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PDF ICS83948I-01 Data sheet ( Hoja de datos )
| Número de pieza | ICS83948I-01 | |
| Descripción | 1-TO-12 DIFFERENTIAL-TO-LVCMOS FANOUT BUFFER | |
| Fabricantes | Integrated Circuit Systems | |
| Logotipo |  |
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Integrated
Circuit
Systems, Inc.
ICS83948I-01
LOW SKEW, 1-TO-12
DIFFERENTIAL-TO-LVCMOS FANOUT BUFFER
GENERAL DESCRIPTION
The ICS83948I-01 is a low skew, 1-to-12 Differ-
,&6 ential-to-LVCMOS Fanout Buffer and a member
HiPerClockS™ of the HiPerClockS™ family of High Performance
Clock Solutions from ICS. The ICS83948I-01 has
two selectable clock inputs. The CLK, nCLK pair
can accept most standard differential input levels. The
LVCMOS_CLK can accept LVCMOS or LVTTL input levels.
The low impedance LVCMOS outputs are designed to drive
www.DataShee5t40UΩ.cosmeries or parallel terminated transmission lines. The
effective fanout can be increased from 12 to 24 by utilizing
the ability of the outputs to drive two series terminated lines.
The ICS83948I-01 is characterized at 3.3V core/3.3V output.
Guaranteed output and part-to-part skew characteristics make
the ICS83948I-01 ideal for those clock distribution applications
demanding well defined performance and repeatability.
FEATURES
• 12 LVCMOS outputs
• Selectable LVCMOS clock or differential CLK, nCLK inputs
• CLK, nCLK pair can accept the following differential
input levels: LVDS, LVPECL, LVHSTL, SSTL, HCSL
• LVCMOS_CLK accepts the following input levels:
LVCMOS or LVTTL
• Maximum output frequency: 150MHz
• Output skew: 350ps (maximum)
• Part to part skew: 1.5ns (maximum)
• 3.3V core, 3.3V output
• -40°C to 85°C ambient operating temperature
• Pin compatible with the MPC948/948L
BLOCK DIAGRAM
CLK_EN
LVCMOS_CLK
CLK
nCLK
CLK_SEL
1
0
D
Q
OE
PIN ASSIGNMENT
32 31 30 29 28 27 26 25
Q0 CLK_SEL 1
LVCMOS_CLK 2
24 GND
23 Q4
Q1 CLK 3
2 2 VDDO
Q2 nCLK 4 ICS83948I-01 21 Q5
CLK_EN 5
20 GND
Q3 OE 6
19 Q6
Q4 VDD 7
GND 8
1 8 VDDO
17 Q7
Q5 9 10 11 12 13 14 15 16
Q6
Q7
Q8
32-Lead LQFP
Q9 7mm x 7mm x 1.4mm package body
Y Package
Q10 Top View
Q11
83948AYI-01
www.icst.com/products/hiperclocks.html
1
REV. A SEPTEMBER 23, 2002
1 page  
Integrated
Circuit
Systems, Inc.
ICS83948I-01
LOW SKEW, 1-TO-12
DIFFERENTIAL-TO-LVCMOS FANOUT BUFFER
PARAMETER MEASUREMENT INFORMATION
www.DataSheet4U.com
1.65V±0.15V
VDD,
VDDO
LVCMOS
GND
-1.65V±0.15V
SCOPE
Qx
3.3V OUTPUT LOAD TEST CIRCUIT
VDD
nCLK
CLK
V
PP
Cross Points
GND
DIFFERENTIAL INPUT LEVEL
V
CMR
83948AYI-01
www.icst.com/products/hiperclocks.html
5
REV. A SEPTEMBER 23, 2002
5 Page 
Integrated
Circuit
Systems, Inc.
TABLE 8. ORDERING INFORMATION
Part/Order Number
ICS83948AYI-01
ICS83948AYI-01T
Marking
ICS83948AYI01
ICS83948AYI01
ICS83948I-01
LOW SKEW, 1-TO-12
DIFFERENTIAL-TO-LVCMOS FANOUT BUFFER
Package
Count
32 Lead LQFP
250 per tray
32 Lead LQFP on Tape and Reel
1000
Temperature
-40°C to 85°C
-40°C to 85°C
www.DataSheet4U.com
While the information presented herein has been checked for both accuracy and reliability, Integrated Circuit Systems, Incorporated (ICS) assumes no responsibility for either its use
or for infringement of any patents or other rights of third parties, which would result from its use. No other circuits, patents, or licenses are implied. This product is intended for use
in normal commercial and industrial applications. Any other applications such as those requiring high reliability, or other extraordinary environmental requirements are not
recommended without additional processing by ICS. ICS reserves the right to change any circuitry or specifications without notice. ICS does not authorize or warrant any ICS product
for use in life support devices or critical medical instruments.
83948AYI-01
www.icst.com/products/hiperclocks.html
11
REV. A SEPTEMBER 23, 2002
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet ICS83948I-01.PDF ] | |
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