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AD9516-0 数据表(PDF) 1 Page - Analog Devices

部件名 AD9516-0
功能描述  14-Channel Clock Generator with Integrated 2.8 GHz VCO
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

AD9516-0 数据表(HTML) 1 Page - Analog Devices

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14-Channel Clock Generator with
Integrated 2.8 GHz VCO
Preliminary Technical Data
AD9516-0
Rev. prA
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2005 Analog Devices, Inc. All rights reserved.
FEATURES
Low Broadband Jitter, < 500 Femtoseconds RMS
On-Chip 2.60 GHz – 2.95 GHz VCO
Low Phase Noise, Integer-N Frequency Synthesizer
Digital or Analog PLL Lock Detect
Programmable Delays in R and N path
Supports Internal or External VCO
Two Reference Clock Inputs, A and B
Frequencies to 250 MHz
On-Chip Reference Clock Monitors
Auto and Manual Switchover, Holdover
Up to 14 Low Jitter Clock Drivers
Six LVPECL Outputs Operate to Max VCO Frequency
Four/Eight LVDS/CMOS outputs run 1 GHz/250 MHz
Programmable Dividers with Phase Offset
Programmable Delay on Four Channels
Serial Control Port
64-lead LFCSP package
APPLICATIONS
Low Jitter Clock Generation and Clock Distribution
Wired and Wireless Infrastructure
Base Stations, Optical Networks, Cable Head-Ends
Instrumentation and Imaging
Test Equipment, ATE
Clean Clocks for ADCs, DACs, DDSs, DDCs, DUCs, MxFEs
Clock Cleanup and Distribution for Line Cards
GENERAL DESCRIPTION
The AD9516-0 generates up to fourteen output clocks from a
single input reference frequency. Integrated on chip is a
complete PLL with VCO, programmable dividers, adjustable
delay blocks, and multiple output logic stages. Sub-picosecond
jitter performance is maintained using on-chip 2.60 – 2.95 GHz
VCO. The AD9516 also supports the use of an external
VCO/VCXO/VCSO up to 2.4 GHz.
The AD9516-0 features six LVPECL outputs (grouped in three
pairs), which operate up to the maximum frequency of on-chip
VCO. The remaining outputs are user-programmed as either
LVDS (four max) or CMOS (eight max). The programmable
outputs operate to 1 GHz in LVDS mode and to 250MHz in
CMOS mode.
On-chip dividers may be set to any integer value, 1-32. In
addition, the LVDS/CMOS channels use cascaded dividers for a
maximum divide ratio of 1024. Each LVDS/CMOS channel
also offers an adjustable delay from 1.5 ns to 10 ns, programmed
as 64 steps.
The AD9516-0 is available in a 64-lead LFCSP and may be
operated from a single 3.3 V supply. If an external VCO is used,
the VCP pin may be set to a max value of 5.5V. The power
supply to the LVPECL outputs may be varied to support 2.5V or
3.3V LVPECL outputs. The AD9516-0 operates over the
standard industrial range of-40°C to +85°C.
DIVIDER
DIVIDER
DIVIDER
DIVIDER
DIVIDER
6 LVPECL OUTPUTS
4/8 LVDS/CMOS OUTPUTS
DELAY
DELAY
DELAY
DELAY
VCO
÷R
÷N
PFD
CP
A
B
AD9516-0
Figure 1. Basic Block Diagram


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