ICS85310I-21 Datasheet, PDF (1/15 Pages) Integrated Circuit Systems – LOW SKEW, DUAL, 1-TO-5 DIFFERENTIAL-TO-2.5V/3.3V ECL/LVPECL FANOUT BUFFER

Integrated
Circuit
Systems, Inc.
ICS85310I-21
LOW SKEW, DUAL, 1-TO-5
DIFFERENTIAL-TO-2.5V/3.3V ECL/LVPECL FANOUT BUFFER
GENERAL DESCRIPTION
The ICS85310I-21 is a low skew, high perfor-
ICS
mance dual 1-to-5 Differential-to-2.5V/3.3V
HiPerClockS™ _{ECL/LVPECL Fanout 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 ICS85310I-21 is characterized to operate from either a
2.5V or a 3.3V power supply. Guaranteed output and part-
to-part skew characteristics make the ICS85310I-21 ideal
for those clock distribution applications demanding well
defined performance and repeatability.
FEATURES
• 2 differential 2.5V/3.3V LVPECL / ECL bank outputs
• 2 differential clock input pairs
• CLKx, nCLKx pairs can accept the following differential
input levels: LVDS, LVPECL, LVHSTL, SSTL, HCSL
• Maximum output frequency: 700MHz
• Translates any single ended input signal to 3.3V
LVPECL levels with resistor bias on nCLKx input
• Output skew: 25ps (typical)
• Part-to-part skew: 270ps (typical)
• Propagation delay: 1.7ns (typical)
• Additive phase jitter, RMS: <0.13ps (typical)
• LVPECL mode operating voltage supply range:
V_CC = 2.375V to 3.8V, V_EE = 0V
• ECL mode operating voltage supply range:
V_CC = 0V, V_EE = -3.8V to -2.375V
• -40°C to 85°C ambient operating temperature
• Lead-Free package fully RoHS complaint
BLOCK DIAGRAM
CLKA
nCLKA
CLKB
nCLKB
QA0
nQA0
QA1
nQA1
QA2
nQA2
QA3
nQA3
QA4
nQA4
QB0
nQB0
QB1
nQB1
QB2
nQB2
QB3
nQB3
QB4
nQB4
PIN ASSIGNMENT
VCC
nc
CLKA
nCLKA
nc
CLKB
nCLKB
VEE
32 31 30 29 28 27 26 25
1
24
2
23
3
22
4 _ICS85310I-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
85310AYI-21
www.icst.com/products/hiperclocks.html
1
REV. D JUNE 30, 2005