SCOCXOVT
FREQUENCY STABILITY
OVER:
OPERATING TEMP. RANGE :
LONG TERM AGING 1ST YEAR:
10 YEARS:
SUPPLY VOLTAGE
±
0.5 V
≤
20 MHz
> 20 MHz
LOAD
±
10%:
see note 1
<
±
0.3 ppm
*
<
±
2.5 ppm
*
<
±
0.025 ppm
<
±
0.1 ppm
<
±
0.01 ppm
Ultra Tight Stability
Tight Stability
up to 54 MHz
Oven Controlled Crystal Oscillator
5 V Power Supply
NOTE 1
TEMP. RANGE *
STABILITY *
SCOCXOVT-AR1, AV5
0 to +60 °
C
±
0.025 ppm
(0.05 ppm peak to peak)
SCOCXOVT-BR1, BV5
-20 to +70 °
C
±
0.05 ppm
(0.1 ppm peak to peak)
SCOCXOVT-CR1, CV5
-40 to +85 °
C
±
0.1 ppm
(0.2 ppm peak to peak)
TEMP. RANGE *
STABILITY *
POWER SUPPLY
SUPPLY INPUT:
INPUT CURRENT :
Vcc = 5 V
±
0.2 V
*
< 80 mA @ +30 °
*
C
< 120 mA @ -20 °
*
C
TEMP. RANGE *
STABILITY *
NOTE 2
SCOCXOVT-AR1, BR1, CR1
ADJUSTMENT
WITH RESISTOR
(connected to ground)
INPUT IMPEDANCE
ADJUSTMENT
WITH VOLTAGE
INPUT IMPEDANCE
0 to 10 k
Ω
> -4.7 k
Ω
SCOCXOVT-AV5, BV5, CV5
0.5 to 5 V
> 47 k
Ω
FREQUENCY CONTROL RANGE
CONTROL VOLTAGE:
FREQUENCY DEVIATION:
RESPONSE SLOPE:
see note 2
>
±
2.5 ppm
*
positive
OUTPUT
OUTPUT SIGNAL:
SYMMETRY:
RISE AND FALL TIME:
LEVEL „0“ AND „1“:
FAN OUT (LOAD):
HC-MOS compatible
40 (min.) /60 (max.) % @ Vcc / 2
*
tr < 7ns tf < 7 ns
*
< 0.4 V > Vcc –0.5 V
10 LS
ENVIRONMENT
OPERABLE TEMP. RANGE:
STORAGE TEMP. RANGE:
VIBRATION:
SHOCK:
PACKAGE:
PACKAGE HEIGHT:
-40 to +85 °
C
-65 to +125 °
C
10 to 2000 Hz / 10 g
2000 g, 0.3 ms, ½ sine
DIL 14, 4 pins, GND to case
8 mm
(see packaging info)
MARKING EXAMPLE
Micro Crystal
SCOCXOVT-BV5
20.000 MHz
09.25
12
Micro Crystal
Type
Frequency
(PIN 1)
Spec No.
Date Code
Piece No.
ORDERING INFORMATION EXAMPLE
S C O C X O
V T
-
B V 5
20 MHz
xxx
N° of
customer
spec.
Oscillator output
frequency
Frequency Adjustment
R1
= external resistor
V5
= voltage 5V
Y
= custom spec.
WARM-UP
∆
F/F:
CURRENT:
within spec after 60s @ 30° *
C
< 250 mA during 10s
MISCELLANEOUS
SHORT TERM STABILITY:
PHASE NOISE (BW = 1Hz):
(typical, @ 10MHz in static
conditions)
*
< 1 E-10 0.1 s to 30 s
< 5 E-11 @ 1 s
10 Hz: -100 dBc / Hz
100 Hz: -130 dBc / Hz
1 KHz: -140 dBc / Hz
10 KHz: -145 dBc / Hz
Oscillator Type
SCOCXO =
Low g sensitivity
Oven Controlled
Crystal Oscillator
Oscillator Version
V
= low power voltage 5V
T
= tight tolerance
Temperature Range
A
= 0 to +60° +/-0.025ppm
C;
B
= -20 to +70° +/-0.05ppm
C:
C
= -40 to +85° +/-0.1ppm
C;
X
= custom spec.
Customer’s specification on request
STANDARD FREQUENCIES (MHz)
10.0000
26.0000
12.8000
40.0000
16.0000
50.0000
16.3840
52.0000
19.4400
20.0000
DATE:
October 2009
In accordance with our policy of continuous development and improvement,
we reserve the right to modify the design or the specifications of our products without prior notice.
Headquarters:
Micro Crystal AG
Mühlestrasse 14
CH-2540 Grenchen
Switzerland
Tel.
Fax
Internet
Email
Revision No.: 4
Page 1/2
+41 32 655 82 82
+41 32 655 80 90
www.microcrystal.ch
sales@microcrystal.ch
SCOCXOVT
Application and Test Circuit:
Adjustment with voltage
HC-MOS
TTL
Vcc
Ultra Tight Stability
Tight Stability
up to 54 MHz
Oven Controlled Crystal Oscillator
5 V Power Supply
Adjustment with resistor
HC-MOS
TTL
Vcc
Oscilloscope
or
Counter
R load
2k
Oscilloscope
or
Counter
R load
2k
A
D1
14
8
D2
C load
*
15pF
A
D1
14
8
D2
C load
*
15pF
Vcc
V
1
Cd2
Cd1
Vc
7
D3
Vcc
V
1
Cd2
Cd1
Radj
(0–10kohms
)
7
D3
V
D4
low thermal
coefficient
D4
Waveform Output:
Waveshape TTL
tf
tr
Vcc
2.4V min.
Vcc - 0.5V min.
(Except 12V: 5V-0.5V min.)
Waveshape HC-MOS
tf
tr
Vcc
1/2 Vcc
1.4V
Gnd + 0.4V max.
Gnd
0.4V max.
Gnd
T1
T2
T1
T2
Duty Cycle
=
100
×
T
1
[
%
]
T
1
+
T
2
DATE:
October 2009
In accordance with our policy of continuous development and improvement,
we reserve the right to modify the design or the specifications of our products without prior notice.
Headquarters:
Micro Crystal AG
Mühlestrasse 14
CH-2540 Grenchen
Switzerland
Tel.
Fax
Internet
Email
Revision No.: 4
Page 2/2
+41 32 655 82 82
+41 32 655 80 90
www.microcrystal.ch
sales@microcrystal.ch
Analog electronics
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