DS91M124_13 Datasheet, PDF (5/15 Pages) Texas Instruments – 125 MHz 1:4 M-LVDS Repeater with LVCMOS Input

DS91M124
www.ti.com
SNLS287E – AUGUST 2008 – REVISED APRIL 2013
DC Electrical Characteristics (continued)
Over supply voltage and operating temperature ranges, unless otherwise specified. ^(1)(2)(3)(4)
Parameter
Test Conditions
Min
I_B(OFF)
Driver High-Impedance Output Power-Off Current
I_AB(OFF)
C_A
C_B
C_AB
C_A/B
I_CCL
Driver High-Impedance Output Power-Off Current
(I_A(OFF) − I_B(OFF))
Driver Output Capacitance
Driver Output Capacitance
Driver Output Differential Capacitance
Driver Output Capacitance Balance (C_A/C_B)
Loaded Supply Current Enabled
V_A = 3.8V, V_B = 1.2V
DE_n = 0V
0
0V ≤ V_DD ≤ 1.5V
V_A = 0V or 2.4V, V_B = 1.2V
DE_n = 0V
−20
0V ≤ V_DD ≤ 1.5V
V_A = −1.4V, V_B = 1.2V
DE_n = 0V
−32
0V ≤ V_DD ≤ 1.5V
V_A = V_B, −1.4V ≤ V ≤ 3.8V
DE_n = 0V
−4
0V ≤ V_DD ≤ 1.5V
V_DD = 0V
R_L = 50Ω (All Outputs)
DI = V_DD or GND
DE_n = V_DD or GND (All
Outputs)
I_CCZ
No Load Supply Current Disabled
DI = V_DD or GND,
DE_n = GND (All Outputs)
Typ Max Units
μA
32
μA
20
μA
0
μA
4
7.8
pF
7.8
pF
3
pF
1
65
75
mA
19
24
mA
Switching Characteristics
Over supply voltage and operating temperature ranges, unless otherwise specified. ^(1)(2)(3)
Parameter
Test Conditions
t_PHL
t_PLH
t_SKD1
t_SKD2
t_SKD3
t_SKD4
t_TLH
t_THL
t_PHZ
t_PLZ
t_PZH
t_PZL
f_MAX
Differential Propagation Delay High to Low
Differential Propagation Delay Low to High
Differential Pulse Skew |t_PHL − t_PLH| ^{(4) (5)}
Channel-to-Channel Skew ^{(4) (6)}
Differential Part-to-Part Skew ^{(4) (7)}
(Constant T_A and VDD)
Differential Part-to-Part Skew ^{(4) (8)}
Rise Time ⁽⁴⁾
Fall Time ⁽⁴⁾
Disable Time High to Z
Disable Time Low to Z
Enable Time Z to High
Enable Time Z to Low
Maximum Operating Frequency ⁽⁴⁾
R_L = 50Ω
C_L = 5 pF,
C_D = 0.5 pF
Figure 7
Figure 8
R_L = 50Ω
C_L = 5 pF,
C_D = 0.5 pF
Figure 9
Figure 10
Min Typ Max Units
1.8 3.9 6.5 ns
1.8 3.9 6.5 ns
0
25 100 ps
0
70 250 ps
0
1.5
2
ns
0
4.7 ns
1.1 2.0 3.0 ns
1.1 2.0 3.0 ns
6
11
ns
6
11
ns
6
11
ns
6
11
ns
125
MHz
(1) The Electrical Characteristics tables list ensured specifications under the listed Recommended Operating Conditions except as
otherwise modified or specified by the Electrical Characteristics Conditions and/or Notes. Typical specifications are estimations only and
are not ensured.
(2) Typical values represent most likely parametric norms for V_DD = +3.3V and T_A = +25°C, and at the Recommended Operation Conditions
at the time of product characterization and are not ensured.
(3) C_L includes fixture capacitance and C_D includes probe capacitance.
(4) Specification is ensured by characterization and is not tested in production.
(5) t_SKD1, |t_PLHD − t_PHLD|, Pulse Skew, is the magnitude difference in differential propagation delay time between the positive going edge and
the negative going edge of the same channel.
(6) t_SKD2, Channel-to-Channel Skew, is the difference in propagation delay (t_PLHD or t_PHLD) among all output channels.
(7) t_SKD3, Part-to-Part Skew, is defined as the difference between the minimum and maximum 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.
(8) t_SKD4, 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_SKD4 is defined as |Max − Min|
differential propagation delay.
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