ClearClock™ | Ultra-Low Jitter & Power Optimized 3.2 x 2.5 mm XO
AX3
3.2 x 2.5 x 1.0 mm
R
o
HS/RoHS
II
Compliant
MSL = 1
ESD Sensitive
Pb
Features
• 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
Applications
• PCI Express
• 10G/40G/100G optical Ethernet
• Networking & communication
• RF systems, base stations (BTS)
• Data center
• Test & measurement
Options and Part Identification
[Note 1]
AX3
(1): Output
P: LVPECL
D: LVDS
H: HCSL
(6): Packaging
(3): Stability over OTR
D: ±15ppm over -20°C to +70°C
Q: ±20ppm over -40°C to +85°C
(**)
F: ±25ppm over -40°C to +85°C
(**) Contact Abracon for availability
Blank: Bulk
(***)
T: Tape & Reel 1,000 units
T3: Tape & Reel 3,000 units
(***) MOQ: 250 units
A: 3.3V
B: 2.5V
C: 1.8V
(*)
(*) Excluding
LVPECL
(2): V
dd
(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
(4): OE Function
1: OE Pin 1; Active High
3: OE Pin 2; Active High
Part Number Example:
AX3PAF1-156.2500
AX3PAF1-156.2500T
AX3PAF1-156.2500T3
Note 1: Contact Abracon for non-standard configurations and/or requests with carrier frequency callouts up to 5 & 6 digit accuracy after the decimal.
LLC
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
ABRACON IS
REVISED:
09.11.2019
ISO9001-2015
CERTIFIED
ClearClock™ | Ultra-Low Jitter & Power Optimized 3.2 x 2.5 mm XO
AX3
Electrical Characteristics
3.2 x 2.5 x 1.0 mm
R
o
HS/RoHS
II
Compliant
MSL = 1
ESD Sensitive
Pb
Parameters
Frequency Range
Standard Available Frequencies
Supply Voltage (V
dd
)
[Note 2]
Supply Current (I
dd
)
Operating Temperature Range
Storage Temperature
Frequency Accuracy (Initial Set-Tolerance)
[Note 3]
at time of shipment (Pre-Reflow) @ +25°C
Frequency Stability over
[Note 4]
Operating Temperature Range
Aging over 20 Year Product Life
[Note 5]
All-Inclusive Frequency Accuracy (Total Stability)
over 20 Year Product Life
[Note 5, 6]
LVPECL
LVPECL
LVDS
HCSL
Min.
Typ.
Max.
Unit
MHz
MHz
Notes
Contact Abracon for availability
of frequenices not listed
Option “A”
Option “B”
Option “C”
@ 200MHz; @ V
dd
= 3.3V
@ 200MHz; @ V
dd
= 3.3V
@ 200MHz; @ V
dd
= 3.3V
Option “D”
Option “F” or “Q”
Relative to carrier frequency
Option “D” (-20°C to +70°C)
Option “Q” (-40°C to +85°C)
Option “F” (-40°C to +85°C)
Option “D” (-20°C to +70°C)
Option “Q” (-40°C to +85°C)
Option “F” (-40°C to +85°C)
@ V
dd
=3.3V, R
L
=50Ω
@ V
dd
=2.5V, R
L
=50Ω
@ V
dd
=3.3V, R
L
=100Ω
@ V
dd
=2.5V, R
L
=100Ω
@ V
dd
=1.8V, R
L
=100Ω
@ V
dd
=3.3V, R
L
=50Ω to GND
@ V
dd
=2.5V, R
L
=50Ω to GND
@ V
dd
=1.8V, R
L
=50Ω to GND
100
200
100, 114.285, 122.88, 125,
148.5, 150, 155.52, 156.25, 200
2.97
3.3
3.63
2.37
2.5
2.62
1.71
1.8
1.89
30
50
16
27
17
30
-20
+70
-40
+85
-55
+150
-10
-15
-20
-25
-15
-40
-45
-50
0.2
0.3
0.15
0.15
0.3
0.3
< ±5
+10
+15
+20
+25
+15
+40
+45
+50
0.4
0.6
0.4
0.4
0.5
0.5
0.5
0.6
55
<2
5.0
V
mA
°C
°C
ppm
ppm
ppm
ppm
Rise (Tr) / Fall (Tf) Time
20% to 80% V
peak to peak
LVDS
ns
HCSL
Duty Cycle
Start-up Time
[Note 3]
45
0.3
0.3
%
ms
Note 2:
Note 3:
Note 4:
Note 5:
Note 6:
Supply Voltage (V
dd
) = 1.8V option not available with LVPECL output
Relative to initial measured frequency @ +25°C
Option Q only available in select frequencies. Please contact Abracon for availability
Relative to post-reflow frequency
Includes temperature stability, initial frequency accuracy, load pulling, power supply variation, and 20-year aging
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
ABRACON IS
LLC
REVISED:
09.11.2019
ISO9001-2015
CERTIFIED
ClearClock™ | Ultra-Low Jitter & Power Optimized 3.2 x 2.5 mm XO
AX3
Electrical Characteristics Cont.
Parameters
LVPECL
Differential
Output High Voltage (V
OH
)
Output Low Voltage (V
OL
)
LVDS
HCSL
V
OH
V
OL
V
OH
V
OL
V
OH
V
OL
0.90
0.40
-0.15
0.595
Output Voltage Swing
0.25
0.620
Output Enable & Disable Control
Output Enable Time
Output Disable Time
Output Disable Current Consumption
0.7*(V
dd
)
0.3*(V
dd
)
<1
5.0
0.2
< 10
3.2 x 2.5 x 1.0 mm
R
o
HS/RoHS
II
Compliant
MSL = 1
ESD Sensitive
Pb
Min.
V
dd
-1.03
V
dd
-1.85
Typ.
Max.
V
dd
-0.88
V
dd
-1.60
Unit
Notes
R
L
=50Ω to V
dd
–2.0V
1.40
1.10
0.74
0.00
0.75
0.35
0.70
1.60
0.85
0.15
0.93
0.45
0.78
V
R
L
=100Ω between both outputs
R
L
=50Ω to ground on each
output
LVPECL
V
LVDS
HCSL
Output Enable; or No Connect
Output Disable; High Impedance
V
ms
μs
μA
OE ≤ 0.3V
RMS Phase Jitter (12kHz -20MHz BW) | V
dd
= 3.3V
[Note 7, 8, 9]
Frequency
(MHz)
100
114.285
122.88
125
148.5
150
155.52
156.25
200
Output
HCSL
LVPECL
LVDS
LVPECL
LVDS
HCSL
LVPECL
LVDS
HCSL
LVPECL
LVDS
LVPECL
LVDS
LVPECL
LVDS
LVPECL
HCSL
LVPECL
LVDS
LVDS
LVPECL
HCSL
RMS Jitter
Typ. (fs)
Max (fs)
153
211
304
264
239
122
228
198
138
91
186
154
158
154
153
121
113
75
115
70
140
140
200
300
500
500
500
200
300
300
200
150
300
200
200
200
200
150
150
150
150
150
200
200
Note 7:
Note 8:
Note 9:
Guaranteed by characterization; RMS Phase Jitter specifications are inclusive of any spurs
Phase jitter measured with Keysight E5052B Signal Source Analyzer
Refer to the next section for phase noise test setup and representative phase noise plots
LLC
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
ABRACON IS
REVISED:
09.11.2019
ISO9001-2015
CERTIFIED
ClearClock™ | Ultra-Low Jitter & Power Optimized 3.2 x 2.5 mm XO
AX3
Phase Noise Test Setup
[Note 10]
•
•
•
•
•
•
•
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
F=156.2500MHz | V
dd
=3.3V | LVPECL
RMS Phase Jitter = 75 fs
F=156.2500MHz | V
dd
=3.3V | HCSL
RMS Phase Jitter = 113 fs
3.2 x 2.5 x 1.0 mm
R
o
HS/RoHS
II
Compliant
MSL = 1
ESD Sensitive
Pb
F= 156.2500MHz | V
dd
=3.3V | LVDS
RMS Phase Jitter = 115 fs
Note 10: Contact Abracon for phase noise plots at any desired combination of V
dd
, differential output format, and carrier frequency within the available range
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
ABRACON IS
LLC
REVISED:
09.11.2019
ISO9001-2015
CERTIFIED
ClearClock™ | Ultra-Low Jitter & Power Optimized 3.2 x 2.5 mm XO
AX3
3.2 x 2.5 x 1.0 mm
R
o
HS/RoHS
II
Compliant
MSL = 1
ESD Sensitive
Pb
Representative Phase Noise Plots Cont.
[Note 10]
F=100.0000MHz | V
dd
=3.3V | LVPECL
RMS Phase Jitter = 211 fs
F= 100.0000MHz | V
dd
=3.3V | LVDS
RMS Phase Jitter = 304 fs
F= 100.0000MHz | V
dd
=3.3V | HCSL
RMS Phase Jitter = 153 fs
Note 10: Contact Abracon for phase noise plots at any desired combination of V
dd
, differential output format, and carrier frequency within the available range
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
ABRACON IS
LLC
REVISED:
09.11.2019
ISO9001-2015
CERTIFIED
