Microsemi

Integrated Products Division

11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570

Page 3

Copyright

 2000

Rev. 1.0a, 2003-06-30

LX5255

9-Line LVD SCSI Terminator

I N T E GRA T ED

PR ODUC T S

ELECTRICAL CHA RACTERISTICS

Unless otherwise specified, the following specifications apply over the operating ambient temperature 0

°C

and DISCONNECT = 0V.

LX5255

Parameter

Symbol

Test Conditions

Min

Typ

Max

Units

LVD Terminator Section

All term lines open

30

35

mA

VTerm Supply Current

DISCONNECT > 2.0V

5

20

µA

Common Mode Voltage

1.125

1.25

1.375

V

Offset Voltage (Note 1)

Open circuit between (-) and (+) terminals

100

112

125

mV

Differential Terminator Impedance

100

105

110

Ω

Common Mode Impedance

0.5V to 2V

110

150

190

Ω

Output Capacitance (Note 2)

DISCONNECT > 2.0V

3

pF

Mode Change Delay

DIFSENS = 1.4V to 0V

100

115

300

ms

DIFSENS Section

DIFSENS Output Voltage

1.2

1.3

1.4

V

DIFSENS Output Source Current

DIFSENS = 0V

5

15

mA

DIFSENS Sink Current

20

200

µA

Disconnect Section

Disconnect Threshold

0.8

2.0

V

Input Current

DISCONNECT = 0V

10

µA

Note 1: Open Circuit failsafe voltage.

Note 2: Guaranteed by design.