PI3L100 Datasheet, PDF (4/6 Pages) Pericom Semiconductor Corporation – 3.3V, Wide Bandwidth Quad 2:1 Mux/Demux LanSwitch

PI3L100
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Applications
LAN Switch
The PI3L100 was designed to switch between various
standards such as 10Base-T, 100Base-T, 100VG-
AnyLAN, and Token Ring. Also general purpose appli-
cations such as loopback, line termination, and line
clamps that might normally use mechanical relays are
also ideal uses for this LAN Switch (see Figure 1).
Generally speaking, this LAN Switch can be used
for data rates to 200 Mbps and data signal levels from 0V
to 3.6V.
LAN Standards
10Base-T
100Base-T
100VG-AnyLAN
Data Rate per twisted pair (UTP)
10 Mbps
100 Mbps
25 Mbps
V_CC Bias Voltage vs. RON
To keep R_ON to a minimum, it is recommended that the
V_CC voltage be increased to a voltage between 3.3V and
3.6V. Ideally an input voltage between 0.2V and 3.6V will
keep R_ON flat.
Signal Distortion
Distortion of the input signal is equated to 20LOG
∆R_ON/R_L. So keeping R_ON flat as the data signal level
varies is critical to low distortion. It should also be noted
that increasing the data rate increases harmonic distor-
tion which also effects the signal amplitude.
Test Circuits
3.3V
Vcc
3V
S
D
IN
PI3L100
GND EN
75Ω
35 pF
VOUT
DIGITAL
INPUT
ANALOG
OUTPUT
t ON
50%
90%
50%
90%
t OFF
Ordering Information
Part
Pin Package
PI3L100Q
16 QSOP (Q)
PI3L100L
16 TSSOP (L)
Figure 1. Switching Time
Temperature
–40°C to +85°C
–40°C to +85°C
4
PS8504 11/13/00