欢迎访问ic37.com |
会员登录 免费注册
发布采购

IMP5219CDWT 参数 Datasheet PDF下载

IMP5219CDWT图片预览
型号: IMP5219CDWT
PDF下载: 下载PDF文件 查看货源
内容描述: 9 - Liine SCSII Termiinattor [9--Liine SCSII Termiinattor]
分类和应用: 接口集成电路光电二极管信息通信管理
文件页数/大小: 10 页 / 295 K
品牌: IMP [ IMP, INC ]
 浏览型号IMP5219CDWT的Datasheet PDF文件第2页浏览型号IMP5219CDWT的Datasheet PDF文件第3页浏览型号IMP5219CDWT的Datasheet PDF文件第4页浏览型号IMP5219CDWT的Datasheet PDF文件第5页浏览型号IMP5219CDWT的Datasheet PDF文件第6页浏览型号IMP5219CDWT的Datasheet PDF文件第7页浏览型号IMP5219CDWT的Datasheet PDF文件第8页浏览型号IMP5219CDWT的Datasheet PDF文件第9页  
IMP51 1 1/51 1 2
IMP52 9
D
ATA
C
OMMUNICATIONS
9-Line SCSI Terminator
The 9-channel IMP5219 SCSI terminator is part of IMP's family of high-
performance SCSI terminators that deliver true UltraSCSI performance.
The BiCMOS design offers superior performance over first generation
linear regulator/resistor based terminators.
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 termi-
nator approach. The bandwidth of terminators based on the older
regulator/resistor terminator architecture is limited to 500kHz since a
large output stabilization capacitor is required. The IMP architecture
eliminates the external output compensation capacitor and the need
for transient output capacitors while maintaining pin compatibility
with first generation designs. Reduced component count is inherent
with the IMP5219.
The IMP5219 architecture tolerates marginal system designs. A key
improvement offered by the IMP5219 lies in its ability to insure reliable,
error-free communications even in systems which do not adhere to rec-
ommended SCSI hardware design guidelines, such as improper cable
lengths and impedance. Frequently, this situation is not controlled by the
peripheral or host designer.
For portable and configurable peripherals, the IMP5219 can be placed in
a sleep mode with an active LOW disable signal. Quiescent current is
typically 375µA and output are in a high impedance state when disabled.
Key Features
Ultra-Fast response for Fast-20 SCSI applications
Hot swap compatible
35MHz channel bandwidth
3.5V operation
Less than 3pF output capacitance
Sleep-mode current less than 375µA
Thermally self limiting
No external compensation capacitors
Implements 8-bit or 16-bit (wide) applications
Compatible with active negation drivers
(60ma/channel)
x
Compatible with passive and active terminations
x
Approved for use with SCSI 1, 2, 3 and UltraSCSI
x
x
x
x
x
x
x
x
x
x
Block Diagrams
Term Power
Thermal
Limiting
Circuit
Current
Biasing
Circuit
24mA Current
Limiting Circuit
DATA OUTPUT
PIN DB (0)
2.85V
Disable Pin
1 of 9 Channels
+
1.4V
5219_01.eps
Daily Silver IMP
Data Communications
1