CRYSTAL CLOCK OSCILLATORS
Frequency Selectable Differential Sine Wave
Data Sheet 0549B
Rev. B
SY-A6A70 Series
Description
The
SY-A6A70 Series
of quartz crystal oscillators provides a Frequency Selectable Differential Sine Wave
signal. The oscillator frequency is set by the voltage applied to the frequency select pin. The two selectable
frequencies can be any discrete frequency selected within the range listed below. This device is to operate
using positive voltage and uses multiple ground pins for improved signal integrity.
Features
• Wide frequency range - 250MHz to 1.7GHz
• User specified tolerance from ±20ppm
• Will withstand SMD reflow temperatures of 183°C
for 4 minutes maximum
• High shock resistance, to 1000g
• Low Jitter
Wavecrest jitter characterization available
• Low Phase Noise of -135dB
Phase Noise characterization available
Electrical Connection
Pin
Connection
• 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
• Cover connected to ground
• No internal PLL avoids cascading PLL problems
• High frequencies due to proprietary design
1
2
3
4
5
6
7
8
V
CC
Ground
NC or Ground
Q Output
/Q Output
Ground
Frequency
Select
Enable
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
SY-A6A70 Series
Continued
Frequency Selectable Differential Sine Wave
Operating Conditions and Output Characteristics
Electrical Characteristics
Parameter
Frequency1
Frequency2
Harmonic Spurious
Nonharmonic Spurious
Output Voltage
Jitter, RMS
(1)
Enable Voltage
Disable Voltage
Freq1 Select Voltage
Freq2 Select Voltage
Frequency Stability
Phase Noise
Symbol
Conditions
-----
-----
-----
-----
-----
-----
-----
-----
V
P-P
-----
-----
-----
----
-----
-----
-----
-----
-----
-----
-----
dF/F
Overall conditions including:
voltage, calibration, temp.,
10 yr aging, shock, vibration
-----
@10kHz
-----
@100kHz
-----
@1MHz
-----
@10MHz
Min
250.0MHz
250.0MHz
-----
-----
0.60V
-----
0.7V
CC
-----
0.7V
CC
-----
-100ppm
-----
-----
-----
-----
Data Sheet 0549B
Rev. B
Typical
-----
-----
-25dBc
-----
0.85V
0.3 psec
-----
-----
-----
-----
-----
-----
-----
-----
-----
Max
1.7GHz
1.7GHz
-20dBc
-60dBc
-----
0.5 psec
-----
0.3V
CC
-----
0.3V
CC
+100ppm
-130 dBc/Hz
-130 dBc/Hz
-135 dBc/Hz
-135 dBc/Hz
General Characteristics
Parameter
Supply Voltage
Supply Current
Output current
Operating temperature
Storage temperature
Lead temperature
Load
(2)
Start-up time
Symbol
Conditions
V
CC
3.3V±5%
I
CC
50 ohm termination
I
O
Low level Output Current
------
T
A
-----
T
S
T
L
Soldering, 10 sec.
50 Ohm termination
-----
t
S
Min
3.135V
0.0 mA
0.0 mA
-40°C
-55°C
-----
-----
Typical
3.3V
85mA
-----
-----
-----
-----
2 ms
Max
3.465V
100 mA
±50.0 mA
85°C
125°C
300°C
10 ms
Environmental and Mechanical Characteristics
Mechanical Shock
Thermal Shock
Vibration
Soldering Condition
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
Footnotes:
1) Jitter performance is frequency dependent. Please contact factory for full Aeroflex characterization.
RMS jitter bandwidth of 12kHz to 20MHz.
2) Internally AC coupled output
Creating a Part Number
SY - A6A7X - FREQ
Package Code
SY 8 pad 14x17mm SMD
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
Input Voltage
Code Specification
A
3.3V
B
2.5V
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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