854110AKILF Ver la hoja de datos (PDF) - Integrated Device Technology
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854110AKILF Datasheet PDF : 21 Pages
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2.5V Differential LVDS Clock Buffer
ICS854110I
DATA SHEET
General Description
The ICS854110I is a high-performance differential LVDS clock fanout
buffer. The device is designed for signal fanout of high-frequency, low
phase-noise clock signals. The selected differential input signal is
distributed to ten differential LVDS outputs. The ICS854110I is
characterized to operate from a 2.5V power supply. Guaranteed
output-to-output and part-to-part skew characteristics make the
ICS854110I ideal for those clock distribution applications demanding
well-defined performance and repeatability. The device offers an
output slew rate control with four pre-set output transition times to
solve crosstalk and EMI problems in complex board designs. A
fail-safe input design forces the outputs to a defined state if
differential clock inputs are open or shorted, see Table 3D.
Features
• Two differential input reference clocks
• Differential pair can accept the following differential input levels:
LVPECL, LVDS
• Ten LVDS outputs
• Maximum clock frequency: 200MHz
• Output slew rate control
• Fail-safe differential inputs
• LVCMOS interface levels for all control inputs
• Output skew: 260ps (maximum), for fastest slew rate setting of
0.650 V/ns
• Part-to-part skew: 1.2ns (maximum)
• Full 2.5V supply voltage
• Lead-free (RoHS 6) 32-Lead VFQFN and 32-Lead LQFP package
• -40°C to 85°C ambient operating temperature
Block Diagram
CLK0
nCLK0
CLK1
nCLK1
CLK_SEL Pulldown
0
fREF
1
ISET
RSET
Slew-Rate
Control
GND
nOE Pulldown
Q0
nQ0
Q1
nQ1
Q2
nQ2
Q3
nQ3
Q4
nQ4
Q5
nQ5
Q6
nQ6
Q7
nQ7
Q8
nQ8
Q9
nQ9
Pin Assignments
32 31 30 29 28 27 26 25
ISET 1
24 Q3
CLK_SEL 2
854110AKI
23 nQ3
CLK0 3
32-Lead VFQFN
22 Q4
5mm x 5mm x 0.925mm
nCLK0 4
package body
21 nQ4
GND 5
K package
20 Q5
CLK1 6
Top View
19 nQ5
nCLK1 7
18 Q6
nOE 8
17 nQ6
9 10 11 12 13 14 15 16
32 31 30 29 28 27 26 25
ISET 1
24 Q3
CLK_SEL 2
854110AYI
23 nQ3
CLK0 3
32-Lead LQFP
22 Q4
nCLK0 4 7mm x 7mm x 1.4mm 21 nQ4
package body
GND 5
Y package
20 Q5
CLK1 6
Top View
19 nQ5
nCLK1 7
18 Q6
nOE 8
17 nQ6
9 10 11 12 13 14 15 16
ICS854110AKI REVISION B JANUARY 27, 2011
1
©2011 Integrated Device Technology, Inc.
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