SC-A1440 [ETC]
CRYSTAL CLOCK OSCILLATORS; 晶体时钟振荡器
| 型号： | SC-A1440 |
| 厂家： | 
ETC |
| 描述： | CRYSTAL CLOCK OSCILLATORS |
| 文件： | 总2页 (文件大小：280K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Data Sheet 0007A
CRYSTAL CLOCK OSCILLATORS
Rev. K
LVCMOS
SC-A1440 Series
Description
The SC-A1440 Series of quartz crystal oscillators provide enable/disable 3-state LVCMOS compatible
signals for bus connected systems. Supplying Pin 1 of the SC-A1440 units with a logic “1" or open enables
its Pin 3 output. In the disable mode, Pin 3 presents a high impedance to the load.
Features
• Wide frequency range–80.0MHz to 180.0MHz
• User specified tolerance available
• High Reliability - NEL HALT/HASS qualified for
crystal oscillator start-up conditions
• Will withstand vapor phase temperatures of 253°C • High Q Crystal actively tuned oscillator circuit
for 4 minutes maximum
• Space-saving alternative to discrete component
oscillators
• Power supply decoupling internal
• No internal PLL avoids cascading PLL problems
• High frequencies due to proprietary design
• Metal lid electrically connected to ground to
reduce EMI
• 3.3 Volt operation
• High shock resistance, to 1000g
• Low Jitter - Wavecrest jitter characterization
available
• Gold plated pads
Electrical Connection
Pin
Connection
1
2
3
4
Enable/Disable
Ground
Output
VDD
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 0007A
CRYSTAL CLOCK OSCILLATORS
Rev. K
SC-A1440 Series Continued
LVCMOS
Operating Conditions and Output Characteristics
Electrical Characteristics
Parameter
Frequency
Symbol
-----
-----
VOL
Conditions
Min
Typical
Max
-----
80.0MHz
45/55%
-----
-----
180.0MHz
55/45%
0.2V
Duty Cycle
@ VDD/2
-----
Logic 0
@ 600µA
0.1V
VDD-0.1V
1.0 ns
-----
Logic 1
VOH
@ 600µA
VDD-0.2V
-----
-----
Rise & Fall Time
Jitter, RMS(2)
Tpz
tr,tf
10-90%VO
2.0 ns
3 psec
100 ns
-----
-----
-----
-----
-----
dF/F
Overtone
-----
-----
-----
-----
Enable Voltage
Disable Voltage
Frequency Stability (1)
-----
2.0V
-----
-----
-----
-----
0.8V
Overall conditions including:
voltage, calibration, temp.,
10 yr aging, shock, vibration
-100ppm
-----
+100ppm
General Characteristics
Parameter
Symbol
Conditions
-----
Min
Typical
3.3V
40 mA
-----
Max
Supply Voltage (3)
Supply Current
Output current
Operating temperature
Storage temperature
Power Dissipation
Lead temperature
Load
VDD
IDD
IO
3.00V
0.0 mA
3.60V
60 mA
±25.0 mA
70°C
No Load
Low level Output Current 0.0 mA
TA
TS
PD
TL
------
0°C
-55°C
-----
-----
-----
-----
-----
-----
-----
125°C
216 mW
300°C
15pf
-----
-----
Soldering, 10 sec.
-----
-----
ts
-----
-----
-----
Start-up Time
-----
10 ms
Environmental and Mechanical Characteristics
Mechanical Shock
Thermal Shock
Vibration
Per MIL-STD-202, Method 213, Condition E
Per MIL-STD-833, Method 1011, Condition A
0.060" double amplitude 10 Hz to 55 Hz, 35g’s 55Hz to 2000 Hz
300°C for 10 seconds
Soldering Condition
Hermetic Seal
Leak rate less than 1 x 10-8 atm.cc/sec of helium
Footnotes:
1) Standard frequency stability (±20,±25,±50ppm & others available)
2) Jitter performance is frequency dependent. Please contact factory for full Wavecrest characterization.
3) Internal high frequency power source decoupling.
Test Load:
Creating a Part Number
SC - A144X - FREQ
Package Code
Tolerance/Performance
0 ±100ppm 0-70°C
1 ±50ppm 0-70°C
SC 4 pad 5x7mm SMD
7 ±25ppm 0-70°C
Input Voltage
9 Customer Specific
A ±20ppm 0-70°C
Code Specification
A
3.3V
5V
B ±50ppm -40 to +85°C
C ±100ppm -40 to +85°C
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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