OCXO Oscillators

OCXO stands for Oven Controlled Crystal Oscillator. These oscillators offer higher stability than standard Clock Oscillators or TCXO’s over temperature variations. They can also offer better overall accuracy over the short term (typically 1x10−12 over a few seconds) and longer-term (typically 1x10−8 (10 ppb) per year).

OCXO’s are precision oscillators that can provide a stable oscillation over variations in ambient temperature. OCXO temperature stability can range from the most basic at 500ppb to sophisticated double ovens at 0.02ppb, with most falling between 50ppb and 3ppb.

OCXO’s work through the tight control of their internal oven that keeps the chamber and the crystal at a set temperature, so holding the frequency stable. The temperature selected for the oven is one at which the slope of the crystal's frequency vs. temperature curve is near zero. This is called the &147turn point&148 of the crystal and is normally 75°C to 80°C for commercial OCXO’s. For industrial grade OCXO’s where the maximum temperature can vary up to 85°C, the turn point will be higher still. The important design consideration is that the turn point/oven temperature must be higher than the operating temperature, so frequency control is maintained.

Output logic options for these oscillators consist of HCMOS, Clipped Sine-wave, and Sine-wave configurations


Type of Crystal used


OCXO’s generally use AT-cut or SC-cut (Stress-Compensated) crystals in their design, with the SC-cut being used for higher performance. The SC-cut crystal offer flatter frequency vs. temperature curve reduces warmup time, and has other good attributes, like better ageing, higher Q resulting in better phase noise, less G-sensitivity, and less sensitive to vibration.

Applications:


  • Broadcasting
  • Satellite Systems
  • Telecommunications
  • Data communications
  • Test and measurement

...
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제품설명 단가 Oscillator Type Output Frequency Frequency Stability Load Capacitance Package Type Output Level Minimum Operating Temperature Maximum Operating Temperature Height Dimensions
RS 제품 번호 894-9809
제조사 부품 번호LFOCXO063815Bulk
제조사IQD
₩249,455.45
Each
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OCXO 10MHz ±1ppb 15pF 36x27mm DIP Sinewave -40°C 85°C 13mm 36.2 x 27.2 x 13mm
RS 제품 번호 894-9798
제조사 부품 번호LFOCXO063802Bulk
제조사IQD
₩107,911.00
Each
수량
OCXO 19.2MHz 0.001ppm 15pF SMD HCMOS -40°C 85°C 6.5mm 14.4 x 9.5 x 6.5mm
신제품
RS 제품 번호 205-5869
제조사 부품 번호EWOS20-5V0-B-C1
제조사SYRLINKS
₩542,599.20
Each (In a Box of 2)
수량
OXCO 20MHz ±70ppb 10pF DIL14 Low Clipped Sinewave - - - -
신제품
RS 제품 번호 205-5871
제조사 부품 번호SGTM10-3V3-B-H6
제조사SYRLINKS
₩796,166.80
Each
수량
OXCO 10MHz ±70ppb 15pF Encapsulated DIL14 HCMOS - - - -
RS 제품 번호 894-9802
제조사 부품 번호LFOCXO063804Bulk
제조사IQD
₩107,911.00
Each
수량
OCXO 38.88MHz ±20ppb 15pF SMD HCMOS -40°C 85°C 6.5mm 14.4 x 9.5 x 6.5mm
신제품
RS 제품 번호 205-5868
제조사 부품 번호EWOS10-5V0-B-C1
제조사SYRLINKS
₩509,795.00
Each (In a Box of 2)
수량
OXCO 10MHz ±70ppb 10pF DIL14 Low Clipped Sinewave - - - -
신제품
RS 제품 번호 205-5876
제조사 부품 번호SGTM10HP-5V0-B-S5
제조사SYRLINKS
₩1,152,580.00
Each
수량
OXCO 10MHz ±10ppb 15pF Encapsulated Europack Sine - - - -
신제품
RS 제품 번호 205-5873
제조사 부품 번호SGTM20-3V3-B-H6
제조사SYRLINKS
₩796,166.80
Each
수량
OXCO 20MHz ±70ppb 15pF Encapsulated DIL14 HCMOS - - - -
신제품
RS 제품 번호 205-5870
제조사 부품 번호EWOS40-5V0-B-C1
제조사SYRLINKS
₩554,125.00
Each (In a Box of 2)
수량
OXCO 40MHz ±70ppb 10pF DIL14 Low Clipped Sinewave - - - -
RS 제품 번호 693-6744
제조사 부품 번호MOFH5200C-10.000
제조사MMD
₩259,986.15
Each
수량
OCXO 10MHz ±200ppb 15pF PDIP HCMOS -20°C 70°C 13.1mm 20.7 x 10.8 x 13.1mm
신제품
RS 제품 번호 205-5875
제조사 부품 번호EWOS831-5V0-B-S4
제조사SYRLINKS
₩907,878.40
Each
수량
OXCO 10MHz ±10ppb 15pF Europack High Sine - - - -
RS 제품 번호 894-9782
제조사 부품 번호LFOCXO063800Bulk
제조사IQD
₩107,911.00
Each
수량
OCXO 10MHz ±20ppb 15pF SMD HCMOS -40°C 85°C 6.5mm 14.4 x 9.5 x 6.5mm
RS 제품 번호 729-3329
제조사 부품 번호OCXOV-AV5-10.000
제조사Micro Crystal
₩192,331.75
Each
수량
OCXO 10MHz ±0.2ppm - PDIP HCMOS 0°C 60°C 7.8mm 20.14 x 12.52 x 7.8mm
신제품
RS 제품 번호 205-5874
제조사 부품 번호EWOS10HP-5V0-B-S4
제조사SYRLINKS
₩902,558.80
Each
수량
OXCO 10MHz ±10ppb 15pF Europack High Sine - - - -