DIFFERENTIAL-TO-ECL/LVPECL FANOUT BUFFER
Description
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Integrated Circuit Systems, Inc.
ICS85310I-31
LOW SKEW, DUAL, 1-TO-5 2.
5V/3.
3V DIFFERENTIAL-TO-ECL/LVPECL FANOUT BUFFER
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: LVPECL, LVDS, 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: VCC = 2.
375V to 3.
8V, VEE = 0V • ECL mode operating voltage supply range: VCC = 0V, VEE = -3.
8V to -2.
375V • -40°C to 85°C ambient operating temperature • Lead-Free package fully RoHS compliant
GENERAL DESCRIPTION
The ICS85310I-31 is a low skew, high performance dual 1-to-5 Differential-to-2.
5V/3.
3V ECL/LVPECL HiPerClockS™ 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-31 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-31 ideal for those clock distribution applications demanding well defined performance and repeatability.
ICS
BLOCK DIAGRAM
CLKA nCLKA QA0 nQA0 QA1 nQA1 CLK_ENA D Q LE QA2 nQA2 QA3 nQA3 QA4 nQA4
PIN ASSIGNMENT
nQA0 nQA1 nQA2 VCCO VCCO
32 31 30 29 28 27 26 25 VCC CLK_ENA CLKA nCLKA CLK_ENB CLKB 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
VCCO nQB4 QB4 nQB3 QB3 nQB2 QB2 VCCO
ICS85310I-31
QA0
QA1
QA2
24 23 22 21 20 19 18 17
QA3 nQA3 QA4 nQA4 QB0 nQB0 QB1 nQB1
CLKB nCLKB
QB0 nQB0 QB1 nQB1
nCLKB VEE
CLK_ENB
D Q LE
QB2 nQB2 QB3 nQB3 QB4 nQB4
32-Lead LQFP 7mm x 7mm x 1.
4mm package body Y Package Top View
85310AYI-31
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