NB3H5150_16 Datasheet, PDF (1/19 Pages) ON Semiconductor – 2.5V / 3.3V Low Noise Multi-Rate Clock Generator

NB3H5150
2.5V / 3.3V Low Noise
Multi-Rate Clock Generator
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.
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 be used to load register
files into the NB3H5150 to program a variety of functions including
the frequencies and output levels of each output which can be
individually enabled and disabled.
www.onsemi.com
1 32
MARKING
DIAGRAM*
1
QFN32
MN SUFFIX
CASE 485CE
NB3H
5150
AWLYYWWG
A
= Assembly Location
WL = Wafer Lot
YY
= Year
WW = Work Week
G
= Pb−Free Package
*For additional marking information, refer to
Application Note AND8002/D.
ORDERING INFORMATION
See detailed ordering and shipping information on page 18 of
this data sheet.
Features
• Flexible Input Reference − 25 MHz Crystal, Oscillator,
• 1 ps maximum RMS Phase Jitter FRAC−N (CLK4)
Single−Ended or Differential Clock
• 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%
VDDO_n (Outputs) = 3.3 V ±5% or 2.5 V ±5% or
1.8 V ±5% (LVCMOS Only)
• Independent Power Supply for each 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 Interger−N
(CLK1:4) 156.25 MHz
155.52 MHz
• I²C / SMBus Compatible Interface
• −40°C to +85°C Ambient Operating Temperature
• Zero ppm Multiplication Error
• Fractional Divide Ratios for Implementing Arbitrary
FEC/Inverse−FEC Ratios
• For Additional Pin−strap Frequency and Output Type
Combinations, Contact ON Semiconductor Sales Office
• 32−Pin QFN, 5 mm x 5 mm
• This is a Pb−Free Device
Applications
• Telecom
• Networking
• Ethernet
• SONET
© Semiconductor Components Industries, LLC, 2016
1
March, 2016 − Rev. 3
Publication Order Number:
NB3H5150/D