參數(shù)資料
型號(hào): ICS83940DI01L
英文描述: LOW SKEW, 1-TO-18 LVPECL-TO-LVCMOS / LVTTL FANOUT BUFFER
中文描述: 低偏移,1到18的LVPECL到的LVCMOS / LVTTL扇出緩沖器
文件頁(yè)數(shù): 1/13頁(yè)
文件大?。?/td> 261K
代理商: ICS83940DI01L
83940DYI-01
www.icst.com/products/hiperclocks.html
REV. A MARCH 1, 2004
1
Integrated
Circuit
Systems, Inc.
ICS83940I-01
L
OW
S
KEW
, 1-
TO
-18
LVPECL-
TO
-LVCMOS / LVTTL F
ANOUT
B
UFFER
PRELIMINARY
G
ENERAL
D
ESCRIPTION
The ICS83940I-01 is a low skew, 1-to-18
LVPECL-to-LVCMOS/LVTTL Fanout Buffer and a
member of the
HiPerClockS family of High Per-
formance Clock Solutions from ICS. The
ICS83940I-01 has two selectable clock inputs.
The PCLK, nPCLK pair can accept LVPECL, CML or SSTL
input levels. The single ended clock input accepts LVCMOS
or LVTTL input levels. The low impedance LVCMOS/LVTTL
outputs are designed to drive 50
series or parallel termi-
nated transmission lines. The effective fanout can be increased
from 18 to 36 by utilizing the ability of the outputs to drive two
series terminated lines.
The ICS83940I-01 is characterized at full 3.3V, full 2.5V and
mixed 3.3V input and 2.5V output operating supply modes. Guar-
anteed output and part-to-part skew characteristics make the
ICS83940I-01 ideal for those clock distribution applications de-
manding well defined performance and repeatability.
B
LOCK
D
IAGRAM
P
IN
A
SSIGNMENT
HiPerClockS
ICS
32-Lead LQFP
Y Pacakge
7mm x 7mm x 1.4mm package body
Top View
32 31 30 29 28 27 26 25
9 10 11 12 13 14 15 16
1
2
3
4
5
6
7
8
24
23
22
21
20
19
18
17
Q6
Q7
Q8
V
DDO
Q9
Q10
Q11
GND
GND
GND
LVCMOS_CLK
CLK_SEL
PCLK
nPCLK
V
DD
V
DDO
V
D
Q
Q
Q
G
Q
Q
Q
G
Q
Q
Q
V
D
Q
Q
Q
ICS83940I-01
F
EATURES
18 LVCMOS/LVTTL outputs, 23
typical output impedance
Selectable LVCMOS_CLK or LVPECL clock inputs
LVCMOS_CLK supports the following input types:
LVCMOS or LVTTL
PCLK, nPCLK supports the following input types:
LVPECL, CML, SSTL
Maximum output frequency: 250MHz
Output skew: 150ps (maximum)
Part-to-part skew: 750ps (maximum)
Full 3.3V, 2.5V or mixed 3.3V, 2.5V supply modes
-40°C to 85°C ambient operating temperature
Pin compatible with the MPC940L in single supply
applications
Q0:Q17
CLK_SEL
PCLK
nPCLK
LVCMOS_CLK
0
1
18
The Preliminary Information presented herein represents a product in prototyping or pre-production. The noted characteristics are based on initial
product characterization. Integrated Circuit Systems, Incorporated (ICS) reserves the right to change any circuitry or specifications without notice.
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PDF描述
ICS83940DYI-01 LOW SKEW, 1-TO-18 LVPECL-TO-LVCMOS / LVTTL FANOUT BUFFER
ICS83940DYI-01LF LOW SKEW, 1-TO-18 LVPECL-TO-LVCMOS / LVTTL FANOUT BUFFER
ICS83940DYI-01LFT LOW SKEW, 1-TO-18 LVPECL-TO-LVCMOS / LVTTL FANOUT BUFFER
ICS83940DYI-01T LOW SKEW, 1-TO-18 LVPECL-TO-LVCMOS / LVTTL FANOUT BUFFER
ICS83940DI LOW SKEW, 1-TO-18 LVPECL-TO-LVCMOS / LVTTL FANOUT BUFFER
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ICS83940DY 制造商:ICS 制造商全稱:ICS 功能描述:LOW SKEW, 1-TO-18 LVPECL-TO-LVCMOS / LVTTL FANOUT BUFFER
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