sy58035u Micrel Semiconductor, sy58035u Datasheet

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sy58035u

Manufacturer Part Number
sy58035u
Description
Sy58035u 4.5ghz, 1 6 Lvpecl Fanout Buffer W/ 2 1 Mux Input And Internal Termination
Manufacturer
Micrel Semiconductor
Datasheet

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Micrel, Inc.
Precision Edge is a registered trademark of Micrel, Inc.
Micro LeadFrame and MLF are registered trademarks of Amkor Technology, Inc.
M9999-082707
hbwhelp@micrel.com or (408) 955-1690
FEATURES
APPLICATIONS
Provides six ultra-low skew copies of the selected
input
2:1 MUX input included for clock switchover
applications
Guaranteed AC performance over temperature and
voltage:
• Clock frequency range: DC to > 4.5GHz
• <320ps IN-to-OUT t
• <110ps t
• <20ps skew (output-to-output)
Ultra-low jitter design:
• <1ps
• <10ps
• <1ps
• <0.7ps
Low supply voltage operation: 2.5V and 3.3V
Unique input termination and VT pin accepts DC-
coupled and AC-coupled inputs (CML, PECL, LVDS)
Unique input isolation design minimizes crosstalk
100K LVPECL compatible output swing
–40
Available in 32-pin (5mm x 5mm) MLF
Redundant clock distribution
All SONET/SDH clock/data distribution
All Fibre Channel distribution
All Gigabit Ethernet clock distribution
°
C to +85
RMS
RMS
PP
RMS
r
total jitter (clock)
random jitter
cycle-to-cycle jitter
/ t
°
crosstalk-induced jitter
C temperature range
f
times
pd
®
package
4.5GHz, 1:6 LVPECL FANOUT
BUFFER WITH 2:1 MUX INPUT
AND INTERNAL TERMINATION
1
fanout capable of handling clocks up to 4.5GHz. A differential
2:1 MUX input is included for redundant clock switchover
applications.
termination architecture that allows the device to interface
to any differential signal (AC- or DC-coupled) as small as
100mV without any level shifting or termination resistor
networks in the signal path. The outputs are LVPECL (100K,
temperature compensated), with extremely fast rise/fall times
guaranteed to be less than 110ps.
3.3V ±10% supply and is guaranteed over the full industrial
temperature range of –40°C to +85°C. For applications that
require CML outputs, consider the SY58034U or for 400mV
LVPECL outputs the SY58036U. The SY58035U is part of
Micrel’s high-speed, Precision Edge
site at www.micrel.com.
V
V
REF-AC0
REF-AC1
DESCRIPTION
FUNCTIONAL BLOCK DIAGRAM
The SY58035U is a 2.5V/3.3V precision, high-speed, 1:6
The differential input includes Micrel’s unique, 3-pin input
The SY58035U operates from a 2.5V ±5% supply or a
All support documentation can be found on Micrel’s web
SEL
(TTL/CMOS)
/IN0
/IN1
IN0
IN1
V
V
T0
T1
50Ω
50Ω
50Ω
50Ω
0
1
2:1 Mux
Mux
S
®
Precision Edge
product line.
Rev.: E
Issue Date: August 2007
Precision Edge
Precision Edge
SY58035U
1:6 Fanout
Amendment: /0
SY58035U
/Q0
/Q1
/Q2
/Q3
/Q4
/Q5
Q0
Q1
Q2
Q3
Q4
Q5
®
®
®

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sy58035u Summary of contents

Page 1

... The outputs are LVPECL (100K, temperature compensated), with extremely fast rise/fall times guaranteed to be less than 110ps. The SY58035U 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. For applications that require CML outputs, consider the SY58034U or for 400mV LVPECL outputs the SY58036U ...

Page 2

... Due to the limited drive capability, the VREF-AC pin is only intended to drive its respective VT pin. 2 Precision Edge Operating Package Range Marking Industrial SY58035U Industrial SY58035U Industrial SY58035U with Pb-Free bar-line indicator Industrial SY58035U with Pb-Free bar-line indicator = 25°C, DC electricals only. A –1.2V used for AC-coupling inputs CC ® SY58035U Lead Finish ...

Page 3

... CC ) ............. –40°C to +85° Min Typ 2.375 2.5 2.625 3.0 3.3 185 90 100 –1 0.1 0.2 V –1.3 V –1 and θ JB ® SY58035U Max Units V 3.6 V 250 mA 110 Ω 55 Ω –0 1 1.28 V –1 are shown JA ...

Page 4

... The circuit is designed to meet the DC specifications shown in the above table after thermal equilibrium has been established. M9999-082707 hbwhelp@micrel.com or (408) 955-1690 (6) = 50Ω –2V, unless otherwise stated Condition See Figure 1a See Figure 1b (6) Condition 4 Precision Edge SY58035U Min Typ Max Units V –1.145 V –0.895 –1.945 V – ...

Page 5

... T is the time between rising edges of the output n–1 12 output edges will deviate by more than V , DIFF_IN V 1.6V (Typ.) DIFF_OUT Figure 1b. Differential Voltage Swing Precision Edge ® SY58035U Max Units GHz 320 ps 400 ps fs/° 100 rms 1 ...

Page 6

... Micrel, Inc. TIMING DIAGRAMS IN / SEL Q /Q M9999-082707 hbwhelp@micrel.com or (408) 955-1690 t pd Input-to SEL-to Precision Edge ® SY58035U ...

Page 7

... FREQUENCY (MHz) M9999-082707 hbwhelp@micrel.com or (408) 955-1690 –2V 25°C, unless otherwise stated Propagation Delay vs. Temperature 246 244 242 240 238 236 234 -40 - 100 TEMPERATURE (C) 7 Precision Edge ® SY58035U ...

Page 8

... Micrel, Inc. FUNCTIONAL CHARACTERISTICS V = 3.3V, GND = 100mV 50Ω 200MHz Output TIME (600ps/div.) 2.5GHz Output TIME (50ps/div.) M9999-082707 hbwhelp@micrel.com or (408) 955-1690 –2V 25°C, unless otherwise stated Precision Edge SY58035U 1.25GHz Output TIME (100ps/div.) 5GHz Output TIME (30ps/div.) ® ...

Page 9

... GND VT For 3.3V 100Ω pd For 2.5V 50Ω pd Figure 3b. LVPECL Interface (AC-Coupled LVDS /IN SY58035U GND NC VREF- Figure 3e. LVDS Interface 9 Precision Edge ® SY58035U CML /IN SY58035U GND NC VREF- Option: May connect Figure 3c. CML Interface (DC-Coupled) ...

Page 10

... R2 82Ω Note: For 2.5V systems 19Ω Data Sheet Link http://www.micrel.com/product-info/products/sy58034u.shtml http://www.micrel.com/product-info/products/sy58036u.shtml www.amkor.com/products/notes_papers/MLF_AppNote_0902.pdf www.micrel.com/product-info/products/solutions.shtml 10 Precision Edge +3. 50Ω 50Ω 50Ω 50Ω “destination” 50Ω 0.01µF (optional) Figure 4b. Parallel Termination (3-Resistor) ® SY58035U V CC ...

Page 11

... Heavy Copper Plane Heavy Copper Plane PCB Thermal Consideration for 32-Pin MLF + 1 (408) 474-1000 FAX WEB Micrel for any damages resulting from such use or sale. © 2005 Micrel, Incorporated. 11 Precision Edge Package EP- Exposed Pad Die ® Package http://www.micrel.com ® SY58035U ...

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