± 20ppm & ± 25ppm stability (-40 to +85ºC) options
available (dependent on frequency)
•
3.3V, 2.5V, 1.8V V
dd
supply
•
LVPECL, LVDS, & HCSL differential output options
•
Output enable standard
Applications
•
•
•
•
•
•
•
•
Networking & communications
Gigabit Ethernet
Fibre Channel
SONET/SDH
RF systems, base stations (BTS)
Datacenter
PCI Express
Test & measurement
Options and Part Identification
[Note 1]
AK7
(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: ±25 ppm over -40°C to +85°C
(**) Contact Abracon for availability
Blank: Bulk
(***)
T2: Tape & Reel 250 units
T: Tape & Reel 1,000 units
(***) MOQ: 50 units
A: 3.3V
B: 2.5V
C: 1.8V
(*)
(*) Excluding
LVPECL
(2): V
dd
(4): OE Function
1: OE Pin 1; Active High
3: OE Pin 2; Active High
(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
Part Number Example:
AK7PAF1-156.2500
AK7PAF1-156.2500T2
AK7PAF1-156.2500T
Note 1: Contact Abracon for non-standard part number 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:
04.15.2019
ISO9001-2015
CERTIFIED
ClearClock™ | Ultra-Low Jitter 7.0 x 5.0mm XO
AK7
Electrical Characteristics
7.0 x 5.0 x 1.8 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”
@ 220MHz; @ V
dd
= 3.3V
@ 220MHz; @ V
dd
= 3.3V
@ 220MHz; @ 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
220
100, 122.88, 125, 148.5
156.25, 200, 212.5
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:
04.15.2019
ISO9001-2015
CERTIFIED
ClearClock™ | Ultra-Low Jitter 7.0 x 5.0mm XO
AK7
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
LVPECL
@ 200 MHz
RMS Phase Jitter
[Note 7, 8, 9]
@ +25°C
(12kHz-20MHz BW)
@ 156.25 MHz
LVDS
HCSL
LVPECL
LVDS
HCSL
70
80
125
150
120
135
75
80
90
80
110
115
0.7*(V
dd
)
0.3*(V
dd
)
<1
5.0
0.2
< 10
95
105
150
175
145
160
100
105
115
105
135
140
fsec
fsec
7.0 x 5.0 x 1.8 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
@ V
dd
=3.3V
@ V
dd
=2.5V
@ V
dd
=3.3V
@ V
dd
=2.5V
@ V
dd
=3.3V
@ V
dd
=2.5V
@ V
dd
=3.3V
@ V
dd
=2.5V
@ V
dd
=3.3V
@ V
dd
=2.5V
@ V
dd
=3.3V
@ V
dd
=2.5V
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:
04.15.2019
ISO9001-2015
CERTIFIED
ClearClock™ | Ultra-Low Jitter 7.0 x 5.0mm XO
AK7
Electrical Characteristics Cont.
Parameters
LVPECL
LVDS
7.0 x 5.0 x 1.8 mm
R
o
HS/RoHS
II
Compliant
MSL = 1
ESD Sensitive
Pb
Min.
Typ.
115
95
125
120
130
135
115
100
100
150
110
140
135
Max.
140
120
150
145
155
160
140
125
125
175
135
165
160
165
160
175
180
155
140
190
160
165
150
180
170
145
180
Unit
@ V
dd
=3.3V
@ V
dd
=2.5V
@ V
dd
=3.3V
fsec
@ V
dd
=2.5V
@ V
dd
=3.3V
@ V
dd
=2.5V
@ V
dd
=1.8V
@ V
dd
=3.3V
@ V
dd
=2.5V
@ V
dd
=3.3V
fsec
@ V
dd
=2.5V
@ V
dd
=1.8V
@ V
dd
=3.3V
@ V
dd
=2.5V
@ V
dd
=1.8V
@ V
dd
=3.3V
@ V
dd
=2.5V
@ V
dd
=3.3V
fsec
@ V
dd
=2.5V
@ V
dd
=1.8V
@ V
dd
=3.3V
@ V
dd
=2.5V
@ V
dd
=1.8V
@ V
dd
=2.5V
fsec
@ V
dd
=3.3V
@ V
dd
=2.5V
@ V
dd
=1.8V
Notes
@ 148.5 MHz
HCSL
LVPECL
@ 125 MHz
RMS Phase Jitter
@ +25°C
[Note 7, 8, 9]
LVDS
HCSL
140
135
150
155
130
115
165
135
(12kHz-20MHz BW)
LVPECL
@ 122.88 MHz
LVDS
HCSL
LVDS
@ 100 MHz
HCSL
140
125
155
145
120
155
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:
04.15.2019
ISO9001-2015
CERTIFIED
ClearClock™ | Ultra-Low Jitter 7.0 x 5.0mm XO
AK7
7.0 x 5.0 x 1.8 mm
R
o
HS/RoHS
II
Compliant
MSL = 1
ESD Sensitive
Pb
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 = 69 fsec
F=156.2500MHz | V
dd
=2.5V | LVPECL
RMS Phase Jitter = 77 fsec
F=156.2500MHz | V
dd
=3.3V | LVDS
RMS Phase Jitter = 88 fsec
F=156.2500MHz | V
dd
=2.5V | LVDS
RMS Phase Jitter = 79 fsec
Note 10:
Contact Abracon for phase noise plots at alternative supply voltage (V
京公网安备 11010802033920号
EEWORLD
