SY58033UMI [MICROCHIP]
Low Skew Clock Driver, 58033 Series, 8 True Output(s), 0 Inverted Output(s), 5 X 5 MM, MLF-32;
| 型号： | SY58033UMI |
| 厂家： | 
MICROCHIP |
| 描述： | Low Skew Clock Driver, 58033 Series, 8 True Output(s), 0 Inverted Output(s), 5 X 5 MM, MLF-32 驱动 逻辑集成电路 |
| 文件： | 总9页 (文件大小：671K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ULTRA-PRECISION 1:8 FANOUT
ꢀUFFER WITHꢀ400mV LVPECL OUTPUTS
AND INTERNAL TERMINATION
®
Precision Edge
SY58033U
FEATURES
■ Precision 1:8, 400mV LVPECL fanout buffer
■ Low-jitter performance:
®
Precision Edge
ꢀ
•ꢀ 76fs
phase jitter (typ)
RMS
DESCRIPTION
■ Guaranteed AC performance over temperature and
voltage:
The SY58033U is a 2.5V/3.3V precision, high-speed, fully
differential 400mV LVPECL 1:8 fanout buffer. The SY58033U
is optimized to provide eight identical output copies with
•ꢀ Clockꢀfrequencyꢀrange:ꢀ DCꢀtoꢀ5.5GHz
•ꢀ <80psꢀt /t times
r
f
•ꢀ <280psꢀt
•ꢀ <20psꢀskew
less than 20ps of skew and only 76fs
process clock signals as fast as 5.5GHz.
phase jitter. It can
pd
RMS
■ꢀ 100kꢀLVPECLꢀcompatibleꢀoutputs
■ Fully differential inputs/outputs
■ Accepts an input signal as low as 100mV
The differential input includes Micrel’s unique, 3-pin input
termination architecture that allows the SY58033U to directly
interface to LVPECL, CML, and LVDS differential signal
(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 solution. The LVPECL (100k temperature
compensated) outputs feature a 400mV typical swing into
50 ohms loads, and provide an extremely fast rise/fall time
guaranteed to be less than 80ps.
■ꢀ UniqueꢀinputꢀterminationꢀandꢀV pin accepts
T
DC-coupled and AC-coupled differential inputs:
(LVPECL, LVDS, and CML)
■ꢀ Powerꢀsupplyꢀ2.5Vꢀ±5%ꢀorꢀ3.3Vꢀ±10%
■ Industrial temperature range: –40°C to +85°C
■ꢀ Availableꢀinꢀ32-pinꢀ(5mmꢀxꢀ5mm)ꢀQFNꢀPackage
The SY58033U operates from a 2.5V ±5% supply or
3.3V ±10% supply and is guaranteed over the full industrial
temperature range (–40°C to +85°C). Other high-speed 1:8
fanout buffers include the CML SY58031U and the 800mV
LVPECL SY58032U. The SY58033U is part of Micrel’s high-
®
speed, Precision Edge product line.
All support documentation can be found on Micrel’s web
site at www.micrel.com.
APPLICATIONS
FUNCTIONAL ꢀLOCk DIAGRAM
■ꢀ AllꢀSONETꢀandꢀallꢀGigEꢀclockꢀdistribution
■ꢀ AllꢀFibreꢀChannelꢀclockꢀandꢀdataꢀdistribution
■ꢀ Networkꢀroutingꢀengineꢀtimingꢀdistribution
■ꢀ High-end,ꢀlow-skewꢀmultiprocessorꢀsynchronousꢀ
clockꢀdistribution
Precision Edge is a registered trademark of Micrel, Inc.
Rev.: F
Amendment: /0
M9999-072810
hbwhelp@micrel.com or (408) 955-1690
1
Issue Date: October 2011
Precision Edge®
SY58033U
Micrel, Inc.
PACkAGE/ORDERING INFORMATION
Ordering Information(1)
ꢀ
Packageꢀ Operatingꢀꢀ
Packageꢀ
Markingꢀ
PartꢀNumberꢀ
Typeꢀ
Rangeꢀ
SY58033UMG(3)
QFN-32
Pb-Free
Industrial
SY58033U with
Pb-Free bar-line indicator
SY58033UMGTR(2, 3) QFN-32
Pb-Free
Industrial
SY58033U with
Pb-Free bar-line indicator
Notes:
1. Contact factory for die availability. Dice are guaranteed at T = 25°C, DC electricals only.
A
All devices are Pb-Free.
2. Tape and Reel.
3. Pb-Free package recommended for new designs.
32-PinꢀQFNꢀ(QFN-32)
PIN DESCRIPTION
Pin Number
Pin Name
Pin Function
ꢀ
ꢀ
3,ꢀ6ꢀ
IN,ꢀ/INꢀ
DifferentialꢀSignalꢀInput:ꢀ Eachꢀpinꢀofꢀthisꢀpairꢀinternallyꢀterminatesꢀwithꢀ50Ωꢀtoꢀtheꢀꢀ
VT pin. Note that this input will default to an indeterminate state if left open.
See “Input Interface Applications” section.
4
VT
Input Termination Center-Tap: Each input terminates to this pin. The VT pin provides a
center-tap for each input (IN, /IN) to the termination network for maximum interface
flexibility.ꢀSeeꢀ“InputꢀInterfaceꢀApplications”ꢀsection.
ꢀ
ꢀ
2, 7, 17, 24
GND,
Exposed Pad
Ground. Exposed pad must be connected to a ground plane that is the same potential
as the ground pin.
1, 8, 9, 16,
18, 23, 25, 32
VCC
Positive Power Supply: Bypass with 0.1µF||0.01µF low ESR capacitors as close to the
pins as possible.
31, 30, 29, 28, 27,
Q0,/Q0, Q1,/Q1,
400mV LVPECL Differential Output Pairs: Differential buffered output copy of the
ꢀ
ꢀ
26,ꢀ22,ꢀ21,ꢀ20,ꢀ19,ꢀ Q2,ꢀ/Q2,ꢀQ3,ꢀ/Q3ꢀ inputꢀsignal.ꢀTheꢀLVPECLꢀoutputꢀswingꢀisꢀtypicallyꢀ400mVꢀintoꢀ50Ω.ꢀUnusedꢀꢀ
ꢀ
15,ꢀ14,ꢀ13,ꢀ12,ꢀꢀ
Q4,ꢀ/Q4,ꢀQ5,ꢀ/Q5,ꢀ outputꢀpairsꢀmayꢀbeꢀleftꢀfloatingꢀwithꢀnoꢀimpactꢀonꢀjitter.ꢀSeeꢀ“LVPECLꢀOutput”ꢀsection.ꢀ
11, 10
Q6, /Q6, Q7, /Q7
5
VREF-AC
Bias Reference Voltage: Equal to VCC–1.2V (approx.), and used for AC-coupled
applications. See “Input Interface Applications” section. When using VREF-AC, bypass
with 0.01µF capacitor to VCC. Maximum sink/source current is 0.5mA.
M9999-072810
hbwhelp@micrel.com or (408) 955-1690
2
Precision Edge®
SY58033U
Micrel, Inc.
AbsoluteꢀMaximumꢀRatings(1)
Operating Ratings(2)
Power Supply Voltage (V ) .......................–0.5V to +4.0V Power Supply Voltage (V ) ................. +2.375V to +3.60V
CC
CC
Input Voltage (V )...........................................–0.5V to V
Ambient Temperature Range (T ) .............. –40°C to +85°C
IN
CC
A
(4)
Current (V )
Package Thermal Resistance
T
Source or sink current on V pin......................... ±100mA
QFNꢀ(θ )
T
JA
Still-Air .............................................................35°C/W
Input Current (V )
T
QFNꢀ(ψ )
Source or sink current on IN, /IN .......................... ±50mA
JB
Junction-to-Board ............................................20°C/W
Current (V
)
REF
(3)
Source or sink current on V
................... ±1.5mA
REF-AC
Lead Temperature Soldering (20 sec.) ...................... 260°C
Storage Temperature Range (T )............ –65°C to +150°C
S
(5)
DCꢀELECTRICALꢀCHARACTERISTICS
TA= –40°C to +85°C.
Symbolꢀ
Parameterꢀ
Conditionꢀ
Minꢀ
Typꢀ
Maxꢀ
Units
VCC
Power Supply Voltage
2.5V nominal
3.3V nominal
2.375
3.0
2.5
3.3
2.625
3.6
V
V
ICC
ꢀ
Power Supply Current
ꢀ
VCC = max. No. load includes current
throughꢀ50Ωꢀpull-ups.ꢀ
180
ꢀ
250
ꢀ
mA
ꢀ
VCC–1.6
0
VIH
Input HIGH Voltage
Input LOW Voltage
Input Voltage Swing
IN, /IN, Note 6
VCC
VIH–0.1
1.7
V
V
V
V
VIL
IN, /IN
VIN
IN, /IN, see Figure 1a.
IN, /IN, see Figure 1b.
0.1
VDIFF_IN
Differential Input Voltage Swing
|IN0, /IN0|, |IN1, /IN1|
0.2
RIN
In-to-VTꢀResistanceꢀ
ꢀ
40ꢀ
50ꢀ
60ꢀ
Ω
V
V
VT IN
Max. In-to-VT (IN, /IN)
1.28
VREF-AC
VCC–1.3 VCC–1.2 VCC–1.1
(5)
LVPECLꢀDCꢀELECTRICALꢀCHARACTERISTICS
VCC = 2.5V ±5% or 3.3V ±10%; RL = 50ý to VCC–2V; TA= –40°C to +85°C unless otherwise stated
Symbolꢀ
VOH
Parameterꢀ
Conditionꢀ
Minꢀ
VCC–1.145
VCC–1.545
150
Typꢀ
Maxꢀ
Units
V
Output HIGH Voltage
Output LOW Voltage
Output Voltage Swing
Differential Voltage Swing
VCC–0.895
VCC–1.295
VOL
V
VOUT
see Figure 1a.
see Figure 1b.
400
800
mV
mV
VDIFF_OUT
300
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.ꢀ Thermalꢀperformanceꢀassumesꢀexposedꢀpadꢀisꢀsolderedꢀ(orꢀequivalent)ꢀtoꢀtheꢀdevice’sꢀmostꢀnegativeꢀpotentialꢀ(GND)ꢀonꢀtheꢀPCB.ꢀψ uses 4-layer
JB
θ
in still-air number unless otherwise stated.
JA
5.ꢀ TheꢀcircuitꢀisꢀdesignedꢀtoꢀmeetꢀtheꢀDCꢀspecificationsꢀshownꢀinꢀtheꢀaboveꢀtableꢀafterꢀthermalꢀequilibriumꢀhasꢀbeenꢀestablished.
6. V (min) not lowers than 1.2V.
IH
M9999-072810
hbwhelp@micrel.com or (408) 955-1690
3
Precision Edge®
SY58033U
Micrel, Inc.
(7)
ACꢀELECTRICALꢀCHARACTERISTICS
VCC = 2.5V ±5% or 3.3V ±10%; RL = 50ý to VCC–2V; TA = –40°C to +85°C, unless otherwise stated.
Symbolꢀ
fMAX
Parameterꢀ
ꢀ
Conditionꢀ
ꢀ
Minꢀ
Typꢀ
ꢀ
Maxꢀ Units
Maximum Operating Frequency
VOUTꢀ≥ꢀ200mVꢀ
Clockꢀ 5.5ꢀ
ꢀ
GHz
ps
tpd
Propagation Delay
(IN-to-Q)
130
200
35
280
tpd tempco
Differential Propagation Delay
fs/°C
ꢀ
TemperatureꢀCoefficient
tSKEW
Output-to-Output Skew(within device
Part-to-Part Skew
)
Note 8
Note 9
7
20
ps
ps
100
tJITTER
RMS Phase Jitter
Output = 622MHz
Integration Range 12kHz - 20MHz
76
50
fs
tr, tf
Output Rise/Fall Time
20% to 80%, at full output swing.
20
80
ps
Notes:
7. High frequency AC electricals are guaranteed by design and characterization. All outputs loaded with 50Ω to V –2V, V ꢀžꢀ100mV.
CC
IN
8. Output-to-output skew is measured between outputs under identical conditions.
9.ꢀ Part-to-partꢀskewꢀisꢀdefinedꢀforꢀtwoꢀpartsꢀwithꢀidenticalꢀpowerꢀsupplyꢀvoltagesꢀatꢀtheꢀsameꢀtemperatureꢀandꢀwithꢀnoꢀskewꢀofꢀtheꢀedgesꢀatꢀtheꢀrespec-
tive inputs. Part-to-part skew includes variation in t
.
pd
PHASEꢀNOISE
RMS Phase Jitter (Random)
12kHz to 20MHz = 76fs (Typical)
PhaseꢀNoiseꢀPlot:ꢀ622MHzꢀ@ꢀ3.3V
M9999-072810
hbwhelp@micrel.com or (408) 955-1690
4
Precision Edge®
SY58033U
Micrel, Inc.
SINGLE-ENDED AND DIFFERENTIAL SꢁINGS
Figure 1a. Single-Ended Voltage Swing
Figure 1b. Differential Voltage Swing
TIMING DIAGRAM
M9999-072810
hbwhelp@micrel.com or (408) 955-1690
5
Precision Edge®
SY58033U
Micrel, Inc.
TYPICALꢀOPERATINGꢀCHARACTERISTICS
V
= 2.5V, GND = 0, V = 100mV, T = 25°C, unless otherwise stated.
IN A
CC
M9999-072810
hbwhelp@micrel.com or (408) 955-1690
6
Precision Edge®
SY58033U
Micrel, Inc.
INPUT ꢀUFFER
Figureꢀ2.ꢀ SimplifiedꢀDifferentialꢀInputꢀBuffer
INPUT INTERFACE APPLICATIONS
Figure 3b. AC-Coupled CML
Input Interface
Figure 3a. DC-Coupled CML
Input Interface
Figure 3c. LVPECL
Input Interface
Option: May connect V to V
.
T
CC
Figure 3e. LVDS
Input Interface
Figure 3d. AC-Coupled LVPECL
Input Interface
M9999-072810
hbwhelp@micrel.com or (408) 955-1690
7
Precision Edge®
SY58033U
Micrel, Inc.
LVPECL OUTPUT
LVPECL has high input impedance, and very low output terminating the LVPECL output, which are the Parallel
impedance (open emitter), and small signal swing which Termination-Thevenin Equivalent, the Parallel Termination
results in low electromagnetic interference (EMI). LVPECL (3-Resistor), and the AC-Coupled Termination. Unused
isꢀ idealꢀ forꢀ drivingꢀ 50Ωꢀ andꢀ 100Ωꢀ controlledꢀ impedanceꢀ outputꢀ pairsꢀ mayꢀ beꢀ leftꢀ floating.ꢀ However,ꢀ single-endedꢀ
transmission lines. There are several techniques in outputs must be terminated, or balanced.
Figureꢀ4.ꢀꢀParallelꢀTermination-TheveninꢀEquivalent
Figure 5. Parallel Termination (3-Resistor)
RELATED MICREL PRODUCTS AND SUPPORT DOCUMENTATION
PartꢀNumberꢀꢀ Functionꢀ
DataꢀSheetꢀLink
SY58031U
SY58032U
SY58033U
Ultra-Precision 1:8 Fanout Buffer with 400mV CML
Outputs and Internal I/O Termination
http://www.micrel.com/product-info/products/sy58031u.shtml
Ultra-Precision 1:8 Fanout Buffer with LVPECL
Outputs and Internal Termination
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
Ultra-Precision 1:8 Fanout Buffer with 400mV LVPECL
Outputs and Internal Termination
32-MLF® Manufacturing Guidelines Exposed Pad
Application Note
HBW Solutions
M9999-072810
hbwhelp@micrel.com or (408) 955-1690
8
Precision Edge®
SY58033U
Micrel, Inc.
32-PINꢀQFNꢀꢀ(QFN-32)
PCBꢀThermalꢀConsiderationꢀforꢀ32-PinꢀQFNꢀPackage
(Alwaysꢀsolder,ꢀorꢀequivalent,ꢀtheꢀexposedꢀpadꢀtoꢀtheꢀPCB)
PackageꢀNotes:
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.
M9999-072810
hbwhelp@micrel.com or (408) 955-1690
9
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