Oven Controlled Crystal Oscillators
HCMOS SQUAREWAVE OUTPUT OCXO IN 20.3x20.3 mm DIP PACKAGE - OC20C Series
FEATURES
RoHS Compliant, Wide Frequency Range (1 MHz to 100 MHz)
AT-cut or SC-cut Crystal, Stratum3 or Better Stability, 15 pF HCMOS Square Wave Output
Voltage Control Option, Industry Standard Lead Spacing
Standard Frequencies: 10, 12, 12.8, 13, 14.4, 16.384, 32.768, 100.00 MHz
SPECIFICATIONS
Frequency Stability vs. Temp
Temperature Range
Aging (after 30 days)
Initial Tolerance
Frequency vs. Load
Frequency vs. Voltage
Storage Temperature Range
Phase Noise(Typ,10MHz,AT-cut)
G-Sensitivity
Inpuy Voltage (Vcc)
Input Current (Max)
Output Load
Warm-up Time
Output Waveform
Logic "1" / Logic "0" Level
Risa/Fall Time (Tr/Tf)
EFC Range
Linearity / Slope
EFC Input Impedance
Creating a Part Number
Product Series
Frequency
Supply Voltage: A = 5.0V
B = 3,3V
20 = ±20 ppb; 50 = ±50 ppb; 100 = ±100 ppb; 500 = ±500 ppb
A = 0°C to 70°C; B = -40°C to 85°C; D = -20°C to 70°C
1E-7
first year, at 10MHz AT-cut
±0.05 ppm Typ, at 25°C, Vc = 1/2 Vcc
±0.02 ppm Typ / ±5% load change
±0.02 ppm/V Typ
-40°C to 105°C
-110 dBc/Hz @10Hz, -135 dBc/Hz @100Hz
-150 dBc/Hz @1KHz, -155 dBc/Hz @10KHz
±0.002 ppm/G, Worst direction
A = +5 VDC ± 5%; B = +3.3 VDC ± 5%
Steady state: 200 mA at 25°C
Start-up: 500 mA
15 pF
3 minutes Maximum, to ±0.1 ppm accuracy
HCMOS compatible square wave; 40/60% Duty cycle
4.5V / 0.5V Typ
5 ns Maximum
±5 ppm/AT-cut, ±0.7 ppm/SC-cut, with control voltage Vc = 0.5V to 4.5V
±10% Maximum of best straight line fit / Positive
100 kOhms Minimum
OC20C-12M800-A 50 D V
(Not all combinations are available. Consult factory)
EFC option or blank
Operating Temperature Range: A = 0 to 70°C
B = -40 to 85°C
D = -20 to 70°C
X = Customized Temp Range
50 = ±50 ppb
100 = ±100 ppb
500 = ±500 ppb
Frequency Stability:
OUTLINE DRAWING
10.5
3
20.3 SQ
4
15.2
Pin Connections
#1: Vcc
#2: Output
#3: GND/case
#4: Vc or NC
#5: Vref or NC
Glasss Standoffs x4
0.5 height
Lead - Kovar; Finish - Ni Plated
2
7.6
1
15.2
5
0.5 DIA
5
All dimensions are typical unless otherwise specified
Dimensions in Millimeters
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