ICS85314I-11 Datasheet, PDF (1/18 Pages) Integrated Circuit Systems – LOW SKEW, 1-TO-5 DIFFERENTIAL-TO-2.5V/3.3V LVPECL FANOUT BUFFER

Integrated
Circuit
Systems, Inc.
ICS85314I-11
LOW SKEW, 1-TO-5
DIFFERENTIAL-TO-2.5V/3.3V LVPECL FANOUT BUFFER
GENERAL DESCRIPTION
FEATURES
The ICS85314I-11 is a low skew, high perfor- • 5 differential 2.5V/3.3V LVPECL outputs
ICS
HiPerClockS™
mance 1-to-5 Differential-to-2.5V/3.3V LVPECL
fanout buffer and a member of the HiPerClockS™
• Selectable differential CLKx, nCLKx inputs
family of High Performance Clock Solutions from • CLK0, nCLK0 and CLK1, nCLK1 pairs can accept the
ICS. The ICS85314I-11 has two selectable dif- following differential input levels: LVPECL, LVDS, LVHSTL,
ferential clock inputs. The CLK0, nCLK0 and CLK1, nCLK1 HCSL, SSTL
pairs can accept most standard differential input levels. The
clock enable is internally synchronized to eliminate runt clock ^{• Maximum output frequency: 700MHz}
pulses on the outputs during asynchronous assertion/ • Translates any single-ended input signal to 3.3V
deassertion of the clock enable pin.
LVPECL levels with resistor bias on nCLK input
Guaranteed output and part-to-part skew characteristics make
the ICS85314I-11 ideal for those applications demanding well
defined performance and repeatability.
• Output skew: 30ps (maximum)
• Part-to-part skew: 350ps (maximum)
• Propagation delay: 1.8ns (maximum)
• RMS phase jitter @ 155.52MHz (12kHz - 20MHz):
0.05ps (typical)
• LVPECL mode operating voltage supply range:
V = 2.375V to 3.8V, V = 0V
CC
EE
• -40°C to 85°C ambient operating temperature
• Available in both standard and lead-free RoHS-compliant
packages
BLOCK DIAGRAM
nCLK_EN
CLK0
nCLK0
00
CLK1
nCLK1
1¹
CLK_SEL
D
Q
CK
PIN ASSIGNMENT
Q0 1
20 VCC
nQ0 2
19 _{nCLK_EN}
Q1 3
18 _VCC
nQ1 4
17 _nCLK1
Q0
Q2 5
16 _CLK1
nQ0
nQ2 6
15 _RESERVED
Q3 7
14 _nCLK0
Q1
nQ3 8
13 _CLK0
nQ1
Q4 9
12 _{CLK_SEL}
Q2
nQ4 10 11 _VEE
nQ2
ICS85314I-11
Q3
20-Lead TSSOP
nQ3
6.5mm x 4.4mm x 0.92mm Package Body
Q4
nQ4
G Package
Top View
ICS85314I-11
20-Lead SOIC
7.5mm x 12.8mm x 2.3mm Package Body
M Package
Top View
85314AGI-11
www.icst.com/products/hiperclocks.html
1
REV. C MAY 24, 2005