IDT / ICS 0.7V HCSL FANOUT BUFFER " />
參數(shù)資料
型號: ICS85102AGILFT
廠商: IDT, Integrated Device Technology Inc
文件頁數(shù): 16/16頁
文件大?。?/td> 0K
描述: IC CLOCK BUFFER MUX 2:2 16-TSSOP
標準包裝: 2,500
系列: HiPerClockS™
類型: 扇出緩沖器(分配),多路復(fù)用器
電路數(shù): 1
比率 - 輸入:輸出: 2:2
差分 - 輸入:輸出: 是/是
輸入: HCSL,LVCMOS,LVDS,LVHSTL,LVPECL,LVTTL,SSTL
輸出: HCSL
頻率 - 最大: 500MHz
電源電壓: 2.97 V ~ 3.63 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 16-TSSOP(0.173",4.40mm 寬)
供應(yīng)商設(shè)備封裝: 16-TSSOP
包裝: 帶卷 (TR)
其它名稱: 85102AGILFT
IDT / ICS 0.7V HCSL FANOUT BUFFER
9
ICS85102AGI REV. A JUNE 10, 2008
ICS85102I
LOW SKEW, 1-TO-2, DIFFERENTIAL/LVCMOS-TO-0.7V HCSL FANOUT BUFFER
APPLICATION INFORMATION
FIGURE 2. SINGLE ENDED SIGNAL DRIVING DIFFERENTIAL INPUT
Figure 2 shows how the differential input can be wired to accept
single ended levels. The reference voltage V_BIAS = 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
WIRING THE DIFFERENTIAL INPUT TO ACCEPT SINGLE ENDED LEVELS
of R1 and R2 might need to be adjusted to position the V_BIAS
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_BIAS should be 1.25V
and R2/R1 = 0.609.
INPUTS:
CLK INPUT
For applications not requiring the use of a clock input, it can be
left floating. Though not required, but for additional protection, a
1k
Ω resistor can be tied from the CLK input to ground.
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 pull-ups or pull-downs; 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:
DIFFERENTIAL OUTPUTS
All unused differential outputs can be left floating. We recommend
that there is no trace attached. Both sides of the differential output
pair should either be left floating or terminated.
V_Bias
Single Ended Clock Input
VDD
CLK
nCLK
R1
1K
C1
0.1u
R2
1K
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