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參數(shù)資料
| 型號： | IMP5225 |
| 廠商： | IMP INC. |
| 英文描述： | 18-Line SCSI Terminator(18線SCSI終端) |
| 中文描述： | 18線SCSI端接（18線的SCSI終端） |
| 文件頁數(shù)： | 1/4頁 |
| 文件大?。?/td> | 188K |
| 代理商： | IMP5225 |
DESCRIPTION
The IMP5225 SCSI terminator is part of IMP's
family of high-performance, adaptive, non-linear
mode SCSI products, which are designed to
deliver true UltraSCSI performance in SCSI
applications. The low voltage BiCMOS
architecture employed in its design offers
superior performance to older linear passive and
active techniques. IMP's new 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 IMP architecture also eliminates
the output compensation capacitor required in
earlier terminator designs. Each is approved for
use with SCSI-1, -2, -3, UltraSCSI and beyond
— providing the highest performance alternative
available today.
PRODUCT HIGHLIGHT
PACKAGE ORDER INFORMATION
Plastic SSOP
28-pin
0 to 70
IMP5225CDB
Note: All surface-mount packages are available in Tape & Reel.
Append the letter "T" to part number. (i.e. IMP5225CDWPT)
T
A
(
°
C)
DB
IMP5225CDWP
Plastic SOWB
28-pin, Power
DWP
The IMP5225 architecture is much more
tolerant of marginal system integrations. A key
improvement offered by the IMP5225 lies in its
ability to insure reliable, error-free communica-
tions 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.
Quiescent current is typically less than
(375
μ
A) in this mode, while the output
capacitance is also less than 4pF.
Reduced component count is also inherent in
the IMP5225 architecture. Traditional
termination techniques require large stabilization
and transient protection capacitors of up to
20
μ
F in value and size. The IMP5225
architecture does not require these components,
allowing all the cost savings associated with
inventory, board space, assembly, reliability, and
component costs.
The IMP5225 is a superior pin-for-pin
replacement for the LX5205, UC5607/5611/
5617 or the DS2109.
KEY FEATURES
I
ULTRA-FAST RESPONSE FOR FAST-20 SCSI
APPLICATIONS
I
35MHz CHANNEL BANDWIDTH
I
3.5V OPERATION
I
LESS THAN 4pF OUTPUT CAPACITANCE
I
SLEEP-MODE CURRENT LESS THAN 275
μ
A
I
THERMALLY SELF LIMITING
I
NO EXTERNAL COMPENSATION
CAPACITORS
I
COMPATIBLE WITH ACTIVE NEGATION
DRIVERS (60mA / CHANNEL)
I
COMPATIBLE WITH PASSIVE AND ACTIVE
TERMINATIONS
I
APPROVED FOR USE WITH SCSI 1, 2, 3
AND ULTRA SCSI
I
HOT SWAP COMPATIBLE
I
PIN-FOR-PIN COMPATIBLE WITH LX5205,
UC5607/5611/5617 AND DS2109
1
LIN D
OC
#: 5225
IMP5225
18-Line SCSI Terminator
Receiver
LX5268
or
LX5268
1 Meter, AWG 28
Driver
DISCONNECT 1
DISCONNECT 2
DISCONNECT 1
DISCONNECT 2
IMP5225
IMP5225
D
RIVING
W
AVEFORM
- 20MH
Z
R
ECEIVING
W
AVEFORM
- 20MH
Z
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| IMP5225CDB | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Terminator |
| IMP5225CDBT | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Terminator |
| IMP5225CDWP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Terminator |
| IMP5225CDWPT | 制造商:A1PROS 制造商全稱:A1 PROs co., Ltd. 功能描述:18--Liine Pllug and Pllay SCSII Termiinattor |
| IMP5226 | 制造商:A1PROS 制造商全稱:A1 PROs co., Ltd. 功能描述:18--Liine Pllug and Pllay SCSII Termiinattor |
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