CTS Corporation (NYSE: CTS) announces three new models added to its family of high frequency low jitter Clock oscillators. Model 638 [7.0x5.0mm] and Model 655 [5.0x3.2mm] offer 100fs phase jitter performance for standard frequencies between 125MHz and 170MHz. Model 633 [3.2x2.5mm] features clock rates between 10MHz through 220MHz and phase jitter performance less than 500fs throughout the frequency range. All three models are available with LVPECL or LVDS outputs, typical stability options of ±20, ±25 and ±50ppm and +2.5V or +3.3V operation.

In addition to this new product release, two existing models are being upgraded: The frequency range for Model 637 and Model 653 will be offered at frequencies as low as 10MHz, while the phase jitter for Model 653 was improved to level reaching 500fs maximum over its frequency range.

All models within CTS’ low jitter clock portfolio provide the design engineer a low cost, miniature size solution, along with high performance capabilities suitable for complex electronic systems’ requirements. The new clock models support a wide array of market segments; covering infrastructure telecommunication networking, server applications, test and measurement, medical test equipment and much more; delivering superior phase jitter performance and a high level of frequency stability.

Standard product features, common market applications and new series platforms are summarized below. Please refer to individual data sheets on our website to see more performance characteristics.

Product Features

  • Ultra-Low Phase Jitter Performance
  • Fundamental or 3rd Overtone Crystal
  • Small Ceramic Surface Mount Packages
    • 7.0mmx5.0mm - 5.0mmx3.2mm - 3.2mmx2.5mm
  • Output Enable Standard
  • Tape and Reel Packaging
  • Output Types Available
    • LVPECL - LVDS
  • Standard Frequencies Available
    • 25.00MHz - 125.00MHz - 161.1328MHz - 212.50MHz - 50.00MHz - 155.52MHz - 187.50MHz - 250.00MHz - 100.00MHz - 156.25MHz - 200.00MHz - 312.50MHz

Market Applications

  • Serializer/Deserializer [SerDes]
  • Storage Area Networking
  • Broadband Access
  • SONET/SDH/DWDM
  • PON
  • Ethernet/GbE/SyncE
  • Fiber Channel
  • Test and Measurement

Product Summary Clock Selector Guide

MODEL

PACKAGE SIZE [mm]

OUTPUT LOGIC

FREQUENCY [MHz]

PHASE JITTER
[fs Max]

TOTAL STABILITY

SUPPLY VOLTAGE

TEMPERATURE RANGE

638
655

7.0 x 5.0
5.0 x 3.2

LVPECL
LVDS

80 – 170

100 Typ.

200 Max.

±20ppm ±25ppm ±50ppm±100ppm

2.5V
3.3V

-20°C to 70°C -40°C to 85°C

637
653

7.0 x 5.0
5.0 x 3.2

LVPECL
LVDS

10 – 320

500

±20ppm ±25ppm ±50ppm±100ppm

2.5V
3.3V

-20°C to 70°C -40°C to 85°C

633

3.2 x 2.5

LVPECL
LVDS

10 – 220

500

±20ppm ±25ppm ±50ppm±100ppm

2.5V
3.3V

-20°C to 70°C -40°C to 85°C