LX5249CDB MICROSEMI, LX5249CDB Datasheet - Page 3
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LX5249CDB
Manufacturer Part Number
LX5249CDB
Description
Manufacturer
MICROSEMI
Type
SCSI Terminationr
Datasheet
1.LX5249CDB.pdf
(6 pages)
Specifications of LX5249CDB
Number Of Bits
9
Operating Supply Voltage (typ)
3.3/5V
Operating Supply Voltage (max)
5.25V
Package Type
TSSOP
Mounting
Surface Mount
Operating Temperature Classification
Commercial
Lead Free Status / RoHS Status
Compliant
UltraMAX
Copyright © 2001
Rev. 0.6b
Note 2. Range over which the device is functional.
(Unless otherwise specified, these specifications apply over the operating ambient temperature range of 0°C
DISCONNECT: LX5248/49 = L. Low duty cycle pulse testing techniques are used which maintains junction and case temperatures equal to the ambient
temperature.)
Note 3. Open circuit failsafe voltage.
Termpwr Voltage
Signal Line Voltage
Disconnect Input Voltage
Operating Junction Temperature Range
LVD Terminator Section
TermPwr Supply Current
Common Mode Voltage
Offset Voltage (Fail Safe Bias Voltage)
Differential Terminator Impedance
Common Mode Impedance
Output Capacitance
Output Leakage
Mode Change Delay
DIFFSENSE Section
DIFFSENSE Output Voltage
DIFFSENSE Output Source Current
DIFFSENSE Sink Current
DIFFSENSE Output Leakage
DISCONNECT Section
DISCONNECT Threshold
Input Current
MASTER / SLAVE Section
MASTER / SLAVE Threshold
Input Current
LX5248 / LX5249
Parameter
Parameter
R E C O M M E N D E D O P E R A T I N G C O N D I T I O N S
P R O D U C T D A T A B O O K 1 9 9 6 / 1 9 9 7
Symbol
I
I
LVD I
SINK (DIFF)
SINK (DIFF)
V
I
I
V
TH (MS)
IL (MS)
V
V
Z
I
V
C
LEAK
t
Z
DIFF
I
DIFF
FSB
CM
CM
DF
TH
IL
P
D
O
E L E C T R I C A L C H A R A C T E R I S T I C S
CC
9 - L
R E L I M I N A R Y
All term lines = Open
DISCONNECT: LX5248/49 = H
Open circuit between - and + (see Note 3)
V
0V to 2.5V
DISCONNECT: LX5248/49 = H
DISCONNECT: LX5248/49 = H, V
DISCONNECT: LX5248/49 = H, V
DIFFSENSE = 1.4V to 0V
DIFFSENSE = 0V
V
DISCONNECT: LX5248/49 = H, T
DISCONNECT: LX5248/49 = 0V
MASTER / SLAVE: LX5248/49 = 0V
OD
IN
= 2.75V
I N E
= -1V to 1V
LV D S C S I T
Test Conditions
Symbol
V
D
TERM
A T A
E R M I N A T O R
LINE
A
TERM
= 25°C
= 0 to 4V, T
= 0V, V
S
Recommended Operating Conditions
H E E T
Min.
LINE
3.0
0
0
0
= 2.7V
A
=25°C
LX5248/LX5249
(Note 2)
Typ.
T
A
1.125
70°C. TermPwr = 3.3V,
Min.
100
100
100
100
1.2
5.0
0.8
0.8
LX5248 / 5249
Typ.
1.25
112
105
200
150
2.5
1.3
21
5
0
1
Max.
5.25
V
5.0
70
TERM
1.375
Max.
15.0
125
110
300
200
1.4
2.0
2.0
25
10
10
10
10
2
Units
Units
°C
V
V
V
mA
mA
µA
mV
µA
µA
µA
µA
µA
µA
pF
ms
V
V
V
V
3