ICS8520 Datasheet, PDF (5/8 Pages) Integrated Circuit Systems – LOW SKEW, 1-TO-16 DIFFERENTIAL-TO-3.3V LVHSTL FANOUT BUFFER

Integrated
Circuit
Systems, Inc.
PRELIMINARY
ICS8520
LOW SKEW, 1-TO-16
DIFFERENTIAL-TO-3.3V LVHSTL FANOUT BUFFER
TABLE 5. AC CHARACTERISTICS, VCC = 3.3V±5%, VCCO = 1.8V±0.2V, TA = 0°C TO 70°C
Symbol Parameter
Test Conditions
Minimum Typical Maximum Units
fMAX Maximum Input Frequency
500
MHz
tPD
Propagation Delay, Low-to-High; NOTE 1
0 < f ≤ 250MHz
1
1.6
ns
tsk(o) Output Skew; NOTE 2, 4
50
ps
tsk(pp) Part-to-Part Skew; NOTE 3, 4
250
ps
tR
Output Rise Time
20% to 80% @ 50MHz
300
700
ps
tF
Output Fall Time
20% to 80% @ 50MHz
300
700
ps
odc
Output Duty Cycle
47
53
%
All parameters measured at 250MHz unless noted otherwise
NOTE 1: Measured from the differential input crossing point to the differential ouput crossing point.
NOTE 2: Defined as skew between outputs at the same supply voltage and with equal load conditions.
Measured at the output differential cross points.
NOTE 3: Defined as skew between outputs on different devices operating at the same supply voltages
and with equal load conditions. Using the same type of inputs on each device, the outputs are measured at the differential
cross points.
NOTE 4: This parameter is defined in accordance with JEDEC Standard 65.
ICS8520DY
www.icst.com/products/hiperclocks.html
5
REV. B JULY 5, 2001