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M675-01-BD Datasheet(PDF) 1 Page - Integrated Circuit Systems |
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M675-01-BD Datasheet(HTML) 1 Page - Integrated Circuit Systems |
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1 / 6 page  M675 Datasheet Rev 0.4 Revised 16Nov2004 Integr a t ed Cir cui t S ystems , Inc . ● N e tw or kin g & C o mm un icat ion s ● www. icst.com ● te l (5 08 ) 85 2-5 4 0 0 M675 VOLTAGE CONTROLLED SAW OSCILLATOR Integrated Circuit Systems, Inc. Prelimina r y Inf o r m ation GENERAL DESCRIPTION The M675 is a VCSO (Voltage Controlled SAW Oscillator) 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 M675-01 is available in a range of center frequencies from 125 to 175 MHz. The M675-02 provides 500 to 700 MHz. Guaranteed minimum pull-range of ±100 ppm meets GbE requirements. (It also fully satisfies ±50 ppm minimum pull-range specification commonly required.) Industry-standard Kvco (VCO Gain) provides full replacement compati- bility. The M675 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., SONET/SDH). FEATURES ◆ Integrated SAW device ◆ M675-01 output frequencies from 125 to 175 MHz M675-02 output frequencies from 500 to 700 MHz (Specify center frequency at time of order) ◆ Industry-standard Kvco for full compatibility ◆ Low phase jitter 0.2ps rms typical for the M675-02 (50kHz to 80MHz) ◆ Differential 3.3V LVPECL output ◆ Single 3.3V power supply ◆ Small 5 x 7.5mm SMT (surface mount) package PIN ASSIGNMENT (5 x 7.5mm SMT) Figure 1: Pin Assignment BLOCK DIAGRAM Figure 2: Block Diagram Sample of Available Output Frequencies VCSO Center Frequencies1 (MHz) Note 1: Specify VCSO center frequencies at time of order Applications M675-01 M675-02 155.5200 622.0800 SONET/SDH 156.2500 625.0000 Gigabit Ethernet 161.1328 644.5313 Gigabit Ethernet FEC 167.3316 669.3266 SONET/SDH FEC Table 1: Sample of Available Output Frequencies M675 ( T op View) M675 CLK_EN VIN FOUT nFOUT SAW Delay Line Phase Shifter M670 M675 M675 Voltage Controlled SAW Oscillator |
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