sy58032u Micrel Semiconductor, sy58032u Datasheet

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sy58032u

Manufacturer Part Number
sy58032u
Description
Sy58032u Ultra-precision 1 8 Fanout Buffer With Lvpecl Outputs And Internal Termination
Manufacturer
Micrel Semiconductor
Datasheet

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SY58032U
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sy58032uMG
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Micrel, Inc.
Precision Edge is a registered trademark of Micrel, Inc.
MicroLeadFrame and MLF are registered trademarks of Amkor Technology, Inc.
M9999-082707
hbwhelp@micrel.com or (408) 955-1690
FEATURES
APPLICATIONS
Precision 1:8, LVPECL fanout buffer
Guaranteed AC performance over temperature and
voltage:
• Clock frequency range: DC to 4GHz
• <110ps t
• <330ps t
• <20ps skew
Low-jitter performance:
• <10ps
• <1ps
100k LVPECL compatible outputs
Fully differential inputs/outputs
Accepts an input signal as low as 100mV
Unique input termination and V
coupled and AC-coupled differential inputs:
(LVPECL, LVDS, and CML)
Power supply 2.5V ±5% or 3.3V ±10%
Industrial temperature range: –40°C to +85°C
Available in 32-pin (5mm x 5mm) MLF
All SONET and all GigE clock distribution
All Fibre Channel clock and data distribution
Network routing engine timing distribution
High-end, low-skew multiprocessor synchronous
clock distribution
RMS
PP
r
pd
total jitter (clock)
random jitter
/ t
f
times
T
pin accepts DC-
®
ULTRA-PRECISION 1:8 FANOUT
BUFFER WITH LVPECL OUTPUTS
AND INTERNAL TERMINATION
package
1
differential LVPECL 1:8 fanout buffer. The SY58032U is
optimized to provide eight identical output copies with less
than 20ps of skew and less than 10ps
process clock signals as fast as 4GHz.
termination architecture that allows the SY58032U to directly
interface to LVPECL, CML, and LVDS differential signals
(AC- or DC-coupled) without any level-shifting or termination
resistor networks in the signal path. The result is a clean,
stub-free, low-jitter interface solution. The LVPECL (100k
temperature compensated) outputs feature 800mV typical
swing into 50ý loads, and provide an extremely fast rise/fall
time guaranteed to be less than 110ps.
3.3V ±10% supply and is guaranteed over the full industrial
temperature range (–40°C to +85°C). For applications that
require a higher high-speed 1:8 fanout buffer, consider the
SY58031U or SY58033U. The SY58032U is part of Micrel’s
high-speed, Precision Edge
site at www.micrel.com.
DESCRIPTION
FUNCTIONAL BLOCK DIAGRAM
The SY58032U is a 2.5V/3.3V precision, high-speed, fully
The differential input includes Micrel’s unique, 3-pin input
The SY58032U operates from a 2.5V ±5% supply or
All support documentation can be found on Micrel’s web
V
REF-AC
/IN
IN
V
T
50Ω
50Ω
®
product line.
Precision Edge
pp
Rev.: D
Issue Date: February 2007
Precision Edge
total jitter. It can
Precision Edge
SY58032U
Q0
/Q0
Q1
/Q1
Q2
/Q2
Q3
/Q3
Q4
/Q4
Q5
/Q5
Q6
/Q6
Q7
/Q7
Amendment: /0
SY58032U
®
®
®

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sy58032u Summary of contents

Page 1

... For applications that require a higher high-speed 1:8 fanout buffer, consider the SY58031U or SY58033U. The SY58032U is part of Micrel’s high-speed, Precision Edge All support documentation can be found on Micrel’s web site at www.micrel.com. ...

Page 2

... V . Maximum sink/source current is 0.5mA Precision Edge Package Range Marking Industrial SY58032U Industrial SY58032U Industrial SY58032U with Pb-Free bar-line indicator Industrial SY58032U with Pb-Free bar-line indicator = 25°C, DC electricals only. A pin provides bypass REF-AC ® SY58032U Lead ...

Page 3

... 0.1 0 –1.3 V –1 Min Typ Max V –1.145 –1.945 500 800 1000 1600 2000 ® SY58032U Max Units V 3.6 V 250 –0 1 ý 1.28 V –1 Units –0.895 V –1.695 ...

Page 4

... T is the time between rising edges of the output n–1 12 output edges will deviate by more than the V , DIFF_IN V 1.6V (Typ.) DIFF_OUT Figure 1b. Differential Voltage Swing OUT ® SY58032U Max Units GHz 330 ps fs/° 100 RMS ...

Page 5

... INPUT SWING (mV) M9999-082707 hbwhelp@micrel.com or (408) 955-1690 = 25°C, unless otherwise stated. A GHz Output IME (30ps/div.) 800 1000 5 Precision Edge SY58032U 1.25GHz Output TIME (100ps/div.) ∆ ∆ ∆ ∆ ∆ Output-to-Output Skew vs. Temperature 2.5 2 1.5 1 0.5 0 -60 -40 - 100 TEMPERATURE (°C) Propagation Delay vs ...

Page 6

... REF- Figure 3b. AC-Coupled CML Input Interface LVDS /IN SY58032U GND NC V REF- Figure 3e. LVDS Input Interface 6 ® Precision Edge SY58032U LVPECL /IN SY58032U GND V REF- 0.01µ For 2.5V 19Ω pd For 3.3V 50Ω pd Figure 3c. LVPECL ...

Page 7

... For 3.3V systems Figure 5. Parallel Termination (3-Resistor) Data Sheet Link http://www.micrel.com/product-info/products/sy58031u.shtml http://www.micrel.com/product-info/products/sy58032u.shtml http://www.micrel.com/product-info/products/sy58033u.shtml www.amkor.com/products/notes_papers/MLF_AppNote_0902.pdf http://www.micrel.com/product-info/as/solutions.shtml 7 R1 130Ω +3.3V R2 82Ω — +3.3V 50Ω “destination” (optional) 0.01µ 50Ω b ® Precision Edge SY58032U ...

Page 8

... PCB Thermal Consideration for 32-Pin MLF (Always solder, or equivalent, the exposed pad to the PCB (408) 474-1000 FAX Micrel for any damages resulting from such use or sale. © 2005 Micrel, Incorporated. 8 Package EP- Exposed Pad Die ® Package http://www.micrel.com WEB ® Precision Edge SY58032U ...

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