HD3SS3212_16 Datasheet, PDF (8/26 Pages) Texas Instruments – Two-Channel Differential 2:1/1:2 USB3.1 Mux/Demux

HD3SS3212, HD3SS3212I
SLASE74C – MAY 2015 – REVISED JANUARY 2016
9 Detailed Description
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9.1 Overview
The HD3SS3212 is a generic analog differential passive switch that can work for any high-speed interface
applications requiring a common mode voltage range of 0 to 2 V and differential signaling with differential
amplitude up to 1800 mVpp. It employs adaptive tracking that ensures the channel remains unchanged for the
entire common mode voltage range.
Excellent dynamic characteristics of the device allow high-speed switching with minimum attenuation to the
signal eye diagram with very little added jitter. It consumes <2 mW of power when operational and has a
shutdown mode exercisable by OEn pin resulting <20 µW.
9.2 Functional Block Diagram
9.3 Feature Description
9.3.1 Output Enable and Power Savings
The HD3SS3212 has two power modes, active/normal operating mode and standby/shutdown mode. During
standby mode, the device consumes very-little current to save the maximum power. To enter standby mode, the
OEn control pin is pulled high through a resistor and must remain high. For active/normal operation, the OEn
control pin should be pulled low to GND or dynamically controlled to switch between H or L.
HD3SS3212 consumes <2 mW of power when operational and has a shutdown mode exercisable by the EN pin
resulting <20 µW.
8
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