PI3L100 查看數據表（PDF） - Pericom Semiconductor
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PI3L100 Datasheet PDF : 7 Pages
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PI3L100
3.3V, Wide Bandwidth, Quad
2:1 Mux/DeMux LAN Switch
Applications
LAN Switch
The PI3L100 was designed to switch between various stan-
dards such as 10 Base-T, 100 Base-T, 100 VG-Any LAN,
and Token Ring. Also general purpose applications such
as loopback, line termination, and line clamps that might
normally use mechanical relays are also ideal uses for this
LAN Switch (see Figure 4). 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
10 Base-T
100 Base-T
100 VG-Any LAN
Data Rate per twisted pair (UTP)
10 Mbps
100 Mbps
25 Mbps
VCC Bias Voltage vs. RON
To keep RON to a minimum, it is recommended that the VCC
voltage be increased to a voltage between 3.3V and 3.6V.
Ideally an input voltage between 0.2V and 3.6V will keep
RON flat.
Signal Distortion
Distortion of the input signal is equated to 20 LOG
ΔRON/RL. So keeping RON flat as the data signal level var-
ies is critical to low distortion. It should also be noted that
increasing the data rate increases harmonic distortion which
also effects the signal amplitude.
Test Circuits
3.3V
Vcc
3V
S
D
IN
PI3L100
GND EN
VOUT
75Ω
35pF
DIGITAL
INPUT
50%
ANALOG
90%
OUTPUT
tON
50%
90%
tOFF
Figure 1. Switching Time
HP4195A
S1
R1
T1
HP11667A
PI3L100
100Ω
Figure 2. Gain/Phase Crosstalk, Off Isolation
4
PS8504E
02/02/05
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