NB3H5150中文资料时钟生成器，多速率，低噪声，2.5V / 3.3V数据手册ONSEMI规格书

描述 Description

The NB3H5150 is a high performance Multi−Rate Clock generator
which simultaneously synthesizes up to four different frequencies
from a single PLL using a 25 MHz input reference. The reference
frequency can be provided by a crystal, LVCMOS/LVTTL, LVPECL,
HCSL or LVDS differential signals. The REFMODE pin will select
the reference source.
Three output banks (CLK1A/CLK1B to CLK3A/CLK3B) produce
user selectable frequencies of: 25 MHz, 33.33 MHz, 50 MHz,
100 MHz, 125 MHz, or 156.25 MHz and have ultra−low noise/jitter
performance of less than 0.3 ps.
The fourth output bank (CLK4A/CLK4B) can produce the
following integer and FRAC−N frequencies in pin−strap mode:
33.33 MHz, 66.66 MHz, 100 MHz, 106.25 MHz, 125 MHz,
133.33 MHz, 155.52 MHz, 156.25 MHz or 161.1328 MHz.
More programmable frequencies are available via the I2C interface
with jitter performance of less than 1 ps. Detailed registered
descriptions will be available in a future application note.
Each output block can create two single−ended in−phase LVCMOS
outputs or one differential pair of LVPECL outputs.
Each of the four output blocks is independently powered by a
separate VDDO, 2.5 V/3.3 V for LVPECL, 1.8 V/2.5 V/3.3 V for
LVCMOS.
The serial (I2C and SMBUS) interface can program a variety of
functions including the frequencies and output levels of each divider
block which can be individually enabled and disabled.

特性 Features

• Flexible Input Reference − 25 MHz Crystal, Oscillator, Single−Ended or Differential
• Four Independent User−Programmable Clock Frequencies from 25 MHz to 250 MHz
• Independently Configurable Outputs:
• Up to Eight LVCMOS Single Ended outputs or,
• Up to Four Differential LVPECL Outputs or any combination of LVCMOS and LVPECL
• Flexible Input/Core and Output Power Supply Combinations:
• VDD (Core) = 3.3 V ±5% or 2.5 V ±5%
• VDDOn (Outputs) = 3.3 V ±5% or 2.5 V ±5% or 1.8 V ±5% (LVCMOS Only)
• Independent Power Supply per Output Bank
• 300 ps max Output Rise and Fall Times, LVPECL
• 1000 ps max Output Rise and Fall Times, LVCMOS
• 300 fs maximum RMS Phase Jitter (CLK1:4) Integer-N
• 1 ps maximum RMS Phase Jitter (CLK4) Frac-N
• I2C / SMBus Compatible Interface
• −40°C to +85°C Ambient Operating Temperature
• 32−Pin QFN, 5 mm x 5 mm
• Zero ppm Multiplication Error
• Fractional Divide Ratios for Implementing Arbitrary FEC/Inverse−FEC Ratios
• This is a Pb−Free Device

应用 Application

• Telecom
• Networking
• Ethernet
• SONET
• Solid State Hard Drive

简介

NB3H5150属于开发板套件编程器的评估演示板及套件。由制造生产的NB3H5150评估和演示板及套件该系列产品提供了一种方便的方法，在经过验证的实施环境中评估某些重点器件的性能或特性。评估方法通常有完善的文档说明，并且视乎具体情况由评估软件提供支持。产品通常由印刷电路板组成，板上已装有重点器件以及必要或有用的支持元器件，另外也可能包括其他组件，例如电缆或电源。对于数量特别多或类别独特的器件类别(如 ADC、DAC 和开关模式电源)，评估平台可组合为一个单独的产品系列。