参数资料
型号: ICS8732AYI-01LFT
厂商: INTEGRATED DEVICE TECHNOLOGY INC
元件分类: 时钟及定时
英文描述: 8732 SERIES, PLL BASED CLOCK DRIVER, 8 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP52
封装: 10 X 10 MM, 1.40 MM HEIGHT, ROHS COMPLIANT, MS-026, LQFP-52
文件页数: 2/16页
文件大小: 160K
代理商: ICS8732AYI-01LFT
8732AYI-01
www.icst.com/products/hiperclocks.html
REV. A AUGUST 9, 2005
10
Integrated
Circuit
Systems, Inc.
ICS8732I-01
LOW VOLTAGE, LOW SKEW
3.3V LVPECL CLOCK GENERATOR
V
CC - 2V
50
Ω
50
Ω
RTT
Z
o = 50Ω
Z
o = 50Ω
FOUT
FIN
RTT =
Z
o
1
((V
OH + VOL) / (VCC – 2)) – 2
3.3V
125
Ω
125
Ω
84
Ω
84
Ω
Z
o = 50Ω
Z
o = 50Ω
FOUT
FIN
The clock layout topology shown below is a typical termi-
nation for LVPECL outputs. The two different layouts men-
tioned are recommended only as guidelines.
FOUT and nFOUT are low impedance follower outputs
that generate ECL/LVPECL compatible outputs. Therefore,
terminating resistors (DC current path to ground) or current
sources must be used for functionality. These outputs are
FIGURE 4B. LVPECL OUTPUT TERMINATION
FIGURE 4A. LVPECL OUTPUT TERMINATION
designed to drive 50
Ω transmission lines. Matched imped-
ance techniques should be used to maximize operating
frequency and minimize signal distortion. Figures 4A and
4B show two different layouts which are recommended only
as guidelines. Other suitable clock layouts may exist and
it would be recommended that the board designers simu-
late to guarantee compatibility across all printed circuit
and clock component process variations.
TERMINATION FOR LVPECL OUTPUTS
相关PDF资料
PDF描述
ICS87332AMI-01T 87332 SERIES, LOW SKEW CLOCK DRIVER, 1 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO8
ICS87332AMI-01LFT 87332 SERIES, LOW SKEW CLOCK DRIVER, 1 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO8
ICS87339AG-01LF LOW SKEW CLOCK DRIVER, 4 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO20
ICS87339AG-01LFT LOW SKEW CLOCK DRIVER, 4 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO20
ICS87339AG-01 LOW SKEW CLOCK DRIVER, 4 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO20
相关代理商/技术参数
参数描述
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ICS87339AGI-11LF 功能描述:IC CLK GEN 3.3V LVPECL 20-TSSOP RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 时钟发生器,PLL,频率合成器 系列:HiPerClockS™ 标准包装:1,000 系列:Precision Edge® 类型:时钟/频率合成器 PLL:无 输入:CML,PECL 输出:CML 电路数:1 比率 - 输入:输出:2:1 差分 - 输入:输出:是/是 频率 - 最大:10.7GHz 除法器/乘法器:无/无 电源电压:2.375 V ~ 3.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:16-VFQFN 裸露焊盘,16-MLF? 供应商设备封装:16-MLF?(3x3) 包装:带卷 (TR) 其它名称:SY58052UMGTRSY58052UMGTR-ND
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ICS87339AM-01LF 功能描述:IC CLK GEN DIFF-LVPECL 20-SOIC RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 时钟发生器,PLL,频率合成器 系列:HiPerClockS™ 标准包装:1,000 系列:- 类型:时钟/频率合成器,扇出分配 PLL:- 输入:- 输出:- 电路数:- 比率 - 输入:输出:- 差分 - 输入:输出:- 频率 - 最大:- 除法器/乘法器:- 电源电压:- 工作温度:- 安装类型:表面贴装 封装/外壳:56-VFQFN 裸露焊盘 供应商设备封装:56-VFQFP-EP(8x8) 包装:带卷 (TR) 其它名称:844S012AKI-01LFT