Data Sheet

EURO QUARTZ
CXO OSCILLATORS
Low Profile Miniature SMD Crystal Oscillator
300kHz to 170MHz
FEATURES
Frequency Range 300kHz to 170MHz
Supply voltage from 0.9V to 5.0Volts available
Full 'MIL' testing available
High shock resistance
Low EMI emission
Low power consumption
CMOS/TTL compatible output
Hermetically sealed ceramic package
Wire bond pads for hybrids
OUTLINE & DIMENSIONS
DESCRIPTION
CXO oscillators consist of a miniature quartz crystal and a CMOS/TTL
compatible hybrid circuit in a low-profile, small footprint ceramic
package. In addition to the conventional solder or epoxy electrical
connection techniques, the CXO oscillator's bond pads on the topside
of the unit allow it to be connected electrically in a hybrid assembly
using wire bonds.
SPECIFICATION
Specifications are typical at 25°C unless otherwise indicated. Tighter
specifications are available, contact Euroquartz technical sales.
Supply Voltage
300kHz to 120MHz:
+5.0 Volts
300kHz to 170MHz:
+3.3 Volts
(Supply voltages 0.9V, 1.8V and 2.5V are also available)
Calibration Tolerance:
±100ppm
Frequency Stability
over Operating Temperature Range
Commercial (0° ~ +70°C): ±50ppm
Industrial(-40° ~ +85°C):
±100ppm
Military (-55° ~ +125°C):
±100ppm
Supply Current:
See table below
Load:
CMOS 15pF
(Higher loads available)
Rise and Fall Time:
6ns maximum
Start-up Time:
5ms maximum
Ageing:
10ppm max., first year.
Shock Survival:
3000g, 0.3ms, ½ sine*
Vibration Survival;
20g, 10~2000Hz swept sine**
Maximum Process Temperature:
260°C for 20 seconds
* Higher shock version available, see CXOHG.
** Per MIL-STD-202G, Method 204D, Condition D. Random vibration
testing also available.
PACKAGING OPTIONS
CXO oscillators are available either tray packed (<250pcs) or tape
and reel (>250 pieces).
16mm tape, 178mm or 330mm reels (EIA 418).
HOW TO ORDER CXO SMD CRYSTAL OSCILLATORS
Example:
CURRENT CONSUMPTION
Frequency
Supply Current Supply Current
Vdd = 5.0V
Vdd = 3.3V
10MHz
24MHz
30MHz
40MHz
50MHz
2mA
4mA
6mA
8mA
10mA
4mA
8mA
10mA
12mA
12mA
COMPARISON OF ENABLE/DISABLE OPTIONS
When enabled (PIN 1 is high'*)
Output
Oscillator
Current Consumption:
When disabled (PIN 1 'low')
Output
Oscillator
Current Consumption:
When re-enabled
(PIN 1 from low to high)
Output recovery
Option 'E'
Option 'T'
Freq. Output
Oscillates
Normal
Freq. Output
Oscillates
Normal
High 'Z' state
Stops
Very low
High 'Z' state
Oscillates
Lower than normal
Delayed
Immediate
* When Pin 1 is allowed to float it is held 'high' by an internal pull-up
resistor.
Option 'N' = Pin 1 not connected internally.
CXO-S-T-SM3-32.0M, 100/100/–/I
CXO - S
-
S' if special,
custom design or
if the voltage is
not 5.0 Volts.
Otherwise leave
blank
T
Enable/Disable
option, E, T or N
-
SM3
-
Terminations
Blank = SM1
=Gold plated
SM3 = Solder dipped
SM5 = Solder dipped
Lead Fee
32.0M,
100
Frequency
K = kHz
M = MHz
Calibration
Tolerance
at 25°C
/ 100
Frequency
Stability over
Temp. Range
(in ppm)
/ – /
I
Temp. Range
C = -10° ~ +70°C
I = -40° ~ +85°C
M = -55° ~ +125°C
S = Customer specified
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 [email protected] www.euroquartz.co.uk
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