PI3USB411 Datasheet, PDF (1/16 Pages) Pericom Semiconductor Corporation – 3.3V, USB 2.0 High-Speed Signal Switch w/ Low THD Channels for Audio Signals

Features
• Bandwidth for USB ports > 1.2Gbps
• Low THD for Audio ports < 0.02%
• ESD > 2kV HBM
• Low I_CC = 800µA
• Wide V_CC operating range: 2.7V to 4.2V ±10%
• Packaging: Pb-free & Green, 16-contact TDFN (ZJ16)
Block Diagram
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PI3USB411
3.3V, USB 2.0 High-Speed Signal Switch
w/ Low THD Channels for Audio Signals
Description
PI3USB411 integrates two unique Pericom technology solutions
into a single IC package. PI3USB411 offers the customer a
solution that switches both high speed differential signals, with
high bandwidth performance, as well as low THD audio signals.
For handheld applications where both a USB data transfer port
and a port for an external headset is required, the PI3USB411
solution can offer the ability to combine the two ports into one.
With a single port, design engineers are faced with an issue of
switching two completely different types of signals. One signal
is a high speed differential signal, where bandwidth is the largest
concern, and the second signal is an audio signal, where low THD
is the largest concern. Pericom’s solution offers multiple channels
within the PI3USB411 device. Two channels are targeted for high
speed USB2.0 signals (Dx), and two channels are targeted for low
THD audio signals (Ax). Due to its passive nature, all paths will
allow bi-directional traffic.
Pin Description
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Truth Table
USB_EN
0
1
A_ENx
0
1
Note: x = 1, 2
06-0078
Function
D_I = DO
D_I = DO = Hi-Z
Function
Ainx = Aoutx
Ainx = Aoutx = Hi-Z
1
PS8817A
06/06/06