XRT91L31 View Datasheet(PDF) - Exar Corporation
Part Name
Description
MFG CO.
'XRT91L31' PDF : 41 Pages View PDF
REV. 1.0.2
STS-12/STM-4 OR STS-3/STM-1 SONET/SDH TRANSCEIVER
LVPECL AND LVTTL LOGIC SIGNAL DC ELECTRICAL CHARACTERISTICS
XRT91L31
ELECTRICAL CHARACTERISTICS
Test Conditions: VDD = 3.3V + 5% unless otherwise specified
SYMBOL
TYPE
PARAMETER
MIN
VOH
LVPECL Output High Voltage
TYP
MAX
UNITS
VDDLVPECL - V
0.9
CONDITIONS
VOL
LVPECL Output Low Voltage
0.7
VOCOMM LVPECL Output Common Mode Voltage
1.1
VODIFF LVPECL Peak-to-peak Output Differen-
600
tial Voltage (see Figure 28)
V
VDDLVPECL - V
1.3
1300
mV
187 Ω pull
down and 100Ω
line-to-line ter-
mination. (see
Figure 17)
VIH
LVPECL Input High Voltage
VIL
LVPECL Input Low Voltage
VDDLVPECL -
0.9
0
VDDLVPECL - V
0.3
VDDLVPECL - V
1.72
For
Single-Ended
For
Single-Ended
VIDIFF LVPECL Peak-to-peak Input PECL Dif-
400
ferential Voltage (see
Figure 28)
1600
mV 100 Ω line-to-
line termina-
tion. (see
Figure 3)
VICOMM LVPECL Input PECL Common Mode
Voltage
1.5 - VIDIFF/2 1.7 VDDLVPECL - V
1.0 -VIDIFF/2
Internal com-
mon mode
biasing.
VOH
LVTTL/ Output High Voltage
LVCMOS
2.4
VDD3.3
V
IOH = -1.0mA
VOL
LVTTL/ Output Low Voltage
LVCMOS
VIH
LVTTL/ Input High Voltage
LVCMOS
0
0.4
V
IOL = 1.0mA
2.0
VDD3.3
V
VIL
LVTTL/ Input Low Voltage
LVCMOS
IIH
LVTTL/ Input High Current
LVCMOS
IIL
LVTTL/ Input Low Current
LVCMOS
0
0.8
50
500
-500
V
μA 2.0V<VIN<3.3V
VIN=2.4V typical
μA -0.5V<VIN<0.8V
NOTE: All input control pins are LVCMOS and LVTTL compatible. All output control pins are LVCMOS compatible and
LVTTL compliant to ±1 mA maximum current drive.
39
Share Link: 
