CRYSTAL CLOCK OSCILLATORS
Differential Positive ECL (DPECL)
Data Sheet 0541F
Rev. B
SU-A29F0 Series
Description
The
SU-A29F0 Series
of quartz crystal oscillators provide DPECL compatible signals. Systems designers
may now specify space-saving, cost-effective packaged PECL oscillators to meet their timing requirements.
Features
• Wide frequency range – 280.0+MHz to 350.0MHz
• User specified tolerance available
• Will withstand SMD reflow temperatures of 253°C
for 4 minutes maximum
• Space-saving alternative to discrete component
oscillators
• High shock resistance, to 1000g
• 3.3 volt operation
• High Reliability - NEL HALT/HASS qualified for
crystal oscillator start-up conditions
Electrical Connection
Pin
1
2
3
4
5
6
Connection
Enable
N/C
Ground
Q Output
/Q Output
V
CC
• Wavecrest jitter characterization available
• Overtone technology
• High Q Crystal actively tuned oscillator circuit
• No internal PLL avoids cascading PLL problems
• Power supply decoupling internal
• Metal lid electrically connected to ground to
reduce EMI
• Gold plated pads
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
CRYSTAL CLOCK OSCILLATORS
SU-A29F0 Series
Continued
Differential Positive ECL (DPECL)
Operating Conditions and Output Characteristics
Parameter
Frequency
Duty Cycle
Logic 0
(2)(7)
Logic 1
(2)(7)
Rise & Fall Time
T
pd(6)
Jitter, RMS
(3)
Enable Voltage
(5)
Disable Voltage
Frequency Stability
(1)
Data Sheet 0541F
Rev. B
Electrical Characteristics
Symbol
Conditions
Min
-----
-----
280.0+MHz
-----
@ V
CC
-1.29V
45/55%
V
OL
-----
-----
V
OH
-----
V
CC
-1.025V
tr,tf 20-80%V
O
with 50 ohm load to V
CC
-2V -----
-----
-----
-200psec
-----
-----
-----
-----
with V
EE
= 0V
2.0V
-----
with V
EE
= 0V
-----
dF/F
Overall conditions including:
-100ppm
voltage, calibration, temp.,
10 yr aging, shock, vibration
Conditions
Min
3.3V±5%
3.135V
50 ohm termination
0.0 mA
To 2.00V below V
CC
I
O
Low level Output Current 0.0 mA
T
A
------
0°C
-----
-55°C
T
S
P
D
-----
-----
T
L
Soldering, 10 sec.
-----
50 Ohm to V
CC
-2V or Thevenin Equivalent, Bias Required
t
S
-----
-----
Symbol
V
CC
I
CC
Typical
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
Max
350.0MHz
55/45%
V
CC
-1.62V
-----
500ps
+200psec
1 ps
-----
0.8V
+100ppm
Parameter
Supply Voltage
(4)
Supply Current
General Characteristics
Typical
3.3V
-----
-----
-----
-----
-----
-----
2 ms
Max
3.465V
105 mA
±50.0 mA
70°C
125°C
364 mW
300°C
10 ms
Output current
Operating temperature
Storage temperature
Power Dissipation
Lead temperature
Load
(7)
Start-up time
Mechanical Shock
Thermal Shock
Vibration
Soldering Condition
Hermetic Seal
Environmental and Mechanical Characteristics
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) V
OL
, V
OH
, referenced to ground (V
EE
) with V
CC
= 3.3V
3) Jitter performance is frequency dependent. Please contact factory for full Wavecrest characterization.
RMS jitter bandwidth of 12kHz to 20MHz.
4) Internal high frequency power source decoupling.
5) Open to enable pin also enables the output.
6)
Tpd is phase shift between the falling edge of pin 4 at 2.0V and the rising edge of pin 5 at 2.01V.
7) Logic levels are dependant on specified load of 50 ohms to V
CC
-2 volts.
Creating a Part Number
SU - A29FX - FREQ
Package Code
SU 6 pad 9x14mm SMD
Input Voltage
Code Specification
A
3.3V
B
2.5V
Tolerance/Performance
0 ±100ppm 0-70°C
1 ±50ppm 0-70°C
7 ±25ppm 0-70°C
9 Customer Specific
A ±20ppm 0-70°C
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
PCB Design
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