SY58035UMI [MICROCHIP]

Low Skew Clock Driver, 58035 Series, 6 True Output(s), 0 Inverted Output(s), 5 X 5 MM, MLF-32;


型号：	SY58035UMI
厂家：	MICROCHIP
描述：	Low Skew Clock Driver, 58035 Series, 6 True Output(s), 0 Inverted Output(s), 5 X 5 MM, MLF-32 驱动逻辑集成电路
文件：	总11页 (文件大小：450K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

Precision Edge^®

4.5GHz,ꢀ1:6ꢀLVPECLꢀFANOUTꢀ

BUFFERꢀWITHꢀ2:1 MUX INPUT

AND INTERNAL TERMINATION

SY58035U

Micrel, Inc.

Precision Edge

SY58035U

FEATURES

■ Provides six ultra-low skew copies of the selected

input

Precision Edge

■ 2:1 MUX input included for clock switchover

applications

DESCRIPTION

■ Guaranteed AC performance over temperature and

voltage:

The SY58035U is a 2.5V/3.3V precision, high-speed, 1:6

fanout capable of handling clocks up to 4.5GHz. A differential

2:1 MUX input is included for redundant clock switchover

applications.

•ꢀ

Clockꢀfrequencyꢀrange:ꢀ DCꢀtoꢀ>ꢀ4.5GHz

<320psꢀIN-to-OUTꢀt

<110psꢀt /t times

<20psꢀskewꢀ(output-to-output)

The differential input includes Micrel’s unique, 3-pin input

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.

■ Ultra-low jitter design:

•ꢀ 50fs ꢀphaseꢀjitterꢀ(typ)

RMS

■ꢀ Lowꢀsupplyꢀvoltageꢀoperation:ꢀ 2.5Vꢀandꢀ3.3V

■ꢀ UniqueꢀinputꢀterminationꢀandꢀVTꢀpinꢀacceptsꢀDC-

coupledꢀandꢀAC-coupledꢀinputsꢀ(CML,ꢀPECL,ꢀLVDS)

■ꢀ Uniqueꢀinputꢀisolationꢀdesignꢀminimizesꢀcrosstalk

■ꢀ 100KꢀLVPECLꢀcompatibleꢀoutputꢀswing

■ꢀ –40°Cꢀtoꢀ+85°Cꢀtemperatureꢀrange

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. The SY58035U is part of

■ꢀ Availableꢀinꢀ32-pinꢀ(5mmꢀxꢀ5mm)ꢀMLF package

Micrel’s high-speed, Precision Edge product line.

All support documentation can be found on Micrel’s web

site at www.micrel.com.

APPLICATIONS

FUNCTIONALꢀBLOCKꢀDIAGRAM

■ꢀ Redundantꢀclockꢀdistribution

1:6 Fanout

■ꢀ AllꢀSONET/SDHꢀclock/dataꢀdistribution

■ꢀ AllꢀFibreꢀChannelꢀdistribution

/Q0

■ꢀ AllꢀGigabitꢀEthernetꢀclockꢀdistribution

2:1 Mux

IN0

V_T0

50Ω

/Q1

/IN0

V_REF-AC0

Mux

/Q2

IN1

V_T1

50Ω

/Q3

/IN1

V_REF-AC1

/Q4

SEL

(TTL/CMOS)

/Q5

Precision Edge is a registered trademark of Micrel, Inc.

MicroLeadFrame and MLF are registered trademarks of Amkor Technology, Inc.

Rev.: F

Amendment: /0

M9999-073010

hbwhelp@micrel.com or (408) 955-1690

Issue Date: July 2010

Precision Edge^®

SY58035U

Micrel, Inc.

PACKAGE/ORDERINGꢀINFORMATION

Ordering Information⁽¹⁾

Package Operating

Package

Lead

PartꢀNumberꢀ

Typeꢀ

MLF-32

Rangeꢀ

Industrial

Markingꢀ

Finish

32 31 30 29 28 27 26 25

GND

IN0

VT0

VREF-AC0

/IN0

IN1

VT1

VREF-AC1

/IN1

SY58035UMI

SY58035U

Sn-Pb

VCC

/Q2

/Q3

VCC

GND

SY58035UMITR⁽²⁾

SY58035UMG⁽³⁾

SY58035U with

NiPdAu

Pb-Free bar-line indicator Pb-Free

SY58035U with NiPdAu

Pb-Free bar-line indicator Pb-Free

SY58035UMGTR^{(2, 3)}MLF-32

Industrial

10 11 12 13 14 15 16

Notes:

1. Contact factory for die availability. Dice are guaranteed at T = 25°C, DC electricals only.

2. Tape and Reel.

32-PinꢀMLF ꢀ(MLF-32)

3. Pb-Free package recommended for new designs.

PIN DESCRIPTION

PinꢀNumberꢀꢀ

PinꢀNameꢀ

PinꢀFunction

1, 4

5, 8

IN0, /IN0

IN1, /IN1

Differential Input: These input pairs are the differential signal inputs to the device. These

inputs accept AC- or DC-coupled signals as small as 100mV. Each pin of a pair internally

terminates to a VT pin through 50ý. Note that these inputs will default to an indeterminate

state if left open. Please refer to the “Input Interface Applications” section for more details.

2, 6

VT0, VT1

Input Termination Center-Tap: Each side of the differential input pair terminates to a VT

pin. The VT0 and VT1 pins provide a center-tap to a termination network for maximum

interfaceꢀﬂexibility.ꢀSeeꢀ“InputꢀInterfaceꢀApplications”ꢀsectionꢀforꢀmoreꢀdetails.

ꢀ

SEL

ꢀ

This single-ended TTL/CMOS-compatible input selects the inputs to the multiplexer. Note

thatꢀthisꢀinputꢀisꢀinternallyꢀconnectedꢀtoꢀaꢀ25kΩꢀpull-upꢀresistorꢀandꢀwillꢀdefaultꢀtoꢀaꢀlogicꢀꢀ

HIGH state if left open. The MUX select switchover function is asynchronous.

No connect.

11, 16, 18,

23, 25, 30

VCC

Positive Power Supply: Bypass with 0.1µF || 0.01µF low ESR capacitors and place as

close to the VCC pin as possible.

29, 28

27, 26

22, 21

20, 19

15, 14

13, 12

Q0, /Q0,

Q1, /Q1,

Q2, /Q2,

Q3, /Q3,

Q4, /Q4,

Q5, /Q5

Differential Outputs: These 100K (temperature compensated) LVPECL output pairs are

low skew copies of the selected input. Please refer to the “Truth Table” for details.

9, 17, 24, 32

GND,

Ground: Ground pin and exposed pad must be connected to the same ground plane.

Exposed Pad

3, 7

VREF-AC0

VREF-AC1

Reference Voltage: These output biases to V_CC–1.2V. It is used for AC-coupling inputs

(IN,/IN).ConnectV_REF-ACdirectlytotheVTpin.Bypasswith0.01µFlowESRcapacitorto

V_CC. See “Input Interface Applications” section. Maximum sink/source current is ±1.5mA.

Due to the limited drive capability, the VREF-AC pin is only intended to drive its respective

VT pin.

TRUTHꢀTABLE

SEL

IN0 Input Selected

IN1 Input Selected

M9999-073010

hbwhelp@micrel.com or (408) 955-1690

Precision Edge^®

SY58035U

Micrel, Inc.

AbsoluteꢀMaximumꢀRatings⁽¹⁾

Operating Ratings⁽²⁾

Power Supply Voltage (V ) .......................–0.5V to +4.0V Power Supply Voltage (V ) ............... +2.375V to +2.625V

............................................................. +3.0V to +3.6V

Input Voltage (V )...........................................–0.5V to V

Ambient Temperature Range (T ) .............. –40°C to +85°C

LVPECL Output Current (I

)

OUT

(3)

Continuous ............................................................. 50mA Package Thermal Resistance

Surge.................................................................... 100mA

MLF ꢀ(θ )

Still-Air .............................................................35°C/W

Termination Current

MLF ꢀ(ψ )

Source or sink current on V pin......................... ±100mA

Junction-to-Board ............................................16°C/W

Input Current

Source or sink current on IN, /IN pin .................... ±50mA

Source or sink current on VREF-AC pin................. ±2mA

Lead Temperature (soldering, 10 sec.)...................... 220°C

Storage Temperature Range (T )............ –65°C to +150°C

(4)

DCꢀELECTRICALꢀCHARACTERISTICS

T_A= –40°C to +85°C, unless otherwise stated.

Symbolꢀ

Parameterꢀ

Conditionꢀ

Minꢀ

2.375

3.0

Typꢀ

2.5

Maxꢀ Units

V_CC

Power Supply Voltage

2.625

3.6

3.3

I_CC

Power Supply Current

No load, max. V_CC

185

100ꢀ

250

R_{DIFF_IN}

ꢀ

DifferentialꢀInputꢀResistanceꢀ

ꢀ

90ꢀ

110ꢀ

(IN-to-/IN)

R_IN

Input Resistance (IN-to-V_T)ꢀ

Input HIGH Voltage (IN, /IN)

Input LOW Voltage (IN, /IN)

Input Voltage Swing (IN, /IN)

ꢀ

45ꢀ

V_CC–1.2

50ꢀ

55ꢀ

V_CC

V_IH

V_IL

V_IH–0.1

1.7

V_IN

See Figure 1a

See Figure 1b

0.1

V_{DIFF_IN}

Differential Input Voltage Swing

|IN, /IN|

0.2

V_TIN

IN to V_T(IN, /IN)

1.28

V_REF-AC

Reference Voltage

V_CC–1.3 V_CC–1.2 V_CC–1.1

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.ꢀ Thermalꢀperformanceꢀassumesꢀexposedꢀpadꢀisꢀsolderedꢀ(orꢀequivalent)ꢀtoꢀtheꢀdevice’sꢀmostꢀnegativeꢀpotentialꢀonꢀtheꢀPCB.ꢀΨ ꢀandꢀθ are shown

for a 4-layer PCB in a still air environment, unless otherwise stated.

4.ꢀ TheꢀcircuitꢀisꢀdesignedꢀtoꢀmeetꢀtheꢀDCꢀspeciﬁcationsꢀshownꢀinꢀtheꢀaboveꢀtableꢀafterꢀthermalꢀequilibriumꢀhasꢀbeenꢀestablished.

(min) not lower than 1.2V.

M9999-073010

hbwhelp@micrel.com or (408) 955-1690

Precision Edge^®

SY58035U

Micrel, Inc.

(6)

LVPECLꢀOUTPUTꢀDCꢀELECTRICALꢀCHARACTERISTICS

V_CC= 2.5V ±5% or 3.3V ±10%; T_A= –40°C to +85°C; R_Lꢀ=ꢀ50ΩꢀtoꢀV_CC–2V, unless otherwise stated.

Symbolꢀ

V_OH

Parameterꢀ

Conditionꢀ

Minꢀ

V_CC–1.145

V_CC–1.945

550

Typꢀ

Maxꢀ

Units

Output HIGH Voltage

Output LOW Voltage

Output Differential Swing

Differential Output Voltage Swing

V_CC–0.895

V_CC–1.695

V_OL

V_OUT

See Figure 1a

See Figure 1b

800

1.6

V_{DIFF_OUT}

1.1

(6)

LVTTL/CMOSꢀDCꢀELECTRICALꢀCHARACTERISTICS

V_CC= 2.5V ±5% or 3.3V ±10%; T_A= -40°C to 85°C, unless otherwise stated.

Symbolꢀ

V_IH

Parameterꢀ

Conditionꢀ

Minꢀ

Typꢀ

Maxꢀ

Units

Input HIGH Voltage

Input LOW Voltage

Input HIGH Current

Input LOW Current

2.0

V_IL

0.8

I_IH

–125

–300

µA

I_IL

Note:

6.ꢀ TheꢀcircuitꢀisꢀdesignedꢀtoꢀmeetꢀtheꢀDCꢀspeciﬁcationsꢀshownꢀinꢀtheꢀaboveꢀtableꢀafterꢀthermalꢀequilibriumꢀhasꢀbeenꢀestablished.

M9999-073010

hbwhelp@micrel.com or (408) 955-1690

Precision Edge^®

SY58035U

Micrel, Inc.

(7)

ACꢀELECTRICALꢀCHARACTERISTICS

V_CC= 2.5V ±5% or 3.3V ±10%; T_A= –40°C to 85°C, R_L=ꢀ50ΩꢀtoꢀV_CC–2V, unless otherwise stated.

Symbolꢀ

f_MAX

Parameterꢀ

ꢀ

Conditionꢀ

ꢀ

Minꢀ

Typꢀ

Maxꢀ

Units

Maximum Operating Frequency

V_OUTꢀ≥ꢀ400mVꢀ

ꢀ

4.5ꢀ

5.5ꢀ

ꢀ

GHz

t_pd

Differential Propagation Delay

(IN0 or IN1-to-Q)

170

100

240

220

320

400

(SEL-to-Q)

∆t_pdTempco Differential Propagation Delay

fs/°C

ꢀ

TemperatureꢀCoefﬁcientꢀꢀ

ꢀ

t_SKEW

Output-to-Output Note 8

Part-to-Part Note 9

100

t_JITTER

RMS Phase Jitter

Output: 622MHz

Integration Range: 12kHz to 20MHz

Adjacent Channel Note 10

Crosstalk-Induced Jitter

Output Rise/Fall Time

0.7

ps_rms

t_r, t_f

Full Swing, 20% to 80%

110

Notes:

7. High frequency AC electricals are guaranteed by design and characterization.

8. Output-to-output skew is measured between outputs under identical transitions.

9. Part-to-partꢀskewꢀisꢀdeﬁnedꢀforꢀtwoꢀpartsꢀwithꢀidenticalꢀpowerꢀsupplyꢀvoltagesꢀatꢀtheꢀsameꢀtemperatureꢀandꢀwithꢀnoꢀskewꢀofꢀtheꢀedgesꢀatꢀtheꢀꢀ

ꢀ

respective inputs.

10. Crosstalk is measured at the output while applying two similar clock frequencies that are asynchronous with respect to each other at the inputs.

PHASEꢀNOISE

-10

RMS Phase Jitter (Random)

12kHz to 20MHz: 50fs (Typical)

-20

-30

-40

-50

-60

-70

-80

-90

-100

-110

-120

-130

-140

-150

-160

-170

-180

-190

-200

100

10K

100K

10M

100M

OFFSETꢀFREQUENCYꢀ(Hz)

PhaseꢀNoiseꢀPlot:ꢀ622MHzꢀ@ꢀ3.3V

M9999-073010

hbwhelp@micrel.com or (408) 955-1690

Precision Edge^®

SY58035U

Micrel, Inc.

SINGLE-ENDEDꢀANDꢀDIFFERENTIALꢀSWINGS

V_{DIFF_IN}

V_IN

V_{DIFF_OUT}1.6V (Typ.)

800mV (Typ.)

V_OUT

Figureꢀ1a.ꢀ Single-EndedꢀVoltageꢀSwing

Figureꢀ1b.ꢀ DifferentialꢀVoltageꢀSwing

TIMING DIAGRAMS

/IN

t_pd

Input-to-Q t_pd

SEL

V_CC/2

t_pd

SEL-to-Q t_pd

M9999-073010

hbwhelp@micrel.com or (408) 955-1690

Precision Edge^®

SY58035U

Micrel, Inc.

TYPICALꢀOPERATINGꢀCHARACTERISTICS

= 2.5V, GND = 0, V = 100mV, R ꢀ=ꢀ50ΩꢀtoꢀV –2V; T = 25°C, unless otherwise stated.

Output Swing

vs.ꢀFrequency

PropagationꢀDelay

vs. Temperature

900

800

700

600

500

400

300

200

100

246

244

242

240

238

236

234

2000 4000 6000 8000 10000

FREQUENCY (MHz)

-40 -20

20 40 60 80 100

TEMPERATURE (°C)

M9999-073010

hbwhelp@micrel.com or (408) 955-1690

Precision Edge^®

SY58035U

Micrel, Inc.

FUNCTIONALꢀCHARACTERISTICS

= 3.3V, GND = 0, V = 100mV, R ꢀ=ꢀ50ΩꢀtoꢀV –2V; T = 25°C, unless otherwise stated.

IN L CC A

200MHzꢀOutput

1.25GHzꢀOutput

TIME (600ps/div.)

TIME (100ps/div.)

2.5GHzꢀOutput

5GHzꢀOutput

TIME (50ps/div.)

TIME (30ps/div.)

M9999-073010

hbwhelp@micrel.com or (408) 955-1690

Precision Edge^®

SY58035U

Micrel, Inc.

INPUT AND OUTPUT STAGES

V_CC

50Ω

V_T

GND

50Ω

/IN

Figureꢀ2a.ꢀSimpliﬁedꢀDifferentialꢀInputꢀStage

Figureꢀ2b.ꢀSimpliﬁedꢀLVPECLꢀOutputꢀStage

INPUTꢀINTERFACEꢀAPPLICATIONS

V_CC

LVPECL

/IN

LVPECL

SY58035U

CML

/IN

VREF-AC

GND

V_CC

R_pd

SY58035U

GND

0.01µF

GND

V_CC

VREF-AC

R_pd

VREF-AC

0.01µF

GND

For 3.3V, R_pd= 50Ω

For 2.5V, R_pd= 19Ω

For 3.3V, R_pd= 100Ω

For 2.5V, R_pd= 50Ω

Option: May connect V_Tto V_CC

Figureꢀ3b.ꢀLVPECLꢀInterfaceꢀ

(AC-Coupled)

Figureꢀ3c.ꢀCMLꢀInterfaceꢀ

(DC-Coupled)

Figureꢀ3a.ꢀLVPECLꢀInterfaceꢀ

(DC-Coupled)

V_CC

CML

/IN

LVDS

SY58035U

/IN

GND

SY58035U

V_CC

0.01µF

VREF-AC

GND

VREF-AC

Figureꢀ3d.ꢀCMLꢀInterfaceꢀ

(AC-Coupled)

Figureꢀ3e.ꢀLVDSꢀInterface

M9999-073010

hbwhelp@micrel.com or (408) 955-1690

Precision Edge^®

SY58035U

Micrel, Inc.

OUTPUTꢀINTERFACEꢀAPPLICATIONS

and parallel termination (3-resistor). Unused output pairs

mayꢀbeꢀleftꢀﬂoating.ꢀHowever,ꢀsingle-endedꢀoutputsꢀmustꢀbeꢀ

terminated, or balanced.

LVPECL has high input impedance, very low output (open

emitter) impedance, and small signal swing, which results in

lowꢀEMI.ꢀLVPECLꢀisꢀidealꢀdrivingꢀ50Ωꢀandꢀ100Ωꢀcontrolledꢀ

impedance transmission lines. There are several techniques

for terminating the LVECL output: parallel-thevenin equivalent

+3.3V

130Ω

Z = 50Ω

+3.3V

130Ω +3.3V

Z_O= 50Ω

50Ω

source

destination

82Ω

V_CC

Note: For 2.5V systems:

R = 19Ω

0.01µF

Note: For 2.5V systems:

R1 = 250Ω, R2 = 62.5Ω

(optional)

Figureꢀ4a.ꢀParallelꢀThevenin-Equivalentꢀ

Figureꢀ4b.ꢀParallelꢀTerminationꢀ

(3-Resistor)

Termination

RELATED MICREL PRODUCTS AND SUPPORT DOCUMENTATION

PartꢀNumberꢀꢀ Functionꢀ

DataꢀSheetꢀLink

SY58034U

6GHz, 1:6 CML Fanout Buffer with 2:1

http://www.micrel.com/product-info/products/sy58034u.shtml

MUX Input and Internal I/O Termination

SY58036U

6GHz, 1:6 400mV LVPECL Fanout Buffer with 2:1

MUX Input and Internal Termination

http://www.micrel.com/product-info/products/sy58036u.shtml

MLF^®Application Note

www.amkor.com/products/notes_papers/MLF_AppNote_0902.pdf

www.micrel.com/product-info/products/solutions.shtml

HBW Solutions

New Products and Applications

M9999-073010

hbwhelp@micrel.com or (408) 955-1690

Precision Edge^®

SY58035U

Micrel, Inc.

32-PIN MicroLeadFrame ꢀ(MLF-32)

Package

EP- Exposed Pad

Die

CompSide Island

Heat Dissipation

V_EE

Heavy Copper Plane

V_EE

Heavy Copper Plane

PCBꢀThermalꢀConsiderationꢀforꢀ32-PinꢀMLF Package

(Alwaysꢀsolder,ꢀorꢀequivalent,ꢀtheꢀexposedꢀpadꢀtoꢀtheꢀPCB)

Package Notes:

1.ꢀ PackageꢀmeetsꢀLevelꢀ2ꢀqualiﬁcation.

2. All parts are dry-packaged before shipment.

3. Exposed pads must be soldered to a ground for proper thermal management.

MICREL,ꢀINC.ꢀ 2180ꢀFORTUNEꢀDRIVEꢀ SANꢀJOSE,ꢀCAꢀ 95131ꢀ USA

t e l + 1 (408) 944-0800 f a x + 1 (408) 474-1000 w e b http://www.micrel.com

The information furnished by Micrel in this data sheet is believed to be accurate and reliable. However, no responsibility is assumed by Micrel for its use.

Micrelꢀreservesꢀtheꢀrightꢀtoꢀchangeꢀcircuitryꢀandꢀspeciﬁcationsꢀatꢀanyꢀtimeꢀwithoutꢀnotiﬁcationꢀtoꢀtheꢀcustomer.

Micrel Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product can

reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical implant into

theꢀbodyꢀorꢀ(b)ꢀsupportꢀorꢀsustainꢀlife,ꢀandꢀwhoseꢀfailureꢀtoꢀperformꢀcanꢀbeꢀreasonablyꢀexpectedꢀtoꢀresultꢀinꢀaꢀsigniﬁcantꢀinjuryꢀtoꢀtheꢀuser.ꢀAꢀPurchaser’sꢀ

use or sale of Micrel Products for use in life support appliances, devices or systems is at Purchaser’s own risk and Purchaser agrees to fully indemnify

Micrel for any damages resulting from such use or sale.

M9999-073010

hbwhelp@micrel.com or (408) 955-1690

SY58035UMI [MICROCHIP]

相关型号：

SY58035UMITR

SY58035U_10

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SY58036UMG

SY58036UMG

SY58036UMG-TR

SY58036UMGTR

SY58036UMI

SY58036UMI

SY58036UMITR

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