Microchip SY58032U Handleiding

Microchip Niet gecategoriseerd SY58032U

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M9999-072810
hbwhelp@micrel.com or (408) 955-1690
DESCRIPTION
ā– Precision 1:8, LVPECL fanout buffer
ā– Guaranteed AC performance over temperature and
voltage:
ā€¢ Clockī˜ƒfrequencyī˜ƒrange:ī˜ƒDCī˜ƒtoī˜ƒ4GHz
ā€¢ <110psī˜ƒtr / tf times
ā€¢ <330psī˜ƒtpd
ā€¢ <20psī˜ƒskew
ā– Low-jitterī˜ƒperformance:
ā€¢ 76fsRMSī˜ƒphaseī˜ƒjitterī˜ƒ(typ)
ā– 100kī˜ƒLVPECLī˜ƒcompatibleī˜ƒoutputs
ā– Fullyī˜ƒdifferentialī˜ƒinputs/outputs
ā– Acceptsī˜ƒanī˜ƒinputī˜ƒsignalī˜ƒasī˜ƒlowī˜ƒasī˜ƒ100mV
ā– Uniqueī˜ƒinputī˜ƒterminationī˜ƒandī˜ƒVT pin accepts
DC-coupledī˜ƒandī˜ƒAC-coupledī˜ƒdifferentialī˜ƒinputs:
(LVPECL,ī˜ƒLVDS,ī˜ƒandī˜ƒCML)
ā– Powerī˜ƒsupplyī˜ƒ2.5Vī˜ƒĀ±5%ī˜ƒorī˜ƒ3.3Vī˜ƒĀ±10%
ā– Industrialī˜ƒtemperatureī˜ƒrange:ī˜ƒ ā€“40Ā°Cī˜ƒtoī˜ƒ+85Ā°C
ā– Availableī˜ƒinī˜ƒ32-pinī˜ƒ(5mmī˜ƒxī˜ƒ5mm)ī˜ƒMLFĀ®ī˜ƒpackage
FEATURES
ULTRA-PRECISIONī˜ƒ1:8ī˜ƒFANOUTī˜ƒ
BUFFER LVPECL OUTPUTS WITHī˜ƒ
AND INTERNAL TERMINATION
Precision EdgeĀ®
SY58032U
APPLICATIONS
ā– Allī˜ƒSONETī˜ƒandī˜ƒallī˜ƒGigEī˜ƒclockī˜ƒdistribution
ā– Allī˜ƒFibreī˜ƒChannelī˜ƒclockī˜ƒandī˜ƒdataī˜ƒdistribution
ā– Networkī˜ƒroutingī˜ƒengineī˜ƒtimingī˜ƒdistribution
ā– High-end,ī˜ƒlow-skewī˜ƒmultiprocessorī˜ƒsynchronous
clockī˜ƒdistribution
Rev.: E Amendment: /0
Issue Date: July 2010
The SY58032U is a 2.5V/3.3V precision, high-speed,
fully differential LVPECL 1:8 fanout buffer. The SY58032U
is optimized to provide eight identical output copies with
less than 20ps of skew and only 76fsRMS phase jitter. It can
process clock signals as fast as 4GHz.
The differential input includes Micrelā€™s unique, 3-pin input
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 50Ć½ loads, and provide an extremely fast rise/fall
time guaranteed to be less than 110ps.
The SY58032U operates from a 2.5V Ā±5% supply or
3.3V Ā±10% supply and is guaranteed over the full industrial
temperature range (ā€“40Ā°C to +85Ā°C). For applications that
require a higher high-speed 1:8 fanout buffer, consider the
SY58031U or SY58033U. The SY58032U is part of Micrelā€™s
high-speed, Precision EdgeĀ® product line.
All support documentation can be found on Micrelā€™s web
site at www.micrel.com.
FUNCTIONAL BLOCK DIAGRAM
Precision EdgeĀ®
Q1
/Q1
Q0
/Q0
IN
/IN
V
T
50ā„¦
50ā„¦
V
REF-AC
Q3
/Q3
Q2
/Q2
Q5
/Q5
Q4
/Q4
Q7
/Q7
Q6
/Q6
Precision Edge is a registered trademark of Micrel, Inc.
MicroLeadFrame and MLF are registered trademarks of Amkor Technology, Inc.
2
Precision EdgeĀ®
SY58032U
Micrel, Inc.
M9999-072810
hbwhelp@micrel.com or (408) 955-1690
PACkAGE/ORDERING INFORMATION
Pin Number Pin Name Pin Function
3, 6 IN, /IN Differential Signal Input: Each pin of this pair internally terminates with 50Ć½ to the V
T
pin. Note that this input will default to an indeterminate state if left open.
See ā€œInput Interface Applicationsā€ section.
4 VT Input Termination Center-Tap: Each input terminates to this pin. The V
T pin provides a
center-tap for each input (IN, /IN) to the termination network for maximum interface
ī˜ƒ ī˜ƒ ī˜ƒ ī›€exibility.ī˜ƒSeeī˜ƒā€œInputī˜ƒInterfaceī˜ƒApplicationsā€ī˜ƒsection.
2, 7, 17, 24 GND, Ground. Exposed pad must be connected to a ground plane that is the same potential
Exposed Pad as the ground pin.
1, 8, 9, 16, VCC Positive Power Supply: Bypass with 0.1ĀµF||0.01ĀµF low ESR capacitors as close to the
18, 23, 25, 32 pins as possible.
31, 30, 29, 28, 27, Q0, /Q0, Q1, /Q1, 100k LVPECL Differential Output Pairs: Differential buffered output copy of the
ī˜ƒ 26,ī˜ƒ22,ī˜ƒ21,ī˜ƒ20,ī˜ƒ19,ī˜ƒ Q2,ī˜ƒ/Q2,ī˜ƒQ3,ī˜ƒ/Q3,ī˜ƒ inputī˜ƒsignal.ī˜ƒTheī˜ƒLVPECLī˜ƒoutputī˜ƒswingī˜ƒisī˜ƒtypicallyī˜ƒ800mVī˜ƒintoī˜ƒ50Ī©.ī˜ƒUnusedī˜ƒoutputī˜ƒī˜ƒ
ī˜ƒ 15,ī˜ƒ14,ī˜ƒ13,ī˜ƒ12,ī˜ƒī˜ƒ Q4,ī˜ƒ/Q4,ī˜ƒQ5,ī˜ƒ/Q5,ī˜ƒ pairsī˜ƒmayī˜ƒbeī˜ƒleftī˜ƒī›€oatingī˜ƒwithī˜ƒnoī˜ƒimpactī˜ƒonī˜ƒjitter.ī˜ƒSeeī˜ƒā€œLVPECLī˜ƒOutputā€ī˜ƒsection.ī˜ƒ
11, 10 Q6, /Q6, Q7, /Q7
5 VREF-AC Bias Reference Voltage: Equal to V
CCā€“1.2V (typical), and used for AC-coupled
applications. See ā€œInput Interface Applicationsā€ section. When using V
REF-AC, bypass
with 0.01ĀµF capacitor to VCC. Maximum sink/source current is 0.5mA.
PIN DESCRIPTION
24
23
22
21
20
19
18
17
GND
VCC
Q3
/Q3
Q4
/Q4
VCC
GND
VCC
GND
IN
VT
VREF-AC
/IN
GND
VCC
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16
32 31 30 29 28 27 26 25
/Q1
Q1
/Q0
Q0
VCC
Q2
/Q2
VCC
Q6
/Q6
Q7
/Q7
VCC
/Q5
Q5
VCC
32-Pinī˜ƒMLFĀ®ī˜ƒ(MLF-32)
Ordering Information(1)
ī˜ƒ Packageī˜ƒ Operatingī˜ƒī˜ƒ Packageī˜ƒ Lead
Partī˜ƒNumberī˜ƒ Typeī˜ƒ Rangeī˜ƒ Markingī˜ƒ Finish
SY58032UMI MLF-32 Industrial SY58032U Sn-Pb
SY58032UMITR(2) MLF-32 Industrial SY58032U Sn-Pb
SY58032UMG(3) MLF-32 Industrial SY58032U with Pb-Free
Pb-Free bar-line indicator NiPdAu
SY58032UMGTR(2, 3) MLF-32 Industrial SY58032U with Pb-Free
Pb-Free bar-line indicator NiPdAu
Notes:
1. Contact factory for die availability. Dice are guaranteed at T
A = 25Ā°C, DC electricals only.
2. Tape and Reel.
3. Pb-Free package recommended for new designs.
3
Precision EdgeĀ®
SY58032U
Micrel, Inc.
M9999-072810
hbwhelp@micrel.com or (408) 955-1690
Absoluteī˜ƒMaximumī˜ƒRatings(1)
Power Supply Voltage (VCC ) ........................ā€“0.5V to +4.0V
Input Voltage (VIN) .............................................ā€“0.5V to V
CC
Current (VT)
Source or sink current on VT pin ......................... Ā±100mA
Input Current (VT)
Source or sink current on IN, /IN .......................... Ā±50mA
Current (VREF)
Source or sink current on VREF-AC
(3) ....................... Ā±1.5mA
Lead Temperature Soldering, (20 sec.) ..................... 260Ā°C
Storage Temperature Range (T S ) ............ ā€“65Ā°C to +150Ā°C
Operating Ratings(2)
Power Supply Voltage (VCC) .................. +2.375V to +3.60V
Ambient Temperature Range (TA) ............... ā€“40Ā°C to +85Ā°C
Package Thermal Resistance(4)
MLFĀ®ī˜ƒ(ĪøJA)
Still-Air ............................................................. 35Ā°C/W
MLFĀ®ī˜ƒ(ĻˆJB)
Junction-to-Board ............................................ 20Ā°C/W
Symbolī˜ƒ Parameterī˜ƒ Conditionī˜ƒ Minī˜ƒ Typī˜ƒ Maxī˜ƒ Units
VCC Power Supply Voltage 2.5V nominal 2.375 2.5 2.625 V
3.3V nominal 3.0 3.3 3.6 V
ICC Power Supply Current VCC = max. No load. Includes current 190 250 mA
through 50Ć½ pull-ups.
VIH
Input HIGH Voltage IN, /IN, Note 6 V CC
ā€“1.6 VCC V
VIL Input LOW Voltage IN, /IN 0 V IHā€“0.1 V
VIN
Input Voltage Swing IN, /IN, see Figure 1a. 0.1 1.7 V
VDIFF_IN Differential Input Voltage Swing IN, /IN, see Figure 1b. 0.2 V
|IN0, /IN0|, |IN1, /IN1|
RIN
In-to-VTī˜ƒResistanceī˜ƒ ī˜ƒ 40ī˜ƒ 50ī˜ƒ 60ī˜ƒ Ī©
VT IN Max. In-to-VT
(IN, /IN) 1.28 V
VREF-AC VCC
ā€“1.3 VCCā€“1.2 VCCā€“1.1 V
DCī˜ƒELECTRICALī˜ƒCHARACTERISTICS(5)
TA= ā€“40Ā°C to +85Ā°C
VCC = 2.5V Ā±5% or 3.3V Ā±10%; RL = 50Ć½ to V
CCā€“2V; TA= ā€“40Ā°C to +85Ā°C, unless otherwise stated.
Symbolī˜ƒ Parameterī˜ƒ Conditionī˜ƒ Minī˜ƒ Typī˜ƒ Maxī˜ƒ Units
VOH Output HIGH Voltage VCC
ā€“1.145 VCCā€“0.895 V
VOL Output LOW Voltage VCC
ā€“1.945 VCCā€“1.695 V
VOUT Output Voltage Swing see Figure 1a. 500 800 mV
VDIFF_OUT Differential Voltage Swing see Figure 1b. 1000 1600 2000 mV
Notes:
1. Permanent device damage may occur if Absolute Maximum Ratings are exceeded. This is a stress rating only and functional operation is not implied
at conditions other than those detailed in the operational sections of this data sheet. Exposure to Absolute Maximum Ratings conditions for extended
periods may affect device reliability.
2. The data sheet limits are not guaranteed if the device is operated beyond the operating ratings.
3. Due to the limited drive capability, use for input of the same package only.
4.ī˜ƒ Thermalī˜ƒperformanceī˜ƒassumesī˜ƒexposedī˜ƒpadī˜ƒisī˜ƒsolderedī˜ƒ(orī˜ƒequivalent)ī˜ƒtoī˜ƒtheī˜ƒdeviceā€™sī˜ƒmostī˜ƒnegativeī˜ƒpotentialī˜ƒ(GND)ī˜ƒonī˜ƒtheī˜ƒPCB.ī˜ƒī˜ƒĻˆ
JB
uses 4-layer
ĪøJA
in still-air number unless otherwise stated.
5.ī˜ƒ Theī˜ƒcircuitī˜ƒisī˜ƒdesignedī˜ƒtoī˜ƒmeetī˜ƒtheī˜ƒDCī˜ƒspeciīšæcationsī˜ƒshownī˜ƒinī˜ƒtheī˜ƒaboveī˜ƒtablesī˜ƒafterī˜ƒthermalī˜ƒequilibriumī˜ƒhasī˜ƒbeenī˜ƒestablished.
6. VIH (min) not lower than 1.2V.
LVPECLī˜ƒDCī˜ƒELECTRICALī˜ƒCHARACTERISTICS(5)

Product specificaties

Merk: Microchip
Categorie: Niet gecategoriseerd
Model: SY58032U

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