參數(shù)資料
型號: 26B01
英文描述: LOW SKEW, 1-TO-2 DIFFERENTIAL-TO-LVCMOS/LVTTL FANOUT BUFFER
中文描述: 低偏移,1至2 DIFFERENTIAL-TO-LVCMOS/LVTTL扇出緩沖器
文件頁數(shù): 10/14頁
文件大小: 240K
代理商: 26B01
83026BMI-01
www.icst.com/products/hiperclocks.html
REV. A JANUARY 16, 2006
10
Integrated
Circuit
Systems, Inc.
ICS83026I-01
L
OW
S
KEW
, 1-
TO
-2
D
IFFERENTIAL
-
TO
-LVCMOS/LVTTL F
ANOUT
B
UFFER
F
IGURE
2C.
H
I
P
ER
C
LOCK
S CLK/nCLK I
NPUT
D
RIVEN
BY
3.3V LVPECL D
RIVER
F
IGURE
2B.
H
I
P
ER
C
LOCK
S CLK/nCLK I
NPUT
D
RIVEN
BY
3.3V LVPECL D
RIVER
F
IGURE
2D. H
I
P
ER
C
LOCK
S CLK/nCLK I
NPUT
D
RIVEN
BY
3.3V LVDS D
RIVER
3.3V
R1
50
R3
50
Zo = 50 Ohm
LVPECL
Zo = 50 Ohm
HiPerClockS
Input
CLK
nCLK
3.3V
R2
50
Zo = 50 Ohm
HiPerClockS
CLK
nCLK
3.3V
R3
R2
84
Zo = 50 Ohm
3.3V
R4
LVPECL
R1
84
3.3V
D
IFFERENTIAL
C
LOCK
I
NPUT
I
NTERFACE
The CLK /nCLK accepts LVDS, LVPECL, LVHSTL, SSTL, HCSL
and other differential signals. Both V
and V
must meet the
V
and V
input requirements. Figures 2A to 2E show inter-
face examples for the HiPerClockS CLK/nCLK input driven by
the most common driver types. The input interfaces suggested
F
IGURE
2A.
H
I
P
ER
C
LOCK
S CLK/nCLK I
NPUT
D
RIVEN
BY
ICS H
I
P
ER
C
LOCK
S LVHSTL D
RIVER
here are examples only. Please consult with the vendor of the
driver component to confirm the driver termination requirements.
For example in
Figure 2A,
the input termination applies for ICS
HiPerClockS LVHSTL drivers. If you are using an LVHSTL driver
from another vendor, use their termination recommendation.
1.8V
R2
50
Input
ICS
R1
50
LVHSTL
3.3V
Zo = 50 Ohm
Zo = 50 Ohm
HiPerClockS
CLK
nCLK
F
IGURE
2E.
H
I
P
ER
C
LOCK
S CLK/nCLK I
NPUT
D
RIVEN
BY
3.3V LVPECL D
RIVER
WITH
AC C
OUPLE
Zo = 50 Ohm
R3
Input
CLK
nCLK
3.3V
R5
100 - 200
3.3V
R2
84
3.3V
R6
100 - 200
R5,R6 locate near the driver pin.
Zo = 50 Ohm
R1
84
R4
C2
LVPECL
C1
Zo = 50 Ohm
R1
100
3.3V
LVDS_Driver
Zo = 50 Ohm
Receiver
CLK
nCLK
3.3V
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