Dual Saw, Selectable Frequency VCSO

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.) Industrystandard 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).

Features

  • Two integrated SAW devices and selectable output frequency
  • supports multi-rate optical interfaces
  • M685-01 output frequencies from 125 to 177 MHz M685-02 output frequencies from 500 to 708 MHz (Specify center frequencies at time of order)
  • Industry-standard Kvco for full compatibility
  • Low phase jitter 0.2ps rms typical for the M685-02 (50kHz to 80MHz)
  • Differential 3.3V LVPECL output
  • Single 3.3V power supply
  • Small 5 x 7.5mm SMT (surface mount) package
  • Pb-free / Compliant to EC RoHS Directive

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
M685-02-AA-AB Obsolete CB6 CLCC 6 I Yes Tube Availability
M685-02-AA-ABT Obsolete CB6 CLCC 6 I Yes Reel Availability
M685-02-AA-AD Obsolete CB6 CLCC 6 I Yes Tube Availability
M685-02-AA-ADT Obsolete CB6 CLCC 6 I Yes Reel Availability
M685-02-AA-AE Obsolete CB6 CLCC 6 I Yes Tube Availability
M685-02-AA-AET Obsolete CB6 CLCC 6 I Yes Reel Availability
M685-02-AA-AH Obsolete CB6 CLCC 6 I Yes Tube Availability
M685-02-AA-AHT Obsolete CB6 CLCC 6 I Yes Reel Availability
M685-02-AA-AJ Obsolete CB6 CLCC 6 I Yes Tube Availability
M685-02-AA-AJT Obsolete CB6 CLCC 6 I Yes Reel Availability
M685-02-AB-AD Obsolete CB6 CLCC 6 I Yes Tube Availability
M685-02-AB-ADT Obsolete CB6 CLCC 6 I Yes Reel Availability
M685-02-AD-AA Obsolete CB6 CLCC 6 I Yes Tube Availability
M685-02-AD-AAT Obsolete CB6 CLCC 6 I Yes Reel Availability
M685-02-AD-AL Obsolete CB6 CLCC 6 I Yes Tube Availability
M685-02-AD-ALT Obsolete CB6 CLCC 6 I Yes Reel Availability
M685-02-AD-AM Obsolete CB6 CLCC 6 I Yes Tube Availability
M685-02-AD-AMT Obsolete CB6 CLCC 6 I Yes Reel Availability
M685-02-AE-AH Obsolete CB6 CLCC 6 I Yes Tube Availability
M685-02-AE-AHT Obsolete CB6 CLCC 6 I Yes Reel Availability
M685-02-AH-AA Obsolete CB6 CLCC 6 I Yes Tube Availability
M685-02-AH-AAT Obsolete CB6 CLCC 6 I Yes Reel Availability
M685-02-AH-AL Obsolete CB6 CLCC 6 I Yes Tube Availability
M685-02-AH-ALT Obsolete CB6 CLCC 6 I Yes Reel Availability
M685-02-AJ-AU Obsolete CB6 CLCC 6 I Yes Tube Availability
M685-02-AJ-AUT Obsolete CB6 CLCC 6 I Yes Reel Availability
M685-02-AM-AQ Obsolete CB6 CLCC 6 I Yes Tube Availability
M685-02-AM-AQT Obsolete CB6 CLCC 6 I Yes Reel Availability

Technical Documentation

Title Other Languages Type Format File Size Date
PCNs & PDNs
PCN# : TB1303-02 Change of Tape & Reel Packing Method for Selective Products Product Change Notice PDF 361 KB Mar 23, 2013
PDN# : Z-13-01 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 71 KB Mar 18, 2013