CRYSTAL CLOCK OSCILLATORS
Data Sheet 0628B
Rev. B
LVPECL UHF CLOCK (XO)
SD-A29KXXX Series (3.3 Volt)
SD-B29KXXX Series (2.5 Volt)
Description
The
SD-X29KXXX Series
of quartz crystal oscillators provides ultra high frequency with LVPECL
complementary outputs. The outputs can be Tri-stated for test automation or combining multiple clocks. The
device is based on low noise analog harmonic multiplication for higher frequencies, and packaged in a
miniature, low profile leadless ceramic SMD package with 6 gold plated pads.
Applications and Features
• Wide frequency range – 38.0MHz to 640.000MHz
• Fiber Channel; 10 GbE; Infiniband; Network Processors; SOHO Routing
• High Reliability - NEL HALT/HASS qualified for crystal oscillator start-up conditions
• Low Phase Noise, Low Jitter
• High shock resistance, to 1000g
• Ultra High Frequency
• Tight frequency stability - ±20 ppm overall available
• Grounded lid and internal by-pass capacitor reduce EMI
• RoHS Compliant, Lead Free Construction
Creating a Part Number
SD - X 29K X X X - FREQ
Package Code
Overall Frequency Stability, ppm
SD 6 pad 5x7mm SMD
E ±20
F ±25
Input Voltage
G ±50
A
3.3V±5%
H ±100
B
2.5V±5%
9 Customer specific
Enable Option
H
Enable High
L
Enable Low
Temperature Range, °C
A 0 to 50
B 0 to 70
C -20 to 70
D -40 to 85
9
Customer specific
357 Beloit Street, P.O. Box 457, Burlington, WI 53105-0457 U.S.A. Phone 262/763-3591 FAX 262/763-2881
Email:
nelsales@nelfc.com
www.nelfc.com
CRYSTAL CLOCK OSCILLATORS
SD-X29KXXX Series
Continued
LVPECL UHF CLOCK (XO)
Data Sheet 0628B
Rev.
B
Absolute Maximum Ratings
Parameter
Operating Temperature Range
Storage Temperature Range
Supply Voltage
Enable/Disable Voltage
Parameter
Nominal Frequency
Supply Voltage
Supply current
Output Logic Type
Load
Output Levels
Voh
Vol
Symb
Fo
Vcc
Icc
Symbol
To
Tst
Vcc
Ven/dis
Conditions, Note
Code A
Code B
Value
-40 to +85
-50 to +90
-0.5 to 4.5
0 to Vcc
MIN
38
3.135
2.375
TYP
3.3
2.5
80
LVPEC
L
50
MAX
640
3.465
2.625
100
Unit
ºC
ºC
V
V
Unit
MHz
V
mA
Ohm
V
Electrical Parameters
Output to Vcc-2V, or
Thevenin Equivalent
overall
Duty Cycle (Symmetry)
Rise/Fall Time
Jitter
Integrated
Wavecrest
characterized
Tr/Tf
J
Sub-harmonics
Phase Noise
£(∆f)
Frequency Stability
∆F/F
Enable High Option
Pin 2 Enabled
Pin 2 Disabled
Enable Low Option
Pin 2 Disabled
Pin 2 Enabled
At 50% of output voltage
swing
20 to 80, 80 to 20 %
Integrated from Phase
Noise, 12 KHz to 20
MHz, RMS
Random
<320 M
period,
>320 M
Accumul.,
<320 M
pk-to-pk
>320 M
Deterministic
<320 M
>320 M
<320 M
>320 M
212.5 MHz
@ 10 Hz
@100 Hz
@1 KHz
@10KHz
@100KHz
@>1MHz
Overall, including initial
calibration, temperature,
aging 10 years, shock and
vibration
CMOS logic 1 or N/C
CMOS logic 0
CMOS logic 1 or N/C
CMOS logic 0
Vcc-
1.025
Vcc-
1.620
45/55
50/50
0.5
0.3
55/45
0.7
%
ns
ps
ps
ps
ps
dBc
dBc/Hz
2.5
2.5
30
43
6
18
-50
-35
-65
-95
-125
-140
-145
-148
See “Creating a Part Number”
Not all combinations available,
consult factory
0.7 Vcc
0
0.7 Vcc
0
Vcc
0.3 Vcc
Vcc
0.3 Vcc
ppm
V
V
357 Beloit Street, P.O. Box 457, Burlington, WI 53105-0457 U.S.A. Phone 262/763-3591 FAX 262/763-2881
Email:
nelsales@nelfc.com
www.nelfc.com
CRYSTAL CLOCK OSCILLATORS
Rev. B
SD-X29KXXX Series
Continued
LVPECL UHF CLOCK (XO)
Electrical Connection
Pin
Connection
1 Enable/Disable
2
N.C.
3
V
EE
/Ground
4
Output
5
/Output
6
V
CC
Environmental and Mechanical Characteristics
Operating temp.
range
Mechanical Shock
Thermal Shock
Vibration
Hermetic Seal
Soldering conditions
see part # table
Per MIL-STD-202, Method 213, Cond. E
Per MIL-STD-883, Method 1011, Cond. A
Per MIL-STD-883, Method 2007, Cond. A
Leak rate less than 1x10-8 atm.cc/s of helium
See MAX reflow profile below
Maximum Reflow Profile
357 Beloit Street, P.O. Box 457, Burlington, WI 53105-0457 U.S.A. Phone 262/763-3591 FAX 262/763-2881
Email:
nelsales@nelfc.com www.nelfc.com
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