參數(shù)資料
型號: ICS85211AMI-01T
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: 時鐘及定時
英文描述: 85211 SERIES, LOW SKEW CLOCK DRIVER, 2 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO8
封裝: 3.90 X 4.90 MM, 1.37 MM HEIGHT, MS-012, SOIC-8
文件頁數(shù): 11/13頁
文件大小: 271K
代理商: ICS85211AMI-01T
85211AMI-01
www.icst.com/products/hiperclocks.html
REV. A NOVEMBER 1, 2005
7
Integrated
Circuit
Systems, Inc.
ICS85211I-01
LOW SKEW, 1-TO-2
DIFFERENTIAL-TO-HSTL FANOUT BUFFER
CLOCK INPUT INTERFACE
The CLK /nCLK accepts differential input signals of both V
SWING
and V
OH to meet the VPP and VCMR input requirements. Figures 3A
to 3D show interface examples for the ICS85211I-01 clock input
driven by most common driver types. The input interfaces sug-
gested here are examples only. Please consult with the vendor
FIGURE 3A. ICS85211I-01 CLK/NCLK INPUT DRIVEN BY
HIPERCLOCKS HSTL DRIVER
1.8V
R2
50
Input
LVHSTL Driver
ICS
HiPerClockS
R1
50
LVHSTL
3.3V
Zo = 50 Ohm
HiPerClockS
CLK
nCLK
of the driver components to confirm the driver termination require-
ment. For example in Figure 3, the input termination applies for
ICS HiPerClockS HSTL drivers. If you are using an HSTL driver
from another vendor, use their termination recommendation.
FIGURE 3B. ICS85211I-01 CLK/NCLK INPUT DRIVEN BY
3.3V LVPECL DRIVER (INTERFACE 1)
FIGURE 3C. ICS85211I-01 CLK/NCLK INPUT DRIVEN BY
3.3V LVPECL DRIVER (INTERFACE 2)
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
FIGURE 3D. ICS85211I-01 CLK/NCLK INPUT DRIVEN BY
3.3V LVPECL DRIVER WITH AC COUPLE
R3
125
LVPECL
R1
84
C1
R2
84
HiPerClockS
CLK
nCLK
R5,R6 locate near the driv er pin.
Zo = 50 Ohm
3.3V
C2
R4
125
R6
100-200
Zo = 50 Ohm
R5
100-200
3.3V
Input
RECOMMENDATIONS FOR UNUSED OUTPUT PINS
OUTPUTS:
HSTL OUTPUT
All unused HSTL 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.
相關(guān)PDF資料
PDF描述
ICS85211AMI-03LFT LOW SKEW CLOCK DRIVER, 2 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO8
ICS85211AMI-03 85211 SERIES, LOW SKEW CLOCK DRIVER, 2 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO8
ICS85211AMI-03LFT 85211 SERIES, LOW SKEW CLOCK DRIVER, 2 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO8
ICS85211AMILF LOW SKEW CLOCK DRIVER, 2 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO8
ICS85211AMIT 85211 SERIES, LOW SKEW CLOCK DRIVER, 2 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO8
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