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The 5028 series are miniature crystal oscillator module ICs operating 0.8 to 2.0 volts, making them ideal choices for single battery clock oscillator operation. The devices are fabricated using a proprietary low voltage process.

Three (3) pad layouts to suit various package options ranging from 7.0x5.0 mm to 2.5x2.0 mm, making these devices ideal for miniature crystal oscillators.

Block Diagram

Packages for 5028

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

  • 0.8 to 2.0V operating supply voltage range
  • 3 pad layout options for mounting
    • 5028Ax series : for Flip Chip Bonding
    • 5028Bx series : for Wire Bonding (type I)
    • 5028Cx series : for Wire Bonding (type II)
  • Recommended oscillation frequency range : 20 MHz to 50 MHz
  • Multi-stage frequency divider for low-frequency output support : 0.75 MHz (min)
  • Selectable by version: f0, f0/2, f0/4, f0/8, f0/16, f0/32, f0/64
  • -40 to 85°C operating temperature range
  • Standby CMOS input disables with high impedance output, oscillator stops
  • CMOS output duty level (1/2VDD)
  • 50 ± 5% output duty
  • 15pF output drive capability
  • Wafer form, Chip form for ceramic LCC assembly
  • -40°C to 85°C operating temperature range


  • Handheld or portable equipment
  • Single Battery Cell applications
  • System clocks


  • Operation across min/max of a single battery simplifies design
  • Eliminates need for DC/DC converter
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