SD-A2D7H9E-FREQ [NEL]
LVDS UHF CLOCK (XO); LVDS的超高频时钟（XO）
| 型号： | SD-A2D7H9E-FREQ |
| 厂家： | 
NEL FREQUENCY CONTROLS,INC |
| 描述： | LVDS UHF CLOCK (XO) |
| 文件： | 总3页 (文件大小：154K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Data Sheet 0642A
CRYSTAL CLOCK OSCILLATORS
Rev. -
LVDS UHF CLOCK (XO)
SD-A2D7XXX Series
Description
The SD-A2D7XXX 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 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 – 0.75MHz 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
Creating a Part Number
SD - A 2D7 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
L
N
Enable High
Enable Low
No Enable option
A
B
C
D
9
0 to 50
0 to 70
-20 to 70
-40 to 85
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
Data Sheet 0642A
CRYSTAL CLOCK OSCILLATORS
Rev. -
SD-A2D7XXX Series Continued
LVDS UHF CLOCK (XO)
Absolute Maximum Ratings
Parameter
Operating Temperature Range
Storage Temperature Range
Supply Voltage
Symbol
To
Value
Unit
ºC
ºC
V
-40 to +85
-50 to +90
-0.5 to 4.5
0 to Vcc
Tst
Vcc
Ven/dis
Enable/Disable Voltage
V
Electrical Parameters
Parameter
Nominal Frequency
Supply Voltage
Symb
Fo
Vcc
Conditions, Note
MIN
0.75
TYP
MAX
800
3.465
Unit
MHz
V
Code A
3.135
3.3
Supply current
Output Logic Type
Load
Icc
80
LVDS
100
100
110
mA
At receiving end
90
Ohm
between the outputs
Differential amplitude
Amplitude error
Output Levels
Vod
Vof
247
330
1.25
454
50
1.375
50
mV
mV
V
mV
%
Offset Voltage
1.125
45/55
Offset Voltage error
At outputs crossing,
room temperature
20 to 80, 80 to 20 %
Integrated from Phase
Noise, 12 KHz to 20
MHz , RMS
Duty Cycle
(Symmetry)
Rise/Fall Time
50/50
55/45
Tr/Tf
J
0.5
2.6 @ 155
2.5 @ 622
0.7
ns
ps
Integrated
Jitter
Wavecrest
characterized
Random
period,
Accumul., 155 MHz
pk-to-pk 622 MHz
155 MHz
622 MHz
4.3
6
27
ps
ps
40
dBc/Hz
Phase Noise
£(Δf)
ΔF/F
155 MHz @ 10 Hz
@100 Hz
-60
-90
-115
-125
-119
-130
@1 KHz
@10KHz
@100KHz
@1MHz
ppm
Frequency Stability
Overall, including
initial calibration,
temperature, aging 10
years, shock and
vibration
See “Creating a Part Number”
Not all combinations available,
consult factory
Enable High Option
Pin 2 Enabled
Pin 2 Disabled
Enable Low Option
Pin 2 Disabled
Pin 2 Enabled
V
V
CMOS logic 1 or N/C
CMOS logic 0
0.7 Vcc
0
Vcc
0.3 Vcc
CMOS logic 1 or N/C
CMOS logic 0
0.7 Vcc
0
Vcc
0.3 Vcc
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-A2D7XXX Series
Continued
LVDS UHF CLOCK (XO)
Electrical Connection
Pin
1
2
Connection
Enable/Disable
N.C.
3
4
VEE /Ground
Output
5
/Output
6
VCC
Environmental and Mechanical Characteristics
see part # table
Operating temp.
range
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 atm.cc/s of helium
See MAX reflow profile below
Mechanical Shock
Thermal Shock
Vibration
Hermetic Seal
Soldering conditions
-8
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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