SC-C1440-FREQ [NEL]
LVCMOS; LVCMOS
| 型号： | SC-C1440-FREQ |
| 厂家： | 
NEL FREQUENCY CONTROLS,INC |
| 描述： | LVCMOS |
| 文件： | 总2页 (文件大小：221K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LVCMOS
SC-C1440 Series Rev G
SC-C1440
Series
Frequency Range: 70.0 MHz to 165.0 MHz
Description
The SC-C1440 Series of quartz crystal oscillators provide enable/disable 3-state LVCMOS compatible signals
for bus connected systems. Supplying Pin 1 of the SC-C1440 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
• 1.8 Volt operation
• High Reliability - NEL HALT/HASS qualified for
crystal oscillator start-up conditions
• Low jitter - Wavecrest jitter characterization avail-
able
• High shock resistance, to 1000g
• High Q crystal actively tuned oscillator circuit
• 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
Size, mm
5 x 7
I/O
4 pad
Supply Voltage
3.3V / 2.5V / 1.8V / 5V
• Wide frequency range—70.0 MHz to 165.0 MHz
• User specified tolerance available
• Will withstand vapor phase temperatures of 253°C
for 4 minutes maximum
• Space-saving alternative to discrete component
oscillators
• Gold plated pads
• RoHS Compliant, Lead Free Construction
Creating a Part Number
SC - C144X - FREQ
Package Code
Tolerance/Performance
SC 4 pad 5x7 mm SMD
0
1
7
100 ppm 0-70°C
50 ppm 0-70°C
25 ppm 0-70°C
Input Voltage
Code
Specification
3.3 V
2.5 V
9 Customer Specific
A
B
C
A
B
C
20 ppm 0-70°C
50 ppm -40 to ꢀ85°C
100 ppm -40 to ꢀ85°C
1.8 V
5 V
Drawing Specifications
Electrical Connection
Pin
1
Connection
Enable/Disable
Ground
2
3
4
Output
VDD
Dimensions shown in inches and millimeters.
For the most up to date speci-
fications on each NEL prod-
uct, log on to our website—
www.nelfc.com
All tolerances are 0.005 inches ꢁ 0.127mmꢂ unless otherwise specified.
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
LVCMOS
SC-C1440 Series Rev G
Frequency Range: 70.0 MHz to 165.0 MHz
Operating Conditions and Output Characteristics
Electrical Characteristics
Parameter
Symbol
—
Conditions
—
Min
70.0 MHz
45/55%
—
Typical
Max
165.0 MHz
55/45%
0.2 V
Frequency
—
—
—
—
—
—
Duty Cycle
Logic 0
—
@VDD/2
VOL
@600 µA
@600 µA
10-90% VO
Overtone
Logic 1
VOH
VDD -0.2 V
—
—
Rise & Fall Time
t , t
3.5 ns
3 psec
r f
Jitter, RMSꢁ2ꢂ
—
—
Tpz
—
—
—
—
—
1.3 V
—
—
100 ns
—
Enable Voltage
Disable Voltage
—
dF/F
—
—
-100 ppm
—
—
0.5 V
ꢀ100 ppm
Frequency Stabilityꢁ1ꢂ
Overall conditions including:
voltage, calibration, temp.,
10 yr aging, shock, vibration
General Characteristics
Parameter
Symbol
Conditions
Min
Typical
1.8 V
25 mA
—
Max
Supply Voltageꢁ3ꢂ
Supply Current
Output Current
Operating Temperature
Storage Temperature
Power Dissipation
Lead Temperature
Load
VDD
IDD
IO
—
1.71 V
0.0 mA
0.0 mA
1.89 V
40 mA
25.0 mA
No Load
Low Level Output Current
º
º
TA
TS
PD
TL
—
tS
—
—
—
0 C
—
70 C
º
º
-55 C
—
—
—
125 C
—
76 mW
º
Soldering, 10 sec.
—
300 C
—
—
—
—
—
—
15 pf
10 ms
Start-up Time
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 55 Hz to 2000 Hz
º
Soldering Condition 300 C for 10 seconds
Hermetic Seal
Leak rate less than 1 x 10-8 atm.cc/sec of helium
Footnotes:
1ꢂ Standard frequency stability ꢁ 20, 25, 50 ppm & others availableꢂ.
2ꢂ Jitter performance is frequency dependent. Please contact factory for full Wavecrest characterization.
RMS jitter bandwidth of 12kHz to 20MHz.
3ꢂ Internal high frequency power source decoupling.
Test Load
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