DS90LV049 Datasheet, PDF (3/10 Pages) National Semiconductor (TI) – 3V LVDS Dual Line Driver with Dual Line Receiver

Electrical Characteristics (Continued)
Over supply voltage and operating temperature ranges, unless otherwise specified. (Notes 2, 4, 6)
Symbol
Parameter
Conditions
Pin
Min Typ Max Units
LVCMOS Output DC Specifications (Receiver Outputs)
V_OH
Output High Voltage
V_OL
Output Low Voltage
I_OZ
Output TRI-STATE Current
General DC Specifications
I_OH = -0.4 mA, V_ID= 200 mV
2.7
3.3
V
I_OL = 2 mA, V_ID = 200 mV
R_OUT
0.05 0.25
V
Disabled, V_OUT =0 V or V_DD
-10
±1
+10
µA
I_DD
Power Supply Current (Note 3) EN = 3.3 V
I_DDZ
TRI-State Supply Current
EN = 0 V
21
35
mA
V_DD
15
25
mA
Switching Characteristics
V_DD = +3.3V ± 10%, T_A = −40˚C to +85˚C (Notes 4, 13)
Symbol
Parameter
LVDS Outputs (Driver Outputs)
t_PHLD
t_PLHD
t_SKD1
Differential Propagation Delay High to Low
Differential Propagation Delay Low to High
Differential Pulse Skew |t_PHLD − t_PLHD|
(Notes 5, 7)
t_SKD2
Differential Channel-to-Channel Skew
(Notes 5, 8)
t_SKD3
Differential Part-to-Part Skew (Notes 5, 9)
t_TLH
Rise Time (Note 5)
t_THL
Fall Time (Note 5)
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 (Note 16)
LVCMOS Outputs (Receiver Outputs)
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| (Note 10)
Channel-to-Channel Skew (Note 11)
Part-to-Part Skew (Note 12)
Rise Time(Note 5)
Fall Time(Note 5)
Disable Time High to Z
Disable Time Low to Z
Enable Time Z to High
Enable Time Z to Low
Maximum Operating Frequency (Note 17)
Conditions
R_L = 100 Ω
(Figure 2 and Figure 3)
R_L = 100 Ω
(Figure 4 and Figure 5)
(Figure 6 and Figure 7)
(Figure 8 and Figure 9)
Min Typ Max Units
0.7
2
ns
0.7
2
ns
0
0.05
0.4
ns
0
0.05
0.5
ns
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
200
250
ns
ns
ns
ns
ns
ns
ns
MHz
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
200
250
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
MHz
Note 1: “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. They are not meant to imply that the devices
should be operated at these limits. The table of “Electrical Characteristics” specifies conditions of device operation.
Note 2: 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 ∆V_OD.
Note 3: 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 4: All typical values are given for: V_DD = +3.3 V, T_A = +25˚C.
Note 5: These parameters are guaranteed by design. The limits are based on statistical analysis of the device performance over PVT (process, voltage,
temperature) ranges.
Note 6: The DS90LV049’s 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 7: 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.
3
www.national.com