参数资料
型号: ICS8516FYILF
厂商: IDT, Integrated Device Technology Inc
文件页数: 18/18页
文件大小: 0K
描述: IC CLK BUFF 1:16 700MHZ 48-LQFP
标准包装: 250
系列: HiPerClockS™
类型: 扇出缓冲器(分配)
电路数: 1
比率 - 输入:输出: 1:16
差分 - 输入:输出: 是/是
输入: HCSL,LVDS,LVHSTL,LVPECL,SSTL
输出: LVDS
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-LQFP
供应商设备封装: 48-TQFP(7x7)
包装: 托盘
其它名称: 8516FYILF
ICS8516FYILF-ND
ICS8516I REVISION B SEPTEMBER 10, 2009
9
2009 Integrated Device Technology, Inc.
ICS8516I Data Sheet
LOW SKEW, 1-TO-16 DIFFERENTIAL-TO-LVDS CLOCK DISTRIBUTION CHIP
APPLICATION INFORMATION
Figure 1 shows how the differential input can be wired to accept
single ended levels. The reference voltage V_REF = V
DD
/2 is
generated by the bias resistors R1, R2 and C1. This bias circuit
should be located as close as possible to the input pin. The ratio
FIGURE 1. SINGLE ENDED SIGNAL DRIVING DIFFERENTIAL INPUT
WIRING THE DIFFERENTIAL INPUT TO ACCEPT SINGLE ENDED LEVELS
of R1 and R2 might need to be adjusted to position the V_REF in
the center of the input voltage swing. For example, if the input
clock swing is only 2.5V and V
DD
= 3.3V, V_REF should be 1.25V
and R2/R1 = 0.609.
INPUTS:
CLK/nCLK INPUTS
For applications not requiring the use of the differential input,
both CLK and nCLK can be left floating. Though not required, but
for additional protection, a 1k
Ω resistor can be tied from CLK to
ground.
LVCMOS CONTROL PINS
All control pins have internal pullups or pulldowns; additional
resistance is not required but can be added for additional
protection. A 1k
Ω resistor can be used.
RECOMMENDATIONS FOR UNUSED INPUT AND OUTPUT PINS
OUTPUTS:
LVDS OUTPUTS
All unused LVDS outputs should be terminated with 100
Ω resistor
between the differential pair.
V_REF
Single Ended Clock Input
VDD
CLK
nCLK
R1
1K
C1
0.1u
R2
1K
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