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Description

The 8V49NS0412 is a flexible clock generator with a total of four output dividers: three integer and one that is either integer or fractional. When used with an external crystal, the 8V49NS0412 generates high-performance timing geared towards the communications, datacom, and data center markets, especially for applications demanding extremely low phase noise, such as 10, 40, 100, and 400GE. The device is offered in a lead-free 64-VFQFN package and is designed to operate across the full industrial temperature range.

The 8V49NS0412 provides versatile frequency configurations and output formats and is optimized to deliver excellent phase noise performance. The device delivers an optimum combination of high clock frequency and low phase noise performance, combined with high-power supply noise rejection. Flexibility and ease of programmability allow these devices to be used in a variety of clock trees while reducing engineering effort. The device is programmable through an I²C interface and also supports I²C master capability to allow the register configuration to be read from an external EEPROM. Renesas' Timing Commander™ software tool enables a fast and easy reconfiguration of the device.

Features

  • Provides a total of 12 outputs: 11 differential (LVPECL or LVDS) and 1 LVCMOS on 3 integer and 1 integer or FracN divider
  • Supports programmable output swing – 350mV, 500mV, and 750mV
  • Output skew less than 45ps
  • Low phase jitter:
    • Integer divider (156.25MHz) : 80fs RMS phase jitter, 12kHz to 20MHz (typical)
    • Fractional divider (212.5MHz) : 133fs RMS phase jitter, 12kHz to 20MHz (typical)
  • Output frequencies from 10.91MHz up to 2.5GHz differential, 250MHz LVCMOS
  • Flexible input options: 10MHz to 50MHz fundamental-mode crystal
  • Reference input from 5MHz to 1GHz
  • Programmable loop filter is 200kHz; can be set up by an external capacitor
  • Supports external I²C EEPROM non-volatile memory for configuration
  • Select configurations may be controlled via the use of control input pins without the need for serial port access
  • LVCMOS compatible I²C serial interface gives access to additional configurations either alone or in combination with the control input pins
  • -40 °C to +85 °C ambient operating temperature
  • Packaged in 64-VFQFN, lead-free RoHS (6)
  • Supported by Timing™ Commander Software

Comparison

Applications

Type Title Date
Datasheet PDF 1.59 MB
Product Change Notice PDF 87 KB
Application Note PDF 187 KB
Product Change Notice PDF 1.26 MB
Application Note PDF 91 KB
Application Note PDF 348 KB
Application Note PDF 1.99 MB
Overview PDF 1.62 MB
Product Change Notice PDF 983 KB
Application Note PDF 406 KB
Application Note PDF 322 KB
Schematic PDF 56 KB
Technical Brief PDF 238 KB
Application Note PDF 395 KB
Application Note PDF 170 KB
Application Note PDF 133 KB
Application Note PDF 495 KB
Application Note PDF 442 KB
Application Note PDF 115 KB
Application Note PDF 233 KB
Application Note PDF 131 KB
Application Note PDF 180 KB
Application Note PDF 153 KB
Application Note PDF 160 KB
Application Note PDF 120 KB
Application Note PDF 143 KB
Application Note PDF 565 KB
Application Note PDF 136 KB
Application Note PDF 202 KB
Application Note PDF 438 KB
Application Note PDF 108 KB
31 items

Software & Tools

Software & Tools

Software title
Software type
Company
Timing Commander
Timing Commander™ is an innovative Windows™-based software platform enabling system design engineers to configure, program, and monitor sophisticated timing devices with an intuitive and flexible graphical user interface (GUI).
Code Generator Renesas
1 item

Software Downloads

Type Title Date
Software & Tools - Software
Log in to Download ZIP 18.02 MB
Software & Tools - Other
Log in to Download ZIP 2.09 MB
Software & Tools - Other
Log in to Download ZIP 2.07 MB
3 items

Boards & Kits

Models

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

Diagram of ECAD Models

Models

Type Title Date
Model - IBIS ZIP 205 KB
1 item

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