)
All typical values are at 25°C and with a 3.3-V supply.
(2)
tsk(p) is the magnitude of the time difference between the high-to-low and low-to-high propagation delay times at an output.
6
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