PI3L110 (Not Recommended for New Design (NRND))

Product Description

The PI3L110 is a 8- to 4-bit 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 Fast Ethernet transceiver (PHY) device to one of two corresponding 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-to-channel noise isolation and is compatible with various standards, such as 10/100 Base-T (Ethernet). Generally, this part can be used to replace mechanical relays in low-voltage LAN applications that interface a physical layer over CAT 5 or CAT 6 unshielded twisted pair cable through an isolation transformer. The PI3L110 is fully specified for partial-power-down applications using I_OFF. The I_OFF feature ensures that damaging current will not backflow thoughout the device when it is powered down. The device has isolation during Power Off.

Features

• R_ON is 4Ω typical
• Low crosstalk: –27dB @ 250 MHz
• Near-Zero propagation delay: 250ps
• Switching speed: 9ns
• Channel On capacitance: 9pF (typical)
• V_CC Operating Range: +3.0V to +3.6V
• >2kV ESD protection (human body model)
• >350 MHz bandwidth (or data frequency)
• Switching on Data I/O Ports (0 to 5V)
• I_OFF supports Partial-Power-Down mode operation
• Data and Control Inputs have Undershoot Clamp Diodes
• Packaging (Pb-free & Green available)
• 16-pin 150-mil wide plastic QSOP (Q)
• 16-pin 173-mil wide plastic TSSOP (L)

Applications

• Dual Physical Layer Device sharing to one interface connector
• Routes signals for 10/100 Mbit Ethernet