M906-02中文资料VCSO Based Clock Generator数据手册Renesas规格书

描述 Description

The M906-02 is a Phase-Locked Loop (PLL) based clock generator that uses an internal Voltage Controlled SAW Oscillator (VCSO) to produce a very low jitter output clock. From the M906-02-155.5200, an output clock frequency of 155.52 or 77.76MHz is provided from six LVPECL clock output pairs. (Other frequencies are available; consult the factory.) The accuracy of the output frequency is assured by the internal PLL that phase-locks the internal VCSO to the reference input frequency (19.44MHz for the M906-02-155.5200). The input reference can either be an external crystal, utilizing the internal crystal oscillator, or a stable external clock source such as a packaged crystal oscillator.

特性 Features

• Output clock frequency range 75MHz to 175MHz (Consult the factory for frequency availability)
• Selectable divider chooses one of two frequencies
• Six identical LVPECL output pairs (same frequency)
• Jitter 0.7ps RMS (at 155.52MHz, over 12kHz to 20MHz), typ.
• Ideal for OC-48/STM-16 clock reference
• Output-to-output skew < 100ps
• External XTAL or LVCMOS reference input
• Selectable external feed-through clock input
• STOP clock control (Logic 1 stops output clocks)
• Integrated SAW (surface acoustic wave) delay line
• Single 3.3V power supply
• Small 9mm x 9mm SMT (surface mount) package