參數(shù)資料
型號： ICS843252AGT
元件分類： 時鐘產(chǎn)生/分配
英文描述： 680 MHz, OTHER CLOCK GENERATOR, PDSO16
封裝： 4.40 X 5 MM, 0.92 MM HEIGHT, MO-153, TSSOP-16
文件頁數(shù)： 1/15頁
文件大?。?/td> 194K
代理商： ICS843252AGT
843252AG
www.icst.com/products/hiperclocks.html
REV. A NOVEMBER 9, 2005
1
Integrated
Circuit
Systems, Inc.
ICS843252
FEMTOCLOCKSCRYSTAL-TO-3.3V LVPECL
FREQUENCY SYNTHESIZER
PRELIMINARY
GENERAL DESCRIPTION
The ICS843252 is a 2 differential output LVPECL
Synthesizer designed to generate Ethernet refer-
ence clock frequencies and is a member of the
HiPerClocks family of high performance clock
solutions from ICS. Using a 19.53125MHz or
25MHz, 18pF parallel resonant crystal, the following frequen-
cies can be generated based on the settings of 4 frequency
select pins (SEL[A1:A0], SEL[B1:B0]): 625MHz, 312.5MHz,
156.25MHz, and 125MHz.
The two banks have their own dedicated frequency select
pins and can be independently set for the frequencies
mentioned above. The ICS843252 ICS’ 3rd generation
low phase noise VCO technology and can achieve 1ps or
lower typical rms phase jitter, easily meeting Ethernet
jitter requirements. The ICS843252 is packaged in a small
16-pin TSSOP package.
FEATURES
Two 3.3V differential LVPECL output pairs
Using a 19.53125MHz or 25MHz crystal, the two output
banks can be independently set for 625MHz, 312.5MHz,
156.25MHz or 125MHz
Crystal oscillator interface
VCO range: 490MHz to 680MHz
RMS phase jitter @ 156.25MHz (1.875MHz - 20MHz):
0.47ps (typical)
Full 3.3V supply mode
0°C to 70°C ambient operating temperature
Industrial temperature available upon request
Available in both standard and lead-free RoHS-compliant
packages
HiPerClockS
ICS
BLOCK DIAGRAM
XTAL_IN
XTAL_OUT
QA
nQA
QB
nQB
PIN ASSIGNMENT
nQB
QB
VCCO_B
SELB1
SELB0
VCCO_A
QA
nQA
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
XTAL_IN
XTAL_OUT
VEE
SELA1
SELA0
VCC
VCCA
FB_SEL
ICS843252
16-Lead TSSOP
4.4mm x 5.0mm x 0.92mm
package body
G Package
Top View
OSC
Phase
Detector
VCO
490MHz - 680MHz
Feedback Divider
2
0 0
÷1
0 1
÷2
1 0
÷3
1 1
÷4 (default)
0 0
÷2
0 1
÷4
1 0
÷5
1 1
÷8 (default)
0 = ÷25 (default)
1 = ÷32
SELA[0:1}
FB_SEL
SELB[0:1}
Pulldown
Pullup
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.
相關(guān)PDF資料
PDF描述
ICS843252AGLF 680 MHz, OTHER CLOCK GENERATOR, PDSO16
ICS843252AG 680 MHz, OTHER CLOCK GENERATOR, PDSO16
ICS843256AGILF 333.33 MHz, OTHER CLOCK GENERATOR, PDSO24
ICS843256AMI 333.33 MHz, OTHER CLOCK GENERATOR, PDSO24
ICS843256AMIT 333.33 MHz, OTHER CLOCK GENERATOR, PDSO24
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ICS843253AGI-45LF 功能描述:IC SYNTHESIZER LVPECL 16-TSSOP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發(fā)生器，PLL，頻率合成器 系列:HiPerClockS™, FemtoClock™ 標(biāo)準(zhǔn)包裝:1,000 系列:- 類型:時鐘/頻率合成器，扇出分配 PLL:- 輸入:- 輸出:- 電路數(shù):- 比率 - 輸入:輸出:- 差分 - 輸入:輸出:- 頻率 - 最大:- 除法器/乘法器:- 電源電壓:- 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:56-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:56-VFQFP-EP（8x8） 包裝:帶卷 (TR) 其它名稱:844S012AKI-01LFT
ICS843253AGI-45LFT 功能描述:IC SYNTHESIZER LVPECL 16-TSSOP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發(fā)生器，PLL，頻率合成器 系列:HiPerClockS™, FemtoClock™ 標(biāo)準(zhǔn)包裝:1,000 系列:- 類型:時鐘/頻率合成器，扇出分配 PLL:- 輸入:- 輸出:- 電路數(shù):- 比率 - 輸入:輸出:- 差分 - 輸入:輸出:- 頻率 - 最大:- 除法器/乘法器:- 電源電壓:- 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:56-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:56-VFQFP-EP（8x8） 包裝:帶卷 (TR) 其它名稱:844S012AKI-01LFT
ICS843256 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS⑩ CRYSTAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER W/INTEGRATED FANOUT BUFFER
ICS843256AG 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS⑩ CRYSTAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER W/INTEGRATED FANOUT BUFFER
ICS843256AGILF 制造商:Integrated Device Technology Inc 功能描述:PLL Frequency Synthesizer Single 24-Pin TSSOP Tube
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*