QUARTZ
EURO
HIGH TEMPERATURE OSCILLATORS
High Temperature/High Shock SMD Crystal Oscillator
CXOHT
CXOMHT
CXOXHT
FEATURES
High temperature operation up to 200°C
Excellent temperature stability
Fast start-up
High shock resistance
Low EMI emission
300kHz ~ 50MHz
1MHz ~ 50MHz
Hermetically sealed package
300kHz ~ 50MHz
OUTLINE & DIMENSIONS
DESCRIPTION
For applications with high operating temperatures oscillators types
CXOHT, CXOMHT and CXOXHT will operate at temperatures as high
as 200°C with a stability of 200ppm at this temperature.
SPECIFICATION
Specifications are typical at 25°C unless otherwise indicated. Tighter
specifications are available, contact Euroquartz technical sales.
Supply Voltage:
Calibration Tolerance:
Frequency Stability
+3.3 or +5.0 Volts ±10%
±50ppm or tighter as reqd.
25° ~ +150°C: ±100ppm
25° ~ +175°C: ±150ppm
25° ~ +200°C: ±200ppm
Supply Current (Typical)
+3.3V
3.0mA
5.0mA
6.0mA
+5.0V
24MHz:
32MHz:
50MHz:
15pF
8.0mA
10.0mA
14.0mA
Output Load:
Start-up Time:
5ms maximum
6ns maximum
60/40%
Rise and Fall Time:
Duty Cycle:
Shock Survival
Std:
HG:
Up to 3,000g, 0.3ms, ½ sine
Up to 10,000g, 0.3ms, ½ sine
20g, 10~2000Hz swept sine
-55°C to 200°C
Vibration Survival:
Operating Temp. Range:
COMPARISON OF ENABLE/DISABLE OPTIONS
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
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
Delayed
Immediate
PACKAGING OPTIONS
* When Pin 1 is allowed to float it is held 'high' by an internal pull-up
resistor.
High temperature oscillators are available either tray packed
(<250pcs) or tape and reel (>250 pieces).
Option 'N' = Pin 1 not connected internally.
16mm tape, 178mm or 330mm reels (EIA 418).
HOW TO ORDER HIGH TEMPERATURE OSCILLATORS
CXOHT
3
S
HG
E
SM3 - 20.0M,
– /
–
/ 200
/ H
Terminations
Blank = SM1
=Gold plated
SM3 = Solder dipped
SM5 = Solder dipped
(SM1 and SM5 are pB free)
Temp. Range
H = 25° to 200°C
S = customer
specified temp.
range
Enable/Disable
option, E, T or N
Frequency
K = kHz
M = MHz
Package Type
CXOHT
CXOMHT
CXOXHT
Supply Voltage Blank
Calibration
Tolerance
at 25°C
Frequency
Stability
over
temperature
range
Total
4 = 3.3V
5 = 5.0V
= standard
Frequency
Tolerance
(±ppm)
S = special
or custom
Shock Level
Blank =
standard
HG =
(±ppm)
high shock
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