LX5208CDWP Microsemi Corporation, LX5208CDWP Datasheet

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LX5208CDWP

Manufacturer Part Number
LX5208CDWP
Description
18-LINE LOW CAPACITANCE/ POWER SCSI TERMINATOR
Manufacturer
Microsemi Corporation
Datasheet
T
Copyright © 1998
Rev. 1.9
H E
The LX5208 is an eighteen-line active termi-
nator for the SCSI parallel bus. This SCSI
standard recommends active termination at
both ends of the SCSI bus.
quires a meager 60µA of supply current while
offering only 3.5pF of output capacitance.
To enter this low-power mode, the discon-
nect pin can be left open (floating) or driven
high, thereby disconnecting the terminating
resistors and placing the internal low dropout
regulator into low-power mode. In discon-
nect mode, each termination line presents
a high impedance to the SCSI bus with the
overall effect being to preserve high signal
integrity and yield subsequent reliable, error
free communications.
sumes only 800µA of current, which is the
During disconnect mode, the LX5208 re-
During normal operation, the LX5208 con-
3/98
I
N F I N I T E
R
E C E I V I N G
P
O W E R
W
AV E F O R M
F O R F U R T H E R I N F O R M A T I O N C A L L ( 7 1 4 ) 8 9 8 - 8 1 2 1
O F
D E S C R I P T I O N
LX5208
11861 W
Note: All surface-mount packages are available in Tape & Reel.
I
Append the letter "T" to part number. (i.e. LX5208CDWPT)
- 10MH
N N O V A T I O N
Receiver
ESTERN
P A C K A G E O R D E R I N F O
P R O D U C T H I G H L I G H T
lowest enabled supply current of any termi-
nator available on the market today.
Linfinity's proprietary BiCMOS low dropout
regulator architecture enables this unique
and very efficient operating characteristic.
channel output current specified to a 5%
tolerance. The maximum value of the output
current is trimmed as closely as possible to
the SCSI standard maximum specification to
give the highest possible noise margin for
fast SCSI operation. And the LX5208 sinks
up to 200mA of current making it compatible
with today's fast active negation drivers.
placement for a variety of industry products
such as the UC5601, UC5602, UC5608, and
UC5609.
0 to 70
T
The LX5208 also offers a precisely trimmed
The LX5208 is a superior, pin-for-pin re-
Z
LX5268
A
(°C)
A
1 Meter, AWG 28
VENUE
DWP
, G
ARDEN
LX5208CDWP
Plastic SOWB
28-pin, Power
LX5268
18-L
G
ROVE
P
INE
Driver
R O D U C T I O N
D
L
, CA. 92841
OW
R I V I N G
LX5208
C
APACITANCE
W
AV E F O R M
, µP
3.5pF OUTPUT CAPACITANCE DURING
DISCONNECT
60µA SUPPLY CURRENT IN DISCON-
NECT MODE
800µA SUPPLY CURRENT DURING
NORMAL OPERATION
200mA SINK CURRENT FOR ACTIVE
NEGATION
LOGIC COMMAND DISCONNECTS ALL
TERMINATION LINES
CURRENT LIMIT AND THERMAL
PROTECTION
COMPATIBLE WITH SCSI 1, 2 AND 3
STANDARDS
CONSULT FACTORY FOR APPLICATION
TEST REPORT: 5208TR
D
Discussion On Applying
Single-Ended SCSI Bus"
OWER
K E Y F E A T U R E S
SCSI, Request Linfinity
A T A
"Understanding The
- 10MH
Application Note:
For An In-Depth
SCSI T
LIN D
NOTE:
S
LX5208
H E E T
ERMINATOR
Z
O C
#: 5208
1

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LX5208CDWP Summary of contents

Page 1

... LX5268 Plastic SOWB T (°C) DWP A 28-pin, Power LX5208CDWP Note: All surface-mount packages are available in Tape & Reel. Append the letter "T" to part number. (i.e. LX5208CDWPT ESTERN VENUE ARDEN ROVE LIN D LX5208 µ ...

Page 2

LX5208 ...

Page 3

18 ...

Page 4

LX5208 DISCONNECT VBG TERM POWER 5V V TERM 4.7µF LX5208 REGOUT 4.7µF TERMPWR V TERM LX5213 ...

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