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