ULN SAW Oscillator OCSO for airborne applications SR E03 640 MHz

Product catalog summary

Product Description
The SR E02 is an Ultra Low Noise (ULN) Phase Locking (PL) Oven Controlled, Voltage Controlled, SAW Oscillator (OCVCSO) operating at 320 MHz. It can phase-lock to an external 10 MHz reference and is designed for airborne environments. The oscillator includes vibration and shock absorbers and is housed in a 70mm x 70mm x 34.75mm package. It supports three operating modes: Free running, Voltage controlled, and Phase Lock Loop.

Features
- Typical phase noise of -170 dBc/Hz at 10 kHz offset
- Noise floor of -180 dBc/Hz
- Applications include airborne radars

Specifications
Environmental Conditions:
- Operating temperature: -40 to 70°C
- Storage temperature: -40 to 85°C
- Shock resistance: 30g, 11ms
- Vibration resistance: 0.02g²/Hz (10 to 1000Hz), 0.005g²/Hz (1 to 2kHz)
- Humidity: 93% RH at 60°C
- Low pressure & temperature: 120hPa within -40 to 55°C
- Constant acceleration: 18g in all directions
Electrical Interface:
- Supply voltage: 11.8 to 12.2 V
- Load impedance: 50 Ω
- Control Input: 2 to 7 V or 10 MHz
- BIT status: On/Off logic
Performance:
- Nominal frequency: 320 MHz
- Frequency stability: ±1 ppm over temperature, ±1 ppm/year long-term
- Voltage range for control: 2 to 7 V
- Frequency tuning: ±3 ppm
- Harmonics suppression: 30 dBc
- Power consumption: 8.5 W max during warm-up, 3.6 W max at 25°C
- Warm-up time: 5 minutes
- Output waveform: Sine wave, 11.5 to 13.5 dBm
- Phase noise: -150 dBc/Hz at 1 kHz offset, -170 dBc/Hz at 10 kHz offset, -180 dBc/Hz at 1 MHz offset
- Harmonic distortion: -30 dBc for second and third harmonics, -80 dBc for non-harmonics
BIT Output:
- Logic 0 indicates oscillator ready, Logic 1 indicates alarm

Mechanical Features
The document provides an outline in millimeters.

Pin Description
- Pin 1: Frequency output
- Pin 2: Supply voltage
- Pin 3: BIT status
- Pin 4: Control Input