Datasheet

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RECEIVER SUPPLY CURRENT
SUPPLY CURRENT
(1)
TRANSMITTER INPUT TIMING REQUIREMENTS
TRANSMITTER SWITCHING CHARACTERISTICS
SN75LVDT1422
SLLS653 – JUNE 2005
PARAMETER TEST CONDITIONS MIN TYP
(1)
MAX UNIT
f = 10 MHz 19 35
f = 25 MHz 27 42
f = 40 MHz 35 45
I
CC
Supply current (worst case) See Figure 1 and Figure 3 mA
f = 65 MHz 49 69
f = 85 MHz 60 81
f = 100 MHz 69 90
(1) All typical values are at V
CC
= 3.3 V, T
A
= 25 ° C.
PARAMETER TEST CONDITIONS MIN TYP
(2)
MAX UNIT
I
CC(DIS)
Disable supply current TX/RX ENABLEs = GND 150 800 µA
(1) CMOS inputs have to connect to ground.
(2) All typical values are at V
CC
= 3.3 V, T
A
= 25 ° C.
PARAMETER TEST CONDITIONS MIN TYP
(1)
MAX UNIT
t
t(CLK)
Transition time, CLK IN See Figure 5 1.0 6.0
(2)
ns
t
c(CLK)
Input clock period, CLK IN 10 T 100 ns
t
wH(CLK)
Pulse duration, clock high, CLK IN See Figure 6 0.35T 0.5T 0.65T ns
t
wL(CLK)
Pulse duration, clock low, CLK IN 0.35T 0.5T 0.65T ns
t
t(EN)
Transition time, TX ENABLE, TAx/TBx 1.5 6.0 ns
(1) All typical values are at V
CC
= 3.3 V, T
A
= 25 ° C.
(2) Regulate clock frequency lower than 50 MHz. t
t(CLK)max
= 1/f x 50% x 60%.
PARAMETER TEST CONDITIONS MIN TYP
(1)
MAX UNIT
t
r
LVDS Rise time See Figure 4 0.38 0.7 ns
t
f
LVDS Fall time See Figure 4 0.38 0.7 ns
t
0
Output pulse position for bit 0 -0.8 0 0.8
t
1
Output pulse position for bit 1 13.49 14.29 15.09
t
2
Output pulse position for bit 2 27.77 28.57 29.37
t
3
Output pulse position for bit 3 f = 10 MHz, See Figure 12 42.06 42.86 43.66 ns
t
4
Output pulse position for bit 4 56.34 57.14 57.94
t
5
Output pulse position for bit 5 70.63 71.43 72.23
t
6
Output pulse position for bit 6 84.91 85.71 86.51
t
0
Output pulse position for bit 0 –0.45 0 0.45
t
1
Output pulse position for bit 1 5.26 5.71 6.16
t
2
Output pulse position for bit 2 10.98 11.43 11.83
t
3
Output pulse position for bit 3 f = 25 MHz, See Figure 12 16.69 17.14 17.54 ns
t
4
Output pulse position for bit 4 22.41 22.86 23.26
t
5
Output pulse position for bit 5 28.12 28.57 28.97
t
6
Output pulse position for bit 6 33.84 34.29 34.69
(1) All typical values are at V
CC
= 3.3 V, T
A
= 25 ° C.
7