Datasheet > ICS40004A01L

ICS40004A01L

更新时间： 2024-11-14 11:14:27

品牌	Logo	应用领域
矽成 - ICSI		/
页数	文件大小	规格书
13页	260K
描述
FEMTOCLOCKS? CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER

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ICS40004A01L 数据手册

PRELIMINARY

ICS840004-01

Integrated

Circuit

Systems, Inc.

FEMTOCLOCKS™ CRYSTAL-TO-

LVCMOS/LVTTL FREQUENCY SYNTHESIZER

GENERAL DESCRIPTION

FEATURES

• Four LVCMOS/LVTTL outputs,

The ICS840004-01 is a 4 output LVCMOS/LVTTL

ICS

HiPerClockS™

15Ω typical output impedance

• Selectable crystal oscillator interface

or LVCMOS/LVTTL single-ended input

Synthesizer optimized to generate Ethernet

reference clock frequencies and is a member of

the HiPerClocks^TMfamily of high performance

clock solutions from ICS. Using a 25MHz, 18pF

• Output frequency Range: 56MHz - 175MHz

• VCO Range: 560MHz - 700MHz

parallel resonant crystal, the following frequencies can be

generated based on the 2 frequency select pins (F_SEL1:0):

156.25MHz, 125MHz, and 62.5MHz.The ICS840004-01 uses

ICS’ 3^rdgeneration low phase noise VCO technology and can

achieve 1ps or lower typical random rms phase jitter, easily

meeting Ethernet jitter requirements. The ICS840004-01 is

packaged in a small 20-pin TSSOP package.

• RMS phase jitter at 156.25MHz (1.875MHz - 20MHz):

0.52ps (typical) design target

Phase noise:

Offset

Noise Power

100Hz ............... -94.9 dBc/Hz

1kHz ............. -119.6 dBc/Hz

10kHz ............. -128.9 dBc/Hz

100kHz ............. -129.2 dBc/Hz

• Full 3.3V or 3.3V core/2.5V output supply mode

• 0°C to 70°C ambient operating temperature

• Available in both standard and lead-free RoHS-compliant

packages

FREQUENCY SELECT FUNCTION TABLE FOR ETHERNET FREQUENCIES

Inputs

M Divider N Divider

Value

Output Frequency

(25MHz Ref.)

M/N

Ratio Value

F_SEL1 F_SEL0

Value

6.25

156.25

125

2.5

62.5

125

BLOCK DIAGRAM

PIN ASSIGNMENT

Pullup

F_SEL0

F_SEL1

GND

Pullup:Pullup

F_SEL1:0

nXTAL_SEL

TEST_CLK

nPLL_SEL

V^DDA

V^DDO

GND

XTAL_IN

XTAL_OUT

Pulldown

nPLL_SEL

Pulldown

nXTAL_SEL

25MHz

XTAL_IN

V^DD

F_SEL1:0

OSC

0 0 ÷4

XTAL_OUT

Pulldown

ICS840004-01

20-LeadTSSOP

6.5mm x 4.4mm x 0.92mm

package body

0 1 ÷5

1 0 ÷10

1 1 ÷5

Phase

Detector

TEST_CLK

VCO

G Package

TopView

M = ÷25 (fixed)

Pulldown

The Preliminary Information presented herein represents a product in prototyping or pre-production. The noted characteristics are based on

initial product characterization. Integrated Circuit Systems, Incorporated (ICS) reserves the right to change any circuitry or specifications

without notice.

840004AG-01

www.icst.com/products/hiperclocks.html

REV.B JANUARY 3, 2006

12 3 4 5 6 7...13

中文翻译

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与ICS40004A01L相关器件

型号	品牌	获取价格	描述	数据表
ICS40004A11L	ICSI	获取价格	FEMTOCLOCKS? CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER
ICS40004AI01	IDT	获取价格	FEMTOCLOCKS⑩ CRYSTAL-TOLVCMOS/LVTTL FREQUENCY
ICS4002AI01L	IDT	获取价格	FEMTOCLOCKS CRYSTAL-TOLVDS FREQUENCY SYNTHESIZER
ICS4002AI01L	ICSI	获取价格	FEMTOCLOCKS⑩ CRYSTAL-TO-LVDS FREQUENCY SYNTHE
ICS-40180	TDK	获取价格	MEMS麦克风(麦克风)
ICS-40181	TDK	获取价格	MEMS麦克风(麦克风)
ICS-40212	TDK	获取价格	MEMS麦克风(麦克风)
ICS-40300	TDK	获取价格	MEMS麦克风(麦克风)
ICS-40310	TDK	获取价格	MEMS麦克风(麦克风)
ICS-40618	TDK	获取价格	MEMS麦克风(麦克风)

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