BW9822

eUSB2 Repeater with USB 3.2 Redriver
BW9822 is a eUSB2 repeater with 10Gbps linear redriver.
The device includes two main function blocks:
1. The eUSB2 Repeater
2. The USB3.2 10Gbps Redriver
 
eUSB2 Repeater

It is a eUSB2 repeater which translates between eUSB2 and USB 2.0 signaling, and it is dual-role capable supporting both host mode and device mode. It supports High-Speed (HS), Full-Speed (FS) and Low-Speed (LS) operation, and consumes ultra-low power in L1/L2 states. It also supports auto-resume for better interoperability in case the host controller is not capable to initiate Resume in time. It provides various registers for function configuration and fine-tuning for USB 2.0 and eUSB2 PHY via RAP (Register Access Protocol) or I2C interface. It is powered by 1.8V and 3.3V, and does not require specific power-on sequence.

USB3.2 Redriver

It is a low-power 10Gbps linear redriver.  It is compliant with the USB 3.2 specification. It provides adjustable equalizer, flat gain controller to compensate for the channel loss, and extends the length and enables the systems to pass USB compliance.  The device optimizes performance when USB signals travel across PCB and cables, signal integrity degrades due to loss and inter-symbol interference.
It offers single supply voltage 3.3V with ultra-low power consumption.  Each channel operates independently.  The advanced power management of it can consume ultra-low power when the channel is idle for a longer time.
 
All available packages for BW9822 are listed in the following table.
Product Series
Package Type
BW9822
QFN 34
eUSB2 Repeater
 
  • Compliant with USB 2.0 and eUSB2 (rev 1.2) spec
    • Support High-Speed (HS), Full-Speed (FS) and Low-Speed (LS) operation
    • Support LPM L1 (Sleep) and L2 (Suspend)
    • Support 1.2V FS/LS signaling of eUSB2 interface
    • Support host and device mode (dual-role repeater)
    • Support auto-resume in host mode
    • Support register access protocol (RAP)
      • Accept RAP at any time, not only in Default state
  •  Compliant with “USB 2.0 DC Resistance” ECN with programmable squelch and disconnect threshold
  •  Compliant with “USB 2.0 eUSB2 repeater effects” ECN (ver. 20240820)
  •  Compliant with Battery Charging (rev 1.2) spec
    • Support CDP and DCP advertising
    • Support SDP, CDP and DCP detection
  •  Programmable TX swing and RX equalization for both USB2.0 and eUSB2 interfaces
  •  I2C Interface
    • Support 3.3V, 1.8V interface
    • Support Standard-mode, Fast-mode, and Fast-mode Plus
    • Support byte and burst read/write
    • 4-level ADDR pin
  •  USB 2.0 DP/DM pins are 5V tolerance
  • Supply 3.3V (VDD33) and 1.8V (VDD18) power
    • Not require the power sequence
    • Power on flow done and enter eUSB2 Default state within 4ms after power supplies are valid
 
USB3.2 Redriver
 
  • Compliant with USB 3.2 Gen 1 / Gen2 Specification
  • Two 10 Gbps differential signal pairs
  • 4-level selectable Equalization / flat gain
  • Adjustable receiver equalization
  • Adjustable flat gain
  • Advanced power management mode
    • Active mode: 300 mW
    • Sleep mode: <1 mW
    • Disconnect mode: 0.6 mW
  • Single supply voltage: 3.3V
  • Applications
    • Desktop and notebook PC
    • Cellular phones
    • Tablet
    • TVs
BW9822