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USB2.0 and Audio Switch
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The PI3USB223 combines AC coupled audio signals and USB2.0
HS (480Mbps) on the same pins. This enables users to use a single
connector to drive either a USB end point or an audio end point.
PI3USB223 incorporates gate pump technology required to maintain
low Ron for ideal audio THD while reducing the capacitance
affect of high speed USB signals. The device also incorporates a
substrate pump technology which allows -2V signals to pass through
the switch without causing any leakage.
The PI3USB223 features protection on D+/R and D-/L to ensure no
damage will happen to the IC if these pins are shorted accidentally
to Vbus as well as ensuring there is no leakage when VDD is on or
off. Also, it includes VBUS detection (VB) to automatically switch
to the USB signal path upon detection of a valid VBUS signal. It
also features internal shunt resistors on the audio path to reduce
clicks and pops heard during output. The device is available in a
space-saving 10-pin, 1.4mm x 1.8mm UQFN package, and operate
over the -40°C to +85°C temperature range.


  • Single +2.7V to +4.4V Supply Voltage
  • Low 50μA Supply Current
  • -3dB Bandwidth: 1500MHz (typ)
  • Low 2.5Ω(typ)On-Resistance
  • THD+N: 0.02%
  • Shorting D+/R and D-/L to Vbus will not cause leakage when
    VDD = 0
  • Internal Shunt Resistors for Click-and-Pop Reduction
  • VBUS Detection for Automatic Switch Path Selection
  • Packaging (Pb-free & Green available):
    10-pin contact UQFN, 1.4 x 1.8, (ZM10)

Product Specifications

Product Specs

Analog or Digital? Analog
Single Ended Channels 2
Signal Type Differential
RailToRail No
OtherFeatures None
Lanes 2
HotInsertion No
Differential Channels 2
Voltage 3.3

Quality & Reliability

Quality Documentation

Process Qualification

Technical Documents

Design tool model software

Additional Technical Documents are available upon request: 
Application information, Evaluation board, and Other technical documents

Request Documents

Orderable Part Number Status Package Temp Range ℃ Pb (Lead) Free Packing Buy from Distributor /
Contact Sales
PQR PDN Request
Qty. Carrier Samples Material Report (SGS)
PI3USB223ZMEX Active UQFN-10 -40 to 85 Yes 3000 T/R Contact Sales Samples SGS


Product Change Notices

PCN # Issue Date Subject
16-12 2016-02-06 Adding two internal assembly and test sites: Diodes Technology (Chengdu) Company Limited (CAT) located in Chengdu, China and Diodes SKE/DSH (Shanghai Kaihong Electronic Co./Diodes Inc. Shanghai) (SAT) located in Shanghai, China.
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