SD-A29KL9F-FREQ [NEL]
LVPECL UHF CLOCK (XO); LVPECL的超高频时钟（XO）
| 型号： | SD-A29KL9F-FREQ |
| 厂家： | 
NEL FREQUENCY CONTROLS,INC |
| 描述： | LVPECL UHF CLOCK (XO) |
| 文件： | 总3页 (文件大小：243K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Data Sheet 0628B
CRYSTAL CLOCK OSCILLATORS
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
Temperature Range, °C
H
Enable High
A
B
C
D
9
0 to 50
L
Enable Low
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 0628B
CRYSTAL CLOCK OSCILLATORS
Rev. B
SD-X29KXXX Series Continued
LVPECL UHF CLOCK (XO)
Absolute Maximum Ratings
Parameter
Operating Temperature Range
Storage Temperature Range
Supply Voltage
Symbol
Value
Unit
ºC
ºC
V
To
-40 to +85
-50 to +90
-0.5 to 4.5
0 to Vcc
Tst
Vcc
Enable/Disable Voltage
Ven/dis
V
Electrical Parameters
Parameter
Nominal Frequency
Supply Voltage
Symb
Fo
Conditions, Note
MIN
TYP
MAX
640
Unit
MHz
V
38
Vcc
Code A
3.135
2.375
3.3
2.5
3.465
2.625
100
Code B
Supply current
Icc
80
mA
Output Logic Type
LVPEC
L
Load
Output to Vcc-2V, or
Thevenin Equivalent
overall
50
Ohm
V
Output Levels
Voh
Vol
Vcc-
1.025
Vcc-
1.620
45/55
Duty Cycle (Symmetry)
Rise/Fall Time
At 50% of output voltage
swing
50/50
55/45
0.7
%
Tr/Tf 20 to 80, 80 to 20 %
0.5
0.3
ns
ps
Jitter
Integrated
J
Integrated from Phase
Noise, 12 KHz to 20
MHz, RMS
Wavecrest
Random
period,
<320 M
>320 M
<320 M
>320 M
2.5
2.5
30
ps
ps
characterized
Accumul.,
pk-to-pk
43
Deterministic <320 M
>320 M
6
ps
18
Sub-harmonics
Phase Noise
<320 M
-50
-35
-65
-95
-125
-140
-145
-148
dBc
dBc/Hz
>320 M
£(∆f) 212.5 MHz
@ 10 Hz
@100 Hz
@1 KHz
@10KHz
@100KHz
@>1MHz
Frequency Stability
∆F/F
Overall, including initial
calibration, temperature,
See “Creating a Part Number”
Not all combinations available,
ppm
aging 10 years, shock and consult factory
vibration
Enable High Option
Pin 2 Enabled
CMOS logic 1 or N/C
CMOS logic 0
0.7 Vcc
0
Vcc
V
V
Pin 2 Disabled
0.3 Vcc
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
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
Enable/Disable
N.C.
1
2
3
VEE /Ground
Output
4
5
/Output
6
VCC
Environmental and Mechanical Characteristics
Operating temp.
range
see part # table
Mechanical Shock
Thermal Shock
Vibration
Hermetic Seal
Soldering conditions
Per MIL-STD-202, Method 213, Cond. E
Per MIL-STD-883, Method 1011, Cond. A
Per MIL-STD-883, Method 2007, Cond. A
-8
Leak rate less than 1x10 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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