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810251AGILF

Description
clock generators & support products vcxo and sync-E jitter attenuator
Categorysemiconductor    Other integrated circuit (IC)   
File Size352KB,15 Pages
ManufacturerIDT (Integrated Device Technology, Inc.)
Websitehttp://www.idt.com/
Environmental Compliance  
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810251AGILF Overview

clock generators & support products vcxo and sync-E jitter attenuator

810251AGILF Parametric

Parameter NameAttribute value
ManufactureIDT (Integrated Device Technology)
Product CategoryClock Generators & Support Products
RoHSYes
Package / CaseTSSOP-16
PackagingTube
Factory Pack Quantity96
VCXO and Synchronous Ethernet
Jitter Attenuator
ICS810251I
DATA SHEET
General Description
The ICS810251I is a high performance, low jitter/low phase noise
VCXO. The ICS810251i uses a low frequency and low cost pullable
crystal to achieve jitter attenuation for synchronous Ethernet
applications. The ICS810251I can take an input of either 25MHz or
125MHz and produce a single LVCMOS output of 25MHz.
The device is packaged in a small 16 lead TSSOP package and is
ideal for use on space constrained boards typically encountered in
most synchronous ethernet applications.
Features
One single-ended output (LVCMOS or LVTTL levels),
output Impedance: 15
Phase jitter attenuation by the VCXO-PLL using a 25MHz pullable
external crystal (XTAL)
Input frequencies: 25MHz or 125MHz
Output frequency: 25MHz
PLL loop bandwidth adjustable by external components
25MHz or 125MHz auto input frequency detect
Full 3.3V or 2.5V supply voltage
-40°C to 85°C ambient operating temperature
Available in lead-free (RoHS 6) package
Applications
Synchronous Ethernet v0.39a
End equipment compliant with Std IEEE 802.039a
Block Diagram
XTAL_OUT
XTAL_IN
(External loop
filter inputs.)
LF1 LF0
Pin Assignment
PLL_SEL
GND
Reserved
Q
V
DDO
OE
V
DDA
V
DD
PLL_SEL
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
CLK_IN
V
DD
LF1
LF0
GND
XTAL_IN
XTAL_OUT
GND
OE
25MHz
(25MHz or 125MHz
input frequency auto
detect)
CLK_IN
Pre-
divider
PFD
CP
VCXO
ICS810251I
1
0
Q
25MHz
(÷1 or ÷5)
VCXO-PLL
16-Lead TSSOP
4.4mm x 5.0mm x 0.925mm
package body
G Package
Top View
ICS810251AGI REVISION B OCTOBER 5, 2012
1
©2012 Integrated Device Technology, Inc.
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