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參數(shù)資料
| 型號： | 211BMI03 |
| 英文描述： | LOW SKEW, 1-TO-2 DIFFERENTIAL-TO-LVHSTL FANOUT BUFFER |
| 中文描述： | 低偏移，1至2差分至LVHSTL扇出緩沖器 |
| 文件頁數(shù)： | 6/14頁 |
| 文件大?。?/td> | 165K |
| 代理商： | 211BMI03 |
85211BMI-03
www.icst.com/products/hiperclocks.html
REV. B NOVEMBER 15, 2005
6
Integrated
Circuit
Systems, Inc.
ICS85211BI-03
L
OW
S
KEW
, 1-
TO
-2
D
IFFERENTIAL
-
TO
-LVHSTL F
ANOUT
B
UFFER
A
PPLICATION
I
NFORMATION
Figure 1
shows how the differential input can be wired to accept
single ended levels. The reference voltage V_REF = V
/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
F
IGURE
1. S
INGLE
E
NDED
S
IGNAL
D
RIVING
D
IFFERENTIAL
I
NPUT
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 V
DD
= 3.3V, V_REF should be 1.25V
and R2/R1 = 0.609.
W
IRING
THE
D
IFFERENTIAL
I
NPUT
TO
A
CCEPT
S
INGLE
E
NDED
L
EVELS
V_REF
R1
1K
C1
0.1u
R2
1K
Single Ended Clock Input
CLK
nCLK
VDD
O
UTPUTS
:
LVHSTL O
UTPUT
All unused LVHSTL 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.
R
ECOMMENDATIONS
FOR
U
NUSED
O
UTPUT
P
INS
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