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
Differential Positive ECL (DPECL)
HK-A2900 Series
Description
The HK-A2900 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 range320.0MHz to 550.0MHz
· 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 - Wavecrest jitter characterization
available
· High Reliability - NEL HALT/HASS qualified for
crystal oscillator start-up conditions
· 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
Electrical Connection
Pin Connection
1 V
CC
2 V
EE
Case
6 V
EE
Case
7 Output
8 /Output
9 V
EE
Case
13 V
EE
Case
14 Enable/Disable
CRYSTAL CLOCK OSCILLATORS
Data Sheet 0317A
Rev. -
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
HK-A2900 Series Continued
Differential Positive ECL (DPECL)
Operating Conditions and Output Characteristics
Electrical Characteristics
Parameter
Symbol
Conditions
Min
Typical
Max
Frequency
-----
-----
320.0MHz -----
550.0MHz
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)
-----
-----
-----
-----
3 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
-----
3.135V 3.3V
3.465V
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
Hermetic Seal
Leak rate less than 1 x 10
-8
atm.cc/sec of helium
Footnotes:
1) Standard frequency stability (±20,±25,±50ppm & others available)
2) V
OL
, V
OH
, referenced to ground
3) Jitter performance is frequency dependent. Please contact factory for full Wavecrest characterization.
4) Open to Enable pin also enables the output.
Rev. -
CRYSTAL CLOCK OSCILLATORS
HK - A290X - FREQ
Package Code
Tolerance/Performance
HK Leaded 8 pin (14pin)
0 ±100ppm 0-70°C
SK 8 pin (14 pin) SMD Gull
1 ±50ppm 0-70°C
Wing
7 ±25ppm 0-70°C
Input Voltage
9 Customer Specific
Code Specification
A ±20ppm 0-70°C
A 3.3V
B ±50ppm -40 to +85°C
5V
C ±100ppm -40 to +85°C
Creating a Part Number
Data Sheet 0317A
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