SA-A121B-FREQ [NEL]
TTL Compatible Enable/Disable; TTL兼容启用/禁用
| 型号： | SA-A121B-FREQ |
| 厂家： | 
NEL FREQUENCY CONTROLS,INC |
| 描述： | TTL Compatible Enable/Disable |
| 文件： | 总2页 (文件大小：298K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Data Sheet 8820B
CRYSTAL CLOCK OSCILLATORS
Rev. L
TTL Compatible Enable/Disable
HA-1210 Series
Description
The HA-1210 Series of quartz crystal oscillators provide enable/disable 3-state TTL compatible signals for
bus connected systems. Supplying Pin 1 of the HA-1210 units with a logic “1" enables the output on Pin 5.
In the disabled mode, Pin 5 presents a high impedance to the load. All units are resistance welded in an all
metal package, offering RFI shielding, and are designed to survive standard wave soldering operations
without damage. Insulated standoffs to enhance board cleaning are standard.
Features
• Wide frequency range– 0.5MHz to 36MHz
• User specified tolerance available
• Low Jitter
• High Q Crystal actively tuned oscillator circuit
• Will withstand vapor phase temperatures of 253°C • Power supply decoupling internal
for 4 minutes maximum
• Space-saving alternative to discrete component
oscillators
• High shock resistance, to 3000g
• All metal, resistance weld, hermetically sealed
package
• No internal PLL avoids cascading PLL problems
• Low power consumption
• Gold plated leads - Solder dipped leads available
upon request
• RoHS compliant, Lead Free Construction
(unless solder dipped leads are supplied)
Electrical Connection
Pin
Connection
1
4
5
8
Enable Input
Grd & Case
Output
VCC
Dimensions are in inches and (MM)
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 8820B
CRYSTAL CLOCK OSCILLATORS
Rev. L
HA-1210 Series Continued
TTL Compatible - Enable/Disable
Operating Conditions and Output Characteristics
Electrical Characteristics
Parameter
Frequency
Duty Cycle
Logic 0
Logic 1
Rise & Fall Time
Tpz
Symbol
-----
-----
VOL
VOH
tr,tf
-----
Conditions
-----
@ VCC/2
@ 16mA
@ 0.4mA
@ 0.4 to 2.4V
-----
Min
Typical
Max
0.5MHz
40/60%
-----
2.4V
-----
-----
-----
-----
-----
-----
-----
36.0MHz
60/40%
0.4V
-----
5 ns
-----
25 ns
Enable/Disable
Logic High Voltage
Enable/Disable
Logic Low Voltage
Jitter, RMS(2)
Frequency Stability (1)
1K internal pullup
to VCC
-----
2.4V
2.0V
-----
-----
-----
dF/F
-5.5mA IIL
-----
Overall conditions including:
voltage, calibration, temp.,
10 yr aging, shock, vibration
-----
-----
-100ppm
0.2V
-----
-----
0.4V
8 psec
+100ppm
General Characteristics
Parameter
Symbol
Conditions
-----
No Load
-----
-----
-----
-----
Soldering, 10 sec.
-----
<20MHz
Min
Typical
5.0V
-----
-----
-----
-----
-----
-----
-----
Max
5.5V
Supply Voltage
Supply Current
Output current
Operating temperature
Storage temperature
Power Dissipation
Lead temperature
Load
VCC
ICC
IO
TA
TS
PD
TL
4.5V
0.0 mA
0.0 mA
0°C
-55°C
-----
-----
-----
-----
55 mA
±16.0 mA
70°C
125°C
303 mW
300°C
10TTL gate
2 ms
----
tS
Start-up time
-----
20MHz or greater
-----
-----
10 ms
Environmental and Mechanical Characteristics
Mechanical Shock
Thermal Shock
Vibration
Soldering Condition
Hermetic Seal
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
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 characterization.
RMS jitter bandwidth of 12kHz to 20MHz.
Test Load:
Creating a Part Number
HA - X121X - FREQ
Package Code
Tolerance/Performance
0 ±100ppm 0-70°C
1 ±50ppm 0-70°C
HA Leaded 4 pin (8 pin)
SA Leaded 4 pin (8 pin) SMD
Gull Wing
7 ±25ppm 0-70°C
Input Voltage
Code Specification
9 Customer Specific
A ±20ppm 0-70°C
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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