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Seiko NPC designers were challenged to develop a superior close-in phase noise oscillator and 5058H is the result. -98dB at 10 Hz and -164dB floor at 1MHz is consistently better than current best standard products and offer the performance in a range of small LCC packages, from 7x7mm to 2.5x2.0mm

Applications requiring lowest jitter possible for maximum accuracy or precision will benefit from using clocks made using the 5058H crystal oscillator CMOS IC.

Operating supply voltage is 1.6 to 3.63Vo over an operating temperature range of -40°C to 125°C

Packages for 5058H

Size (mm)PackageHeight
w/o lid (mm)
PadsD/A connectionLayout TypeLidStepped Lid
3.2x2.5PDFS3225CLK50.944VSSI II FCWBPDFLDK3225-2-1NPDFLDSL3225-3-10N
7.0x5.0PDFS5070CLK41.24NCI II FCWBPDFLDK5070-4-10NPDFLDSL5070-5-10K PDFLDSL5070-5-11K

Key Features

  • ·Operating supply voltage: 1.60V to 3.63V
  • ·Recommended oscillation frequency
  • (Fundamental-frequency): 20MHz to 50MHz
  • ·Phase noise:Typical -98dBc/Hz @5058HA1version
  • Offset Frequency=10Hz, fOSC=49MHz, VDD=1.8V
  • ·Current consumption :1.0mA typ. @ Hx1 ver. fOSC=49MHz,
  • VDD=1.8V, no load
  • ·Operation temperature: -40 to +125°C
  • ·Standby function
  • High impedance in standby mode, oscillator stops
  • ·Oscillation detection circuit built-in


  • Data Acquisition Systems
  • Professional Audio


  • Lowest jitter oscillator in small LCC
  • Improve critical timing
  • Low power
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