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概览

描述

The 841S104I-02 is a PLL-based clock synthesizer specifically designed for Ethernet and SONET™ Clock applications. This device generates either a 156.25MHz or 155.52MHz differential HCSL clock from an input reference of either 25MHz or 19.44MHz. The input reference may be derived from an external source or by the addition of a 25MHz or a 19.44MHz crystal to the on-chip crystal oscillator. An external reference may be applied to the XTAL_IN pin with the XTAL_OUT pin left floating. An I2C bus interface is used to enable or disable each individual clock output. The 841S104I-02 is available in a lead-free 24-Lead package.

特性

  • Four 0.7V current mode differential HCSL output pairs
  • Crystal oscillator interface: 25MHz or 19.44MHz
  • Output frequency: 156.25MHz or 155.52MHz
  • RMS phase jitter @ 156.25MHz (12kHz – 20MHz): 0.691ps (typical)
  • Cycle-to-cycle jitter: 25ps (maximum)
  • I2C support with readback capabilities up to 400kHz
  • 3.3V operating supply mode
  • -40°C to 85°C ambient operating temperature
  • Available lead-free (RoHS 6) package

产品对比

应用

文档

设计和开发

模型

ECAD 模块

点击产品选项表中的 CAD 模型链接,查找 SamacSys 中的原理图符号、PCB 焊盘布局和 3D CAD 模型。如果符号和模型不可用,可直接在 SamacSys 请求该符号或模型。

Diagram of ECAD Models

模型

类型 文档标题 日期
模型 - IBIS ZIP 75 KB
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