Description
The SD-A3670 Series
of voltage controlled quartz crystal oscillators provide frequency control by applying a
voltage to Pin 1. This unit supplies DPECL compatible outputs which are enabled when Pin 2 is set to a logic
low or left open.
Features
· Wide Absolute Pull Range
· High Reliability - NEL HALT/HASS qualified for
crystal oscillator start-up conditions
· Low jitter - Wavecrest jitter characterization
available
· Wide frequency range--70.0 MHz to
200.0 MHz
· User specified tolerance available
· Will withstand vapor phase temperatures of 253°C
for 4 minutes maximum
· Space-saving alternative to discrete component
oscillators
· High shock resistance, to 1000g
· 3.3 Volt operation
· Metal lid electrically connected to ground to
reduce EMI
· 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
SD-A3670
Series
Size, mm
5 x 7
I/O
6 pad
Supply Voltage
3.3V
VCXO Series (PECL)
SD-A3670 Series
Rev H
Frequency Range: 70.0 MHz to 200.0 MHz
Creating a Part Number
SD - A367X - FREQ
Package Code
SD 6 pad 5x7 mm SMD
Input Voltage
Code
Specification
A
3.3 V
Tolerance/Performance
0 ±100 ppm 0-70°C
9 Customer Specific
C ±100 ppm -40 to +85°C
Drawing Specifications
Dimensions shown in inches and millimeters.
Electrical Connection
Pin
Connection
1
V
C O
2
Enable
3
V
EE
4
Output
5
Output Complement
6
V
CC
For the most up to date speci-
fications on each NEL prod-
uct, log on to our website--
www.nelfc.com
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
VCXO Series (PECL)
SD-A3670 Series
Rev H
Frequency Range: 70.0 MHz to 200.0 MHz
Operating Conditions and Output Characteristics
Electrical Characteristics
Parameter
Symbol
Conditions
Min
Typical
Max
Frequency
--
--
70.0 MHz
--
200.0 MHz
Duty Cycle
--
@V
O
/2
45/55%
--
55/45%
Logic 0
V
OL
--
V
CC
-1.810 V
DC
--
V
CC
-1.620 V
DC
Logic 1
V
OH
--
V
CC
-1.200 V
DC
--
V
CC
-0.880 V
DC
Rise & Fall Time
tr, tf
20-80% V
O
--
--
600 ps
Jitter, RMS
(1)
--
--
--
3 psec
--
Absolute Pull Range
APR
V
CO
=0.3 to 3.0V
±100ppm
--
--
V
CO
Input Impedance
--
50 na dc current max
100K ohm
--
--
V
CO
Linearity
--
V
CO
=0.3 to 3.0V
--
--
10%
Transfer Function
(2)
--
V
CO
=0.3 to 3.0V
--
Positive
--
General Characteristics
Parameter
Symbol
Conditions
Min
Typical
Max
Supply Voltage
V
CC
-V
EE
Nominal
3.135 V
3.3 V
3.465 V
Supply Current
I
CC
--
--
--
60 mA
Output Current
I
O
--
0.0 mA
--
±50.0 mA
Operating Temperature
T
A
--
0ºC
--
70ºC
Storage Temperature T
S
--
-55ºC
--
125ºC
Power Dissipation
P
D
--
--
--
208 mW
Lead Temperature
T
L
Soldering, 10 sec.
--
--
300ºC
Load 50 ohm to V
CC
-2 V or Thevenin Equivalent, Bias Required
--
--
--
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 55 Hz to 2000 Hz
Soldering Condition
300ºC for 10 seconds
Hermetic Seal
Leak rate less than 1 x 10
-8
atm.cc/sec of helium
Footnotes:
1) Jitter performance is frequency dependent. Please contact factory for full Wavecrest characterization.
RMS jitter bandwidth of 12kHz to 20MHz.
2) Frequency increase with increase in control voltage and is monotonic.
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