参数资料
型号: ICS85352AYILFT
厂商: IDT, Integrated Device Technology Inc
文件页数: 19/20页
文件大小: 0K
描述: IC CLOCK MUX 2:12 700MHZ 48-TQFP
标准包装: 1,000
系列: HiPerClockS™
类型: 多路复用器
电路数: 1
比率 - 输入:输出: 2:12
差分 - 输入:输出: 是/是
输入: HCSL,LVDS,LVHSTL,LVPECL,SSTL
输出: LVPECL
频率 - 最大: 700MHz
电源电压: 3.135 V ~ 3.465 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 48-TQFP 裸露焊盘
供应商设备封装: 48-PTQFP-EP(7x7)
包装: 带卷 (TR)
其它名称: 85352AYILFT
ICS85352AYI REVISION C AUGUST 3, 2010
8
2010 Integrated Device Technology, Inc.
ICS85352I Data Sheet
12 BIT, 2-TO-1, 3.3V, 2.5V LVPECL CLOCK BUFFER
Wiring the Differential Input to Accept Single-Ended Levels
Figure 1 shows how a differential input can be wired to accept single
ended levels. The reference voltage VREF = VCC/2 is generated by
the bias resistors R1 and R2. The bypass capacitor (C1) is used to
help filter noise on the DC bias. This bias circuit should be located as
close to the input pin as possible. The ratio of R1 and R2 might need
to be adjusted to position the VREF in the center of the input voltage
swing. For example, if the input clock swing is 2.5V and VCC = 3.3V,
R1 and R2 value should be adjusted to set VREF at 1.25V. The values
below are for when both the single ended swing and VCC are at the
same voltage. This configuration requires that the sum of the output
impedance of the driver (Ro) and the series resistance (Rs) equals
the transmission line impedance. In addition, matched termination at
the input will attenuate the signal in half. This can be done in one of
two ways. First, R3 and R4 in parallel should equal the transmission
line impedance. For most 50
applications, R3 and R4 can be 100.
The values of the resistors can be increased to reduce the loading for
slower and weaker LVCMOS driver. When using single-ended
signaling, the noise rejection benefits of differential signaling are
reduced. Even though the differential input can handle full rail
LVCMOS signaling, it is recommended that the amplitude be
reduced. The datasheet specifies a lower differential amplitude,
however this only applies to differential signals. For single-ended
applications, the swing can be larger, however VIL cannot be less
than -0.3V and VIH cannot be more than Vcc + 0.3V. Though some of
the recommended components might not be used, the pads should
be placed in the layout. They can be utilized for debugging purposes.
The datasheet specifications are characterized and guaranteed by
using a differential signal.
Figure 1. Recommended Schematic for Wiring a Differential Input to Accept Single-ended Levels
相关PDF资料
PDF描述
ICS85356AMILF IC CLOCK MUX 2:1 900MHZ 20-SOIC
ICS85357AG-11LF IC CLOCK MUX 4:1/2:1 20-TSSOP
ICS8535AG-31LFT IC CLOCK BUFFER MUX 2:4 20-TSSOP
ICS8535AGI-01LFT IC CLOCK BUFFER MUX 2:4 20-TSSOP
ICS8535AGI-31LFT IC CLOCK BUFFER MUX 2:4 20-TSSOP
相关代理商/技术参数
参数描述
ICS85354AK-01LF 功能描述:IC CLOCK MUX 2:1/1:2 16-VFQFPN RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 时钟缓冲器,驱动器 系列:HiPerClockS™ 标准包装:74 系列:- 类型:扇出缓冲器(分配) 电路数:1 比率 - 输入:输出:1:10 差分 - 输入:输出:是/是 输入:HCSL, LVCMOS, LVDS, LVPECL, LVTTL 输出:HCSL,LVDS 频率 - 最大:400MHz 电源电压:3 V ~ 3.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:32-VFQFN 裸露焊盘 供应商设备封装:32-QFN(5x5) 包装:管件
ICS85354AK-01LFT 功能描述:IC CLOCK MUX 2:1/1:2 16-VFQFPN RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 时钟缓冲器,驱动器 系列:HiPerClockS™ 标准包装:74 系列:- 类型:扇出缓冲器(分配) 电路数:1 比率 - 输入:输出:1:10 差分 - 输入:输出:是/是 输入:HCSL, LVCMOS, LVDS, LVPECL, LVTTL 输出:HCSL,LVDS 频率 - 最大:400MHz 电源电压:3 V ~ 3.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:32-VFQFN 裸露焊盘 供应商设备封装:32-QFN(5x5) 包装:管件
ICS85354AKLF 功能描述:IC CLOCK MUX 2:1/1:2 16-VFQFPN RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 时钟缓冲器,驱动器 系列:HiPerClockS™ 标准包装:1 系列:HiPerClockS™ 类型:扇出缓冲器(分配),多路复用器 电路数:1 比率 - 输入:输出:2:18 差分 - 输入:输出:是/无 输入:CML,LVCMOS,LVPECL,LVTTL,SSTL 输出:LVCMOS,LVTTL 频率 - 最大:250MHz 电源电压:2.375 V ~ 3.465 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:32-LQFP 供应商设备封装:32-TQFP(7x7) 包装:- 其它名称:800-1923-6
ICS85354AKLFT 功能描述:IC CLOCK MUX 2:1/1:2 16-VFQFPN RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 时钟缓冲器,驱动器 系列:HiPerClockS™ 标准包装:1 系列:HiPerClockS™ 类型:扇出缓冲器(分配),多路复用器 电路数:1 比率 - 输入:输出:2:18 差分 - 输入:输出:是/无 输入:CML,LVCMOS,LVPECL,LVTTL,SSTL 输出:LVCMOS,LVTTL 频率 - 最大:250MHz 电源电压:2.375 V ~ 3.465 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:32-LQFP 供应商设备封装:32-TQFP(7x7) 包装:- 其它名称:800-1923-6
ICS85356AGILF 功能描述:IC CLOCK MUX 2:1 900MHZ 20-TSSOP RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 时钟缓冲器,驱动器 系列:HiPerClockS™ 产品培训模块:High Bandwidth Product Overview 标准包装:1,000 系列:Precision Edge® 类型:扇出缓冲器(分配) 电路数:1 比率 - 输入:输出:1:4 差分 - 输入:输出:是/是 输入:CML,LVDS,LVPECL 输出:CML 频率 - 最大:2.5GHz 电源电压:2.375 V ~ 2.625 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)