SY58034U
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SY58034U - SY58034U
6GHz, FANOUT BUFFER WITH INPUT INTERNAL TERMINATION
Precision Edge SY58034U
Precision Edge® SY58034U
FEATURES
Provides ultra-low skew copies selected input input included clock switchover applications Guaranteed performance over temperature voltage: Clock frequency range: 6GHz <290ps IN-to-OUT <60ps times <20ps skew (output-to-output) Unique input isolation design minimizes crosstalk Ultra low-jitter design: <1psRMS random jitter <10psPP total jitter (clock) <1psRMS cycle-to-cycle jitter <0.7psRMS crosstalk-induced jitter supply voltage operation: 2.5V 3.3V Unique input termination accepts DCcoupled AC-coupled inputs (CML, PECL, LVDS) Internal output source termination 400mV output swing -40°C +85°C temperature range Available 32-pin (5mm 5mm) MLFpackage
Precision Edge®
DESCRIPTION
SY58034U 2.5V/3.3V precision, high-speed fanout buffer capable handling clocks 6GHz. differential input included redundant clock switchover applications. differential input includes Micrel's unique, 3-pin input termination architecture that allows device interface differential signal (AC- DC-coupled) small 100mV without level shifting termination resistor networks signal path. outputs source terminated CML, with extremely fast rise/fall times guaranteed less than 60ps. SY58034U operates from 2.5V supply 3.3V ±10% supply guaranteed over full industrial temperature range -40°C +85°C. applications that require LVPECL outputs, consider SY58035U SY58036U Multiplexers. SY58034U part Micrel's high-speed, Precision Edge® product line. support documentation found Micrel's site www.micrel.com.
APPLICATIONS
Redundant clock distribution SONET/SDH clock distribution Fibre Channel distribution Gigabit Ethernet clock distribution
FUNCTIONAL BLOCK DIAGRAM
Fanout
/IN0 VREF-AC0 /IN1 VREF-AC1 (TTL/CMOS)
Precision Edge registered trademark Micrel, Inc. MicroLeadFrame trademarks Amkor Technology, Inc. March 2005
M9999-032105 hbwhelp@micrel.com (408) 955-1690
Precision Edge® SY58034U
PACKAGE/ORDERING INFORMATION
Ordering Information(1)
VREF-AC0 /IN0 VREF-AC1 /IN1
Part Number SY58034UMI SY58034UMITR(2) SY58034UMG SY58034UMGTR(2)
Notes:
Package Operating Type Range MLF-32 MLF-32 MLF-32 MLF-32 Industrial Industrial Industrial Industrial
Package Marking SY58034U SY58034U
Lead Finish Sn-Pb Sn-Pb
SY58034U with NiPdAu Pb-free bar-line indicator Pb-Free SY58034U with NiPdAu Pb-free bar-line indicator Pb-Free
32-Pin MLF(MLF-32)
Contact factory availability. Dice guaranteed 25°C, electricals only. Tape Reel.
DESCRIPTION
Number Name IN0, /IN0 IN1, /IN1 Function Differential Input: These input pairs differential signal inputs device. These inputs accept DC-coupled signals small 100mV. Each pair internally terminates through Note that these inputs will default indeterminate state left open. Please refer "Input Interface Applications" section more details. Input Termination Center-Tap: Each side differential input pair terminates pin. pins provide center-tap termination network maximum interface flexibility. "Input Interface Applications" section more details. This single-ended TTL/CMOS-compatible input selects inputs multiplexer. Note that this input internally connected pull-up resistor will default logic HIGH state left open. select switchover function asynchronous. connect. Positive Power Supply: Bypass with 0.1µF0.01µF capacitors place close pins possible. Differential Outputs: These output pairs skew output copies selected input. output stage optimized deliver 400mV swing (single-ended) into Each output includes source-termination resistor, thus minimizing return reflections. Unused output pins left floating. Please refer "Truth Table" details. Ground. Ground exposed must connected same ground plane. Reference Voltage: These output biases VCC-1.2V. used AC-coupling inputs (IN, /IN). Connect VREF-AC directly pin. Bypass with 0.01µF capacitor VCC. "Input Interface Applications" section. Maximum sink/source current ±1.5mA. limited capability, VREF-AC only intended drive respective pin.
VT0,
/Q0, /Q1, /Q2, /Q3, /Q4, GND, Exposed VREF-AC0, VREF-AC1
TRUTH TABLE
Input Selected Input Selected
March 2005
M9999-032105 hbwhelp@micrel.com (408) 955-1690
Precision Edge® SY58034U
Absolute Maximum Ratings(1)
Power Supply Voltage (VCC -0.5V +4.0V Input Voltage (VIN) -0.5V Output Voltage (VOUT) VCC-1.0V VCC+0.5V Termination Current Source sink current ±100mA Input Current Source sink current ±50mA Source sink current VREF-AC ±2mA Lead Temperature (soldering, sec.) 260°C Storage Temperature Range -65°C +150°C
Operating Ratings(2)
Power Supply Voltage (VCC) +2.375V +2.625V +3.0V +3.6V Ambient Temperature Range (TA) -40°C +85°C Package Thermal Resistance(3) MLF(JA) Still-Air 35°C/W MLF(JB) Junction-to-Board 16°C/W
ELECTRICAL CHARACTERISTICS(4)
-40°C 85°C, unless otherwise stated. Symbol RDIFF_IN VDIFF_IN VREF-AC
Notes: Permanent device damage occur measurements "Absolute Maximum Ratings" section exceeded. This stress rating only functional operation implied conditions other than those detailed operational sections this data sheet. Exposure absolute maximum ratings conditions extended periods affect device reliability. data sheet limits guaranteed device operated beyond operating ratings. Thermal performance assumes exposed soldered equivalent) device's most negative potential PCB. determined 4-layer board still air, unless otherwise stated. circuit designed meet specifications shown above table after thermal equilibrium been established. (min) lower than 1.2V.
Parameter Power Supply Voltage
Condition
2.375
2.625 VIH-0.1
Units
Power Supply Current Differential Input Resistance |IN-/IN| Input Resistance (IN-to-VT) Input HIGH Voltage (IN, /IN) Input Voltage (IN, /IN) Input Voltage Swing (IN, /IN) Differential Input Voltage Swing |IN, /IN| (IN, /IN) Reference Voltage
load, max. Note VCC-1.6 Figure Figure
1.28 VCC-1.3 VCC-1.2 VCC-1.1
March 2005
M9999-032105 hbwhelp@micrel.com (408) 955-1690
Precision Edge® SY58034U
OUTPUT ELECTRICAL CHARACTERISTICS(6)
2.5V 3.3V ±10%; -40°C 85°C; across each output pair equivalent, unless otherwise stated. Symbol VOUT VDIFF_OUT ROUT Parameter Output HIGH Voltage Output Voltage Swing Differential Output Voltage Swing Output Source Impedance Condition Figure Figure VCC-0.020 Units
LVTTL/CMOS ELECTRICAL CHARACTERISTICS(6)
2.5V 3.3V ±10%; -40°C 85°C, unless otherwise stated. Symbol
Note: circuit designed meet specifications shown above table after thermal equilibrium been established.
Parameter Input HIGH Voltage Input Voltage Input HIGH Current Input Current
Condition
Units
-125 -300
March 2005
M9999-032105 hbwhelp@micrel.com (408) 955-1690
Precision Edge® SY58034U
ELECTRICAL CHARACTERISTICS(7)
2.5V 3.3V ±10%; -40°C 85°C, across each output pair, equivalent, unless otherwise stated. Symbol fMAX Parameter Maximum Operating Frequency Differential Propagation Delay (IN0 IN1-to-Q) (SEL-to-Q) Tempco tSKEW Differential Propagation Delay Temperature Coefficient Output-to-Output Part-to-Part tJITTER Clock Cycle-to-Cycle Jitter Random Jitter (RJ) Total Jitter (TJ) Adjacent Channel Crosstalk-Induced Jitter
Notes: High frequency electricals guaranteed design characterization. Output-to-output skew measured between outputs under identical transitions. Part-to-part skew defined parts with identical power supply voltages same temperature with skew edges respective inputs. Cycle-to-cycle jitter definition: variation periods between adjacent cycles, Tn-Tn-1 where time between rising edges output signal. Random jitter measured with K28.7 pattern, measured 2.5Gbps. Total jitter definition: with ideal clock input frequency fMAX, more than output edge 1012 output edges will deviate more than specified peak-to-peak jitter value. Crosstalk measured output while applying similar clock frequencies that asynchronous with respect each other inputs.
Condition Clock VOUT 200mV
Units
fs/°C
Note Note Note Note Note Note
psRMS psRMS psPP psRMS
Output Rise/Fall Time
Full swing,
SINGLE-ENDED DIFFERENTIAL SWINGS
VIN, VOUT 400mV (Typ.)
VDIFF_IN, VDIFF_OUT 800mV (Typ.)
Figure Single-Ended Voltage Swing
Figure Differential Voltage Swing
March 2005
M9999-032105 hbwhelp@micrel.com (408) 955-1690
Precision Edge® SY58034U
TIMING DIAGRAMS
Input-to-Q
VCC/2
VCC/2
SEL-to-Q
March 2005
M9999-032105 hbwhelp@micrel.com (408) 955-1690
Precision Edge® SY58034U
TYPICAL OPERATING CHARACTERISTICS
2.5V, 100mV, across output; 25°C, unless otherwise stated.
Output Swing Frequency
PROPAGATION DELAY (ps)
Propagation Delay Temperature
OUTPUT SWING (mV) 2000 4000 6000 8000 10000 FREQUENCY (MHz)
TEMPERATURE
March 2005
M9999-032105 hbwhelp@micrel.com (408) 955-1690
Precision Edge® SY58034U
FUNCTIONAL CHARACTERISTICS
2.5V, 400mV, across output; 25°C, unless otherwise stated.
200MHz Output
2.5GHz Output
Output Swing (100mV/div.)
TIME (600ps/div.)
Output Swing (100mV/div.)
TIME (50ps/div.)
5GHz Output
7GHz Output
Output Swing (100mV/div.)
TIME (30ps/div.)
Output Swing (100mV/div.)
TIME (20ps/div.)
March 2005
M9999-032105 hbwhelp@micrel.com (408) 955-1690
Precision Edge® SY58034U
INPUT OUTPUT STAGES
Figure Simplified Differential Input Stage
Figure Simplified Output Stage
INPUT INTERFACE APPLICATIONS
LVPECL SY58034U SY58034U 0.01µF VREF-AC 0.01µF 3.3V, 3.5V, VREF-AC
SY58034U VREF-AC
Option: connect VCC.
Figure Interface (DC-Coupled)
Figure Interface (AC-Coupled)
Figure LVPECL Interface (DC-Coupled)
LVPECL
LVDS
0.01µF
SY58034U VREF-AC
SY58034U VREF-AC
3.3V, 2.5V,
Figure LVPECL Interface (AC-Coupled)
Figure LVDS Interface
March 2005
M9999-032105 hbwhelp@micrel.com (408) 955-1690
Precision Edge® SY58034U
OUTPUT INTERFACE APPLICATIONS
bias point application
16mA
16mA
Figure DC-Coupled Termination
Figure AC-Coupled Termination
RELATED MICREL PRODUCTS SUPPORT DOCUMENTATION
Part Number SY58035U SY58036U Function 4.5GHz, LVPECL Fanout Buffer with Input Internal Termination 6GHz, 400mV LVPECL Fanout Buffer with Input Internal Termination MLFApplication Note Solutions Products Applications Data Sheet Link
March 2005
M9999-032105 hbwhelp@micrel.com (408) 955-1690
Precision Edge® SY58034U
LEAD MicroLeadFrame(MLF-32)
Package Exposed
CompSide Island
Heat Dissipation Heat Dissipation Heavy Copper Plane Heavy Copper Plane
Thermal Consideration 32-Pin MLFPackage (Always solder, equivalent, exposed PCB) Package Notes: Package meets Level qualification. parts dry-packaged before shipment. Exposed pads must soldered ground proper thermal management.
MICREL, INC. 2180 FORTUNE DRIVE JOSE, 95131
(408) 944-0800
(408) 474-1000
http://www.micrel.com
information furnished Micrel this data sheet believed accurate reliable. However, responsibility assumed Micrel use. Micrel reserves right change circuitry specifications time without notification customer. Micrel Products designed authorized components life support appliances, devices systems where malfunction product reasonably expected result personal injury. Life support devices systems devices systems that intended surgical implant into body support sustain life, whose failure perform reasonably expected result significant injury user. Purchaser's sale Micrel Products life support appliances, devices systems Purchaser's risk Purchaser agrees fully indemnify Micrel damages resulting from such sale. 2005 Micrel, Incorporated. March 2005
M9999-032105 hbwhelp@micrel.com (408) 955-1690
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