DS90LV049Q_15 Datasheet, PDF (4/17 Pages) Texas Instruments – Automotive LVDS Dual Line Driver and Receiver Pair

DS90LV049Q
SNLS300D – MAY 2008 – REVISED APRIL 2013
www.ti.com
Switching Characteristics
Over supply voltage and operating temperature ranges, unless otherwise specified. ⁽¹⁾⁽²⁾
Parameter
Test Conditions
Min
Typ
Max
Units
LVDS Outputs (Driver Outputs)
t_PHLD
Differential Propagation Delay High to Low
t_PLHD
t_SKD1
t_SKD2
t_SKD3
t_TLH
t_THL
Differential Propagation Delay Low to High
Differential Pulse Skew |t_PHLD − t_PLHD| ^{(3) (4)}
Differential Channel-to-Channel Skew ^{(3) (5)}
Differential Part-to-Part Skew ^{(3) (6)}
Rise Time ⁽³⁾
Fall Time ⁽³⁾
t_PHZ
Disable Time High to Z
t_PLZ
Disable Time Low to Z
t_PZH
Enable Time Z to High
t_PZL
Enable Time Z to Low
f_MAX
Maximum Operating Frequency ⁽⁷⁾
LVCMOS Outputs (Receiver Outputs)
R_L = 100 Ω
(Figure 3 and Figure 4)
R_L = 100 Ω
(Figure 5 and Figure 6)
0.7
2
0.7
2
0
0.05
0.4
0
0.05
0.5
0
1.0
0.2
0.4
1
0.2
0.4
1
1.5
3
1.5
3
1
3
6
1
3
6
250
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
MHz
t_PHL
t_PLH
t_SK1
t_SK2
t_SK3
t_TLH
t_THL
t_PHZ
t_PLZ
t_PZH
t_PZL
f_MAX
Propagation Delay High to Low
Propagation Delay Low to High
Pulse Skew |t_PHL − t_PLH| ⁽⁸⁾
Channel-to-Channel Skew ⁽⁹⁾
Part-to-Part Skew ⁽¹⁰⁾
Rise Time⁽³⁾
Fall Time⁽³⁾
Disable Time High to Z
Disable Time Low to Z
Enable Time Z to High
Enable Time Z to Low
Maximum Operating Frequency ⁽¹¹⁾
(Figure 7 and Figure 8)
(Figure 9 and Figure 10)
0.5
2
3.5
0.5
2
3.5
0
0.05
0.4
0
0.05
0.5
0
1.0
0.3
0.9
1.4
0.3
0.75
1.4
3
5.6
8
3
5.4
8
2.5
4.6
7
2.5
4.6
7
250
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
MHz
(1) All typical values are given for: V_DD = +3.3 V, T_A = +25°C.
(2) Generator waveform for all tests unless otherwise specified: f = 1 MHz, Z_O = 50 Ω, t_r ≤ 1 ns, and t_f ≤ 1 ns.
(3) These parameters are ensured by design. The limits are based on statistical analysis of the device performance over PVT (process,
voltage, temperature) ranges.
(4) t_SKD1 or differential pulse skew is defined as |t_PHLD − t_PLHD|. It is the magnitude difference in the differential propagation delays between
the positive going edge and the negative going edge of the same driver channel.
(5) t_SKD2 or differential channel-to-channel skew is defined as the magnitude difference in the differential propagation delays between two
driver channels on the same device.
(6) t_SKD3 or differential part-to-part skew is defined as |t_{PLHD Max} − t_{PLHD Min}| or |t_{PHLD Max} − t_{PHLD Min}|. It is the difference between the
minimum and maximum specified differential propagation delays. This specification applies to devices at the same V_DD and within 5°C of
each other within the operating temperature range.
(7) 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%/55%, V_OD >
250 mV, all channels switching.
(8) t_SK1 or pulse skew is defined as |t_PHL − t_PLH|. It is the magnitude difference in the propagation delays between the positive going edge
and the negative going edge of the same receiver channel.
(9) t_SK2 or channel-to-channel skew is defined as the magnitude difference in the propagation delays between two receiver channels on the
same device.
(10) t_SK3 or part-to-part skew is defined as |t_{PLH Max} − t_{PLH Min}| or |t_{PHL Max} − t_{PHL Min}|. It is the difference between the minimum and maximum
specified propagation delays. This specification applies to devices at the same V_DD and within 5°C of each other within the operating
temperature range.
(11) f_MAX generator input conditions: t_r = t_f < 1 ns (0% to 100%), 50% duty cycle, V_ID = 200 mV, V_CM = 1.2 V . Output Criteria: duty cycle =
45%/55%, V_OH > 2.7 V, V_OL < 0.25 V, all channels switching.
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