The VCC6-Q/R Series 2.5 and 3.3 volt LVPECL Crystal Oscillator Features: 2.5 or 3.3V LVPECL, 3rd Overtone Crystal for best jitter performance, Output frequencies to 270 MHz, Low Jitter < 1 pS rms, 12kHz to 20MHz, Enable/Disable for test and board debug, -10/70 or –40/85 °C operating temperature, Hermetically sealed ceramic SMD package, Product is compliant to RoHS directive.
The VCC6-Q/R series provides LVPECL crystal oscillators with selectable 2.5 V or 3.3 V supply options, low jitter performance (<1 ps rms) and an enable/disable pin for test and board debug. Features include overtone crystal operation, hermetically sealed SMD package, and compliance with RoHS.
Typical applications cover high‑speed communications such as SONET/SDH/DWDM, Fiber Channel, Gigabit Ethernet, SAN, digital video and broadband access. The datasheet details electrical performance, pinout, termination recommendations, reliability data, reflow profile and packaging information.
| Frequency range | 10 MHz – 270 MHz |
|---|---|
| Supply voltage (3.3 V option) | 3.15 V – 3.45 V |
| Supply voltage (2.5 V option) | 2.375 V – 2.625 V |
| Jitter (12 kHz‑20 MHz) | 0.3 ps – 0.7 ps rms |
| Rise time | 600 ps |
| Fall time | 600 ps |
| Output logic high (typical, 3.3 V) | Vpp‑0.880 V |
| Output logic low (typical, 3.3 V) | Vpp‑1.620 V |
| Operating temperature options | -10 °C to 70 °C or -40 °C to 85 °C |
| Frequency stability | +25 ppm, +50 ppm or +100 ppm |
The device is available with either a 2.5 V or a 3.3 V LVPECL supply option.
The oscillator achieves low jitter, typically 0.3 ps rms (up to 0.7 ps rms) in the 12 kHz‑20 MHz band.