DS90LV049Q Datasheet, PDF (5/14 Pages) Texas Instruments – DS90LV049Q Automotive LVDS Dual Line Driver and Receiver Pair

Note 5: Current into device pins is defined as positive. Current out of device pins is defined as negative. All voltages are referenced to ground except: V_TH, V_TL,
V_OD and ΔV_OD.
Note 6: Both, driver and receiver inputs are static. All LVDS outputs have 100 Ω load. All LVCMOS outputs are floating. None of the outputs have any lumped
capacitive load.
Note 7: All typical values are given for: V_DD = +3.3 V, T_A = +25°C.
Note 8: These parameters are guaranteed by design. The limits are based on statistical analysis of the device performance over PVT (process, voltage,
temperature) ranges.
Note 9: The DS90LV049Q drivers are current mode devices and only function within datasheet specifications when a resistive load is applied to their outputs.
The typical range of the resistor values is 90 Ω to 110 Ω.
Note 10: 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.
Note 11: 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.
Note 12: 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.
Note 13: 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.
Note 14: 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.
Note 15: 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.
Note 16: Generator waveform for all tests unless otherwise specified: f = 1 MHz, Z_O = 50 Ω, t_r ≤ 1 ns, and t_f ≤ 1 ns.
Note 17: Output short circuit current (I_OS) is specified as magnitude only, minus sign indicates direction only.
Note 18: All input voltages are for one channel unless otherwise specified. Other inputs are set to GND.
Note 19: 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.
Note 20: 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.
Parameter Measurement Information
FIGURE 1. Driver V_OD and V_OS Test Circuit
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FIGURE 2. Driver Propagation Delay and Transition Time Test Circuit
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