REVISION B 11/9/15
8524 DATA SHEET
5 LOW SKEW, 1-TO-22
DIFFERENTIAL-TO-HSTL FANOUT BUFFER
TABLE 5. AC CHARACTERISTICS, V
DD
= 3.3V±5%, V
DDO
= 1.8V±0.2V, TA=0°C TO 85°C
TABLE 4D. LVPECL DC CHARACTERISTICS, V
DD
= 3.3V±5%, V
DDO
= 1.8V±0.2V, TA=0°C TO 85°C
Symbol Parameter Test Conditions Minimum Typical Maximum Units
I
IH
Input High Current PCLK, nPCLK V
DD
= V
IN
= 3.465V 150 µA
I
IL
Input Low Current PCLK, nPCLK V
DD
= 3.465V, V
IN
= 0V -150 µA
V
PP
Peak-to-Peak Input Voltage 0.3 1 V
V
CMR
Common Mode Input Voltage; NOTE 1, 2 GND + 1.5 V
DD
V
NOTE 1: Common mode voltage is defi ned as V
IH
.
NOTE 2: For single ended applications, the maximum input voltage for PCLK and nPCLK is V
DD
+ 0.3V.
Symbol Parameter Test Conditions Minimum Typical Maximum Units
f
MAX
Output Frequency 500 MHz
t
PD
Propagation Delay; NOTE 1 1.7 2.7 ns
tsk(o) Output Skew; NOTE 2, 4 80 ps
tsk(pp) Part-to-Part Skew; NOTE 3, 4 700 ps
tjit
Buffer Additive Phase Jitter, RMS;
refer to Additive Phase Jitter section
0.04 ps
t
R
/ t
F
Output Rise/Fall Time 20% to 80% 300 700 ps
t
S
Setup Time 1.0 ns
t
H
Hold Time 0.5 ns
odc Output Duty Cycle
ƒ ≤ 133MHz 49 51 %
133 < ƒ ≤ 266MHz 48 52 %
NOTE 1: Measured from the differential input crossing point to the differential output crossing point.
NOTE 2: Defi ned as skew between outputs at the same supply voltage and with equal load conditions.
Measured at the output differential cross points.
NOTE 3: Defi ned as skew between outputs on different devices operating at the same supply voltages
and with equal load conditions at the same temperature. Using the same type of inputs on each device,
the outputs are measured at the differential cross points.
NOTE 4: This parameter is defi ned in accordance with JEDEC Standard 65.
TABLE 4E. HSTL DC CHARACTERISTICS, V
DD
= 3.3V±5%, V
DDO
= 1.8V±0.2V, TA=0°C TO 85°C
Symbol Parameter Test Conditions Minimum Typical Maximum Units
V
OH
Output High Voltage; NOTE 1 1.0 1.4 V
V
OL
Output Low Voltage; NOTE 1 0 0.4 V
V
OX
Output Crossover Voltage; NOTE 2 40 60 %
V
SWING
Peak-to-Peak Output Voltage Swing 0.6 1.1 V
NOTE 1: Outputs terminated with 50Ω to ground.
NOTE 2: Defi ned with respect to output voltage swing at a given condition.
