ICS8516I Datasheet, PDF (1/13 Pages) Integrated Circuit Systems – LOW SKEW, 1-TO-16 DIFFERENTIAL-TO-LVDS CLOCK DISTRIBUTION CHIP

Integrated
Circuit
Systems, Inc.
ICS8516I
LOW SKEW, 1-TO-16
DIFFERENTIAL-TO-LVDS CLOCK DISTRIBUTION CHIP
GENERAL DESCRIPTION
The ICS8516I is a low skew, high performance
ICS
1-to-16 Differential-to-LVDS Clock Distribution
HiPerClockS™ _{Chip and a member of the HiPerClockS™}
family of High Performance Clock Solutions
from ICS. The ICS8516I CLK, nCLK pair can
accept any differential input levels and translates them to
3.3V LVDS output levels. Utilizing Low Voltage Differential
Signaling (LVDS), the ICS8516I provides a low power, low
noise, point-to-point solution for distributing clock signals
over controlled impedances of 100Ω.
Dual output enable inputs allow the ICS8516I to be used in
a 1-to-16 or 1-to-8 input/output mode. Guaranteed output
and part-to-part skew specifications make the ICS8516I ideal
for those applications demanding well defined performance
and repeatability.
FEATURES
• 16 Differential LVDS outputs
• CLK, nCLK pair can accept the following differential
input levels: LVPECL, LVDS, LVHSTL, HCSL, SSTL
• Maximum output frequency: 700MHz
• Translates any differential input signal (LVPECL, LVHSTL,
SSTL, DCM) to LVDS levels without external bias networks
• Translates any single-ended input signal to LVDS
with resistor bias on nCLK input
• Multiple output enable inputs for disabling unused
outputs in reduced fanout applications
• LVDS compatible
• Output skew: 65ps (maximum)
• Part-to-part skew: 550ps (maximum)
• Propagation delay: 2.4ns (maximum)
• 3.3V operating supply
• -40°C to 85°C ambient operating temperature
BLOCK DIAGRAM
CLK
nCLK
Q0
nQ0
Q1
nQ1
Q2
nQ2
Q3
nQ3
Q4
nQ4
Q5
nQ5
Q6
nQ6
Q7
nQ7
OE1
OE2
8516FYI
PIN ASSIGNMENT
Q15
nQ15
Q14
nQ14
Q13
nQ13
Q12
nQ12
Q11
nQ11
Q10
nQ10
Q9
nQ9
Q8
nQ8
VDD
nQ5
Q5
nQ4
Q4
VDD
GND
nQ3
Q3
nQ2
Q2
VDD
48 47 46 45 44 43 42 41 40 39 38 37
1
36
2
35
3
34
4
33
5
32
6
ICS8516I
31
7
30
8
29
9
28
10
27
11
26
12
25
13 14 15 16 17 18 19 20 21 22 23 24
VDD
nQ10
Q10
nQ11
Q11
VDD
GND
nQ12
Q12
nQ13
Q13
VDD
48-Lead LQFP
7mm x 7mm x 1.4mm body package
Y Package
Top View
www.icst.com/products/hiperclocks.html
1
REV. A JULY 30, 2004