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参数资料
| 型号： | LX5249CPW |
| 厂商： | MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP |
| 元件分类： | Bus Terminator |
| 英文描述： | 9-LINE 105 ohm SCSI BUS TERMINATOR, PDSO24 |
| 封装： | ROHS COMPLIANT, PLASTIC, TSSOP-24 |
| 文件页数： | 1/6页 |
| 文件大小： | 270K |
| 代理商： | LX5249CPW |
P RE LI MIN A R Y D ATA S HEET
T HE
I NFI N ITE
P OW E R
O F
I N NOVATIO N
L IN F IN IT Y M IC RO EL E C TRO N IC S I NC .
11861 WESTERN AVENUE, GARDEN GROVE, CA. 92841, 714-898-8121, FAX: 714-893-2570
1
Copyright
2001
Rev. 0.6b,2005-08-29
UltraMAX
LX5248 / LX5249
9-L INE LVD SCSI T ERMIN A TOR
DESCRIPTION
The
LX5248/49
IC
is
a
Low
Voltage
Differential (LVD) Terminator designed to
comply with the LVD termination specification in
the SPI-2 document. The LX5248/ 49 is designed
specifically for LVD applications. Because the
LX5248/49 supports only LVD, it has lower
output capacitance than multimode terminators
such as the LX5240.
The LX5248/49 Utilizes Linfinity’s UltraMAX
Technology which delivers the ultimate in SCSI
bus performance while saving component cost and
board area. Elimination of the external capacitors
also mitigates the need for a lengthy capacitor
selection process. The individual high bandwidth
drivers also maximize channel separation and
reduces channel-to-channel noise and cross talk.
The
high-bandwidth
UltraMAX
architecture
insures ULTRA-2 performance, while providing a
clear migration path to ULTRA-3 and beyond.
When
The
LX5248/49
Is
Enabled,
The
Differential Sense (DIFFSENSE) Pin Supplies
A Voltage Between 1.2V And 1.4V.
In application, the terminator DIFFSENSE output
is connected to the system DIFFSENSE line. If
there are no single ended or HVD devices
attached to the system the LVD output will be
enabled. If the DIFFSENSE line is LOW,
indicating a single ended device, the LX5248/49
output will be HiZ. If the DIFFSENSE line is
HIGH, indicating a high voltage differential
device the LX5248/49 output will be HiZ.
The LX5248/49 IC Has A TTL Compatible
DISCONNECT Pin. The LX5248/49 is active
LOW. During sleep mode, power dissipation is
reduced to a meager 5A, while also placing all
outputs in a HI Z state. Also during sleep mode,
the DIFFSENSE function is disabled and is
placed in a HI Z state.
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
KEY FEATUR ES
2.5pF Typical Disabled Output
Capacitance
Fast Response, No External
Capacitors Required
5A Supply Current In
Disconnect Mode
20mA Supply Current During
Normal Operation
Logic Command Disconnects All
Termination Lines
Diffsense Line Driver
Current Limit And Thermal
Protection
Compliant with SP1-2 (Ultra2)
and SP1-3 (Ultra 160)
Pin Compatible With Industry
Standard Multi-Mode
Terminators
For UCC5240 Pin Compatible
LVD ONLY Terminator (See
LX5245/5246)
PRODUCT H I GHLIGHT
LX5248/49
Bus Voltage
V
OD
V
(+)
V
(-)
V
CM
100mV
0V
-100mV
NEGATED
V
OD = V(-) - V(+), Logic = 0
PACKAGE ORDER INFO
DB
Plastic TSSOP
36-Pin
PW
Plastic TSSOP
24-Pin
PW
Plastic TSSOP
28-Pin
TA (°C)
RoHS Compliant / Pb-free
Transition DC: 0535
RoHS Compliant / Pb-free
Transition DC: 0442
RoHS Compliant / Pb-free
Transition DC: 0518
0 to 70
LX5249CDBK
LX5249CPW
LX5248CPW
Note: Available in Tape & Reel. Append the letters “TR” to the part number. (i.e. LX5249CDBK-TR)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LX5249CPWK | 制造商:MICROSEMI 制造商全称:Microsemi Corporation 功能描述:9 - LINE LVD SCSI TERMINATOR |
| LX5250 | 制造商:MICROSEMI 制造商全称:Microsemi Corporation 功能描述:9-Line Multimode SCSI Terminator |
| LX-5250-16V1C20 | 制造商:MRV 制造商全称:MRV 功能描述:5250 Power Control Series |
| LX-5250-16V1L30 | 制造商:MRV 制造商全称:MRV 功能描述:5250 Power Control Series |
| LX-5250-16V2C20 | 制造商:MRV 制造商全称:MRV 功能描述:5250 Power Control Series |
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