38-640MHz Phase Noise Less than 0.4ps (12kHz-20MHz) phase jitter

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38-640MHz Phase Noise Less than 0.4ps (12kHz-20MHz) phase jitter

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ABX8037/38/39
38-640MHz Phase Noise
Less than 0.4ps (12kHz-20MHz) phase jitter frequencies Less than 25ps peak peak jitter frequencies. phase noise output 1MHz frequency offset -144dBc/Hz 106.25MHz -144dBc/Hz 156.25MHz -144dBc/Hz 212.5MHz -140dBc/Hz 312.5MHz, -131dBC/Hz 622.08MHz 19MHz-40MHz crystal input. 38MHz-640MHz output. Available PECL, LVDS, CMOS outputs. Output Enable selector. 2.5V 3.3V operation. Available 16-pin TSSOP packages.
PACKAGE ASSIGNMENT
VDDANA XOUT SEL2^ OE_CTRL GNDANA SEL0^ SEL1^ GNDBUF QBAR VDDBUF GNDBUF
ABX803X
VDDANA
SEL0^
DESCRIPTION
ABX803X monolithic jitter phase noise high performance clock, capable maintaining 0.4ps phase jitter CMOS, LVDS PECL outputs, covering wide frequency output range 640MHz. allows high performance high frequency output, using cost fundamental crystal between 19-40MHz. frequency selector pads ABX803X enable output frequencies ABX803X designed address demanding requirements high performance applications such Fiber Channel, serial ATA, Ethernet, SAN, etc.
XOUT SEL2^ OE_CTRL
SEL1^
16-pin TSSOP
GNDBUF QBAR VDDBUF
ABX803X
GNDANA
Note1: QBAR used single ended CMOS output. Note2: Denotes internal pull resistor.
BLOCK DIAGRAM
Divider Charge Pump Loop Filter Output Divider (1,2,4,8)
GNDBUF
XOUT
XTAL
Phase Detector
x16)
QBAR
Performance Tuner
30332 Esperanza., Rancho Santa Margarita, 92688 949-546-8000 Fax: 949-546-8001 www.Abracon.com 9/1/05 Page
ABX8037/38/39
38-640MHz Phase Noise
OUTPUT ENABLE LOGICAL LEVELS
Part
ABX8038 (PECL) ABX8037 (CMOS LVDS)
(Default) (Default)
State
Output enabled Tri-state Tri-state Output enabled
DESCRIPTIONS
Name
VDDANA XOUT SEL2 OE_CTRL GNDANA GNDBUF VDDBUF QBAR GNDBUF SEL1 SEL0
TSSOP number
3x3mm number
Type
analog Circuitry.
Description
Crystal input pin. (See Crystal Specifications page Crystal output pin. (See Crystal Specifications page Output frequency Selector pin. Output enable control pin. (See OE_CTRL Logic Levels page Connect Ground analog circuitry. Tuning inductor connection. inductor recommended high small size 0402 0603 component, must placed between adjacent pin. Place inductor close possible minimize parasitic effects maintain inductor connection output buffer circuitry. PECL LVDS output. connection output buffer circuitry. VDDBUF should separately decoupled from other VDDs whenever possible. Complementary PECL, LVDS output; single ended CMOS output. connection output buffer circuitry. Output frequency Selector pin. Output frequency Selector pin.
30332 Esperanza., Rancho Santa Margarita, 92688 949-546-8000 Fax: 949-546-8001 www.Abracon.com 9/1/05 Page
ABX8037/38/39
38-640MHz Phase Noise
FREQUENCY SELECTION TABLE
SEL2
SEL1
SEL0
Selected Multiplier/Output Frequency
Max* Min* Reserved Reserved
pads have internal pull-ups (default value `1'). Bond Special Test Modes help selecting inductor value target output frequency.
PERFORMANCE TUNING INDUCTOR VALUE SELECTION
Please refer Abracon's "Tuning Assistant" software automatically calculate optimum inductor values. addition, chart below could used reference quick inductor value selection. special test modes "VCO Max" "VCO Min" determine optimum inductor value. "VCO Max" represents high range "VCO Min" represents range. output frequency "VCO Max" "VCO Min" test modes VCO/16. This means that output frequencies around crystal frequency that will used. optimum inductor value where target crystal frequency closest middle between "VCO Max" "VCO Min" output frequencies. this case will lock middle tuning range with maximum margin either side.
30332 Esperanza., Rancho Santa Margarita, 92688 949-546-8000 Fax: 949-546-8001 www.Abracon.com 9/1/05 Page
ABX8037/38/39
38-640MHz Phase Noise
ELECTRICAL SPECIFICATIONS
Absolute Maximum Ratings PARAMETERS
Supply Voltage Input Voltage, Output Voltage, Storage Temperature Ambient Operating Temperature* Junction Temperature Lead Temperature (soldering, 10s) Protection, Human Body Model
SYMBOL
MIN.
-0.5 -0.5
MAX.
+0.5 +0.5
UNITS
Exposure device under conditions beyond limits specified Maximum Ratings extended periods cause permanent damage device affect product reliability. These conditions represent stress rating only, functional operations device these other conditions above operational limits noted this specification implied. Note: Operating Temperature guaranteed design parts (COMMERCIAL INDUSTRIAL), tested COMMERCIAL grade only.
Crystal Specifications PARAMETERS
Crystal Resonator Frequency Crystal Loading Rating Crystal Shunt Capacitance Recommended
SYMBOL
(xtal) (xtal)
CONDITIONS
Parallel Fundamental Mode
MIN.
TYP.
17.7
MAX.
UNITS
Note: Crystal Loading rating: 17.7pF loading crystal sees from chip. assumed that crystal will nominal frequency this load. crystal requires less load nominal frequency, then capacitor placed series with crystal. crystal requires more load nominal frequency, capacitors placed from XOUT ground. This however reduce oscillator gain.
General Electrical Specifications PARAMETERS
Supply Current, Dynamic (with Loaded Outputs) Operating Voltage Output Clock Duty Cycle Short Circuit Current
Note: CMOS operation advised above 200MHz with 15pF load; 320MHz with 10pF load.
SYMBOL
CONDITIONS
PECL/LVDS/CMOS PECL/LVDS 38MHz<Fout<320MHz 320MHz<Fout<640MHz
MIN.
TYP.
MAX.
65/45/30 90/70
UNITS
(CMOS) 1.25V (LVDS) 1.3V (PECL)
2.25
3.63
30332 Esperanza., Rancho Santa Margarita, 92688 949-546-8000 Fax: 949-546-8001 www.Abracon.com 9/1/05 Page
ABX8037/38/39
38-640MHz Phase Noise
Jitter Specifications PARAMETERS CONDITIONS FREQUENCY
106.25MHz 156.25MHz 212.5MHz 312.5MHz 622.08MHz 106.25MHz 156.25MHz 212.5MHz 312.5MHz 622.08MHz 106.25MHz 156.25MHz 212.5MHz 312.5MHz 622.08MHz
MIN.
TYP.
MAX.
UNITS
Integrated jitter
Integrated
Period jitter
With capacitive decoupling between GND. Over 10,000 cycles.
Period jitter Peak-toPeak
With capacitive decoupling between GND. Over 10,000 cycles.
Phase Noise Specifications PARAMETERS FREQ.
106.25MHz Phase Noise relative carrier (typical) 156.25MHz 212.5MHz 312.5MHz 622.08MHz @10Hz @100Hz @1kHz -122 -120 -118 -117 -111 @10kHz -132 -132 -126 -128 -120 @100kHz -126 -128 -120 -125 -118 -144 -140 -140 -139 -128 @10M -150 -150 -150 -148 -138 dBc/Hz
UNITS
CMOS Electrical Characteristics PARAMETERS
Output drive current Output Clock Rise/Fall Time Output Clock Rise/Fall Time
SYMBOL
CONDITIONS
-0.4V, =3.3V 0.4V, 3.3V 0.3V 3.0V with load 20%-80% with Load
MIN.
TYP.
MAX.
UNITS
30332 Esperanza., Rancho Santa Margarita, 92688 949-546-8000 Fax: 949-546-8001 www.Abracon.com 9/1/05 Page
ABX8037/38/39
38-640MHz Phase Noise
LVDS Electrical Characteristics PARAMETERS
Output Differential Voltage Magnitude Change Output High Voltage Output Voltage Offset Voltage Offset Magnitude Change Power-off Leakage Output Short Circuit Current
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNITS
(see figure)
1.125 -5.7
1.375
LVDS Switching Characteristics PARAMETERS
Differential Clock Rise Time Differential Clock Fall Time
LVDS Levels Test Circuit
SYMBOL
CONDITIONS
(see figure)
MIN.
TYP.
MAX.
UNITS
LVDS Switching Test Circuit
10pF
VDIFF
10pF
LVDS Transistion Time Waveform
(Differential)
VDIFF
30332 Esperanza., Rancho Santa Margarita, 92688 949-546-8000 Fax: 949-546-8001 www.Abracon.com 9/1/05 Page
ABX8037/38/39
38-640MHz Phase Noise
PECL Electrical Characteristics PARAMETERS
Output High Voltage Output Voltage
SYMBOL
CONDITIONS
(see figure)
MIN.
1.025
MAX.
1.620
UNITS
PECL Switching Characteristics PARAMETERS
Clock Rise Time Clock Fall Time
SYMBOL
CONDITIONS
@20/80% PECL @80/20% PECL
MIN.
TYP.
MAX.
UNITS
PECL Levels Test Circuit
PECL Output Skew
2.0V
tSKEW
PECL Transistion Time Waveform
DUTY CYCLE
30332 Esperanza., Rancho Santa Margarita, 92688 949-546-8000 Fax: 949-546-8001 www.Abracon.com 9/1/05 Page
ABX8037/38/39
38-640MHz Phase Noise
LAYOUT RECOMMENDATIONS
ABX803X (XO) TSSOP
ABX803X (XO)
LAYOUT CONSIDERATIONS PERFORMANCE OPTIMIZATION
following guidelines assist with performance optimized design: Keep traces ABX803X short possible, well keeping other traces away from possible. Place crystal close possible both crystal pins device. This will reduce cross-talk between crystal other signals. Separate crystal traces from other signals PCB, allow ample distance between crystal traces. Place 0.01µF~0.1µF decoupling capacitor between GND, component side PCB, close pin. recommended place this component backside PCB. Going through vias will reduce signal integrity, causing additional jitter phase noise. highly recommended keep traces short possible. When connecting long traces inch) CMOS output, important design traces transmission line `stripline', avoid reflections ringing. this case, CMOS output needs matched trace impedance. Usually `striplines' designed impedance CMOS outputs usually have lower than impedance matching achieved adding resistor series with CMOS output `stripline' trace. Please contact Abracon application note design outputs driving long traces Gerber files ABX80 layout.
30332 Esperanza., Rancho Santa Margarita, 92688 949-546-8000 Fax: 949-546-8001 www.Abracon.com 9/1/05 Page
ABX8037/38/39
38-640MHz Phase Noise
PACKAGE INFORMATION 16-PIN SSOP
TSSOP
Symbol Min. Max. 1.20 0.05 0.15 0.19 0.30 0.09 0.20 4.90 5.10 4.30 4.50 6.40 0.45 0.75 0.65
16-PIN
30332 Esperanza., Rancho Santa Margarita, 92688 949-546-8000 Fax: 949-546-8001 www.Abracon.com 9/1/05 Page
ABX8037/38/39
38-640MHz Phase Noise
ORDERING INFORMATION
part ordering, please contact Sales Department:
30332 Esperanza., Rancho Santa Margarita, 92688 949-546-8000 Fax: 949-546-8001
PART NUMBER
order number this device combination following: Device number, Package type Operating temperature range
ABX803X
PART NUMBER TAPE REEL NONE= TUBE GREEN PACKAGE NONE= REGULAR PACKAGE PACKAGE TYPE O=TSSOP TEMPERATURE C=COMMERCIAL I=INDUSTRAL
Order Number
ABX8037OC ABX8037OC-T ABX8037OCL ABX8037OCL-T ABX8037QC ABX8037QC-T ABX8037QCL ABX8037QCL-T ABX8038OC ABX8038OC-T ABX8038OCL ABX8038OCL-T ABX8038QC ABX8038QC-T ABX8038QCL ABX8038QCL-T ABX8039OC ABX8039OC-T ABX8039OCL ABX8039OCL-T ABX8039QC ABX8039QC-T ABX8039QCL ABX8039QCL-T
Marking
ABX8037OC ABX8037OC ABX8037OCL ABX8037OCL X8037QC X8037QC X8037QCL X8037QCL ABX8038OC ABX8038OC ABX8038OCL ABX8038OCL X8038QC X8038QC X8038QCL X8038QCL ABX8039OC ABX8039OC ABX8039OCL ABX8039OCL X8039QC X8039QC X8039QCL X8039QCL
Marking
TSSOP Tube TSSOP Tape Reel TSSOP Tube (GREEN Package) TSSOP Tape Reel (GREEN Package) Tube Tape Reel Tube (GREEN Package) Tape Reel (GREEN Package) TSSOP Tube TSSOP Tape Reel TSSOP Tube (GREEN Package) TSSOP Tape Reel (GREEN Package) Tube Tape Reel Tube (GREEN Package) Tape Reel (GREEN Package) TSSOP Tube TSSOP Tape Reel TSSOP Tube (GREEN Package) TSSOP Tape Reel (GREEN Package) Tube Tape Reel Tube (GREEN Package) Tape Reel (GREEN Package)
Abracon Corporation, reserves right make changes products specifications, both time without notice. information furnished Abracon believed accurate reliable. However, Abracon makes guarantee warranty concerning accuracy said information shall responsible loss damage whatever nature resulting from reliance upon this product. LIFE SUPPORT POLICY: Abracon products authorized critical components life support devices systems without express written approval President Abracon Corporation.
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38-640MHz Phase Noise Less than 0.4ps (12kHz-20MHz) phase jitter

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