CRYSTAL CLOCK OSCILLATORS
LVDS UHF CLOCK (XO)
Data Sheet 0629B
Rev.
-
SD-A2D4XXX Series
Description
The
SD-A2D4XXX Series
of quartz crystal oscillators provides ultra high frequency with LVDS
complementary outputs. The outputs can be Tri-stated for test automation or combining multiple clocks. The
device is based on advanced PLL 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 - A 2D4 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
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-A2D4XXX Series
Continued
LVDS UHF CLOCK (XO)
Data Sheet 0629B
Rev.
-
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
Symb
Fo
Vcc
Icc
At receiving end
between the outputs
Differential amplitude
Amplitude error
Offset Voltage
Offset Voltage error
At outputs crossing,
room temperature
20 to 80, 80 to 20 %
Integrated from Phase
Noise, 12 KHz to 20
MHz , RMS
Random
155 MHz
period,
622 MHz
Accumul., 155 MHz
pk-to-pk
622 MHz
155 MHz @ 10 Hz
@100 Hz
@1 KHz
@10KHz
@100KHz
@1MHz
@>10M
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
90
247
1.125
45/55
Symbol
To
Tst
Vcc
Ven/dis
Conditions, Note
Code A
Value
-40 to +85
-50 to +90
-0.5 to 4.5
0 to Vcc
MIN
38
3.135
TYP
3.3
80
LVDS
100
330
1.25
50/50
0.5
0.4
MAX
640
3.465
100
110
454
50
1.375
50
55/45
0.7
Unit
ºC
ºC
V
V
Unit
MHz
V
mA
Ohm
mV
mV
V
mV
%
ns
ps
Electrical Parameters
Vod
Vof
Duty Cycle (Symmetry)
Rise/Fall Time
Jitter
Integrated
Tr/Tf
J
Wavecrest
characterized
Phase Noise
£(∆f)
Frequency Stability
∆F/F
3.5
6
20
40
-60
-90
-120
-130
-128
-144
-150
See “Creating a Part Number”
Not all combinations available,
consult factory
ps
ps
dBc/Hz
ppm
Enable High Option
Pin 2 Enabled
Pin 2 Disabled
Enable Low Option
Pin 2 Disabled
Pin 2 Enabled
0.7 Vcc
0
0.7 Vcc
0
Vcc
0.3 Vcc
Vcc
0.3 Vcc
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. -
SD-A2D4XXX Series
Continued
LVDS 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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