HK-2911中文资料

357 Beloit Street, P.O. Box 457, Burlington, WI 53105-0457 U.S.A. Phone 262/763-3591 FAX 262/763-2881

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Differential Positive ECL (DPECL)

SK-2910 Series

Description

The SK-2910 Series of quartz crystal oscillators provide DPECL Fast Edge compatible signals. This device is to operate using positive voltage and uses multiple ground pins for improved signal integrity. This device is intended to operate on positive voltage for PECL applications.

Features

? Wide frequency range–122.0MHz to 300.0MHz ? User specified tolerance available ? Case at electrical ground

? Will withstand vapor phase temperatures of 253°C for 4 minutes maximum

? All metal, resistance weld, hermetically sealed package

? High shock resistance, to 1500g ? Low Jitter

? Overtone technology

? High Q Crystal actively tuned oscillator circuit ? Power supply decoupling internal ? Dual ground plane for added stability

? No internal PLL avoids cascading PLL problems ? High frequencies due to proprietary design

CRYSTAL CLOCK OSCILLATORS

Data Sheet 0012G

Rev. C

SK-2910 Series Continued

Differential Positive ECL (DPECL)

Operating Conditions and Output Characteristics

Electrical Characteristics

Parameter Symbol Conditions Min Typical Max

Frequency

----------122.0MHz -----300.0MHz Duty Cycle ----- @ 50% points 45/55% -----55/45%Logic 0 (2)V OL ----- V CC -1.95V -----V CC -1.60V Logic 1(2)

V OH ----- V CC -1.02V -----

V CC -0.74V Rise & Fall Time tr,tf 20-80%V O with 50 ohm load to V CC -2V ----- 350 psec 600 psec Jitter, RMS (3)

-------------------- 5 psec Enable Voltage (4) ----with V EE =0V 0V ----- 1.0V Disable Voltage

-----with V EE =0V 3.0V -----V CC

Frequency Stability (1)

dF/F Overall conditions including:-100ppm -----+100ppm

voltage, calibration, temp.,

10 yr aging, shock, vibration

General Characteristics

Parameter

Symbol

Conditions

Min Typical Max Supply Voltage V CC ----- 4.75V 5.0V 5.25V Supply Current

I CC

50 ohm termination 0.0 mA -----120 mA To 2.00V below V CC

Output current I O Low level Output Current 0.0 mA

-----±50.0 mA Operating temperature T A

------ 0°C -----70°C Storage temperature T S -----

-55°C -----125°C Input: Logic High (ECL) - Disables V EE or Open - Enables Lead temperature T L Soldering, 10 sec. ----- -----300°C Load 50 Ohm to V CC -2V or Thevenin Equivalent, Bias Required Start-up time t S ----------

2 ms

10 ms

Environmental and Mechanical Characteristics

Mechanical Shock Per MIL-STD-202, Method 213, Condition E Thermal Shock Per MIL-STD-833, Method 1011, Condition A

Vibration

0.060" double amplitude 10 Hz to 55 Hz, 35g’s 55Hz to 2000 Hz Soldering Condition 300°C for 10 seconds

Rev. C

CRYSTAL CLOCK OSCILLATORS

Data Sheet 0012G