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Features

Crystal Oscillator Input. PFD / Charge Pump. Loop Filter. Prescalar. Output Divider. LVPECL. VCO 1. Feedback Divider. VCO 2. CDC421 xxx (CDC421100, 106, 125, 156, 212, 250, 312) Fully Integrated Fixed Frequency Low-Jitter Crystal Oscillator Clock Generator. Features. Benefits.

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Features

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  1. Crystal Oscillator Input PFD / Charge Pump Loop Filter Prescalar Output Divider LVPECL VCO 1 Feedback Divider VCO 2 CDC421xxx(CDC421100, 106, 125, 156, 212, 250, 312)Fully IntegratedFixed Frequency Low-JitterCrystal Oscillator Clock Generator Features Benefits • 3.3 V Supply • High Speed Clock Generator Incorporating Crystal Oscillator. • Support crystal or LVCMOS input frequency at 31.25MHz, 33.33MHz and 35.42MHz • Low jitter : 318fs • LVPECL Output • Typical Power Consumption : 280mW • 24Pin QFN Package • Industrial Temperature Range • Off-the-shelf Crystal Oscillator clock generator for communications. • Generation of high frequency output clock using low cost crystal oscillator. • Easy to use low-jitter clock generator of specific fixed frequency input/output clock. • Offers wide choice : one family with 7 devices. Applications • Frequency generation for Ethernet, 1/10 Gigabit Ethernet, Fibre Channel, PCI Express, Infiniband • Mass market XO applications 1Ku / $7.00 TI Proprietary - NDA Required

  2. CDC421xxx: Competitive Analysis TI Proprietary - NDA Required Serial Link Products

  3. PLL + VCO PLL + VCO Low Jitter Clock Generation with the CDC421xxx 100 MHz 106.25 MHz 125 MHz 156.25 MHz 212.5 MHz 250 MHz 312.5 MHz LVPECL Output 100 MHz 106.25 MHz 125 MHz 156.25 MHz 212.5 MHz 250 MHz 312.5 MHz LVPECL Output 31.25 MHz 33.33 MHz 35.42 MHz LVCMOS 31.25 MHz 33.33 MHz 35.42 MHz Crystal • Key differentiating features of the CDC421xxx over competition include • 24 pin QFN package with Industrial Temperature Range • Family of 7 fixed frequency devices • Easy to use off-the-shelf clock generators covers up to 10G Ethernet • Low cost, low Jitter clock generator • Offers the CDCE421, programmable clock generator TI Proprietary - NDA Required

  4. CDCE421/CDC421xxx for Data Communications CDCE421 Programmable Version 11 MHz 1175MHz 10G Ethernet CDC421156 156.25MHz CDC421312 312.5MHz 1G Ethernet CDC421125 125MHz CDC421250 250MHz Fibre Channel CDC421106 106.25MHz CDC421212 212.50MHz PCI Express CDC421100 100.00MHz CDC421250 250MHz CDC421125 125MHz CDC421250 250MHz Inifiniband Frequency TI Proprietary - NDA Required

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