M660-02

Integrated Circuit Systems, Inc. Preliminary Information M660-02 DUAL SAW, SELECTABLE FREQUENCY VCSO PIN ASSIGNMENT (9 x 14mm SMT) nFOUT 5 2 F_SEL FOUT 4 3 GND VCC 6 1 VIN GENERAL DESCRIPTION The M660-02 is a dual SAW, selectable frequency VCSO frequency source for low-jitter clock generation. An integrated SAW (surface acoustic wave) delay line implements the high-Q VCO (voltage controlled oscillator) function, which results in low output phase noise and very low jitter. The M660-02 is available in a range of center frequencies from 500 to 700MHz. Minimum pull-range is ±50 ppm (wider pull-range is available). The M660-02 is well suited for phase-locked loop implementations, clock and data recovery circuits, and other timing applications in telecom and optical fiber networking systems (e.g., OC-48, OC-192). M660-02 M660 (Top View) Figure 1: Pin Assignment FEATURES ◆ Two integrated SAW devices ◆ Selectable output frequency ◆ Supports multi-rate optical interface requirements ◆ VCSO center frequencies from 500 to 700 MHz (Specify center frequency at time of order) ◆ Low phase jitter 0.19ps rms typical (50kHz-80MHz) ◆ Low phase noise -70dBc/Hz @ 1kHz offset ◆ Differential 3.3V LVPECL output ◆ Single 3.3V power supply ◆ Small 9 x 14mm SMT (surface mount) package Sample of Available Output Frequencies VCSO Center Frequency1 (MHz) 622.0800 625.0000 644.5313 669.3265 Applications SONET/SDH Gigabit Ethernet Gigabit Ethernet FEC SONET/SDH FEC Table 1: Sample of Available Outp...