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O55A
Brief Description:
1. Ultra high stability, can replace rubidium clock, temperature stability better than ±0.01ppb(-30℃~75℃);
2. Mainly applied in equipments requiring high for temperature stability, such as 4G LTE, clock reference and  satellite timing service.
Feature list
1. Output
Frequency Range 5.00MHz ~ 40.00MHz
Common Frequencies
5.00MHz 10.00MHz 12.80MHz 13.00MHz 16.384MHz 19.20MHz 19.44MHz
20.00MHz 25.60MHz 26.00MHz 30.72MHz 32.768MHz 38.88MHz 40.00MHz
Customization  
Waveform
Waveform Load Amplitude(dBm) Peak-Peak(V) Harmonic Stray
Sine Wave 50Ω 5 1.1 ≤-40dBc ≤-75dBc
8 1.6
Square wave 15pF LVTTL, HCMOS
2 Frequency Stability (Typical, @10.00MHz)
Temperature Stability(Refer to the table of Stability Selection & Coding Rules)
Short-term stability 2E-12/S(in stable temperature, without EMI/MEC or other interferences,
test at 25℃after
power-on for one hour)
3 Operating Voltage
   5.0V, 12.0V
4 Power consumption @25℃
Warm-up Power Consumption  8.0W
Warm-up Time  3min Max
Stable Power Consumption  4.0W Max
5. Voltage control characteristics
Linearity ≤10%
Slope  Positive
6. Phase Noise(Typical, @10.00MHz)
10Hz    -125dBc/Hz
100Hz   -145dBc/Hz
1KHz    -150dBc/Hz
10KHz   -155dBc/Hz
100KHz  -160dBc/Hz
7 Environment Characteristics
Operable Working Temperature -40℃ ~ +85℃
Storage Temperature   -55℃ ~ +105℃
Vibration
Test Condition:
Amplitude: 0.75mm; acceleration: 10g; 10Hz~500Hz; a cycle per 30min, test for 2 hours in 3 directions
(3 directions: X, Y and Z), IEC 68-2-06 Test Fc.
Shock
50g; 11ms; half sine wave (3 directions: X, Y and Z), IEC 68-2-27 Test Ea/Severity 50A
 
Stability Selection & Coding Rules
Temperature (℃) Temperature Stability Day-aging Year-aging Stability vs. Voltage Stability vs. Load Code
*-20 ~ 70 ±1E-11 ±5E-11 ±5E-9 ±1E-11 ±1E-11 A
-20 ~ 70 ±5E-11 ±5E-11 ±1E-8 ±2E-11 ±2E-11 D
-20 ~ 70 ±2E-10 ±1E-10 ±2E-8 ±1E-10 ±1E-10 F
*-30 ~ 75 ±1E-11 ±5E-11 ±5E-9 ±1E-11 ±1E-11 B
-30 ~ 75 ±5E-11 ±5E-11 ±1E-8 ±2E-11 ±2E-11 C
-30 ~ 75 ±2E-10 ±1E-10 ±2E-8 ±1E-10 ±1E-10 H
-40 ~ 80 ±2E-10 ±2E-10 ±2E-8 ±1E-10 ±1E-10 J
O55A  –  X  X  X  X  –  XX.XX  MHz
 
                             ①     ②  ③ ④ ⑤      ⑥
① Series No.  ②See the table above  ③See Table 1  ④See Table 2 ⑤See Table 3  ⑥Output frequency
 
Note: * stands for not support to analog voltage control
Besides the specifications above, this product can be customized according to your requirements.
 
Table 1                          
1 LVTTL
3 HCMOS
4 Sine Wave
Table 2
2 5.0V
4 12.0V
Table 3
 
Pull-in Range              Central Voltage
1.65V 2.5V 16 Bit I2C
±0.3ppm ~ ±0.5ppm 1 5 4
±0.5ppm ~ ±0.8ppm 2 6 0
N/C 9
8 Mechanical Structure(mm)


9 Weight: about 56.1g
10 Reflow Soldering Curve (RoHS)

11 Package: PVC tube(mm)
Detail Download Format Download
Recommendation
DIP 50.0*50.0*13.0mm, high stale and ultra thin, stratum 2 OCXO
DIP 36.0*27.0*12.7mm, temperature stability better than ±5E-11(-30℃~75℃), stratum 2 OCXO
DIP 25.4*25.4*13mm, small size, stratum 2 OCXO
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