An oven controlled crystal oscillator (OCXO) provides a frequency reference using a temperature-controlled crystal oscillator. Select it by nominal frequency, stability, phase noise, tuning behaviour, power requirements and mechanical interface. These are oscillator specifications; isolation and insertion loss are not substitutes for them.
The RFComp model listed below is HD32593, a 100 MHz OCXO. Its datasheet specifies an SMA female connector, a nominal +12 V supply and 0–5 V frequency control with negative slope. Review the HD32593 datasheet for electrical conditions and the outline drawing.
| Part Number | Frequency (MHz) | Temp Stability (PPM) | Output Power (dBm) | Phase Noise (dBc/Hz) | Tuning Voltage (V) | Tuning Range (ppm) | DC Power (Volt) | DC Power (mA) | |
| HD32593 | 100 | ± 0.5 | 7 | -139 dBc/1KHz | 0 to 5 Negative Slope | ± 3 | 12 | 100 (350 at turn on) | Download |
The values below summarize the published HD32593 datasheet. Typical values are not guaranteed limits for every operating condition.
The datasheet lists a 100 MHz output, +7 dBm typical output power and +3 dBm minimum under its stated electrical test conditions. The output uses an SMA female connector.
Typical phase noise is −139 dBc/Hz at 1 kHz offset and −151 dBc/Hz at 10 kHz offset. Listed temperature stability is ±5 × 10⁻⁷ (±0.5 ppm). Always compare phase noise at the same offset.
Supply range is +11.5 to +12.5 V, nominal +12 V. Current is 350 mA maximum at turn-on and 100 mA typical after stabilization at +25 °C. Control is 0–5 V, negative slope, with a typical ±3 ppm tuning range.
For a quotation, send the required frequency, stability, phase-noise offsets, supply, tuning range, quantity and mechanical constraints.
HD32593 is a 100 MHz oven controlled crystal oscillator. The datasheet lists 0–5 V control with negative slope and a typical ±3 ppm adjustment range. Check the control-voltage interface and tuning direction when designing a frequency-adjustment loop.
Compare values in dBc/Hz at the same offset from the carrier and under stated measurement conditions. HD32593 lists typical phase noise of −115 dBc/Hz at 100 Hz, −139 dBc/Hz at 1 kHz, −151 dBc/Hz at 10 kHz and −154 dBc/Hz at 100 kHz offsets. One offset value does not describe the entire noise spectrum.
For HD32593, the nominal supply is +12 V, with 350 mA maximum current at turn-on and 100 mA typical after stabilization at +25 °C. The linked datasheet does not specify a warm-up duration. If start-up accuracy or readiness time matters, request the applicable warm-up specification and test conditions before selecting the part.
State the nominal frequency, tuning range, control polarity and required output level or waveform.
Frequency and interface
Output and tuning requirements
List phase-noise limits at specific offsets, temperature stability, aging and any short-term stability requirement.
Reference performance
Noise and stability limits
Include available supply voltage and current, start-up readiness time, operating temperature, mounting limits, quantity and required delivery date.
Integration and quotation
Power, environment and mechanical fit
Request pricing and availability for HD32593, or send RFComp your frequency-reference requirements for review. Include the required frequency, phase-noise limits and offsets, stability, warm-up needs, supply and package constraints. Browse the oscillator family to compare other reference options.
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