M685 vcso equivalent, dual saw / selectable frequency vcso.
* Two integrated SAW devices and selectable output frequency; supports multi-rate optical interfaces
* M685-01 output frequencies from 125 to 175 MHz M685-02 outp.
in telecom and optical fiber networking systems (e.g., OC-48).
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M685 M680
( To p Vi ew)
1
2
VIN
F_SEL
Figure .
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 p.
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