ICS8535BI-01 Datasheet, PDF (1/16 Pages) Integrated Device Technology – LOW SKEW, 1-to-4 LVCMOS/LVTTL-TO- 3.3V LVPECL FANOUT BUFFER

PRELIMINARY
LOW SKEW, 1-to-4 LVCMOS/LVTTL-TO-
3.3V LVPECL FANOUT BUFFER
GENERAL DESCRIPTION
The ICS8535BI-01 is a low skew, high performance
ICS
1-to-4 LVCMOS/LVTTL-to-3.3V LVPECL fanout
HiPerClockS™ _{buffer and a member of the HiPerClockS™ family}
of High Performance Clock Solutions from IDT. The
ICS8535BI-01 has two single ended clock inputs.
the single ended clock input accepts LVCMOS or LVTTL input
levels and translate them to 3.3V LVPECL levels. The clock
enable is internally synchronized to eliminate runt clock pulses
on the output during asynchronous assertion/deassertion of
the clock enable pin.
Guaranteed output and part-to-part skew characteristics make
the ICS8535BI-01 ideal for those applications demanding well
defined performance and repeatability.
PIN ASSIGNMENT
nQ1 1
Q1 2
VCC 3
nQ0 4
Q0 5
VEE 6
CLK_EN 7
CLK_SEL 8
nc 9
CLK0 10
20 Q2
19 _nQ2
18 _VCC
17 _nc
16 _Q3
15 _nQ3
14 _VCC
13 _nc
12 _nc
11 _CLK1
ICS8535BI-01
20-Lead TSSOP
4.4mm x 6.5mm x 0.925mm body package
G Package
Top View
20 19 18 17 16
VCC 1
15 VCC
nQ3 2
14 Q2
Q3 3
13 nQ2
VEE 4
12 VCC
CLK_EN 5
11 nc
6 7 8 9 10
ICS8535BI-01
FEATURES
• Four differential 3.3V LVPECL outputs
• Selectable CLK0 or CLK1 inputs for redundant
and multiple frequency fanout applications
• CLK0 or CLK1 can accept the following input levels: LVCMOS
or LVTTL
• Maximum output frequency: 266MHz
• Translates LVCMOS and LVTTL levels to
3.3V LVPECL levels
• Output skew: TBD
• Part-to-part skew: TBD
• Propagation delay: 1.3ns (typical)
• Additive phase jitter, RMS: 0.04ps (typical)
• 3.3V operating supply
• 0°C to 70°C ambient operating temperature
• Available in both standard (RoHS 5) and lead-free (RoHS 6)
packages
BLOCK DIAGRAM
CLK_EN
D
Q
LE
CLK0
0
Q0
CLK1
1
nQ0
Q1
nQ1
CLK_SEL
Q2
nQ2
Q3
nQ3
ICS8535BI-01
20-Lead VFQFN
4mm x 4mm x 0.925mm body package
K Package
Top View
The Preliminary Information presented herein represents a product in pre-production. The noted characteristics are based on initial product characterization
and/or qualification. Integrated Device Technology, Incorporated (IDT) reserves the right to change any circuitry or specifications without notice.
IDT^™ / ICS^™ 3.3V LVPECL FANOUT BUFFER
1
ICS8535BGI-01 REV. A NOVEMBER 9, 2007