The ECM VF194 / 294 is a Surface Mount VCXO with a frequency range of 1.54MHz to 160.0MHz, temperature stability of +/-25ppm, and a supply voltage of 5V +/-5% and a supply current of 30mA No Load.
The ECM VF194 and VF294 are miniature surface‑mount voltage‑controlled crystal oscillators (VCXOs) offering very low phase jitter and an industrial temperature range. They are supplied in a compact ceramic package with a tri‑state output option and operate from a 3.3 V or 5 V supply.
Key specifications include a frequency range of 1.54 MHz to 160 MHz, supply voltage tolerance of ±5 %, stability of ±25 ppm over temperature, and phase jitter as low as 1 ps for frequencies below 52 MHz. The devices support duty‑cycle options of 40/60 or 45/55 and feature low‑level logic thresholds suitable for TTL interfaces.
| Frequency Range | 1.54 MHz to 160 MHz |
|---|---|
| Supply Voltage | 5 V ±5 % |
| Supply Voltage (option) | 3.3 V ±5 % |
| Supply Current (no load) | 30 mA |
| Stability | ±25 ppm over temperature |
| Duty Cycle | 40/60 or 45/55 |
| Rise & Fall Times | 6 ns max |
| Logic “1” Level | 0.9 V min |
| Logic “0” Level | 0.1 V max |
| Start‑up Time | 10 ms max |
| Phase Jitter (<52 MHz) | 1 ps max |
| Phase Jitter (>52 MHz) | 20 ps max |
| Modulation Bandwidth | 10 kHz @ -3 dB min |
| Input Impedance | 50 kΩ min |
| Operating Temperature (standard) | 0 °C to +70 °C |
| Operating Temperature (option) | -45 °C to +85 °C |
The device covers a frequency range from 1.54 MHz up to 160 MHz.