ICS8521BYT View Datasheet(PDF) - Integrated Circuit Systems
Part Name
Description
MFG CO.
'ICS8521BYT' PDF : 15 Pages View PDF
Integrated
Circuit
Systems, Inc.
ICS8521
LOW SKEW, 1-TO-9
DIFFERENTIAL-TO-HSTL FANOUT BUFFER
TABLE 4D. LVPECL DC CHARACTERISTICS, VDD = 3.3V±5%, VDDO = 1.8V±0.2V, TA = 0°C TO 70°C
Symbol Parameter
Test Conditions
Minimum Typical
PCLK
IIH
Input High Current
nPCLK
VDD = VIN = 3.465V
VDD = VIN = 3.465V
IIL
PCLK
Input Low Current
nPCLK
VDD = 3.465V, VIN = 0V
VDD = 3.465V, VIN = 0V
-5
-150
VPP
Peak-to-Peak Input Voltage
0.3
VCMR
Common Mode Input Voltage;
NOTE 1, 2
1.5
NOTE 1: Common mode voltage is defined as VIH.
NOTE 2: For single ended applications, the maximum input voltage for PCLK and nPCLK is VDD + 0.3V.
Maximum
150
5
1
VDD
Units
µA
µA
µA
µA
V
V
TABLE 4E. HSTL DC CHARACTERISTICS, VDD = 3.3V±5%, VDDO = 1.8V±0.2V, TA = 0°C TO 70°C
Symbol Parameter
Test Conditions
VOH
Output High Voltage;
NOTE 1
V
OL
Output Low Voltage;
NOTE 1
VOX
VSWING
Output Crossover Voltage
Peak-to-Peak
Output Voltage Swing
NOTE 1: Outputs terminated with 50Ω to ground.
Minimum
1.0
0
40% x (VOH - VOL) + VOL
0.6
Typical
Maximum
1.4
0.4
60% x (VOH - VOL) + VOL
1.1
Units
V
V
V
V
TABLE 5. AC CHARACTERISTICS, VDD = 3.3V±5%, VDDO = 1.8V±0.2V, TA = 0°C TO 70°C
Symbol Parameter
Test Conditions
Minimum Typical Maximum
fMAX
Output Frequency
500
tPD
Propagation Delay; NOTE 1
IJ 250MHz
1
1.8
tsk(o) Output Skew; NOTE 2, 4
50
tsk(pp) Part-to-Part Skew; NOTE 3, 4
250
tR
Output Rise Time
20% to 80% @ 50MHz
300
700
tF
Output Fall Time
20% to 80% @ 50MHz
300
700
odc
Output Duty Cycle
48
52
All parameters measured at 250MHz unless noted otherwise.
NOTE 1: Measured from the differential input crossing point to the differential output crossing point.
Measured from VDD/2 to the output differential crossing point for single ended input levels.
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.
Units
MHz
ns
ps
ps
ps
ps
%
8521BY
www.icst.com/products/hiperclocks.html
5
REV. D JULY 7, 2004
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