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Oven Controlled Crystal Oscillator(OCXO) POC2525

Oven Controlled Crystal Oscillator(OCXO) POC2525

FEATURE

①Ultra Low Phase Noise & Low G-Sensitivity

②Hermetically Sealed Package

③Tight Frequency Stability

④Low Power Consumption

⑤Fast Warm-up Time

⑥Electrical Frequency Tuning Input

⑦Reference Voltage Output

⑧RoHS-Compliant (lead-free)

 

TYPICAL APPLICATION

①Instrument Reference

②Microwave Communication

③Clock Reference for Microwave Signal Source

④Test & Measurement

⑤Telecom Systems

⑥Radar Systems

⑦Medical (MRT)

  • Type :

    AG5
  • Model :

    POC2525
  • Package size :

    25.4*25.4*12.8mm
  • Frequency :

    5.000M~120.000M

Oven Controlled Crystal Oscillator(OCXO) POC2525

The POC2525-MHz series OCXO (temperature-controlled Crystal oscillator) launched by Zhejiang A-Crystal has a frequency range of 5.0M to 120.000MHz, featuring ultra-low phase noise (-100 DBC/Hz@10Hz) and excellent frequency stability (±0.3ppm initial accuracy). The product adopts SMD 2525 packaging and supports electrical frequency modulation (±2.5ppm), and is suitable for high-precision fields such as microwave communication, radar systems, and medical equipment. Features include fast startup (stable within 5 minutes), low power consumption (2.1W), compliance with RoHS standards, and passing MIL-STD environmental tests to ensure industrial-grade reliability.

1. ELECTRICAL SPECIFICATIONS

 

No. Item Electrical Specification Remark
Min. Type Max. Units
OUTPUT (PIN = “R.F. OUTPUT”)
1 Nominal Frequency     5.000   120.000 MHz  
2 Initial Accuracy     -0.3   +0.3 ppm @ +25 ±1°C,after turn on power 60 minutes,Vco=+5V
3 Waveform     Sine wave    
4 Level     +15     dBm  
5 Load       50   Ω ±10%
6 Harmonics         -30 dBc  
7 Spurious         -100 dBc  
FREQUENCY STABILITY
8 Ambient ±50   ±500 ppb referenced to 25°C
9 Aging Daily -5   +5 ppb After 30 days.
yearly -200   +200 ppb  
15 years -2   +2 ppm  
10 Voltage -5   +5 ppb ±5% change
11 Short term     0.05 ppb root Allan variance for τ=1 sec
12 Load -5   +5 ppb ±10% change
13 Warm-up -50   +50 ppb in 5 minutes @ +25 ±1°C, referenced to 1 hour
14 G-Sensitivity (each axis)     1 Ppb/g  
15 Phase Noise   Option A Option B     Refer to Table 1 : Ordering Information
@10Hz -100 -105   dBc/Hz  
@100Hz -130 -135   dBc/Hz  
@1KHz -157 -162   dBc/Hz  
@10KHz -180 -180   dBc/Hz  
@100KHz -185 -185   dBc/Hz  
@1MHz -185 -185   dBc/Hz  
ELECTRICAL FREQUENCY ADJUSTMENT (PIN = “VCO INPUT”)
16 Tuning Range ±2.5     ppm Referenced to frequency at nominal Center Voltage
17 Control Voltage 0   +10 V  
18 Slope   Positive      
19 Center Voltage   +5   V  
20 Linearity -10   +10 %  
* Sufficient to adjust the oscillator to nominal frequency for 10 years. Some unit will have ±0.7ppm tuning range.
INPUT POWER (PIN = “+VDC”)
21 Voltage +4.75 +5 +5.25 V  
22 Current Steady State     2.1 W @ +25°C
23   During Warm-Up     950 mA @ +25°C
ENVIRONMENTAL
24 Operable Temperature     -40   +85  
25 Storage Temperature     -55   +105  
26 Humidity     MIL-STD-202, Method 103 Test Condition A   95% RH @ +40°C,non-condensing,240 hours
27 Vibration (non-operating)     MIL-STD-202, Method 201   0.06” Total p-p, 10 to 55 Hz
28 Shock (non-operating)     MIL-STD-202, Method 213, Test Condition J   30g, 11ms, half-sine
29 Package type     25.4*25.4*12.8
Note 1: Output maintained over this temperature range. Other requirements of this specification may not be met when operating outside the temperature range in -40~85.
Note 2: Test conditions: VDC = +5 V; VCO = +5 V; at +25 ± 3°C unless otherwise identified.

2. Dimension      (Unit: mm)

OCXO 25.4*25.4*12.8mm

 

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