HIGH TEMPERATURE OSCILLATORS
High Temperature/High Shock
DESCRIPTION
CXOHT
320 kHz - 50 MHz
CXOMHT
320 kHz - 50 MHz
CXOXHT
1 MHz - 50 MHz
An increasing number of applications require the use of high-
temperature oscillators. For these applications, Statek offers
the CXOHT, CXOMHT, and CXOXHT oscillators. These
oscillators are designed to operate at temperatures up to
225ºC with high shock survivability.
FEATURES
High temperature operation up to 225
O
C
Excellent stability over temperature
Fast start-up
High shock resistance
CMOS and TTL compatible
Optional output enable/disable
Low EMI emission
Hermetically sealed ceramic package
PIN CONNECTIONS
1.
2.
3.
4.
Enable/Disable (E or T) or No Connection (N)
Ground
Output
V
DD
DIMENSIONS
CXOHT
MAXIMUM
DIM
A
B
C
(SM1)
D
E
F
inches
0.190
0.055
0.350
0.135
0.060
mm
4.83
1.40
1.60
8.89
3.43
1.52
0.405 10.29
CXOMHT
MAXIMUM
inches
0.263
0.204
0.055
0.063
0.065
0.070
mm
6.68
5.18
1.40
1.60
1.65
1.78
CXOXHT
MAXIMUM
inches
0.136
0.107
0.043
0.048
0.041
0.031
mm
3.40
2.70
1.09
1.21
1.10
0.85
APPLICATIONS
Industrial
Downhole instrumentation
Rotary shaft sensors
Underground boring tools
PACKAGE DIMENSIONS
CXOHT
CXOMHT
C
(SM3/SM5)
0.063
CXOXHT
SUGGESTED LAND PATTERN
CXOHT
CXOMHT
CXOXHT
10180 - Rev C
STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256
www.statek.com
SPECIFICATIONS
ABSOLUTE MAXIMUM RATINGS
O
Specifications are typical at 25 C unless otherwise noted.
Specifications are subject to change without notice. Tighter
specifications available. Please contact factory.
Supply Voltage
1, 2
Calibration Tolerance
Frequency Stability
Over Temperature
3.3 V ± 10%
5.0 V ± 10%
± 50 ppm, or tighter as required
± 100 ppm for 25
O
C to 150
O
C
± 150 ppm for 25
O
C to 175
O
C
± 175 ppm for 25
O
C to 200
O
C
± 250 ppm for 25
O
C to 225
O
C
± 200 ppm for 25
O
C to 200
O
C
± 300 ppm for 25
O
C to 225
O
C
3.3 V
5.0 V
24 MHz
3.0 mA
8.0 mA
32 MHz
5.0 mA
10.0 mA
50 MHz
6.0 mA
14.0 mA
Supply Voltage V
DD
Storage Temperature
Maximum Process Temperature
-0.5 V to 7.0 V
-55
O
C to 125
O
C
260
O
C, 20 seconds
ENABLE/DISABLE OPTIONS (E/T/N)
Total Tolerance
3
Supply Current (Typical)
Statek offers three enable/disable options: E, T, and N.
Both the E-version and T-version have Tri-State outputs and
differ in whether the oscillator continues to run internally
when the output is put into the high Z state: it stops in the
E-version and continues to run in the T-version. So, the E-
version offers very low current consumption when the
oscillator is disabled and the T-version offers very fast output
recovery when the oscillator is re-enabled. The N-version
does not have PIN 1 connected internally and so has no
enable/disable capability. The following table summarizes
the three options.
COMPARISON OF
ENABLE/DISABLE OPTIONS E AND T
Output Load (CMOS)
Start-up Time
Rise/Fall Time
Duty Cycle*
Aging, first year
Aging
Shock, survival
4
15 pF
5 ms MAX
10 ns MAX
40% MIN, 60% MAX
5 ppm MAX at 25
O
C
100 ppm MAX at 200
O
C
Std: 3,000 g, 0.3 ms,
1
/
2
sine
HG: 10,000 g, 0.3 ms,
1
/
2
sine
Vibration, survival
5
20 g, 10-2,000 Hz swept sine
Operating Temp Range -55
O
C up to 225
O
C
E
T
When enabled (PIN 1 is high*)
Output
Oscillator
Current consumption
Freq. output
Oscillates
Normal
Freq. output
Oscillates
Normal
When disabled (PIN 1 is low)
Output
Oscillator
Current consumption
High Z state
Stops
Very low
High Z state
Oscillates
Lower than normal
1. All frequencies, voltages, temperature ranges and enable/disable options may not be
available. Contact factory.
2. 225
O
C only available at 3.3V.
3. Total Tolerance = Calibration Tolerance + Frequency Stability over temperature.
4. For CXOHT and CXOMHT oscillators only. The specification for std. CXOXHT
oscillators is 5,000 g and for CXOXHTHG it is 10,000 g.
5. Per MIL-STD-202G, Method 204D, Condition D. Random vibration testing available.
Note: All parameters are measured at ambient temperature with a 10 M!, 15 pF load.
*Tighter duty cycle available. Contact factory.
When re-enabled (PIN 1 changes from low to high)
Output recovery
Delayed
Immediate
PACKAGING OPTIONS
*
When PIN 1 is allowed to float, it is held high by an internal pull-up resistor.
CXOHT, CXOMHT, CXOXHT - Tray Pack
- 16 mm tape, 7” or 13” reels
Per EIA 481 (see Tape and Reel data sheet # 10109)
HOW TO ORDER CXOHT, CXOMHT and CXOXHT OSCILLATORS
CXOMHT
CXOHT
CXOMHT
CXOXHT
Supply Voltage
4 = 3.3 V
5 = 5.0 V*
* 200
O
C Max. @ 5V
4
S
“S” if special or
custom design.
Blank if Std.
E
Enable/Disable
Option E or T
or N
SM3
Terminations
Blank = SM1
= Gold Plated
SM3 = Solder Dipped
SM5 = Solder Dipped
(Lead Free)
20.0M,
Frequency
M = MHz
K = kHz
Calibration
Tolerance
@ 25
0
C
(in ppm)
/
/ 200
Total Frequency
Tolerance (in
ppm)
/
H
Temp. Range:
H = 25
0
C to 200
0
C
S = Customer
Specified Temp.
Range
HG = High Shock
otherwise leave
blank.
OR
50
Calibration
Tolerance
@ 25
0
C
(in ppm)
Frequency
Stability over
Temp. Range
(in ppm)
/
175
/
Total
Frequency
Tolerance
(in ppm)
/
H
Temp. Range:
H = 25
0
C to
200
0
C
S = Customer
Specified Temp.
Range
Frequency
Stability over
Temp. Range
(in ppm)
10180 - Rev C
STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256
www.statek.com
