GENERAL DESCRIPTION

The M2006-12A is a VCSO (Voltage Controlled SAW Oscillator) based clock generator PLL designed for clock frequency translation and jitter attenuation. Clock multiplication ratios (including forward and inverse FEC) are pin-selected from pre-programming look-up tables. Includes Hitless Switching and Phase Build-out to enable SONET (GR-253) / SDH (G.813) MTIE and TDEV compliance during reference clock reselection. Hitless Switching (HS) engages when a 4ns or greater clock phase change is detected.

FEATURES

◆ Reduced intrinsic output jitter and improved power supply noise rejection compared to M2006-12

◆ Similar to the M2006-02A - and pin-compatible - but adds Hitless Switching and Phase Build-out functions

◆ Includes APC pin for Phase Build-out function (for absorption of the input phase change)

◆ Pin-selectable PLL divider ratios support forward and inverse FEC ratio translation

◆ Input reference and VCSO frequencies up to 700MHz

(Specify VCSO frequency at time of order)

◆ Low phase jitter of 0.25 ps rms typical

(12kHz to 20MHz or 50kHz to 80MHz)

◆ Commercial and Industrial temperature grades

◆ Single 3.3V power supply

◆ Small 9 x 9 mm SMT (surface mount) package