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AD9510 Datasheet(PDF) 1 Page - Analog Devices

No. de Pieza. AD9510
Descripción  1.2 GHz Clock Distribution IC, PLL Core, Dividers, Delay Adjust, Eight Outputs
Descarga  60 Pages
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Fabricante  AD [Analog Devices]
Página de inicio  http://www.analog.com
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AD9510 Datasheet(HTML) 1 Page - Analog Devices

 
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1.2 GHz Clock Distribution IC, PLL Core,
Dividers, Delay Adjust, Eight Outputs
AD9510
Rev. A
Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibility is assumed by Analog Devices for its use, nor for any
infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
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 phase noise phase-locked loop core
Reference input frequencies to 250 MHz
Programmable dual-modulus prescaler
Programmable charge pump (CP) current
Separate CP supply (VCPS) extends tuning range
Two 1.6 GHz, differential clock inputs
8 programmable dividers, 1 to 32, all integers
Phase select for output-to-output coarse delay adjust
4 independent 1.2 GHz LVPECL outputs
Additive output jitter 225 fs rms
4 independent 800 MHz/250 MHz LVDS/CMOS clock outputs
Additive output jitter 275 fs rms
Fine delay adjust on 2 LVDS/CMOS outputs
Serial control port
Space-saving 64-lead LFCSP
APPLICATIONS
Low jitter, low phase noise clock distribution
Clocking high speed ADCs, DACs, DDSs, DDCs, DUCs, MxFEs
High performance wireless transceivers
High performance instrumentation
Broadband infrastructure
FUNCTIONAL BLOCK DIAGRAM
R DIVIDER
N DIVIDER
PHASE
FREQUENCY
DETECTOR
CHARGE
PUMP
PLL
SETTINGS
CLK2
STATUS
CLK2B
PROGRAMMABLE
DIVIDERS AND
PHASE ADJUST
OUT7
OUT7B
LVDS/CMOS
/1, /2, /3... /31, /32
OUT6
OUT6B
LVDS/CMOS
/1, /2, /3... /31, /32
OUT0
OUT0B
LVPECL
/1, /2, /3... /31, /32
OUT1
OUT1B
LVPECL
/1, /2, /3... /31, /32
OUT2
OUT2B
LVPECL
/1, /2, /3... /31, /32
OUT3
OUT3B
LVPECL
/1, /2, /3... /31, /32
OUT4
OUT4B
LVDS/CMOS
/1, /2, /3... /31, /32
OUT5
OUT5B
LVDS/CMOS
/1, /2, /3... /31, /32
ΔT
ΔT
CLK1
CLK1B
REFIN
REFINB
FUNCTION
SCLK
SDIO
SDO
CSB
SERIAL
CONTROL
PORT
CP
CPRSET
DISTRIBUTION
REF
SYNCB,
RESETB
PDB
RSET
AD9510
GND
VS
VCP
PLL
REF
Figure 1.
GENERAL DESCRIPTION
The AD9510 provides a multi-output clock distribution
function along with an on-chip PLL core. The design emphasizes
low jitter and phase noise to maximize data converter
performance. Other applications with demanding phase noise
and jitter requirements also benefit from this part.
The PLL section consists of a programmable reference divider
(R); a low noise phase frequency detector (PFD); a precision
charge pump (CP); and a programmable feedback divider (N).
By connecting an external VCXO or VCO to the CLK2/CLK2B
pins, frequencies up to 1.6 GHz may be synchronized to the
input reference.
There are eight independent clock outputs. Four outputs are
LVPECL (1.2 GHz), and four are selectable as either LVDS
(800 MHz) or CMOS (250 MHz) levels.
Each output has a programmable divider that may be bypassed
or set to divide by any integer up to 32. The phase of one clock
output relative to another clock output may be varied by means
of a divider phase select function that serves as a coarse timing
adjustment. Two of the LVDS/CMOS outputs feature
programmable delay elements with full-scale ranges up to 10 ns
of delay. This fine tuning delay block has 5-bit resolution, giving
32 possible delays from which to choose for each full-scale
setting.
The AD9510 is ideally suited for data converter clocking
applications where maximum converter performance is
achieved by encode signals with subpicosecond jitter.
The AD9510 is available in a 64-lead LFCSP and can be
operated from a single 3.3 V supply. An external VCO, which
requires an extended voltage range, can be accommodated
by connecting the charge pump supply (VCP) to 5.5 V. The
temperature range is −40°C to +85°C.


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