SY88913V_10 [MICREL]
5V/3.3V 1.25Gbps HIGH-SPEED LIMITING POST AMPLIFIER; 5V / 3.3V 1.25Gbps的高速限幅后置放大器
| 型号： | SY88913V_10 |
| 厂家： | 
MICREL SEMICONDUCTOR |
| 描述： | 5V/3.3V 1.25Gbps HIGH-SPEED LIMITING POST AMPLIFIER |
| 文件： | 总7页 (文件大小：366K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SY88913V
5V/3.3V 1.25Gbps HIGH-SPEED
LIMITING POST AMPLIFIER
FEATURES
DESCRIPTION
■ 3.3V and 5V power supply options
■ Up to 1.5Gbps operation
■ Low power
TheꢀSY88913Vꢀlimitingꢀpostꢀamplifierꢀwithꢀitsꢀhighꢀgainꢀ
andꢀwideꢀbandwidthꢀisꢀidealꢀforꢀuseꢀasꢀaꢀpostꢀamplifierꢀinꢀ
fiber-opticꢀreceiversꢀwithꢀdataꢀratesꢀupꢀtoꢀ1.5Gbps.ꢀSignalsꢀ
asꢀsmallꢀasꢀ5mVp-pꢀcanꢀbeꢀamplifiedꢀtoꢀdriveꢀdevicesꢀwithꢀ
PECL inputs. The SY88913V generates a chatter-free PECL
Loss of Signal (/LOS) output.
TheꢀSY88913Vꢀincorporatesꢀaꢀprogrammbleꢀlevelꢀdetectꢀ
function to identify when the input signal has been lost. This
informationꢀcanꢀbeꢀfedꢀbackꢀtoꢀtheꢀ/ENꢀinputꢀofꢀtheꢀdeviceꢀ
to maintain stability under loss of signal conditions. Using
LOSLVLꢀpinꢀtheꢀsensitivityꢀofꢀtheꢀlevelꢀdetectꢀcanꢀbeꢀadjusted.ꢀ
The LOSLVLꢀ voltageꢀ canꢀ beꢀ setꢀ byꢀ connectingꢀ aꢀ resistorꢀ
dividerꢀ betweenꢀ VCC and VREF, Figure 2. Figure 3 and 4
showꢀtheꢀrelationshipꢀbetweenꢀinputꢀlevelꢀsensitivityꢀandꢀtheꢀ
■ Low noise
■ Chatter-Free /LOS Generation
■ PECL /LOS Output
■ TTL /EN Input
■ꢀ Differential PECL inputs for data
■ /EN input is TTL with internal 27K pull up
■ Single power supply
■ Designed for use with Micrel-Synergy laser diode
driver and controller
voltageꢀsetꢀonꢀLOSLVL
.
■ Available in a tiny 10-pin (3mm) MSOP
APPLICATIONS
■ 1.25Gbps Gigabit Ethernet
■ 531Mbps and 1062Mbps Fibre Channel
■ 622Mbps SONET
■ Gigabit Interface Converter
BLOCK DIAGRAM
Rev.:ꢀꢀDꢀ
Amendment:ꢀ/0
M9999-071310
hbwhelp@micrel.com or (408) 955-1690
1
IssueꢀDate:ꢀꢀJulyꢀ2010
Micrel, Inc.
SY88913V
PACKAGE/ORDERING INFORMATION
Ordering Information
Package
Type
Operating
Range
Package
Marking
Lead
Finish
Part Number
SY88913VKC
SY88913VKCTR(1)
K10-1
K10-1
Commercial
Commercial
913V
913V
Sn-Pb
Sn-Pb
SY88913VKGꢀ
ꢀ
SY88913VKGTR(1)
ꢀ
K10-1ꢀ
ꢀ
Industrialꢀꢀ
ꢀ
913Vꢀwithꢀꢀ
Pb-Free
Pb-Freeꢀbar-lineꢀindicatorꢀ NiPdAu
913V with Pb-Free
Pb-Freeꢀbar-lineꢀindicatorꢀ NiPdAu
K10-1
Industrial
ꢀ
ꢀ
16-Pin MSOP (K10-1)
Note:
1. Tape and Reel.
PIN NAMES
GENERAL DESCRIPTION
General
Pin
ꢀ DINꢀꢀ
ꢀ /DINꢀ
LOSLVL
Type
DataꢀInputꢀ
DataꢀInputꢀ
Function
The SY88913V is an integrated limiting amplifier
intendedꢀ forꢀ high-frequencyꢀ fiber-opticꢀ applications.ꢀ Theꢀ
circuitꢀconnectsꢀtoꢀtypicalꢀtransimpedanceꢀamplifiersꢀfoundꢀ
withinꢀ aꢀ fiber-opticsꢀ link.ꢀ Theꢀ linearꢀ signalꢀ outputꢀ fromꢀ aꢀ
transimpedanceꢀamplifierꢀcanꢀcontainꢀsignificantꢀamountsꢀofꢀ
noise,ꢀandꢀmayꢀvaryꢀinꢀamplitudeꢀoverꢀtime.ꢀTheꢀSY88913Vꢀ
limitingꢀamplifierꢀquantizesꢀtheꢀsignalꢀandꢀoutputsꢀaꢀvoltage-
limitedꢀwaveform.
DataꢀInput
InvertingꢀDataꢀInput
ꢀ
Inputꢀ
ꢀ
LossꢀofꢀSignalꢀLevelꢀSet
OutputꢀEnableꢀ(activeꢀLow)
ꢀ /ENꢀ
TTLꢀInputꢀ
/LOS
PECL Output
Loss of Signal Indicator
(activeꢀLow)
ꢀ ꢀ
ꢀ GNDꢀ
ꢀ DOUT
ꢀ /DOUT
VCC
VREF
ꢀ ꢀ
ꢀ
ꢀ
ꢀ
Groundꢀꢀ
Ground
The TTL /EN pin allows the user to disable the signal
withoutꢀremovingꢀtheꢀinputꢀsignal.
ꢀ
PECLꢀOutputꢀ
PECLꢀOutputꢀ
PowerꢀSupplyꢀ
Output
DataꢀOutput
ꢀ
InvertingꢀDataꢀOutput
PositiveꢀPowerꢀSupply
ꢀ
Reference Voltage Output
forꢀLOSꢀLevelꢀSetꢀ(seeꢀFig.ꢀ2)
ꢀ
ꢀ
ꢀ
M9999-071310
hbwhelp@micrel.com or (408) 955-1690
2
Micrel, Inc.
SY88913V
ABSOLUTE MAXIMUM RATINGS(1)
Symbol
Rating
Value
0 to +7.0
Unit
V
VCC
Power Supply Voltage
Input Voltage
ꢀ
DIN,ꢀ/DIN
0 to VCC
V
ꢀꢀ DOUT,ꢀ/DOUT,ꢀ/LOSꢀ
OutputꢀVoltageꢀ(withꢀ50Ωꢀload)ꢀ
Input Voltage
VCC –2.5 to VCC +0.3
0 to VCC
V
LOSLVL
VREF
TA
V
Output Voltage
VCC –2.0 to VCC
–40 to +85
–55 to +125
125
V
Operating Temperature Range
Storage Temperature Range
MaxꢀJunctionꢀTemperature
°C
°C
°C
T
store
T
JUNCTION
Note:
1.ꢀ Permanentꢀdeviceꢀdamageꢀmayꢀoccurꢀifꢀabsoluteꢀmaximumꢀratingsꢀareꢀexceeded.ꢀꢀThisꢀisꢀaꢀstressꢀratingꢀonlyꢀandꢀfunctionalꢀoperationꢀisꢀnotꢀimpliedꢀ
atꢀconditionsꢀotherꢀthanꢀthoseꢀdetailedꢀinꢀtheꢀoperationalꢀsectionsꢀofꢀthisꢀdataꢀsheet.ꢀꢀExposureꢀtoꢀabsoluteꢀmaximumꢀratlngꢀconditionsꢀforꢀextendedꢀ
periodsꢀmayꢀaffectꢀdeviceꢀreliability.
DC ELECTRICAL CHARACTERISTICS
VCCꢀ=ꢀ+3.3Vꢀ±10%ꢀorꢀ+5Vꢀ±10%,ꢀRLOADꢀ=ꢀ50ΩꢀtoꢀVCC–2V
TA = –40°C
Min. Max.
TA = 0°C
TA = +25°C
Typ.
TA = +85°C
Symbol
Parameter
Power Supply
Current(1)
Min.
Max.
Min.
Max.
Min.
Max.
Unit
ICC
5V
3.3V
—ꢀ
35ꢀ
—ꢀ
35ꢀ
—ꢀ
—
21ꢀ
23
35ꢀ
35
—ꢀ
40ꢀ
mA
—
35
—
35
—
40
IIL
/EN Input LOW Current
–0.3(5)
—
–0.3(5)
—
–0.3(5)
—
—
–0.3(5)ꢀ
—ꢀ
mA
µA
IIH
/ENꢀInputꢀHIGHꢀCurrentꢀ
—
—
20(2)
—
—
20(2)
—
—
—
—
20(2)
—
—
20(2)ꢀ
100(3)
100(3)
100(3)
100(3)
VCMR
Common Mode Range ꢀ GNDꢀ+2.0ꢀ VCCꢀ–1.0ꢀ GNDꢀ+2.0ꢀ VCCꢀ–1.0ꢀ GNDꢀ+2.0ꢀ
—ꢀ
±40ꢀ
—
VCCꢀ–1.0ꢀ GNDꢀ+2.0ꢀ VCC –1.0
V
mV
V
Voffset
LOSLVL
VOH
ꢀ ꢀ
ꢀ
DifferentialꢀOutputꢀOffsetꢀꢀ
—ꢀ
±160ꢀ
—ꢀ
±160ꢀ
—ꢀ
±160ꢀ
—ꢀ
±160ꢀ
VCC
LOSLVLꢀLevelꢀ
ꢀ
VREF
VCC
VREF
VCC
VREF
VCC
VREF
ꢀ
DOUTꢀandꢀ/DOUT
HIGHꢀOutputꢀ
VCC–1085 VCC–880 VCC–1025 VCC–880 VCC–1025 VCC–955 VCC–880 VCC–1025
VCC–880
mV
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
VOLꢀ
DOUTꢀandꢀ/DOUT
VCC–1830 VCC–1555 VCC–1810 VCC–1620 VCC–1810 VCC–1705 VCC–1620 VCC–1810 VCC–1620
mV
LOW Output
VREF
VIH
Reference Supply(4)
VCC–1.38 VCC–1.26 VCC–1.38 VCC–1.26 VCC–1.38 VCC–1.32 VCC–1.26 VCC–1.38
VCC–1.26
—
V
V
V
/ENꢀInputꢀHIGHꢀVoltageꢀ
/EN Input LOW Voltage
2.0
—
—
2.0
—
—
2.0
—
—
—
—
2.0
—
VIL
0.8
0.8
0.8
0.8
Notes:
1. No Output Load.
2. VIN = 2.7V.
3. VIN = VCC
.
4. IREFꢀmustꢀbeꢀlimitedꢀtoꢀbeꢀwithinꢀ–0.8mAꢀ(source)ꢀandꢀ0.5mAꢀ(sink).
5. VIN = 0.5V.
M9999-071310
hbwhelp@micrel.com or (408) 955-1690
3
Micrel, Inc.
SY88913V
AC ELECTRICAL CHARACTERISTICS
VCCꢀ=ꢀ+3.3Vꢀ±10%ꢀorꢀ+5Vꢀ±10%,ꢀRLOADꢀ=ꢀ50ΩꢀtoꢀVCC–2V.
TA = –40°C
TA = 0°C
TA = +25°C
TA = +85°C
Symbol
Parameter
Min. Max. Min. Max. Min. Typ. Max. Min. Max. Unit
Conditions
PSRR
ꢀ ꢀ
Power Supply(1)
RejectionꢀRatio
—
5
—
—
5
—
—
5
35
—
—
ꢀ
—
ꢀ
—
ꢀ
dB
ꢀ
Input referred,
55MHz
VID
Input Voltage Range
1800
1800
1800
5
1800 mVPP
VOD
ꢀ
DifferentialꢀOutputꢀꢀ
—ꢀ
200
—ꢀ
—
—ꢀ
200
—ꢀ
—
—ꢀ
200
700ꢀ
250
—ꢀ
—
—ꢀ
200
—ꢀ
—
mVꢀ
mV
VID = 15mVPP
VID = 5mVPP
Voltage Swing(2)
tOFFL
/LOS Release Time(3)
Minimum Input
—
0.5
—
0.5
—
0.1
0.5
—
0.5
µs
tONL
tOFFH
ꢀ ꢀ
VSR
ꢀ
/LOSꢀAssertꢀTime(3)
/LOS Release Time(4)
—
—
0.5
0.5
—
—
0.5
0.5
—
—
0.2
0.1
0.5
0.5
—
—
0.5
0.5
µs
µs
MaximumꢀInput
ꢀ
/LOSꢀSensitivityꢀRangeꢀ
/LOS Hysteresis
5ꢀ
50ꢀ
5ꢀ
50ꢀ
5ꢀ
—ꢀ
50ꢀ
5ꢀ
50ꢀ mVPP
HYS
tr, tf
2
8
2
8
2
4.6
8
2
8
dB
ps
Output Rise/Fall Time
—
—
260
—
—
—
260
—
—
—
170
trin,tfin
260
—
—
—
260
—
VID > 100mVPP
VID < 100mVPP
Notes:
1. Input referred noise = RMS output noise/low frequency gain.
2.ꢀ Inputꢀisꢀ622MHzꢀsquareꢀwave.
3.ꢀ Inputꢀisꢀaꢀ200MHzꢀsquareꢀwave,ꢀtrꢀ<ꢀ300ps,ꢀ8mVPP.
4.ꢀ Inputꢀisꢀaꢀ200MHzꢀsquareꢀwave,ꢀtrꢀ<ꢀ300ps,ꢀ1.8VPP.
M9999-071310
hbwhelp@micrel.com or (408) 955-1690
4
Micrel, Inc.
SY88913V
APPLICATION NOTE
Output Termination
The SY88913V ground pin should be connected to the
circuitꢀboardꢀground.ꢀUseꢀmultipleꢀPCBꢀviasꢀcloseꢀtoꢀtheꢀpartꢀ
toꢀconnectꢀtoꢀground.ꢀꢀAvoidꢀlong,ꢀinductiveꢀrunsꢀwhichꢀcanꢀ
degrade performance.
TheꢀSY88913Vꢀoutputsꢀmustꢀbeꢀterminatedꢀwithꢀaꢀ50Ωꢀ
load to VCCꢀ–2Vꢀ(orꢀTheveninꢀequivalent).
Layout and PCB Design
Since the SY88913V is a high-frequency component,
performance can largely be determined by board layout
andꢀdesign.ꢀꢀAꢀcommonꢀproblemꢀwithꢀhigh-gainꢀamplifiersꢀ
isꢀfeedbackꢀfromꢀtheꢀlargeꢀswingꢀoutputsꢀtoꢀtheꢀinputꢀviaꢀtheꢀ
power supply.
Figure 1. Differential Input Configuration
Figure 2. LOSLVL Circuit
Notes:
LOSLVL = VCC –1.32 +
R2 × 1.32
R1 + R2
R1ꢀ+ꢀR2ꢀ≥ꢀ5kΩ
M9999-071310
hbwhelp@micrel.com or (408) 955-1690
5
Micrel, Inc.
SY88913V
PERFORMANCE CURVE
LOS Assert and Deassert
LOS Assert and Deassert
Levels vs LOS
Levels vs LOS
LVL
LVL
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
5.0V
3.3V
T
A = 25°C
T
A = 25°C
1.25Gbps
1.25Gbps
Pattern 2 7-1
Pattern 2 7-1
0
-0.2 -0.4 -0.6 -0.8 -1.0 -1.2
0
-0.2 -0.4 -0.6 -0.8 -1.0 -1.2
LOS
= V
– V (V)
LOS
= V CC – V (V)
LVL
CC
LVL
Figure 4. 5.0V LOS Assert and
Deassert Levels vs. LOSLVL
Figure 3. 3.3V LOS Assert and
Deassert Levels vs. LOSLVL
M9999-071310
hbwhelp@micrel.com or (408) 955-1690
6
Micrel, Inc.
SY88913V
10 LEAD MSOP (K10-1)
MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA
t e l + 1 (408) 944-0800 f a x + 1 (408) 474-1000 w e b ꢀhttp://www.micrel.comꢀ
TheꢀinformationꢀfurnishedꢀbyꢀMicrelꢀinꢀthisꢀdataꢀsheetꢀisꢀbelievedꢀtoꢀbeꢀaccurateꢀandꢀreliable.ꢀHowever,ꢀnoꢀresponsibilityꢀisꢀassumedꢀbyꢀMicrelꢀforꢀitsꢀuse.ꢀ
Micrelꢀreservesꢀtheꢀrightꢀtoꢀchangeꢀcircuitryꢀandꢀspecificationsꢀatꢀanyꢀtimeꢀwithoutꢀnotificationꢀtoꢀtheꢀcustomer.
MicrelꢀProductsꢀareꢀnotꢀdesignedꢀorꢀauthorizedꢀforꢀuseꢀasꢀcomponentsꢀinꢀlifeꢀsupportꢀappliances,ꢀdevicesꢀorꢀsystemsꢀwhereꢀmalfunctionꢀofꢀaꢀproductꢀcanꢀ
reasonablyꢀbeꢀexpectedꢀtoꢀresultꢀinꢀpersonalꢀinjury.ꢀLifeꢀsupportꢀdevicesꢀorꢀsystemsꢀareꢀdevicesꢀorꢀsystemsꢀthatꢀ(a)ꢀareꢀintendedꢀforꢀsurgicalꢀimplantꢀintoꢀ
theꢀbodyꢀorꢀ(b)ꢀsupportꢀorꢀsustainꢀlife,ꢀandꢀwhoseꢀfailureꢀtoꢀperformꢀcanꢀbeꢀreasonablyꢀexpectedꢀtoꢀresultꢀinꢀaꢀsignificantꢀinjuryꢀtoꢀtheꢀuser.ꢀAꢀPurchaser’sꢀ
useꢀorꢀsaleꢀofꢀMicrelꢀProductsꢀforꢀuseꢀinꢀlifeꢀsupportꢀappliances,ꢀdevicesꢀorꢀsystemsꢀisꢀatꢀPurchaser’sꢀownꢀriskꢀandꢀPurchaserꢀagreesꢀtoꢀfullyꢀindemnifyꢀ
Micrel for any damages resulting from such use or sale.
© 2005 Micrel, Incorporated.
M9999-071310
hbwhelp@micrel.com or (408) 955-1690
7
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