Model: FXU-HC72 SERIES
HCMOS 7 x 5mm 2.5V Oscillator
Features
ULTRA Low Jitter
Low Cost
X
PRESS
Delivery
Frequency Resolution to six decimal places
Stabilities to ± 20 PPM
-20 to +70°C or -40 to +85°C operating temperatures
Tri-State Enable / Disable Feature
Industry Standard Package, Footprint & Pin-Out
Fully RoHS compliant
Gold over Nickel Termination Finish
Serial ID with Comprehensive Traceability
V
DD
Enable / Disable
Freq: 0.016 MHz to 167MHz
Rev. 07/23/2015
Applications
ANY application requiring a high
performance HCMOS oscillator
SONET
Ethernet
Storage Area Network
Broadband Access
Microprocessors / DSP / FPGA
Industrial Controllers
Test and Measurement Equipment
X
PRESS
O
ASICs
GND
FOX
OUTPUT
For more information -- Click on the drawing
Contents
page
Description
The Fox X
PRESS
O-ULTRA Crystal Oscillator is a
breakthrough in configurable Frequency Control
Solutions. X
PRESS
O-ULTRA utilizes a family of
proprietary ASICs, designed and developed by Fox,
with a key focus on noise reduction technologies.
The 4
th
order Delta Sigma Modulator reduces noise to
the levels that are comparable to traditional Bulk
Quartz and SAW oscillators. The ASICs family has
the ability to select the output type and supply
voltage.
With the X
PRESS
O-ULTRA lead-time, low cost, low
noise, wide frequency range, excellent ambient
performance, X
PRESS
O-ULTRA is an excellent choice
over the conventional technologies.
Finished X
PRESS
O-ULTRA parts are 100% final
tested.
Model Selection & Part Number Guide
2
Electrical Characteristic
3
Absolute Maximums
3
Output Wave Characteristics
4
Phase Noise
5
Jitter
5
Pin Assignment
6
Recommended Circuit
6
6
Reflow
Mechanical Drawing and Pad Layout
7
Tape and Reel Specification
8
Label
8
Traceability – LOT Number & Serial Identification 9
Mechanical Test
10
11
Other X
PRESS
O Series Links
Fox Contact Information
11
Page 1 of 11
Fox Electronics 5570 Enterprise Parkway Fort Myers, Florida 33905 USA +1.239.693.0099 FAX +1.239.693.1554
An Integrated Device Technology, Inc. company
FOXonline.com
FXU-HC72 Series
Model Selection Guide & Fox Part Number
STEP #1:
Customer selects the Model Description and provides to Fox Customer Service
Model Description
FXU – H C 7 2 5 R – 156.25
Frequency (in MHz)
Resolutions to 6 places
past the decimal point
H
= HCMOS
C
= Ceramic
X
= HCMOS
(comp 2
nd
output)
7
=
7 x 5mm
2 = 2.5 V
blank
= -20°C to +70°C
0
= ± 100 PPM
R
= -40°C to +85°C
5
= ± 50 PPM
6
= ± 25 PPM
8 = ± 20 PPM
(-20°C to +70°C)
STEP #2:
The Fox Customer Service team provides a customer specific Part Number
for use on their Bill Of Materials (BOM).
Fox Part Number
(The assigned Fox Part Number must be on the BOM – not the above Model Description)
(This will ensure receipt of the proper part)
855A – 156.25 – 3
The 1
st
Field
Product Code #
855A = FXU–HC72
855F = FXU-XC72
The 3
rd
Field
Fox Internally Generated Number
The 2
nd
Field
The Customer’s Frequency
(If any specification changes,
the last digits change)
(The same specs for a different customer
also changes the last digits)
This example,
FXU-HC725R-156.25
= HCMOS Output, Ceramic, 7 x 5mm Package, 2.5V,
±50 PPM Stability, -40 to +85°C Temperature Range, at 156.25 MHz
Page
2 of 11
© 2015 FOX ELECTRONICS | ISO9001:2008 Certified
An Integrated Device Technology, Inc. company
FXU-HC72 Series
Electrical Characteristics
Parameters
Frequency Range
Frequency Stability
1
Temperature Range
Supply Voltage
Input Current
(@ Standard Load)
Output Load
Start-Up Time
Output Enable / Disable Time
Moisture Sensitivity Level
Termination Finish
T
STG
V
DD
I
DD
Symbol
F
O
T
O
Condition
0.016 MHz to 167 MHz
Standard operating
Optional operating
Storage
Standard
0.016 to 62.5 MHZ
62.5+ to 125 MHz
125+ to 167 MHz
Standard
Maximum Value
(unless otherwise noted)
T
S
MSL
JEDEC J-STD-20
0.016 MHz to 167 MHz
100, 50, 25, 20
2
PPM
-20°C to +70°C
-40°C to +85°C
-55°C to +125°C
2.5 V ± 5%
80 mA
85 mA
92 mA
15 pF
10 mS
100 nS
1
Au
Note 1 – Stability is inclusive of 25°C tolerance, operating temperature range, input voltage change, load change, aging, shock and vibration.
Note 2 –. ±20 PPM stability -20°C to +70°C only.
Absolute Maximum Ratings
(Useful life may be impaired.
Parameters
Input Voltage
Operating Temperature
Storage Temperature
Junction Temperature
ESD Sensitivity
For user guidelines only, not tested)
Symbol
V
DD
T
AMAX
T
STG
HBM
Condition
Maximum Value
(unless otherwise noted)
Human Body Model
–0.5V to +5.0V
–55°C to +105°C
–55°C to +125°C
125°C
1 kV
Page
3 of 11
© 2015 FOX ELECTRONICS | ISO9001:2008 Certified
An Integrated Device Technology, Inc. company
FXU-HC72 Series
Output Wave Characteristics
Parameters
Low Output Voltage
High Output Voltage
Output Symmetry
@ 50% V
P-P
Level
(See Drawing Below)
Output Enable
Note1 (PIN # 1)
Voltage
Output Disable
Note1 (PIN # 1)
Voltage
Cycle Rise Time
(10%~90%V
DD
- See Drawing Below)
Symbol
V
OL
V
OH
Condition
0.016 MHz to 167 MHz
0.016 MHz to 167 MHz
0.016 to to 125 MHz
125+ to 167 MHz
Maximum Value
(unless otherwise noted)
V
IH
V
IL
T
R
T
F
0.016 MHz to 167 MHz
0.016 MHz to 167 MHz
10%V
DD
90%V
DD
Minimum
45% ~ 55%
40% ~ 60%
≥
70% V
DD
≤
30% V
DD
2.5 nS
2.5 nS
Cycle Fall Time
(90%~10%V
DD
- See Drawing Below)
Rise Time / Fall Time Measurements
10% to 90%
0V to V
DD
20% to 80%
30% to 70%
10% - 90%
Rise Time
90% - 10%
Fall Time
80 - 20
Times
70 - 30
Times
Oscillator Symmetry
On Time
1/2 Period
Off Time
1/2 Period
50% V
DD
Period
Ideally, Symmetry should be 50/50 -- Other expressions are 45/55 or 55/45
Page
4 of 11
© 2015 FOX ELECTRONICS | ISO9001:2008 Certified
An Integrated Device Technology, Inc. company
FXU-HC72 Series
Phase Noise (typical measurements at 156.25 MHz)
.
Jitter is frequency dependent. Below are typical values at 156.25 MHz.
HCMOS Phase Jitter & Time Interval Error (TIE)
Frequency
156.25 MHz
Phase Jitter (pS)
(12kHz to 20MHz)
TIE (pS)
(sigma of jitter distribution)
0.33
1.3
Phase Jitter
is integrated from Agilent 5052A Signal Noise Analyzer; measured directly into 50 ohm input; V
DD
= 2.5V.
TIE
was measured on LeCroy LC684 Digital Storage Scope, directly into 50 ohm input, with Amherst M1 software; V
DD
= 2.5V.
Per
MJSQ
spec (Methodologies for Jitter and Signal Quality specifications)
HCMOS Random & Deterministic Jitter Composition
Frequency
156.25 MHz
Random (Rj)
(pS RMS)
Deterministic (Dj)
(pS P-P)
Total Jitter (Tj)
(14 x Rj) + Dj
13.8
0.76
3.0
Rj and Dj
, measured on LeCroy SDA-6000A Digital Storage Scope, directly into 50 ohm input, with Amherst M1 software.
Per
MJSQ
spec (Methodologies for Jitter and Signal Quality specifications
)
Page
5 of 11
© 2015 FOX ELECTRONICS | ISO9001:2008 Certified
An Integrated Device Technology, Inc. company
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