參數(shù)資料
型號: ICS853S202AYI
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: 時鐘及定時
英文描述: 853S SERIES, LOW SKEW CLOCK DRIVER, 2 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP48
封裝: 7 X 7 MM, 1.40 MM HEIGHT, MS-026BBC, LQFP-48
文件頁數(shù): 4/20頁
文件大?。?/td> 559K
代理商: ICS853S202AYI
IDT / ICS 3.3V, 2.5V LVPECL MULTIPLEXER
12
ICS853S202AKI REV. A JANUARY 25, 2007
ICS853S202I
12:2, DIFFERENTIAL-TO-3.3V, 2.5V LVPECL MULTIPLEXER
PRELIMINARY
FIGURE 2C. HIPERCLOCKS CLK/nCLK INPUT DRIVEN BY
3.3V LVPECL DRIVER
FIGURE 2B. HIPERCLOCKS CLK/nCLK INPUT DRIVEN BY
3.3V LVPECL DRIVER
FIGURE 2D. HIPERCLOCKS CLK/nCLK INPUT DRIVEN BY
3.3V LVDS DRIVER
3.3V
R1
50
R3
50
Zo = 50 Ohm
LVPECL
Zo = 50 Ohm
HiPerClockS
CLK
nCLK
3.3V
Input
R2
50
Zo = 50 Ohm
Input
HiPerClockS
CLK
nCLK
3.3V
R3
125
R2
84
Zo = 50 Ohm
3.3V
R4
125
LVPECL
R1
84
3.3V
DIFFERENTIAL CLOCK INPUT INTERFACE
The CLK /nCLK accepts LVDS, LVPECL, LVHSTL, SSTL, HCSL
and other differential signals. Both V
SWING
and V
OH
must meet
the V
PP
and V
CMR
input requirements. Figures 2A to 2E show
interface examples for the HiPerClockS CLK/nCLK input driven
by the most common dr iver types. The input interfaces
suggested here are examples only. Please consult with the
FIGURE 2A. HIPERCLOCKS CLK/nCLK INPUT DRIVEN BY
IDT HIPERCLOCKS LVHSTL DRIVER
vendor of the driver component to confirm the driver termina-
tion requirements. For example in Figure 2A, the input
termination applies for IDT HiPerClockS LVHSTL drivers. If you
are using an LVHSTL driver from another vendor, use their
termination recommendation.
1.8V
R2
50
Input
LVHSTL Driver
ICS
HiPerClockS
R1
50
LVHSTL
3.3V
Zo = 50 Ohm
HiPerClockS
CLK
nCLK
FIGURE 2E. HIPERCLOCKS CLK/NCLK INPUT DRIVEN BY
3.3V LVPECL DRIVER WITH AC COUPLE
Zo = 50 Ohm
R3
125
HiPerClockS
CLK
nCLK
3.3V
R5
100 - 200
3.3V
R2
84
3.3V
R6
100 - 200
Input
R5,R6 locate near the driver pin.
Zo = 50 Ohm
R1
84
R4
125
C2
LVPECL
C1
Zo = 50 Ohm
R1
100
3.3V
LVDS_Driv er
Zo = 50 Ohm
Receiv er
CLK
nCLK
3.3V
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