HIGH TEMPERATURE OSCILLATORS
High Temperature/High Shock
DESCRIPTION
CXOHT
300 kHz - 50 MHz
CXOMHT
300 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
200ºC with a total frequency stability of 200 parts-per-million
at this temperature. The CXOHT is offered in a 10.16 mm x
4.57 mm package. The CXOMHT oscillator is offered in a
6.50 mm x 5.00 mm package. The CXOXHT oscillator
features the smallest size of the three, and is offered in a
3.20 mm x 2.50 mm package.
FEATURES
20M
20M
Actual Size
Top View
Side View
1.
2.
3.
4.
Actual Size
Top View
Side View
Actual Size
Top View
Side View
PIN CONNECTIONS
High temperature operation up to 200
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
APPLICATIONS
Enable/Disable (E) or No Connection (N)
Ground
Output
V
DD
DIMENSIONS
CXOHT
MAXIMUM
DIM
A
B
C
(SM1)
D
E
F
CXOMHT
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
Industrial
Downhole instrumentation
Rotary shaft sensors
Underground boring tools
PACKAGE DIMENSIONS
CXOHT
3
2
E
C
(SM3/SM5)
0.063
CXOXHT
D
2
3
A
4
TOP
C
3
3
D
4
BOTTOM
2
A
TOP
3
BOTTOM
D
BOTTOM
A
TOP
E
1
4
D
1
B
2
2
1
4
B
1
C
1
F
4
B
C
E
SUGGESTED LAND PATTERN
CXOHT
0.275 (6.99)
0.067 (1.70)
CXOMHT
0.070 (1.78)
CXOXHT
0.141 (3.6)
0.065 (1.65)
0.130 (3.30)
0.070 (1.78)
0.060 (1.52)
0.201 (5.11)
0. 36 (3.45)
1
0.110 (2.9)
0.031 (0.8)
0.039 (1.05)
0.051
(1.3)
0.039
(1.0)
GRID
PLACEMENT
COURTYARD
0.140 (3.56) 0.135 (3.43)
inches (mm)
inches (mm)
0.137 (3.48)
GRID
PLACEMENT
COURTYARD
inches (mm)
10180 - Rev A
SPECIFICATIONS
ABSOLUTE MAXIMUM RATINGS
Specifications are typical at 25
O
C unless otherwise noted.
Specifications are subject to change without notice. Tighter
specifications available. Please contact factory.
Supply Voltage
1
Calibration Tolerance
Frequency Stability
Over Temperature
Total Tolerance
2
Supply Current (Typical)
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
± 200 ppm for 25
O
C to 200
O
C
3.3 V
3.0 mA
5.0 mA
6.0 mA
23.0 mA
5.0 V
8.0 mA
10.0 mA
14.0 mA
39.0 mA
Supply Voltage V
DD
Storage Temperature
Maximum Process Temperature
-0.3 V to 7.0 V
-55
O
C to 125
O
C
260
O
C, 20 seconds
ENABLE/DISABLE OPTIONS (E/T/N)
24 MHz
32 MHz
50 MHz
120 MHz
Output Load (CMOS)
15 pF
Start-up Time
5 ms MAX
Rise/Fall Time
6 ns MAX
Duty Cycle
40% MIN, 60% MAX
Aging, first year
10 ppm MAX at 25
O
C
Aging, 1,000 Hrs
100 ppm MAX at 200
O
C
Shock, survival
3
Std: 3,000 g, 0.3 ms,
1
/
2
sine
HG: 10,000 g, 0.3 ms,
1
/
2
sine
20 g, 10-2,000 Hz swept sine
Vibration, survival
4
Operating Temp Range -55
O
C up to 200
O
C
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
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
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. Total Tolerance = Calibration Tolerance + Frequency Stability over temperature.
3. For non-high-shock CXOHT and CXOMHT oscillators only. The specification for
CXOXHT oscillators is 5,000 g, 0.3 ms, 1
/
2 sine.
4. 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.
Oscillator
Current consumption
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
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
25
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)
Distribution:
RSG Electronic Components GmbH Sprendlinger Landstr. 115 D-63069 Offenbach/Germany
Tel. +49 69 984047-0 Fax +49 69 984047-77 info@rsg-electronic.de
www.rsg-electronic.de
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Änderungen vorbehalten / subject to change without notice
Embedded System
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