Description

The PI3L720 is a 8-Channel 2:1 multiplexer/demultiplexer LAN Switch with Hi-Z outputs. Industry leading advantages include a propagation delay of less than 250ps, resulting from its low channel resistance and I/O capacitance. The device multiplexes differential outputs from a Gigabit Ethernet transceiver (PHY) device to one of two corresponding B or C outputs. The switch is bidirectional and offers little or no attenuation of the high-speed signals at the outputs. It is designed for low bit-to-bit skew, high channel-tochannel noise isolation and is compatible with various standards, such as 10/100/1000 Base-T (Ethernet).

Features

• 1:2 Gigabit LAN Switch

• Power-down support

• Low bit-to-bit skew: 200ps

• Very Low Crosstalk: –75dB @ 250MHz

• Status Indicator LEDs Switched with Ethernet pairs

• VDD Operating Range: +3.0V to +3.6V

• Enhanced ESD Protection (on A, B, C, LED pins):

– 8kV (contact)(1)

– 1.0kV (machine model),

11kV (human body model)

• >650 MHz bandwidth

• Packaging:

– 56-contact TQFN (5 x 11mm, 0.5 pitch)

– 42-contact TQFN (3.5 x 9mm, 0.5 pitch)

– 42-contact TQFN (3.5 x 7mm, 0.4 pitch)

Applications

• Dual Physical Layer Device sharing to one interface

connector, or one controller to dual connectors for docking

• Routes signals for 10/100/1000 Mbit Ethernet