ICS8545-02 Datasheet, PDF (1/13 Pages) Integrated Device Technology – LOW SKEW, 1-TO-4 LVCMOS/LVTTL-TO-LVDS FANOUT BUFFER

LOW SKEW, 1-TO-4 LVCMOS/LVTTL-TO-LVDS
FANOUT BUFFER
ICS8545-02
Description
The ICS8545-02 is a low skew, high performance
ICS
1-to-4 LVCMOS/LVTTL-to-LVDS Clock Fanout
HiPerClockS™ _{Buffer and a member of the HiPerClockS™ family of}
High Performance Clock Solutions from IDT.
Utilizing Low Voltage Differential Signaling (LVDS)
the ICS8545-02 provides a low power, low noise, solution for
distributing clock signals over controlled impedances of 100Ω. The
ICS8545-02 accepts an LVCMOS/LVTTL input level and translates
it to 3.3V LVDS output levels.
Guaranteed output and part-to-part skew characteristics make the
ICS8545-02 ideal for those applications demanding well defined
performance and repeatability.
Features
• Four differential LVDS output pairs
• Two LVCMOS/LVTTL clock inputs to support redundant
or selectable frequency fanout applications
• Maximum output frequency: 350MHz
• Translates LVCMOS/LVTTL input signals to LVDS levels
• Output skew: 60ps (maximum)
• Part-to-part skew: 450ps (maximum)
• Propagation delay: 1.45ns (maximum)
• Additive phase jitter, RMS: 0.14ps (typical)
• Full 3.3Vsupply mode
• 0°C to 70°C ambient operating temperature
• Available in both standard (RoHS 5) and lead-free (RoHS 6)
packages
Block Diagram
CLK_EN ^Pullup
CLK1 ^Pulldown
00
CLK2 ^Pulldown
1¹
CLK_SEL ^Pulldown
nD
Q
LE
OE ^Pullup
Q0
nQ0
Q1
nQ1
Q2
nQ2
Q3
nQ3
Pin Assignment
GND 1
CLK_EN 2
CLK_SEL 3
CLK1 4
nc 5
CLK2 6
nc 7
OE 8
GND 9
VDD 10
20 Q0
19 nQ0
18 VDD
17 Q1
16 nQ1
15 Q2
14 nQ2
13 GND
12 Q3
11 nQ3
ICS8545-02
20-Lead TSSOP
6.5mm x 4.4mm x 0.925mm
package body
G Package
Top View
IDT™ / ICS™ LVDS FANOUT BUFFER
1
ICS8545AG-02 REV. A March 3, 2009