Oscillators TCXO, VCTCXO
General application
Pilot circuit, telecommunications
Features
TCXO – Temperature Compensated Crystal Oscillator. The oscillator is the most suitable when a low frequency
tolerance is required in a wide temperature range.
VCTCXO variant (i.e. Voltage-Controlled Crystal Oscillator) can be produced as well. This variant enables the change in oscillation frequency with external voltage.
Typical specifications
| Type | TCXO-1A | TCXO-1B | TCXO-1C |
|---|---|---|---|
| Frequency range | 5 000 – 24 000 kHz | ||
| Frequency stability vs. temperature range ( at -30°C … +90°C ) |
< ±2.0 ppm | < ±2.5 ppm | < ±3.0 ppm |
| Frequency stability vs. supply voltage drift ±10 % | < ±0.5 ppm | ||
| Frequency stability vs. aging | < ±1 ppm / year | ||
| Supply voltage | +5 V ±10 % | ||
| Supply current | ≤ 3 mA | ||
| Frequency adjustment by internal trimmer | > ±5 ppm | ||
| Pulling voltage VCTRL (for VCTCXO type) | 0,5 V to 4,5 V | ||
| Frequency adjustment by VCTRL (for VCTCXO type) | ±5 ppm | ||
| Output voltage | 450 mVpp | ||
| Load | 680 Ω / 15 pF | ||
| Input impedance | > 100 kΩ | ||
| Operating temperature range | -30°C … +90°C | ||
| Waveform | clipped sinus | ||
Differences from standard values and other parameters can be consulted.
Outline dimensions [mm]
