LL
C
ABRACON IS
ISO9001-2015
CERTIFIED
5101 Hidden Creek Ln Spicewood TX 78669
Phone: 512-371-6159 | Fax: 512-351-8858
For terms and conditions of sales, please visit:
www.abracon.com
REVISED: 03.21.2019
ClearClock™ | Ultra-Low Jitter & Power Optimized 3.2 x 2.5 mm XO
Pb
3.2 x 2.5 x 1.0 mm
RoHS/RoHS II Compliant
MSL = 1
AX3 ESD Sensitive
Features Applications
• Exceptionally Low RMS Jitter: < 80fs Typ (150fs Max @ 156.25MHz)
• Available in industry standard frequencies between 100MHz and 200MHz
• Lowest power consumption in its class (16mA Typ LVDS @ 156.25MHz)
• ±25ppm stability over industrial operating temperature (-40 to +85ºC)
• 3.3V, 2.5V, 1.8V supply voltage options
• LVPECL, LVDS, HCSL differential outputs
• Industry standard 3.2 x 2.5 x 1.0 mm footprint
• Available in Abracon’s Global Distribution Network
• PCI Express
• 10G/40G/100G optical Ethernet
• Networking & communication
• RF systems, base stations (BTS)
• Data center
• Test & measurement
Options and Part Identication [Note 1]
Note 1: Contact Abracon for non-standard congurations and/or requests with carrier frequency callouts up to 5 & 6 digit accuracy after the decimal.
Part Number Example:
AX3PAD1-156.2500T
AX3
(1): Output
P: LVPECL
D: LVDS
H: HCSL
(2): Vdd
A: 3.3V
B: 2.5V
C: 1.8V (*)
(3): Stability over OTR
D: ±15ppm over -20°C to +70°C
F: ±25ppm over -40°C to +85°C
(4): OE Function
1: OE Pin 1; Active High
2: OE Pin 1; Active Low
3: OE Pin 2; Active High
4: OE Pin 2; Active Low
(5): Output Frequency
in MHz
Please specify the frequency in
units of MHz out to
4 digit accuracy after the decimal.
Example: “156.2500”=156.25MHz
(6): Packaging
Blank: Bulk*
T: Tape & Reel 1,000 units
T3: Tape & Reel 3,000 units
(*) Excluding
LVPECL
(*) MOQ: 250 units
LL
C
ABRACON IS
ISO9001-2015
CERTIFIED
5101 Hidden Creek Ln Spicewood TX 78669
Phone: 512-371-6159 | Fax: 512-351-8858
For terms and conditions of sales, please visit:
www.abracon.com
REVISED: 03.21.2019
ClearClock™ | Ultra-Low Jitter & Power Optimized 3.2 x 2.5 mm XO
Pb
3.2 x 2.5 x 1.0 mm
RoHS/RoHS II Compliant
MSL = 1
AX3 ESD Sensitive
Parameters Min. Typ. Max. Unit Notes
Frequency Range 100 200 MHz
Supply Voltage (Vdd) [Note 2]
2.97 3.3 3.63
V
Option A
2.37 2.5 2.62 Option B
1.71 1.8 1.89 Option C
Supply Current (Idd)
LVPECL 30 50
mA
Max. @ 200MHz; 3.3V
LVDS 16 27 Max. @ 200MHz; 3.3V
HCSL 17 30 Max. @ 200MHz; 3.3V
Operating Temperature Range -20 +70 °C Option “D”
-40 +85 Option “F”
Storage Temperature -55 +150 °C
Frequency Accuracy (Initial Set-Tolerance) at time of
shipment (Pre-Reow) @ +25°C -10 < ±5 +10 ppm Relative to carrier
Frequency Stability over Operating Temperature Range
(Relative to Post Reow Frequency)
-15 +15 ppm Over -20°C to +70°C
-25 +25 Over -40°C to +85°C
Aging over 20 Year Product Life [Note 3, 4] -15 +15 ppm
All-Inclusive Frequency Accuracy (Total Stability)
over 20 Year Product Life [Note 3]
-40 +40 ppm Over -20°C to +70°C
-50 +50 Over -40°C to +85°C
Rise (Tr) / Fall (Tf) Time (20% to 80% Vpp) 300 500 ps 20% to 80% Vpp
Duty Cycle 45 55 %
Startup Time [Note 3] < 2 5 ms
Output High Voltage (VOH)
Output Low Voltage (VOL)
LVPECL VOH Vdd-1.03 Vdd-0.60
V
50Ω to Vdd–2.0V or
Thevenin equivalent
VOL Vdd-1.85 Vdd-1.60
LVDS VOH 1.40 1.60 100Ω between
OUT-P and OUT-N
VOL 0.9 1.10
HCSL VOH 0.66 0.74 0.85 50Ω to Ground
VOL -0.15 0 0.15
Output
Enable & Disable Control
0.7*(Vdd)VOutput Enable; or No Connect
0.3*(Vdd) Output Disable; High Impedance
Output Enable Time 10 ms
Output Disable Time 0.2 μs
Output Disable Current Consumption < 10 μA OE ≤ 0.3V
RMS Phase Jitter (12kHz-20MHz BW) ≤ 75 150 fs @156.25MHz, 3.3V, LVPECL
Note 2: Supply Voltage (V dd) = 1.8V option not available with LVPECL output
Note 3: Relative to initial measured frequency @ +25°C
Note 4: Includes temperature stability, initial frequency accuracy, load pulling, power supply variation, and 20 year aging
Electrical Characteristics
LL
C
ABRACON IS
ISO9001-2015
CERTIFIED
5101 Hidden Creek Ln Spicewood TX 78669
Phone: 512-371-6159 | Fax: 512-351-8858
For terms and conditions of sales, please visit:
www.abracon.com
REVISED: 03.21.2019
ClearClock™ | Ultra-Low Jitter & Power Optimized 3.2 x 2.5 mm XO
Pb
3.2 x 2.5 x 1.0 mm
RoHS/RoHS II Compliant
MSL = 1
AX3 ESD Sensitive
RMS Phase Jitter (12kHz -20MHz BW) | Vdd= 3.3V
Frequency
(MHz) Output RMS Jitter
Typ. (fs) Max (fs)
100
HCSL 153 200
LVPECL 211 300
LVDS 304 500
114.285 LVPECL 264 500
LVDS 239 500
122.88
HCSL 122 200
LVPECL 228 300
LVDS 198 300
125
HCSL 138 200
LVPECL 91 150
LVDS 186 300
148.5 LVPECL 154 200
LVDS 158 200
150 LVPECL 154 200
LVDS 153 200
155.52 LVPECL 121 150
156.25
HCSL 113 150
LVPECL 75 150
LVDS 115 150
200 LVDS 70 150
LL
C
ABRACON IS
ISO9001-2015
CERTIFIED
5101 Hidden Creek Ln Spicewood TX 78669
Phone: 512-371-6159 | Fax: 512-351-8858
For terms and conditions of sales, please visit:
www.abracon.com
REVISED: 03.21.2019
ClearClock™ | Ultra-Low Jitter & Power Optimized 3.2 x 2.5 mm XO
Pb
3.2 x 2.5 x 1.0 mm
RoHS/RoHS II Compliant
MSL = 1
AX3 ESD Sensitive
Phase Noise Test Setup [Note 5]
• Keysight E5052B Signal Source Analyzer
• Integration Bandwidth = 12kHz to 20MHz
• Spurious Activity (entire plot trace) = Not Omitted (Normalized in dBc/Hz)
• Specifed Spur Omission Function = Not Enabled
• IF Gain = 20dB
• Correlation = 5
• Average = 3
Note 5: Contact Abracon for phase noise plots at any desired combination of V dd, differential output format, and carrier frequency within the available range
F=156.2500MHz | Vdd=3.3V | HCSL
RMS Phase Jitter = 113 fs
F=156.2500MHz | Vdd=3.3V | LVPECL
RMS Phase Jitter = 75 fs
F= 156.2500MHz | Vdd=3.3V | LVDS
RMS Phase Jitter = 115 fs
LL
C
ABRACON IS
ISO9001-2015
CERTIFIED
5101 Hidden Creek Ln Spicewood TX 78669
Phone: 512-371-6159 | Fax: 512-351-8858
For terms and conditions of sales, please visit:
www.abracon.com
REVISED: 03.21.2019
ClearClock™ | Ultra-Low Jitter & Power Optimized 3.2 x 2.5 mm XO
Pb
3.2 x 2.5 x 1.0 mm
RoHS/RoHS II Compliant
MSL = 1
AX3 ESD Sensitive
Representative Phase Noise Plots
F=100.0000MHz | Vdd=3.3V | LVPECL
RMS Phase Jitter = 211 fs
F= 100.0000MHz | Vdd=3.3V | LVDS
RMS Phase Jitter = 304 fs
Note 5: Contact Abracon for phase noise plots at any desired combination of V dd, differential output format, and carrier frequency within the available range
F= 100.0000MHz | Vdd=3.3V | HCSL
RMS Phase Jitter = 153 fs
LL
C
ABRACON IS
ISO9001-2015
CERTIFIED
5101 Hidden Creek Ln Spicewood TX 78669
Phone: 512-371-6159 | Fax: 512-351-8858
For terms and conditions of sales, please visit:
www.abracon.com
REVISED: 03.21.2019
ClearClock™ | Ultra-Low Jitter & Power Optimized 3.2 x 2.5 mm XO
Pb
3.2 x 2.5 x 1.0 mm
RoHS/RoHS II Compliant
MSL = 1
AX3 ESD Sensitive
Representative Phase Noise Plots Continued
F= 125.0000MHz | Vdd=3.3V | LVPECL
RMS Phase Jitter = 91 fs
Note 5: Contact Abracon for phase noise plots at any desired combination of V dd, differential output format, and carrier frequency within the available range
F=125.0000MHz | Vdd=3.3V | LVDS
RMS Phase Jitter = 186 fs
F= 125.0000MHz | Vdd=3.3V | HCSL
RMS Phase Jitter = 138 fs
LL
C
ABRACON IS
ISO9001-2015
CERTIFIED
5101 Hidden Creek Ln Spicewood TX 78669
Phone: 512-371-6159 | Fax: 512-351-8858
For terms and conditions of sales, please visit:
www.abracon.com
REVISED: 03.21.2019
ClearClock™ | Ultra-Low Jitter & Power Optimized 3.2 x 2.5 mm XO
Pb
3.2 x 2.5 x 1.0 mm
RoHS/RoHS II Compliant
MSL = 1
AX3 ESD Sensitive
Typical Frequency vs. Temperature Characteristics
LL
C
ABRACON IS
ISO9001-2015
CERTIFIED
5101 Hidden Creek Ln Spicewood TX 78669
Phone: 512-371-6159 | Fax: 512-351-8858
For terms and conditions of sales, please visit:
www.abracon.com
REVISED: 03.21.2019
ClearClock™ | Ultra-Low Jitter & Power Optimized 3.2 x 2.5 mm XO
Pb
3.2 x 2.5 x 1.0 mm
RoHS/RoHS II Compliant
MSL = 1
AX3 ESD Sensitive
Differential Output Waveform
LL
C
ABRACON IS
ISO9001-2015
CERTIFIED
5101 Hidden Creek Ln Spicewood TX 78669
Phone: 512-371-6159 | Fax: 512-351-8858
For terms and conditions of sales, please visit:
www.abracon.com
REVISED: 03.21.2019
ClearClock™ | Ultra-Low Jitter & Power Optimized 3.2 x 2.5 mm XO
Pb
3.2 x 2.5 x 1.0 mm
RoHS/RoHS II Compliant
MSL = 1
AX3 ESD Sensitive
Recommended Test Circuit [Note 6]
Vdd=3.3V: R1=R3=127Ω; R2=R4=82.5 Ω
Vdd=2.5V: R1=R3=250Ω; R2=R4=62.5 Ω
LVPECL LVDS @ Vdd = 3.3V & 2.5V
HCSL
Note 6: Recommended test circuit images display OE Functions Option 1 & Option 2 where the OE Function is located on Pin 1
When the OE Function is located on Pin 2, then Pin 1=No Connect & Pin 2=OE or No Connect
vdd
vdd
LL
C
ABRACON IS
ISO9001-2015
CERTIFIED
5101 Hidden Creek Ln Spicewood TX 78669
Phone: 512-371-6159 | Fax: 512-351-8858
For terms and conditions of sales, please visit:
www.abracon.com
REVISED: 03.21.2019
ClearClock™ | Ultra-Low Jitter & Power Optimized 3.2 x 2.5 mm XO
Pb
3.2 x 2.5 x 1.0 mm
RoHS/RoHS II Compliant
MSL = 1
AX3 ESD Sensitive
Dimensions: mm
Pin # Function
# 1 Option 1 & 2:[Note 7]
Output Enable/Disable
# 2 Option 3 & 4:[Note 8]
Output Enable/Disable
# 3 Ground
# 4 Output
# 5 Complementary output
# 6 Supply Voltage (Vdd)
Mechanical Dimensions
Note 7: Option 1 = Pin 1
Option 2 = Pin 1
Note 8: Option 3 = Pin 2
Option 4 = Pin 2
OE Active HIGH;
OE Active LOW;
OE Active HIGH;
OE Active LOW;
LL
C
ABRACON IS
ISO9001-2015
CERTIFIED
5101 Hidden Creek Ln Spicewood TX 78669
Phone: 512-371-6159 | Fax: 512-351-8858
For terms and conditions of sales, please visit:
www.abracon.com
REVISED: 03.21.2019
ClearClock™ | Ultra-Low Jitter & Power Optimized 3.2 x 2.5 mm XO
Pb
3.2 x 2.5 x 1.0 mm
RoHS/RoHS II Compliant
MSL = 1
AX3 ESD Sensitive
Recommended Reow Prole [Note 12]
Note 9: Ramp Up Rate (TL → T P) = 3°C / sec. MAX
Note 10: Ramp Down Rate (TP → T L) = 6°C / sec. MAX
Note 11: Time 25°C to Peak Temperature (25°C → T P) = 8 minutes MAX
Note 12: Can withstand: 2 reows
All temperatures refer to topside of the package, measured on the package body surface below.
Tp
TL
TL
Tp
TSMIN
TSMAX
Ramp Up
Ramp Down
Critical Zone
TL to Tp
2
3
1
Time
t 25˚C to Peak
25
Preheat
Temperature
Zone Description Temperature Time
1Preheat / Soak TSMIN ~ TSMAX
150°C ~ 200°C 60 ~ 180 sec.
2Reow TL
217°C 60 ~ 150 sec.
3Peak heat TP
260°C±5°C 20 ~ 40 sec.
[Note 9] [Note 10]
[Note 11]
LL
C
ABRACON IS
ISO9001-2015
CERTIFIED
5101 Hidden Creek Ln Spicewood TX 78669
Phone: 512-371-6159 | Fax: 512-351-8858
For terms and conditions of sales, please visit:
www.abracon.com
REVISED: 03.21.2019
ClearClock™ | Ultra-Low Jitter & Power Optimized 3.2 x 2.5 mm XO
Pb
3.2 x 2.5 x 1.0 mm
RoHS/RoHS II Compliant
MSL = 1
AX3 ESD Sensitive
Packaging
Blank = Bulk*
T = Tape & Reel 1,000 units/reel
T3 = Tape & Reel 3,000 units/reel
Feeding (PULL) Direction →
Dimensions: mm
Tape Dimensions
A 8.00
B 3.40
C 2.70
D 4.00
E 1.40
F 0.30
G 4.00
H Ø1.55
I 1.75
Reel Dimensions
J 180.00
K 10.90
L 11.40
M 13.20
N 2.20
O 22.00
ATTENTION: Abracon LLC’s products are COTS – Commercial-O-The-Shelf products; suitable for Commercial, Industrial and, where designated, Automotive Applica-
tions. Abracon’s products are not specifically designed for Military, Aviation, Aerospace, Life-dependent Medical applications or any application requiring high reliability
where component failure could result in loss of life and/or property. For applications requiring high reliability and/or presenting an extreme operating environment,
written consent and authorization from Abracon LLC is required. Please contact Abracon LLC for more information.
(*) MOQ: 250 units
