ICS85210-21 Datasheet, PDF (1/13 Pages) Integrated Circuit Systems – LOW SKEW, DUAL, 1-TO-5 DIFFERENTIAL-TO-HSTL FANOUT BUFFER

Integrated
Circuit
Systems, Inc.
ICS85210-21
LOW SKEW, DUAL, 1-TO-5
DIFFERENTIAL-TO-HSTL FANOUT BUFFER
GENERAL DESCRIPTION
The ICS85210-21 is a low skew, high perfor-
ICS
mance dual 1-to-5 Differential-to-HSTL Fanout
HiPerClockS™ _{Buffer and a member of the HiPerClockS™}
family of High Performance Clock Solutions
from ICS. The CLKx, nCLKx pairs can accept
most standard differential input levels. The ICS85210-21 is
characterized to operate from a 3.3V power supply.
Guaranteed output and part-to-part skew characteris-
tics make the ICS85210-21 ideal for those clock distri-
bution applications demanding well defined perfor-
mance and repeatability.
FEATURES
• Dual 1-to-5 HSTL bank outputs
• 2 selectable differential clock input pairs
• CLKx, nCLKx pairs can accept the following differential
input levels: LVPECL, LVDS, HSTL, SSTL, HCSL
• Maximum output frequency: 650MHz
• Translates any single ended input signal to 3.3V
HSTL levels with resistor bias on nCLKx inputs
• Output skew: 50ps (maximum)
• Part-to-part skew: 350ps (maximum)
• Propagation delay: 2ns (maximum)
• 3.3V core, 1.8V output operating supply
• 0°C to 70°C ambient operating temperature
• Industrial temperature information available upon request
BLOCK DIAGRAM
CLK0
nCLK0
CLK1
nCLK1
QA0
nQA0
QA1
nQA1
QA2
nQA2
QA3
nQA3
QA4
nQA4
QB0
nQB0
QB1
nQB1
QB2
nQB2
QB3
nQB3
QB4
nQB4
PIN ASSIGNMENT
VDD
nc
CLK0
nCLK0
nc
CLK1
nCLK1
GND
32 31 30 29 28 27 26 25
1
24
2
23
3
22
4 _ICS85210-21 21
5
20
6
19
7
18
8
17
9 10 11 12 13 14 15 16
QA3
nQA3
QA4
nQA4
QB0
nQB0
QB1
nQB1
32-Lead LQFP
7mm x 7mm x 1.4mm package body
Y Package
Top View
85210AY-21
www.icst.com/products/hiperclocks.html
1
REV. A OCTOBER 6, 2003