The M685 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 M685-01 is available in a range of center frequencies from 125 to 177 MHz. The M685-02 provides 500 to 708 MHz. Guaranteed minimum pull-range of ±120 ppm meets GbE requirements. (It also fully satisfies ±50 ppm minimum pull-range specification commonly required.) Industry-standard Kvco (VCO Gain) provides full replacement compatibility. The M685 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).
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Product Change Notice | PDF 361 KB | |
End Of Life Notice | PDF 71 KB | |
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Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
Pkg. Type |
Lead Count (#) |
Temp. Grade |
Pb (Lead) Free |
Carrier Type |
Buy / Sample |
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Part Number | ||||||
CLCC | 6 | I | Yes | Tube | ||
CLCC | 6 | I | Yes | Reel | ||
CLCC | 6 | I | Yes | Tube | ||
CLCC | 6 | I | Yes | Reel | ||
CLCC | 6 | I | Yes | Tube | ||
CLCC | 6 | I | Yes | Reel | ||
CLCC | 6 | I | Yes | Tube | ||
CLCC | 6 | I | Yes | Reel | ||
CLCC | 6 | I | Yes | Tube | ||
CLCC | 6 | I | Yes | Reel | ||
CLCC | 6 | I | Yes | Tube | ||
CLCC | 6 | I | Yes | Reel | ||
CLCC | 6 | I | Yes | Tube | ||
CLCC | 6 | I | Yes | Reel | ||
CLCC | 6 | I | Yes | Tube | ||
CLCC | 6 | I | Yes | Reel | ||
CLCC | 6 | I | Yes | Tube | ||
CLCC | 6 | I | Yes | Reel | ||
CLCC | 6 | I | Yes | Tube | ||
CLCC | 6 | I | Yes | Reel | ||
CLCC | 6 | I | Yes | Tube | ||
CLCC | 6 | I | Yes | Reel | ||
CLCC | 6 | I | Yes | Tube | ||
CLCC | 6 | I | Yes | Reel | ||
CLCC | 6 | I | Yes | Tube | ||
CLCC | 6 | I | Yes | Reel | ||
CLCC | 6 | I | Yes | Tube | ||
CLCC | 6 | I | Yes | Reel |