LVDS UHF CLOCK (XO)
SD-A2D5XXX Series
Description
The SD-A2D5XXX 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 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 800.000MHz
• 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
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 Data Sheet 0629C
Rev. -
SD - A 2D5 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 Temperature Range, °C
H Enable High A 0 to 50
L Enable Low B 0 to 70
C -20 to 70
D -40 to 85
9 Customer specific
Creating a Part Number
SD-A2D5XXX Series Continued
LVDS UHF CLOCK (XO)
Absolute Maximum Ratings
Parameter Symbol Value Unit
Operating Temperature Range To -40 to +85 ºC
Storage Temperature Range Tst -50 to +90 ºC
Supply Voltage Vcc -0.5 to 4.5 V
Enable/Disable Voltage Ven/dis 0 to Vcc V
Electrical Parameters
Parameter Symb Conditions, Note MIN TYP MAX Unit
Nominal Frequency Fo 38 800 MHz
Supply Voltage Vcc Code A 3.135
3.3
3.465
V
Supply current Icc 80 100 mA
Output Logic Type LVDS
Load At receiving end between
the outputs
90 100 110 Ohm
Output Levels Vod Differential amplitude 247 330 454 mV
Amplitude error 50 mV
Vof Offset Voltage 1.125 1.25 1.375 V
Offset Voltage error 50 mV
Duty Cycle (Symmetry) At outputs crossing, room
temperature
45/55 50/50 55/45 %
Rise/Fall Time Tr/Tf 20 to 80, 80 to 20 % 0.5 0.7 ns
Jitter Integrated J Integrated from Phase
Noise, 12 KHz to 20 MHz
, RMS
0.3 ps
Wavecrest
characterized
Random
period,
<320 M
>320 M
2.5
2.5
ps
Accumul.,
pk-to-pk
<320 M
>320 M
30
43
ps
Deterministic <320 M
>320 M
6
18
ps
Subharmonics <320 M
>320 M
-50
-35
dBc
Phase Noise £(∆f) 212.5 MHz @ 10 Hz
@100 Hz
@1 KHz
@10KHz
@100KHz
@>1MHz
-65
-95
-125
-140
-145
-148
dBc/Hz
Frequency Stability ∆F/F Overall, including initial
calibration, temperature,
aging 10 years, shock and
vibration
See “Creating a Part Number”
Not all combinations
available, consult factory
ppm
Enable High Option
Pin 2 Enabled
Pin 2 Disabled
CMOS logic 1 or N/C
CMOS logic 0
0.7 Vcc
0
Vcc
0.3 Vcc
V
Enable Low Option
Pin 2 Disabled
Pin 2 Enabled
CMOS logic 1 or N/C
CMOS logic 0
0.7 Vcc
0
Vcc
0.3 Vcc
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
Rev. -
CRYSTAL CLOCK OSCILLATORS Data Sheet 0629C
Rev. -
CRYSTAL CLOCK OSCILLATORS
SD-A2D5XXX 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
see part # table
Mechanical Shock Per MIL-STD-202, Method 213, Cond. E
Thermal Shock Per MIL-STD-883, Method 1011, Cond. A
Vibration Per MIL-STD-883, Method 2007, Cond. A
Hermetic Seal Leak rate less than 1x10-8 atm.cc/s of helium
Soldering conditions 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