Datasheet

MAX3172/MAX3174
+3.3V Multiprotocol Software-Selectable
Cable Terminators and Transceivers
_______________________________________________________________________________________ 5
0
14
12
18
16
22
20
24
V.28 SLEW RATE
vs. LOAD CAPACITANCE
MAX3172-01
LOAD CAPACITANCE (pF)
SLEW RATE (V/µs)
0
500
1000 1500
3000
10
8
6
4
2
2500
2000
+SLEW
-SLEW
R
L
= 3kΩ
V.28 60kbps TRANSMITTER
WAVEFORM (3kΩ/1000pF LOAD)
MAX3172-02
10µs/div
T4IN
5V/div
T4OUT
5V/div
0
5V
0
5V
-5V
0
0.5
1.5
1.0
2.0
2.5
0 1000500 1500 2000 2500 3000
V.10 RISE AND FALL TIMES
vs. LOAD CAPACITANCE
MAX3172-03
LOAD CAPACITANCE (pF)
RISE AND FALL TIMES (µs)
FALL TIME
RISE TIME
R
L
= 450Ω
Typical Operating Characteristics
(V
CC
= +3.3V (see Note 2 in Electrical Characteristics table), T
A
= +25°C, unless otherwise noted.)
V.10 60kbps TRANSMITTER
WAVEFORM (450Ω/100pF)
MAX3172-04
10µs/div
0
5V
0
5V
-5V
5V/div
T4OUT
5V/div
T4IN
100
102
101
104
103
106
105
107
109
108
110
-10 10 20 3004050607080
V.11/V.35 DIFFERENTIAL-MODE
IMPEDANCE vs. TEMPERATURE
MAX3172-05
TEMPERATURE (°C)
DIFFERENTIAL-MODE IMPEDANCE (Ω)
V
CM
= -7V
V
CM
= 0
V
CM
= +7V
100
103
102
101
105
104
109
108
107
106
110
-7 -5 -3 -1 1357
V.11/V.35 DIFFERENTIAL-MODE
IMPEDANCE vs. COMMON-MODE VOLTAGE
MAX3172-06
COMMON-MODE VOLTAGE (V)
DIFFERENTIAL-MODE IMPEDANCE (Ω)