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813N252AKI-04LF

Description
IC vcxo attenuator/mult 32vfqfpn
Categorysemiconductor    Analog mixed-signal IC   
File Size243KB,24 Pages
ManufacturerIDT (Integrated Device Technology, Inc.)
Websitehttp://www.idt.com/
Environmental Compliance  
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IC vcxo attenuator/mult 32vfqfpn

813N252AKI-04LF Parametric

Parameter NameAttribute value
Datasheets
ICS813N252I-04
Product Photos
32-VFQFN Exposed Pad
Standard Package490
CategoryIntegrated Circuits (ICs)
FamilyClock/Timing - Clock Generators, PLLs, Frequency Synthesizers
PackagingTray
Type*
PLLYes
InpuHCSL, LVDS, LVHSTL, LVPECL, SSTL
OutpuLVDS, LVPECL
Number of Circuits1
Ratio - InpuOutpu
Differential - InpuOutpu
Frequency - Max312.5MHz
Divider/MultiplieYes/N
Voltage - Supply3.135 V ~ 3.465 V
Operating Temperature-40°C ~ 85°C
Mounting TypeSurface Mou
Package / Case32-VFQFN Exposed Pad
Supplier Device Package32-VFQFPN (5x5)
Dynamic CatalogClock Generators
Other Names800-2671ICS813N252AKI-04LFICS813N252AKI-04LF-NDICS813N252AKI04LF
VCXO Jitter Attenuator &
FemtoClock
®
NG Multiplier
ICS813N252I-04
DATA SHEET
General Description
The ICS813N252I-04 is a PLL based synchronous multiplier that is
optimized for PDH or SONET to Ethernet clock jitter attenuation and
frequency translation. The device contains two internal frequency
multiplication stages that are cascaded in series. The first stage is a
VCXO PLL that is optimized to provide reference clock jitter
attenuation. The second stage is a FemtoClock
®
NG frequency
multiplier that provides the low jitter, high frequency Ethernet output
clock that easily meets Gigabit and 10 Gigabit Ethernet jitter
requirements. Pre-divider and output divider multiplication ratios are
selected using device selection control pins. The multiplication ratios
are optimized to support most common clock rates used in PDH,
SONET and Ethernet applications. The VCXO requires the use of an
external, inexpensive pullable crystal. The VCXO uses external
passive loop filter components which allows configuration of the PLL
loop bandwidth and damping characteristics. The device is
packaged in a space-saving 32-VFQFN package and supports
industrial temperature range.
Features
Fourth generation FemtoClock® Next Generation (NG)
technology
One LVPECL output pair and one LVDS output pair
Each output supports independent frequency selection at 25MHz,
125MHz, 156.25MHz and 312.5MHz
Two differential inputs support the following input types: LVPECL,
LVDS, LVHSTL, SSTL, HCSL
Accepts input frequencies from 8kHz to 155.52MHz including
8kHz, 1.544MHz, 2.048MHz, 19.44MHz, 25MHz, 77.76MHz,
125MHz and 155.52MHz
Attenuates the phase jitter of the input clock by using a low-cost
pullable fundamental mode VCXO crystal
VCXO PLL bandwidth can be optimized for jitter attenuation and
reference tracking using external loop filter connection
FemtoClock NG frequency multiplier provides low jitter, high
frequency output
Absolute pull range: 100ppm
FemtoClock NG VCO frequency: 625MHz
RMS phase jitter @ 125MHz, using a 25MHz crystal
(12kHz – 20MHz): 0.3ps (typical)
3.3V supply voltage
-40°C to 85°C ambient operating temperature
Available in lead-free (RoHS 6) package
Pin Assignment
XTAL_OUT
XTAL_IN
nCLK0
CLK0
nCLK1
CLK1
V
CCX
32 31 30 29 28 27 26 25
LF1
LF0
1
2
24
V
EE
V
CC
23 nQB
22
21
QB
V
CCO
ISET 3
V
EE
4
CLK_SEL
V
CC
5
6
20 nQA
19 QA
18
17
9
PDSEL_2
RESERVED 7
V
EE
8
10 11 12 13 14 15 16
ODBSEL_1
ODBSEL_0
ODASEL_1
PDSEL_1
PDSEL_0
V
CC
V
CCA
V
EE
ODASEL_0
ICS813N252I-04
32 Lead VFQFN
5mm x 5mm x 0.925mm package body
K Package
Top View
ICS813N252AKI-04 REVISION A MAY 24, 2011
1
©2011 Integrated Device Technology, Inc.

813N252AKI-04LF Related Products

813N252AKI-04LF 813N252AKI-04LFT
Description IC vcxo attenuator/mult 32vfqfpn IC vcxo attenuator/mult 32vfqfpn
Standard Package 490 2,500
Category Integrated Circuits (ICs) Integrated Circuits (ICs)
Family Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers
Packaging Tray Tape & Reel (TR)
Type * *
PLL Yes Yes
Inpu HCSL, LVDS, LVHSTL, LVPECL, SSTL HCSL, LVDS, LVHSTL, LVPECL, SSTL
Outpu LVDS, LVPECL LVDS, LVPECL
Number of Circuits 1 1
Ratio - Inpu Outpu Outpu
Differential - Inpu Outpu Outpu
Frequency - Max 312.5MHz 312.5MHz
Divider/Multiplie Yes/N Yes/N
Voltage - Supply 3.135 V ~ 3.465 V 3.135 V ~ 3.465 V
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C
Mounting Type Surface Mou Surface Mou
Package / Case 32-VFQFN Exposed Pad 32-VFQFN Exposed Pad
Supplier Device Package 32-VFQFPN (5x5) 32-VFQFPN (5x5)
Other Names 800-2671ICS813N252AKI-04LFICS813N252AKI-04LF-NDICS813N252AKI04LF ICS813N252AKI-04LFTICS813N252AKI-04LFT-ND
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