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SP319DS/08 SP319 20Mbps, +5V-Only V.35 Interface with RS-232 (V.28) Control Lines Copyright 2000 Sipex Corporation
ABSOLUTE MAXIMUM RATINGS
These are stress ratings only and functional operation of the device at
these ratings or any other above those indicated in the operation
sections of the specifications below is not implied. Exposure to absolute
maximum rating conditions for extended periods of time may affect
reliability.
V
.....................................................................................................+7V
Input Voltages
Logic........................................................-0.3V to (V
CC
+0.5V)
Drivers..................................................-0.3V to (V
CC
+0.5V)
Receivers..................................................
±
30V at
≤
100mA
Output Voltages
Logic........................................................-0.3V to (V
+0.5V)
Drivers.......................................................................
±
14V
Receivers..............................................-0.3V to (V
+0.5V)
Storage Temperature.......................................................-65C to +150C
Power Dissipation per Package
80-pin QFP (derate 18.3mW/
o
C above +70
o
C)..........................1500mW
SPECIFICATIONS
T
AMB
= T
MIN
to T
MAX
and V
CC
= 5V
±
5% unless otherwise noted.
PARAMETER
MIN.
TYP.
MAX.
UNITS
CONDITIONS
V.35 DRIVER
TTL Input Levels
V
IL
V
IH
0.8
Volts
Volts
2.0
Voltage Outputs
Open Circuit Voltage
Differential Outputs
Source Impedance
Short Circuit Impedance
+1.2
+0.66
150
165
Volts
Volts
Ohms
Ohms
Refer to Figure 1
R
=100
from A to B; Figure 2
Figure 4
Measured from A=B to Gnd,
V
OUT
=-2V to +2V; Figure 5 T
= +25
o
C
V
Offset
={[|V
A
|+|V
B
|]/2}; Figure 3
+0.44
50
135
+0.55
100
150
Voltage Output Offset
-0.6
+0.6
Volts
AC Characteristics
Transition Time
Maximum Transmission Rate
Propagation Delay
t
PHL
T
= +25
o
C for all AC parameters
10% to 90%; Figure 6
V
DIFF OUT
= 0.55V+20% ; Figure 9
40
ns
Mbps
10
80
100
ns
Measured from 1.5V of V
to 50% of V
; Figure 9 10
Measured from 1.5V of V
to 50% of V
OUT
; Figure 9 10
t
PLH
80
100
ns
V.35 RECEIVER
TTL Output Levels
V
OL
V
Receiver Inputs
Differential Input
Threshold
Input Impedance
Short Circuit Impedance
0.4
Volts
Volts
I
OUT
=-3.2mA
I
OUT
=1.0mA
2.4
-0.3
90
135
+0.3
110
165
Volts
Ohms
Ohms
100
150
Figure 7
Measured from A=B to Gnd
V
IN
=-2V to +2V; Figure 8 T
AMB
= +25
o
C
AC Characteristics
Maximum Transmission Rate
Propagation Delay
t
PHL
T
AMB
= +25
o
C for all AC parameters
V
IN
= +0.55V +20%; Figure 9
10
Mbps
60
80
ns
Measured from 50% of V
IN
to
1.5V of R
; Figure 9, 11
Measured from 50% of V
IN
to
1.5V of R
OUT
; Figure 9, 11
t
PLH
60
80
ns