Datasheet
PECL DC CHARACTERISTICS
(1)
(V
CC
= 3.3 V, GND = 0.0 V
(2)
TTL DC CHARACTERISTICS
(1)
(V
CC
= 3.3 V; T
A
= – 40 ° C to 85 ° C)
AC CHARACTERISTICS
(1)
(V
CC
= 3.3 V; GND = 0.0 V)
SN65LVELT22
www.ti.com
............................................................................................................................................................................................ SLLS928 – DECEMBER 2008
– 40 ° C 25 ° C 85 ° C
CHARACTERISTICS UNIT
MIN TYP MAX MIN TYP MAX MIN TYP MAX
I
CC
Power Supply Current 23 33 25 33 26 33 mA
V
OH
Output HIGH Voltage
(3)
2275 2317 2420 2275 2331 2420 2275 2343 2420 mV
V
OL
Output LOW Voltage
(3)
1490 1558 1680 1490 1556 1680 1490 1555 1680 mV
(1) Device will meet the specifications after thermal balance has been established when mounted in a socket or printed circuit board with
maintained transverse airflow greater than 500 lfpm. Electrical parameters are assured only over the declared operating temperature
range. Functional operation of the device exceeding these conditions is not implied. Device specification limit values are applied
individually under normal operating conditions and not valid simultaneously.
(2) Input parameters vary 1:1 with V
CC
. V
CC
can vary ± 0.15 V
(3) Outputs are terminated through a 50- Ω resistor to V
CC
– 2.0 V.
CHARACTERISTIC CONDITION MIN TYP MAX UNIT
I
IH
Input HIGH current V
IN
= 2.7 V 20 µ A
I
IHH
Input HIGH current max V
IN
= V
CC
100 µ A
I
IL
Input LOW current V
IN
= 0.5 V – 0.2 mA
V
IK
Input clamp diode voltage I
IN
= – 18 mA – 1.2 V
V
IH
Input HIGH voltage 2.0 V
V
IL
Input LOW voltage 0.8 V
(1) Device will meet the specifications after thermal balance has been established when mounted in a socket or printed circuit board with
maintained transverse airflow greater than 500 lfpm. Electrical parameters are assured only over the declared operating temperature
range. Functional operation of the device exceeding these conditions is not implied. Device specification limit values are applied
individually under normal operating conditions and not valid simultaneously.
– 40 ° C 25 ° C 85 ° C
CHARACTERISTIC UNIT
MIN TYP MAX MIN TYP MAX MIN TYP MAX
f
MAX
Max switching frequency
(2)
, see Figure 5 1750 1750 1700 MHz
t
PLH/
t
PHL
Propagation delay to output at 1.5V, see 200 425 550 200 445 550 200 460 550 ps
Figure 4
Within – device skew
(3)
20 50 20 50 20 50
t
SKEW
ps
Device-to-device skew
(4)
30 100 30 100 30 100
t
JITTER
Random clock jitter (RMS) 0.5 1.0 0.5 1.0 0.5 1.0 ps
t
r
/t
f
Output rise/fall times Q (20% – 80%) 300 500 300 500 300 500 ps
(1) Device will meet the specifications after thermal balance has been established when mounted in a socket or printed circuit board with
maintained transverse airflow greater than 500 lfpm. Electrical parameters are assured only over the declared operating temperature
range. Functional operation of the device exceeding these conditions is not implied. Device specification limit values are applied
individually under normal operating conditions and not valid simultaneously.
(2) Maximum switching frequency measured at output amplitude of 300 mV
pp
.
(3) This is measured between outputs under the identical transitions and conditions on any one device.
(4) Device-Device Skew is defined as identical transitions at identical V
CC
levels.
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