Datasheet > ICS84021AY

ICS84021AY

更新时间： 2024-11-13 22:36:19

品牌	Logo	应用领域
矽成 - ICSI		晶体外围集成电路时钟
页数	文件大小	规格书
14页	253K
描述
260MHZ, CRYSTAL-TO-LVCMOS / LVTTL FREQUENCY SYNTHESIZER

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ICS84021AY 数据手册

ICS84021

260MHZ, CRYSTAL-TO-LVCMOS / LVTTL

FREQUENCY SYNTHESIZER

Integrated

Circuit

Systems, Inc.

GENERAL DESCRIPTION

FEATURES

• 2 LVCMOS/LVTTL outputs

The ICS84021 is a general purpose, Crystal-to-

ICS

LVCMOS/LVTTL High Frequency Synthesizer

and a member of the HiPerClockS™ family of

High Performance Clock Solutions from ICS.The

ICS84021 has a selectable TEST_CLK or crys-

• Selectable crystal oscillator interface

or LVCMOS/LVTTL TEST_CLK

HiPerClockS™

• Output frequency range: 103.3MHz to 260MHz

• Crystal input frequency range: 14MHz to 40MHz

• VCO range: 620MHz to 780MHz

tal input.The VCO operates at a frequency range of 620MHz

to 780MHz. 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 ICS84021 make it an

ideal clock source for Gigabit Ethernet, SONET, Fibre Chan-

nel 1 and 2, and Infiniband applications.

• Parallel or serial interface for programming counter

and output dividers

• RMS period jitter: 4.3ps (typical) (N ÷ 4, V_DDO= 3.3V ꢀ5)

• RMS phase jitter at 1ꢀꢀ.ꢀ2MHz, using a 38.88MHz crystal

(12KHz to 20MHz): 2.88ps (typical)

Phase noise: 1ꢀꢀ.ꢀ2MHz

Offset

Noise Power

100Hz ................. -93.7 dBc/Hz

1KHz ............... -111.3 dBc/Hz

10KHz ............... -120.4 dBc/Hz

100KHz ............... -12ꢀ.1 dBc/Hz

• Full 3.3V or mixed 3.3V core/2.ꢀV or 1.8V supply voltage

• 0°C to 70°C ambient operating temperature

• Industrial temperature information available upon request

BLOCK DIAGRAM

PIN ASSIGNMENT

OE0

OE1

VCO_SEL

XTAL_SEL

32 31 30 29 28 27 26 2ꢀ

Mꢀ

ꢀ

XTAL2

TEST_CLK

XTAL_SEL

V^DDA

XTAL1

OSC

ICS84021

XTAL2

S_LOAD

S_DATA

S_CLOCK

PLL

GND

PHASE DETECTOR

10 11 12 13 14 1ꢀ 16

÷3

÷4

÷ꢀ

÷6

VCO

÷ M

32-Lead LQFP

S_LOAD

S_DATA

S_CLOCK

nP_LOAD

7mm x 7mm x 1.4mm package body

CONFIGURATION

INTERFACE

LOGIC

TEST

Y Package

Top View

M0:M8

N0:N1

84021AY

www.icst.com/products/hiperclocks.html

REV. A NOVEMBER 7, 2003

12 3 4 5 6 7...14

中文翻译

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与ICS84021AY相关器件

型号	品牌	获取价格	描述	数据表
ICS84021AYLF	IDT	获取价格	Clock Generator, 260MHz, PQFP32, 7 X 7 MM, 1.40 MM HEIGHT, ROHS COMPLIANT, MS-026BBA, LQFP
ICS84021AYT	ICSI	获取价格	260MHZ, CRYSTAL-TO-LVCMOS / LVTTL FREQUENCY SYNTHESIZER
ICS840245AGILF	IDT	获取价格	Clock Generator, 75MHz, PDSO16, 4.40 X 5 MM, 0.92 MM HEIGHT, ROHS COMPLIANT, MO-153, TSSOP
ICS840245AGILFT	IDT	获取价格	Clock Generator, 75MHz, PDSO16, 4.40 X 5 MM, 0.92 MM HEIGHT, ROHS COMPLIANT, MO-153, TSSOP
ICS840245AGIT	IDT	获取价格	Clock Generator, 75MHz, PDSO16, 4.40 X 5 MM, 0.92 MM HEIGHT, MO-153, TSSOP-16
ICS840245IAGILF	IDT	获取价格	Clock Generator
ICS840245IAGILFT	IDT	获取价格	Clock Generator
ICS84025	ICSI	获取价格	CRYSTAL-TO-LVCMOS / LVTTL FREQUENCY SYNTHESIZER WITH FANOUT BUFFER
ICS84025DM	IDT	获取价格	Clock Generator
ICS84025DMT	IDT	获取价格	Clock Generator

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