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SY89854U

Description
89854 SERIES, LOW SKEW CLOCK DRIVER, 4 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), QCC16
Categorysemiconductor    logic   
File Size561KB,13 Pages
ManufacturerMicrochip
Websitehttps://www.microchip.com
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SY89854U Overview

89854 SERIES, LOW SKEW CLOCK DRIVER, 4 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), QCC16

SY89854U Parametric

Parameter NameAttribute value
Number of functions1
Number of terminals16
Maximum operating temperature85 Cel
Minimum operating temperature-40 Cel
Maximum supply/operating voltage2.62 V
Minimum supply/operating voltage2.38 V
Rated supply voltage2.5 V
Processing package description3 X 3 MM, LEAD FREE, MLF-16
Lead-freeYes
EU RoHS regulationsYes
stateACTIVE
packaging shapeSQUARE
Package SizeCHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
surface mountYes
Terminal formNO LEAD
Terminal spacing0.5000 mm
terminal coatingNICKEL PALLADIUM GOLD
Terminal locationQUAD
Packaging MaterialsUNSPECIFIED
Temperature levelINDUSTRIAL
series89854
Enter conditionsDIFFERENTIAL
Logic IC typeLOW SKEW CLOCK DRIVER
Number of inverted outputs0.0
Real output number4
propagation delay TPD0.3400 ns
Maximum same-side bending0.0200 ns
Max-Min frequency3500 MHz
SY89854U
Precision Low Power 1:4 LVPECL Fanout
Buffer/Translator with Internal Termination
General Description
The SY89854U is a 2.5V/3.3V precision, high-
speed, fully differential 1:4 LVPECL fanout buffer.
Optimized to provide four identical output copies
with less than 20ps of skew and less than 10ps
(pp)
total jitter, the SY89854U can process clock signals
as fast as 2GHz.
The differential input includes Micrel’s unique, patent
pending 3-pin input termination architecture that
interfaces to any differential signal (AC or DC-
coupled) as small as 100mV (200mVpp) without any
level shifting or termination resistor networks in the
signal path. For AC-coupled input interface
applications, an on-board output reference voltage
(VREF-AC) is provided to bias the center-tap (VT)
pin. The outputs are 800mV LVPECL, with fast
rise/fall times guaranteed to be less than 180ps.
The SY89854U operates from a 2.5V ±5% supply or
a 3.3V ±10% supply and is guaranteed over the full
industrial temperature range of –40°C to +85°C.
The SY89854U is part of Micrel’s high-speed,
®
Precision Edge product line.
All support documentation can be found on Micrel’s
web site at:
www.micrel.com.
Precision Edge
®
Features
Precision 1:4, LVPECL fanout buffer
Low power: 137mW (2.5V typ)
Guaranteed AC performance over temperature
and supply voltage:
– DC- to > 2GHz Clock f
MAX
– <340ps t
pd
– <180ps t
r
/t
f
time
– <20ps max. skew
Ultra-low jitter design:
– <1ps
(rms)
random jitter
– <10ps
(pp)
deterministic jitter
– <10ps
(pp)
total jitter (clock)
Unique patent pending input termination and VT
pin accepts DC-coupled and AC-coupled inputs
(CML, PECL, LVDS)
Typical 800mV (100k) LVPECL output swing
Power supply 2.5V ±5% or 3.3V ±10%
Industrial temperature range –40°C to +85°C
Available in ultra-small (3mm x 3mm) 16-pin MLF
®
package
Typical Applications
200MHz (Q - /Q)
Applications
SONET and All GigE clock distribution
Fibre Channel clock and data distribution
Backplane distribution
Output Swing
(200mV/di .)
v
TIME (600ps/di
v.)
Precision Edge is a registered trademark of Micrel, Inc.
MicroLeadFrame
and MLF are trademarks of Amkor Technology, Inc.
February 2007
M9999-022007-B
hbwhelp@micrel.com
or (408) 955-1690

SY89854U Related Products

SY89854U SY89854U_07
Description 89854 SERIES, LOW SKEW CLOCK DRIVER, 4 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), QCC16 89854 SERIES, LOW SKEW CLOCK DRIVER, 4 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), QCC16
Number of functions 1 1
Number of terminals 16 16
Maximum operating temperature 85 Cel 85 Cel
Minimum operating temperature -40 Cel -40 Cel
Maximum supply/operating voltage 2.62 V 2.62 V
Minimum supply/operating voltage 2.38 V 2.38 V
Rated supply voltage 2.5 V 2.5 V
Processing package description 3 X 3 MM, LEAD FREE, MLF-16 3 X 3 MM, LEAD FREE, MLF-16
Lead-free Yes Yes
EU RoHS regulations Yes Yes
state ACTIVE ACTIVE
packaging shape SQUARE SQUARE
Package Size CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
surface mount Yes Yes
Terminal form NO LEAD NO LEAD
Terminal spacing 0.5000 mm 0.5000 mm
terminal coating NICKEL PALLADIUM GOLD NICKEL PALLADIUM GOLD
Terminal location QUAD QUAD
Packaging Materials UNSPECIFIED UNSPECIFIED
Temperature level INDUSTRIAL INDUSTRIAL
series 89854 89854
Enter conditions DIFFERENTIAL DIFFERENTIAL
Logic IC type LOW SKEW CLOCK DRIVER LOW SKEW CLOCK DRIVER
Number of inverted outputs 0.0 0.0
Real output number 4 4
propagation delay TPD 0.3400 ns 0.3400 ns
Maximum same-side bending 0.0200 ns 0.0200 ns
Max-Min frequency 3500 MHz 3500 MHz

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