參數(shù)資料
型號: ICS83948AYI-147LF
廠商: IDT, Integrated Device Technology Inc
文件頁數(shù): 3/17頁
文件大?。?/td> 0K
描述: IC CLOCK BUFFER MUX 2:12 32-LQFP
標準包裝: 250
系列: HiPerClockS™
類型: 扇出緩沖器(分配),多路復用器
電路數(shù): 1
比率 - 輸入:輸出: 2:12
差分 - 輸入:輸出: 是/無
輸入: HCSL,LVCMOS,LVDS,LVHSTL,LVPECL,LVTTL,SSTL
輸出: LVCMOS,LVTTL
頻率 - 最大: 350MHz
電源電壓: 2.375 V ~ 3.465 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 32-LQFP
供應(yīng)商設(shè)備封裝: 32-TQFP(7x7)
包裝: 托盤
其它名稱: 83948AYI-147LF
ICS83948I-147
LOW SKEW, 1-TO-12 DIFFERENTIAL-TO-LVCMOS/LVTTL FANOUT BUFFER
IDT / ICS LVCMOS/LVTTL CLOCK GENERATOR
11
ICS83948AYI-147 REV. D NOVEMBER 1, 2012
Application Information
Wiring the Differential Input to Accept Single Ended Levels
Figure 1 shows how the differential input can be wired to accept
single ended levels. The reference voltage V_REF = VDD/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 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 VDD = 3.3V, V_REF should be 1.25V and
R2/R1 = 0.609.
Figure 1. Single-Ended Signal Driving Differential Input
Recommendations for Unused Input and Output Pins
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
resistor can be tied from CLK to
ground.
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
resistor can be tied from the CLK input 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
resistor can be used.
Outputs:
LVCMOS Outputs
All unused LVCMOS output can be left floating. There should be no
trace attached.
V_REF
Single Ended Clock Input
VDD
CLK
nCLK
R1
1K
C1
0.1u
R2
1K
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ICS83948AYI-147LFT 功能描述:IC CLOCK BUFFER MUX 2:12 32-LQFP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘緩沖器,驅(qū)動器 系列:HiPerClockS™ 標準包裝:74 系列:- 類型:扇出緩沖器(分配) 電路數(shù):1 比率 - 輸入:輸出:1:10 差分 - 輸入:輸出:是/是 輸入:HCSL, LVCMOS, LVDS, LVPECL, LVTTL 輸出:HCSL,LVDS 頻率 - 最大:400MHz 電源電壓:3 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:32-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:32-QFN(5x5) 包裝:管件
ICS83948AYI-147T 制造商:Integrated Device Technology Inc 功能描述:
ICS83948AYIL 制造商:ICS 制造商全稱:ICS 功能描述:LOW SKEW, 1-TO-12 DIFFERENTIAL-TO-LVCMOS FANOUT BUFFER
ICS83948AYILF 功能描述:IC CLOCK BUFFER MUX 2:12 32-LQFP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘緩沖器,驅(qū)動器 系列:HiPerClockS™ 標準包裝:74 系列:- 類型:扇出緩沖器(分配) 電路數(shù):1 比率 - 輸入:輸出:1:10 差分 - 輸入:輸出:是/是 輸入:HCSL, LVCMOS, LVDS, LVPECL, LVTTL 輸出:HCSL,LVDS 頻率 - 最大:400MHz 電源電壓:3 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:32-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:32-QFN(5x5) 包裝:管件
ICS83948AYILFT 功能描述:IC CLOCK BUFFER MUX 2:12 32-LQFP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘緩沖器,驅(qū)動器 系列:HiPerClockS™ 標準包裝:74 系列:- 類型:扇出緩沖器(分配) 電路數(shù):1 比率 - 輸入:輸出:1:10 差分 - 輸入:輸出:是/是 輸入:HCSL, LVCMOS, LVDS, LVPECL, LVTTL 輸出:HCSL,LVDS 頻率 - 最大:400MHz 電源電壓:3 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:32-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:32-QFN(5x5) 包裝:管件