USB3329C-GL-TR

SMSC’s USB3329 is a family of Hi-Speed USB 2.0 Transceivers that provides a physical layer (PHY) solution well-suited for portable electronic devices. Both commercial and industrial temperature applications are supported. Each model in the USB3329 family may use a 60MHz reference clock Several advanced features make the USB3329 the transceiver of choice by reducing both electrical bill of material (eBOM) part count and printed circuit board (PCB) area. Outstanding ESD robustness eliminates the need for external ESD protection devices in typical applications. The internal OverVoltage Protection circuit (OVP) protects the USB3329 from voltages up to 30V. By using a reference clock from the Link, the USB3329 removes the cost of a dedicated crystal reference from the design. And the integrated USB switch enables unique product features with a single USB port of connection. The USB3329 meets all of the electrical requirements to be used as a Hi-Speed USB Host, Device, or an On-the-Go (OTG) transceiver. In addition to the supporting USB signaling, the USB3329 also provides USB UART mode and USB Audio mode. USB3329 uses the industry standard UTMI+ Low Pin Interface (ULPI) to connect the USB PHY to the Link. ULPI uses a method of in-band signaling and status byte transfers between the Link and PHY to facilitate a USB session with only 12 pins. The USB3329 uses SMSC’s “wrapper-less” technology to implement the ULPI interface. This “wrapperless” technology allows the PHY to achieve a low latency transmit and receive time. SMSC’s low latency transceiver allows an existing UTMI Link to be reused by adding a UTMI to ULPI bridge. By adding a bridge to the ASIC the existing and proven UTMI Link IP can be reused.

• Integrated ESD protection circuits
  • Up to ±15kV IEC Air Discharge without external devices
• Over-Voltage Protection circuit (OVP) protects the
• VBUS pin from continuous DC voltages up to 30V
• Integrated USB Switch
  • No degradation of Hi-Speed electrical
• characteristics
  • Allows single USB port of connection by
• providing switching function for: – Battery charging – Stereo and mono/mic audio – USB Full-Speed/Low-Speed data
• flexPWR® Technology
  • Low current design ideal for battery powered
• applications
  • “Sleep” mode tri-states all ULPI pins and places
• the part in a low current state
  • 1.8V IO Voltage (±10%)
• Integrated battery to 3.3V LDO regulator
  • 2.2uF bypass capacitor
  • 100mV dropout voltage
• “Wrapper-less” design for optimal timing performance and design ease