SY58035UMG-TR [MICROCHIP]
58035 SERIES, LOW SKEW CLOCK DRIVER, 6 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), QCC32;型号: | SY58035UMG-TR |
厂家: | MICROCHIP |
描述: | 58035 SERIES, LOW SKEW CLOCK DRIVER, 6 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), QCC32 驱动 输出元件 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 |
4.5GHz,ꢀ1:6ꢀLVPECLꢀFANOUTꢀ
BUFFERꢀWITHꢀ2:1 MUX INPUT
AND INTERNAL TERMINATION
®
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)
pd
r
f
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
/Q0
■ꢀ AllꢀGigabitꢀEthernetꢀclockꢀdistribution
2:1 Mux
IN0
VT0
Q1
50Ω
50Ω
/Q1
0
1
/IN0
VREF-AC0
Q2
Mux
S
/Q2
IN1
VT1
50Ω
50Ω
Q3
/Q3
/IN1
Q4
VREF-AC1
/Q4
SEL
(TTL/CMOS)
Q5
/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
1
Issue Date: July 2010
Precision Edge®
SY58035U
Micrel, Inc.
PACKAGE/ORDERINGꢀINFORMATION
Ordering Information(1)
Package Operating
Package
Lead
PartꢀNumberꢀ
Typeꢀ
MLF-32
MLF-32
MLF-32
Rangeꢀ
Industrial
Industrial
Industrial
Markingꢀ
Finish
32 31 30 29 28 27 26 25
1
24
23
GND
IN0
VT0
VREF-AC0
/IN0
IN1
VT1
VREF-AC1
/IN1
SY58035UMI
SY58035U
SY58035U
Sn-Pb
Sn-Pb
2
3
4
5
6
7
VCC
Q2
/Q2
Q3
/Q3
VCC
GND
SY58035UMITR(2)
SY58035UMG(3)
22
21
20
19
18
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
8
17
9
10 11 12 13 14 15 16
Notes:
1. Contact factory for die availability. Dice are guaranteed at T = 25°C, DC electricals only.
A
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.
ꢀ
ꢀ
ꢀ
ꢀ
31
ꢀ
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.
10
NC
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 VCC–1.2V. It is used for AC-coupling inputs
(IN,/IN).ConnectVREF-AC directlytotheVTpin.Bypasswith0.01µFlowESRcapacitorto
VCC. 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
0
IN0 Input Selected
IN1 Input Selected
1
M9999-073010
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2
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
CC
CC
............................................................. +3.0V to +3.6V
Input Voltage (V )...........................................–0.5V to V
IN
CC
Ambient Temperature Range (T ) .............. –40°C to +85°C
LVPECL Output Current (I
)
A
OUT
(3)
Continuous ............................................................. 50mA Package Thermal Resistance
®
Surge.................................................................... 100mA
MLF ꢀ(θ )
JA
Still-Air .............................................................35°C/W
Termination Current
®
MLF ꢀ(ψ )
Source or sink current on V pin......................... ±100mA
JB
T
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
S
(4)
DCꢀELECTRICALꢀCHARACTERISTICS
TA= –40°C to +85°C, unless otherwise stated.
Symbolꢀ
Parameterꢀ
Conditionꢀ
Minꢀ
2.375
3.0
Typꢀ
2.5
Maxꢀ Units
VCC
Power Supply Voltage
2.625
3.6
V
V
3.3
ICC
Power Supply Current
No load, max. VCC
185
100ꢀ
250
mA
Ω
RDIFF_IN
ꢀ
DifferentialꢀInputꢀResistanceꢀ
ꢀ
90ꢀ
110ꢀ
(IN-to-/IN)
RIN
Input Resistance (IN-to-VT)ꢀ
Input HIGH Voltage (IN, /IN)
Input LOW Voltage (IN, /IN)
Input Voltage Swing (IN, /IN)
ꢀ
45ꢀ
VCC–1.2
0
50ꢀ
55ꢀ
VCC
Ω
V
VIH
VIL
VIH–0.1
1.7
V
VIN
See Figure 1a
See Figure 1b
0.1
V
VDIFF_IN
Differential Input Voltage Swing
|IN, /IN|
0.2
mV
VT IN
IN to VT (IN, /IN)
1.28
V
V
VREF-AC
Reference Voltage
VCC–1.3 VCC–1.2 VCC–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
JB
JA
for a 4-layer PCB in a still air environment, unless otherwise stated.
4.ꢀ TheꢀcircuitꢀisꢀdesignedꢀtoꢀmeetꢀtheꢀDCꢀspecificationsꢀshownꢀinꢀtheꢀaboveꢀtableꢀafterꢀthermalꢀequilibriumꢀhasꢀbeenꢀestablished.
5.
V
(min) not lower than 1.2V.
IH
M9999-073010
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Precision Edge®
SY58035U
Micrel, Inc.
(6)
LVPECLꢀOUTPUTꢀDCꢀELECTRICALꢀCHARACTERISTICS
VCC = 2.5V ±5% or 3.3V ±10%; TA= –40°C to +85°C; RLꢀ=ꢀ50ΩꢀtoꢀVCC–2V, unless otherwise stated.
Symbolꢀ
VOH
Parameterꢀ
Conditionꢀ
Minꢀ
VCC–1.145
VCC–1.945
550
Typꢀ
Maxꢀ
Units
V
Output HIGH Voltage
Output LOW Voltage
Output Differential Swing
Differential Output Voltage Swing
VCC–0.895
VCC–1.695
VOL
V
VOUT
See Figure 1a
See Figure 1b
800
1.6
mV
V
VDIFF_OUT
1.1
(6)
LVTTL/CMOSꢀDCꢀELECTRICALꢀCHARACTERISTICS
VCC = 2.5V ±5% or 3.3V ±10%; TA= -40°C to 85°C, unless otherwise stated.
Symbolꢀ
VIH
Parameterꢀ
Conditionꢀ
Minꢀ
Typꢀ
Maxꢀ
Units
V
Input HIGH Voltage
Input LOW Voltage
Input HIGH Current
Input LOW Current
2.0
VIL
0.8
40
V
IIH
–125
–300
µA
µA
IIL
Note:
6.ꢀ TheꢀcircuitꢀisꢀdesignedꢀtoꢀmeetꢀtheꢀDCꢀspecificationsꢀshownꢀinꢀtheꢀaboveꢀtableꢀafterꢀthermalꢀequilibriumꢀhasꢀbeenꢀestablished.
M9999-073010
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Precision Edge®
SY58035U
Micrel, Inc.
(7)
ACꢀELECTRICALꢀCHARACTERISTICS
VCC = 2.5V ±5% or 3.3V ±10%; TA= –40°C to 85°C, RL =ꢀ50ΩꢀtoꢀVCC–2V, unless otherwise stated.
Symbolꢀ
fMAX
Parameterꢀ
ꢀ
Conditionꢀ
ꢀ
Minꢀ
Typꢀ
Maxꢀ
Units
Maximum Operating Frequency
VOUTꢀ≥ꢀ400mVꢀ
ꢀ
4.5ꢀ
5.5ꢀ
ꢀ
GHz
tpd
Differential Propagation Delay
(IN0 or IN1-to-Q)
170
100
240
220
70
320
400
ps
ps
(SEL-to-Q)
∆tpd Tempco Differential Propagation Delay
fs/°C
ꢀ
TemperatureꢀCoefficientꢀꢀ
ꢀ
ꢀ
ꢀ
ꢀ
tSKEW
Output-to-Output Note 8
Part-to-Part Note 9
20
ps
ps
100
tJITTER
RMS Phase Jitter
Output: 622MHz
Integration Range: 12kHz to 20MHz
Adjacent Channel Note 10
Crosstalk-Induced Jitter
Output Rise/Fall Time
50
fs
0.7
psrms
ps
tr, tf
Full Swing, 20% to 80%
35
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
0
-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
10
100
1K
10K
100K
1M
10M
100M
OFFSETꢀFREQUENCYꢀ(Hz)
PhaseꢀNoiseꢀPlot:ꢀ622MHzꢀ@ꢀ3.3V
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Precision Edge®
SY58035U
Micrel, Inc.
SINGLE-ENDEDꢀANDꢀDIFFERENTIALꢀSWINGS
VDIFF_IN
,
VIN
,
VDIFF_OUT 1.6V (Typ.)
800mV (Typ.)
VOUT
Figureꢀ1a.ꢀ Single-EndedꢀVoltageꢀSwing
Figureꢀ1b.ꢀ DifferentialꢀVoltageꢀSwing
TIMING DIAGRAMS
IN
/IN
tpd
Q
/Q
Input-to-Q tpd
SEL
VCC/2
VCC/2
tpd
tpd
Q
/Q
SEL-to-Q tpd
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Precision Edge®
SY58035U
Micrel, Inc.
TYPICALꢀOPERATINGꢀCHARACTERISTICS
V
= 2.5V, GND = 0, V = 100mV, R ꢀ=ꢀ50ΩꢀtoꢀV –2V; T = 25°C, unless otherwise stated.
CC
IN
L
CC
A
Output Swing
vs.ꢀFrequency
PropagationꢀDelay
vs. Temperature
900
800
700
600
500
400
300
200
100
0
246
244
242
240
238
236
234
0
2000 4000 6000 8000 10000
FREQUENCY (MHz)
-40 -20
0
20 40 60 80 100
TEMPERATURE (°C)
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Precision Edge®
SY58035U
Micrel, Inc.
FUNCTIONALꢀCHARACTERISTICS
V
= 3.3V, GND = 0, V = 100mV, R ꢀ=ꢀ50ΩꢀtoꢀV –2V; T = 25°C, unless otherwise stated.
IN L CC A
CC
200MHzꢀOutput
1.25GHzꢀOutput
TIME (600ps/div.)
TIME (100ps/div.)
2.5GHzꢀOutput
5GHzꢀOutput
TIME (50ps/div.)
TIME (30ps/div.)
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Precision Edge®
SY58035U
Micrel, Inc.
INPUT AND OUTPUT STAGES
VCC
VCC
IN
50Ω
VT
GND
50Ω
/Q
Q
/IN
Figureꢀ2a.ꢀSimplifiedꢀDifferentialꢀInputꢀStage
Figureꢀ2b.ꢀSimplifiedꢀLVPECLꢀOutputꢀStage
INPUTꢀINTERFACEꢀAPPLICATIONS
VCC
VCC
VCC
IN
LVPECL
IN
/IN
IN
LVPECL
SY58035U
CML
/IN
/IN
NC
VREF-AC
VT
GND
VCC
Rpd
Rpd
SY58035U
SY58035U
GND
0.01µF
GND
VCC
VREF-AC
VT
Rpd
NC
NC
VREF-AC
VT
0.01µF
GND
For 3.3V, Rpd = 50Ω
For 2.5V, Rpd = 19Ω
For 3.3V, Rpd = 100Ω
For 2.5V, Rpd = 50Ω
Option: May connect VT to VCC
Figureꢀ3b.ꢀLVPECLꢀInterfaceꢀ
(AC-Coupled)
Figureꢀ3c.ꢀCMLꢀInterfaceꢀ
(DC-Coupled)
Figureꢀ3a.ꢀLVPECLꢀInterfaceꢀ
(DC-Coupled)
VCC
VCC
IN
CML
IN
/IN
LVDS
SY58035U
/IN
GND
SY58035U
VCC
0.01µF
VREF-AC
VT
GND
NC
NC
VREF-AC
VT
Figureꢀ3d.ꢀCMLꢀInterfaceꢀ
(AC-Coupled)
Figureꢀ3e.ꢀLVDSꢀInterface
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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
+3.3V
+3.3V
R1
R1
130Ω
Z = 50Ω
Z = 50Ω
+3.3V
130Ω +3.3V
ZO = 50Ω
ZO = 50Ω
50Ω
50Ω
50Ω
source
destination
R2
82Ω
R2
82Ω
VCC
R
b
Note: For 2.5V systems:
R = 19Ω
C1
0.01µF
Note: For 2.5V systems:
b
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
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Precision Edge®
SY58035U
Micrel, Inc.
®
32-PIN MicroLeadFrame ꢀ(MLF-32)
Package
EP- Exposed Pad
Die
CompSide Island
Heat Dissipation
Heat Dissipation
VEE
Heavy Copper Plane
VEE
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.
© 2005 Micrel, Incorporated.
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6GHz, 1:6 400mV LVPECL FANOUT BUFFER WITH 2:1 MUX INPUT AND INTERNAL TERMINATION
MICREL
SY58036UMI
Low Skew Clock Driver, 58036 Series, 6 True Output(s), 0 Inverted Output(s), 5 X 5 MM, MLF-32
MICROCHIP
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