ICS8442I datasheet, PDF - EEWORLD Datasheet

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ICS8442I: Description700 MHz, OTHER CLOCK GENERATOR, PQFP32; Categorysemiconductor The embedded processor and controller; File Size172KB，15 Pages; ManufacturerICS ( IDT ); Websitehttp://www.icst.com

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ICS8442I Overview

700 MHz, OTHER CLOCK GENERATOR, PQFP32

ICS8442I Parametric

Parameter Name	Attribute value
Number of functions	1
Number of terminals	32
Maximum operating temperature	85 Cel
Minimum operating temperature	-40 Cel
Maximum supply/operating voltage	3.46 V
Minimum supply/operating voltage	3.14 V
Rated supply voltage	3.3 V
Processing package description	7 X 7 MM, 1.40 MM HEIGHT, ROHS COMPLIANT, MS-026, LQFP-32
Lead-free	Yes
EU RoHS regulations	Yes
state	TRANSFERRED
packaging shape	SQUARE
Package Size	FLATPACK, LOW PROFILE
surface mount	Yes
Terminal form	GULL WING
Terminal spacing	0.8000 mm
terminal coating	MATTE TIN
Terminal location	QUAD
Packaging Materials	PLASTIC/EPOXY
Temperature level	INDUSTRIAL
Microprocessor type	OTHER CLOCK GENERATOR
Maximum FCLK output frequency	700 MHz
Rated master clock crystal frequency	25 mHz

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Integrated

Circuit

Systems, Inc.

ICS8442I

700MH

, C

RYSTAL

SCILLATOR

-D

IFFERENTIAL

LVDS F

REQUENCY

YNTHESIZER

EATURES

•

Dual differential LVDS outputs

•

Selectable crystal oscillator interface or

LVCMOS/LVTTL TEST_CLK

•

Output frequency range: 31.25MHz to 700MHz

•

Crystal input frequency range: 10MHz to 25MHz

•

VCO range: 250MHz to 700MHz

•

Parallel or serial interface for programming counter

and output dividers

•

RMS period jitter: 3.5ps (typical)

•

Cycle-to-cycle jitter: 18ps (typical)

•

3.3V supply voltage

•

-40°C to 85°C ambient operating temperature

ENERAL

ESCRIPTION

The ICS8442I is a general purpose, dual output

Crystal-to-Differential LVDS High Frequency

HiPerClockS™

Synthesizer and a member of the HiPerClockS™

family of High Performance Clock Solutions from

ICS. The ICS8442I has a selectable TEST_CLK

or crystal input. The TEST_CLK input accepts LVCMOS or

LVTTL input levels and translates them to LVDS levels. The

VCO operates at a frequency range of 250MHz to 700MHz.

The VCO frequency is programmed in steps equal to the value

of the input reference or crystal frequency. The VCO and output

frequency can be programmed using the serial or parallel

interface to the configuration logic. The low phase noise

characteristics of the ICS8442I makes it an ideal clock source

for Gigabit Ethernet and Sonet applications.

ICS

LOCK

IAGRAM

VCO_SEL

SSIGNMENT

VCO_SEL

nP_LOAD

XTAL_IN

XTAL_SEL

TEST_CLK

XTAL_IN

OSC

XTAL_OUT

32 31 30 29 28 27 26 25

9 10 11 12 13 14 15 16

TEST

FOUT1

nFOUT1

FOUT0

nFOUT0

GND

XTAL_OUT

TEST_CLK

XTAL_SEL

DDA

S_LOAD

S_DATA

S_CLOCK

PLL

PHASE DETECTOR

VCO

FOUT0

nFOUT0

FOUT1

nFOUT1

GND

ICS8442I

S_LOAD

S_DATA

S_CLOCK

nP_LOAD

M0:M8

N0:N1

CONFIGURATION

INTERFACE

LOGIC

TEST

32-Lead LQFP

7mm x 7mm x 1.4mm package body

Y Package

Top View

8442AYI

www.icst.com/products/hiperclocks.html

REV. C MAY 10, 2005

ICS8442I Related Products

	ICS8442I	ICS8442AYI	ICS8442AYILF	ICS8442AYIT	ICS8442AYILFT
Description	700 MHz, OTHER CLOCK GENERATOR, PQFP32	700 MHz, OTHER CLOCK GENERATOR, PQFP32	700 MHz, OTHER CLOCK GENERATOR, PQFP32	700 MHz, OTHER CLOCK GENERATOR, PQFP32	700 MHz, OTHER CLOCK GENERATOR, PQFP32
Number of functions	1	1	1	1	1
Number of terminals	32	32	32	32	32
Maximum operating temperature	85 Cel	85 Cel	85 Cel	85 Cel	85 Cel
Minimum operating temperature	-40 Cel	-40 Cel	-40 Cel	-40 Cel	-40 Cel
Maximum supply/operating voltage	3.46 V	3.46 V	3.46 V	3.46 V	3.46 V
Minimum supply/operating voltage	3.14 V	3.14 V	3.14 V	3.14 V	3.14 V
Rated supply voltage	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V
Processing package description	7 X 7 MM, 1.40 MM HEIGHT, ROHS COMPLIANT, MS-026, LQFP-32	7 X 7 MM, 1.40 MM HEIGHT, ROHS COMPLIANT, MS-026, LQFP-32	7 X 7 MM, 1.40 MM HEIGHT, ROHS COMPLIANT, MS-026, LQFP-32	7 X 7 MM, 1.40 MM HEIGHT, ROHS COMPLIANT, MS-026, LQFP-32	7 X 7 MM, 1.40 MM HEIGHT, ROHS COMPLIANT, MS-026, LQFP-32
Lead-free	Yes	Yes	Yes	Yes	Yes
EU RoHS regulations	Yes	Yes	Yes	Yes	Yes
state	TRANSFERRED	TRANSFERRED	TRANSFERRED	TRANSFERRED	TRANSFERRED
packaging shape	SQUARE	SQUARE	SQUARE	SQUARE	SQUARE
Package Size	FLATPACK, LOW PROFILE	FLATPACK, LOW PROFILE	FLATPACK, LOW PROFILE	FLATPACK, LOW PROFILE	FLATPACK, LOW PROFILE
surface mount	Yes	Yes	Yes	Yes	Yes
Terminal form	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING
Terminal spacing	0.8000 mm	0.8000 mm	0.8000 mm	0.8000 mm	0.8000 mm
terminal coating	MATTE TIN	MATTE TIN	MATTE TIN	MATTE TIN	MATTE TIN
Terminal location	QUAD	QUAD	QUAD	QUAD	QUAD
Packaging Materials	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
Temperature level	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL
Microprocessor type	OTHER CLOCK GENERATOR	OTHER CLOCK GENERATOR	OTHER CLOCK GENERATOR	OTHER CLOCK GENERATOR	OTHER CLOCK GENERATOR
Maximum FCLK output frequency	700 MHz	700 MHz	700 MHz	700 MHz	700 MHz
Rated master clock crystal frequency	25 mHz	25 mHz	25 mHz	25 mHz	25 mHz

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