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SCOCXOT
FREQUENCY STABILITY
OVER: OPERATING TEMP. RANGE : LONG TERM AGING 1ST YEAR: 10 YEARS: SUPPLY VOLTAGE 0.5 V LOAD 10%: see note 1 < 0.3 ppm * < 2.5 ppm * < 0.1 ppm (on request, < 0.025 ppm) < 0.01 ppm
Ultra Tight Stability
up to 20 MHz
Oven Controlled Crystal Oscillator 12 V Power Supply
NOTE 1
TEMP. RANGE * STABILITY *
SCOCXOT-AR1, AV5 0 to +60 C 0.025 ppm (0.05 ppm peak to peak) SCOCXOT-BR1, BV5 -20 to +70 C 0.05 ppm (0.1 ppm peak to peak) SCOCXOT-CR1, CV5 -40 to +85 C 0.1 ppm (0.2 ppm peak to peak)
TEMP. RANGE * STABILITY *
POWER SUPPLY
SUPPLY INPUT: INPUT CURRENT : INPUT CURRENT : Vcc = 12 V 0.5 V * < 25 mA @ +30 * C < 40 mA @ -20 * C
TEMP. RANGE * STABILITY *
NOTE 2
SCOCXOT-AR1, BR1, CR1 ADJUSTMENT WITH RESISTOR (connected to ground) INPUT IMPEDANCE ADJUSTMENT WITH VOLTAGE INPUT IMPEDANCE 0 to 10 k > -4.7 k SCOCXOT-AV5, BV5, CV5 0.5 to 5 V > 47 k
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 > 5V -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, 1/2 sine DIL 14, 4 pins, GND to case 8 mm (see packaging info)
MARKING EXAMPLE
SCOCXOT-BV5 20.000 MHz Type Frequency (PIN 1) Spec No. Date Code Piece No.
01.25 12
ORDERING INFORMATION EXAMPLE
S C O CXO
Oscillator Type SCOCXO = Low g sensitivity Oven Controlled Crystal Oscillator Oscillator Version T = tight tolerance Temperature Range A = 0 to +60 +/-0.05ppm C; B = -20 to +70 +/-0.1ppm C: C = -40 to +85 +/-0.2ppm C; X = custom spec.
WARM-UP
F/F: CURRENT: within spec after 60s @ 30 * C < 250 mA during 10s
T
-
BV5
20 MHz
xxx
N of customer spec.
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 1 Hz: - 60 dBc / Hz 10 Hz: -90 dBc / Hz 100 Hz: -120 dBc / Hz 1 kHz: -130 dBc / Hz
Oscillator output frequency Frequency Adjustment R1 = external resistor V5 = voltage 5V Y = custom spec.
Customer's specification on request
STANDARD FREQUENCIES (MHz)
10.0000 12.8000 16.0000 16.3840 19.4400 20.0000
Date:
September 2005
Revision No. : 3
Revision Date : 10-06 Page 1/2
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 Div. of ETA SA Muhlestrasse 14 CH-2540 Grenchen Switzerland
Tel. Fax Internet Email
+41 32 655 82 82 +41 32 655 80 90 www.microcrystal.ch sales@microcrystal.ch
SCOCXOT
Application and Test Circuit: Adjustment with voltage
HC-MOS TTL
Ultra Tight Stability
up to 20 MHz
Oven Controlled Crystal Oscillator 12 V Power Supply
Adjustment with resistor
HC-MOS TTL
Vcc
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 x
T1 [%] T1 + T 2
Date:
September 2005
Revision No. : 3
Revision Date : 10-06 Page 2/2
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 Div. of ETA SA Muhlestrasse 14 CH-2540 Grenchen Switzerland
Tel. Fax Internet Email
+41 32 655 82 82 +41 32 655 80 90 www.microcrystal.ch sales@microcrystal.ch

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