SD-A2980 Datasheet, PDF(3/13 Page) Nel Frequency Controls,inc – Differential Positive ECL (DPECL 3.3V)

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SD-A2980 Datasheet, PDF (3/13 Pages) Nel Frequency Controls,inc – Differential Positive ECL (DPECL 3.3V)

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Differential Positive ECL (DPECL 3.3V)

SD-A2980 Series

Frequency Range: 80.0-540.0 MHz

Operating Conditions and Output Characteristics

Electrical Characteristics

Parameter

Symbol

Conditions

Min

Frequency

80.0 MHz

Duty Cycle

Logic 0(2)

Logic 1(2)

Rise & Fall Time

Jitter, RMS(3)

Enable Voltage(5)

Disable Voltage

Frequency Stability(1)

VOL

VOH

trâ, tf

dF/F

@VCC -1.29 V

45/55%

1.35 V

2.28 V

20-80% VO, with 50 ohm load to VCC -2V â

with VEE = 0V

2.0 V

with VEE = 0V

Overall conditions including:

-100 ppm

voltage, calibration, temp.,

10 yr aging, shock, vibration

Typical

Max

540.0 MHz

55/45%

1.70 V

2.56 V

1 nsec

3 psec

0.8 V

+100 ppm

General Characteristics

Parameter

Symbol

Conditions

Min

Supply Voltage

Supply Current

Output Current

Operating Temperature

Storage Temperature

Power Dissipation

Lead Temperature

Load

Start-up Time

VCC

3.15 V

ICC 50 ohm termination to 2.00 V below VCC 0.0 mA

Low level Output Current

0.0 mA

0ÂºC

-55ÂºC

Soldering, 10 sec.

50 ohm to VCC -2V or Thevenin Equivalent, Bias Required

Typical

3.3 V

2 ms

Max

3.45 V

80 mA

Â±50.0 mA

70ÂºC

125ÂºC

276 mW

300ÂºC

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, 35gâs 55 Hz to 2000 Hz

300ÂºC for 10 seconds

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

Footnotes:

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

2) VOL, VOH, referenced to ground (VEE) with VCC = 3.3 V.

3) Jitter performance is frequency dependent. Please contact factory for full Wavecrest characterization. RMS jitter bandwidth of

12 kHz to 20 MHz.

5) Open to enable pin also enables the output.

Test Circuit

Test Circuit uses a split supply of

+2V and -1.3V for ease of testing.

For the most up to date spec-

ifications on each NEL prod-

uct, log on to our websiteâ

www.nelfc.com

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