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PDF LX5115 Data sheet ( Hoja de datos )
| Número de pieza | LX5115 | |
| Descripción | ULTRA 9-CHANNEL SCSI TERMINATOR | |
| Fabricantes | LINFINITY | |
| Logotipo |  |
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T H E I N F I N I T E P O W E R O F I N N O VAT I O N
L I N D O C #: 5115
UltraMAXTM
LX5115
ULTRA 9-CHANNEL SCSI TERMINATOR
PR O D U C T I O N D ATA S H E E T
DESCRIPTION
The LX5115 SCSI terminator is part of Linfinity's
UltraMAX family of high-performance, adaptive,
non-linear mode SCSI products, which are de-
signed to deliver true UltraSCSI performance in
SCSI applications. The low voltage BiCMOS ar-
chitecture employed in its design offers superior
performance to older linear passive and active
techniques. Linfinity's UltraMAX architecture
employs high-speed adaptive elements for each
channel, thereby providing the fastest response
possible — typically 35MHz, which is 100 times
faster than the older linear regulator/terminator
approach used by other manufacturers. Products
using this older linear regulator approach have
bandwidths which are dominated by the output
capacitor and which are limited to 500KHz (see
further discussion in the Functional Description
section). The UltraMAX architecture also eliminates
the output compensation capacitor typical in earlier
terminator designs. Each is approved for use with
SCSI-1, -2, -3, UltraSCSI and beyond — providing
the highest performance alternative available to-
day.
Another key improvement offered by the
LX5115 lies in its ability to insure reliable, error-
free communications even in systems which do
not adhere to recommended SCSI hardware design
guidelines, such as the use of improper cable
lengths and impedances. Frequently, this situation
is not controlled by the peripheral or host designer
and, when problems occur, they are the first to
be made aware of the problem. The LX5115
architecture is much more tolerant of marginal
system integrations.
Recognizing the needs of portable and
configurable peripherals, the LX5115 has a TTL
compatible sleep/disable mode. Quiescent
current is typically 150µA in this mode, while the
output capacitance is also less than 3pF. The
obvious advantage of extended battery life for
portable systems is inherent in the product's sleep-
mode feature. Additionally, the disable function
permits factory-floor or production-line
configurability, reducing inventory and product-
line diversity costs. Field configurability can also
be accomplished without physically removing
components which, often times results in field
returns due to mishandling.
Reduced component counts is also inherent in
the LX5115 architecture. Traditional termination
techniques require large stabilization and transient
protection capacitors of up to 20µF in value and
size. The LX5115 architecture does not require
these components, allowing all the cost savings
associated with inventory, board space, assembly,
reliability, and component costs.
NOTE: For current data & package dimensions, visit our web site: http://www.linfinity.com.
KEY FEATURES
s ULTRA-FAST RESPONSE FOR FAST-20
SCSI APPLICATIONS
s 35MHz CHANNEL BANDWIDTH
s LESS THAN 3pF OUTPUT CAPACITANCE
s SLEEP-MODE CURRENT OF 150µA
s NO EXTERNAL COMPENSATION
CAPACITORS
s IMPLEMENTS 8-BIT OR 16-BIT (WIDE)
APPLICATIONS
s COMPATIBLE WITH ACTIVE NEGATION
DRIVERS (37mA / CHANNEL)
s COMPATIBLE WITH PASSIVE AND
ACTIVE TERMINATIONS
s APPROVED FOR USE WITH SCSI 1, 2, 3
AND ULTRA SCSI
s HOT SWAP COMPATIBLE
s PIN-FOR-PIN COMPATIBLE WITH
DS21S07A / 2105
PRODUCT HIGHLIGHT
R E C E I V I N G W AV E F O R M - 2 0 M H Z
D R I V I N G W AV E F O R M - 2 0 M H Z
Copyright © 1997
Rev. 1.1 12/97
TJ (°C)
0 to 70
Receiver
Driver
LX5115
1 Meter, AWG 28
LX5115
LX5268
LX5268
PACKAGE ORDER INFORMATION
D
Plastic SOIC
16-pin
DW
Plastic
16-pin
SOWB
PWP
Plastic TSSOP
20-pin, Power
LX5115CD
LX5115CDW
LX5115CPWP
Note: All surface-mount packages are available in Tape & Reel.
Append the letter "T" to part number. (i.e. LX5115CDWT)
NOTE:
For An In-Depth
Discussion On Applying
SCSI, Request Linfinity
Application Note:
"Understanding The Single-
Ended SCSI Bus"
LINFINITY MICROELECTRONICS INC.
11861 WESTERN AVENUE, GARDEN GROVE, CA. 92841, 714-898-8121, FAX: 714-893-2570
1
1 page | ||
| Páginas | Total 4 Páginas | |
| PDF Descargar | [ Datasheet LX5115.PDF ] | |
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