PJ-A2987-150.0 [NEL]

CRYSTAL CLOCK OSCILLATORS Differential Positive ECL (DPECL) Fast Edge; 晶体时钟振荡器差分正ECL （ DPECL ）快速边沿


型号：	PJ-A2987-150.0
厂家：	NEL FREQUENCY CONTROLS,INC
描述：	CRYSTAL CLOCK OSCILLATORS Differential Positive ECL (DPECL) Fast Edge 晶体时钟振荡器差分正ECL （ DPECL ）快速边沿振荡器晶体时钟
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Data Sheet 0350C

CRYSTAL CLOCK OSCILLATORS

Rev. G

Differential Positive ECL (DPECL)

Fast Edge

PJ-B2980 Series

Description

The PJ-B2980 Series of quartz crystal oscillators provide DPECL Fast Edge compatible signals. Systems

designers may now specify space-saving, cost-effective packaged PECL oscillators to meet their timing

requirements.

Features

• Wide frequency range–60.0MHz to 312.5MHz

• User specified tolerance available

• Space-saving alternative to discrete component

oscillators

• High Reliability - NEL HALT/HASS qualified for

crystal oscillator start-up conditions

• Low Jitter - Wavecrest jitter characterization

available

• High shock resistance, to 1000g

• 2.5 volt operation

• Metal lid electrically connected to ground to

reduce EMI

• Overtone technology

• High Q Crystal actively tuned oscillator circuit

• Power supply decoupling internal

• No internal PLL avoids cascading PLL problems

• High frequencies due to proprietary design

• Gold plated pads

• RoHS Compliant, Lead Free Construction

Electrical Connection

Connection

Enable/Disable

N.C.

V_EE/Ground

Output

/Output

V_CC

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 0350C

CRYSTAL CLOCK OSCILLATORS

Rev. G

PJ-B2980 Series Continued

Differential Positive ECL (DPECL) Fast Edge

Operating Conditions and Output Characteristics

Electrical Characteristics

Parameter

Frequency

Duty Cycle

Logic 0 ⁽²⁾

Symbol

-----

V_OL

V_OH

Conditions

-----

@ V_CC-1.29V

-----

Min

Typical

Max

60.0MHz

45/55%

-----

312.5MHz

55/45%

V_CC-1.62V

-----

Logic 1⁽²⁾

-----

V_CC-1.025V

Rise & Fall Time

tr,tf 20-80%V_Owith 50 ohm load to V_CC-2V -----

1 ns

(4)

T_pd

-----

dF/F

-----

with V_EE= 0V

-200 psec

-----

1.6V

-----

-100ppm

+200 psec

1 psec

-----

0.4V

+100ppm

Jitter, RMS⁽³⁾

Enable Voltage⁽⁵⁾

Disable Voltage

Frequency Stability ⁽¹⁾

Overall conditions including:

voltage, calibration, temp.,

10 yr aging, shock, vibration

General Characteristics

Parameter

Supply Voltage

Supply Current

Symbol

V_CC

I_CC

Conditions

-----

50 ohm termination

To 2.00V below V_CC

Min

2.375V

0.0 mA

Typical

2.5V

-----

Max

2.625V

80 mA

Output current

I_O

Low level Output Current 0.0 mA

-----

±50.0 mA

70°C

125°C

210 mW

253°C

Operating temperature

Storage temperature

Power Dissipation

Solder temperature

Load

T_A

T_S

P_D

T_L

------

-----

0°C

-55°C

-----

4 minutes

-----

50 Ohm to V_CC-2V or Thevenin Equivalent, Bias Required

t_S----- -----

Start-up time

2 ms

10 ms

Environmental and Mechanical Characteristics

Mechanical Shock

Thermal Shock

Vibration

Hermetic Seal

Footnotes:

Per MIL-STD-202, Method 213, Condition E

Per MIL-STD-883, Method 1011, Condition A

0.060" double amplitude 10 Hz to 55 Hz, 35g’s 55Hz to 2000 Hz

Leak rate less than 1 x 10 ^-8atm.cc/sec of helium

1) Standard frequency stability (±20,±25,±50ppm & others available)

2) V_OL, V_OH, referenced to ground (V_EE) with V_CC= 2.5V

3) Jitter performance is frequency dependent. Please contact factory for full Wavecrest characterization.

RMS jitter bandwidth of 12kHz to 20MHz.

4) Tpd is phse shift between the falling edge of pin 4 at 2.0V and the rising edge of pin 5 at 2.01V.

5) Open to enable pin also enables the output.

6) Internal high frequency power source decoupling.

Creating a Part Number

PJ - B298X - FREQ

Package Code

PJ 6 J Lead SMD

Tolerance/Performance

0 ±100ppm 0-70°C

1 ±50ppm 0-70°C

7 ±25ppm 0-70°C

Input Voltage

Code Specification

9 Customer Specific

A ±20ppm 0-70°C

3.3V

2.5V

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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