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Enabling SuperSpeed+ USB and Beyond

Products

VL600 - USB-C DP Alt-mode to HDMI2.0b Protocol Converter

Description

VIA Lab’s VL600 is a highly integrated single chip USB-C DP Alt-mode or DP1.4a to HDMI 2.0b protocol converter targeted for USB-C video dongles and USB-C multi-function docks. Integrated USB-C UFP CC1 pin and USB Billboard device, a single VL600 can convert DP signals to 4K@60Hz HDMI output on an USB-C plug-to-HDMI dongle. Accompanied with VLI’s diversified USB PD and Hub controllers, VL600 creates various USB-C multi-function dock applications with features like USB PD charge through and secure FW update at USB4 or USB3.2 Gen2 / Gen1 speed.
 
The DP receiver port supports up to a HBR3 8.1Gbps data rate over 4 lanes and the HDMI TMDS source supports up to 6Gbp data rate. Both DP receiver and TMDS source support color formats of RGB 8/10/12 bpc and YCbCr 4:4:4/4:2:2/4:2:0 8/10/12 bpc. Audio output supports up to 8 channels of LPCM at 32kHz, 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, and 192kHz sample rate with sample size of 16, 20, and 24 bits. Also VL600 can support compressed audio formats. VL600 built-in HDCP 1.4 and HDCP 2.3 repeater function with embedded keys. The DP DSC1.1/1.2a compressed stream can be decoded by VL600 to uncompressed format and converted to the connected HDMI sink. VL600 also supports HDR metadata handling for high dynamic range content transmission. HDMI hot plug detection signal is detected by VL600 and output to either the DP receiver’s hot plug detection pin or to USB-C DP Alt-mode interface as a PD command. 
 
Built-in 8051 microcontroller with an interface to external SPI flash, VL600 can store its firmware code in standalone SPI flash or share SPI flash with VLI PD/Hub controller. Firmware upgrade can be done by USB Billboard, I2C slave interface, or DP AUX channel. 4 GPIO pins are available for specific application usage. VL600 is available in QFN 60L (7x7x0.85 mm).



 

Block Diagram

Key Features

  • DisplayPort 1.4a Receiver Interface
    - Compliant to VESA DisplayPort Standard Version 1.4a
    - DisplayPort 1, 2, and 4 lanes with RBR, HBR, HBR2, HBR3 data rates
    - VESA Display Stream Compression Standard (DSC) V1.2a decoder with 1/2 slices and FEC
    - Supports color formats RGB 8/10/12 bpc and YCbCr 4:4:4/4:2:2/4:2:0 8/10/12 bpc
    - RGB/YCbCr color space conversion
    - YCbCr 444/422/420 downward conversion
    - HDCP 2.3 and HDCP 1.4 repeaters with on-chip keys
  • HDMI 2.0b Source Interface
    - Compliant to High-Definition Multimedia Interface Specification Version 2.0b
    - TMDS data rate up to 6Gbps per channel
    - Supports up to 3840x2160 @60Hz or 4096x2160 @60Hz under DP1.4 2-lane mode
    - Supports Static High Dynamic Range (HDR) meta data handling
    - Audio output up to 8-channel 192KHz LPCM and compressed audio encoding formats
  • Built-in VESA DP Alt-mode and USB Billboard Device
    - Compliant to VESA DisplayPort Alt-mode on USB Type-C Standard Version 2.0
    - Compliant to USB Type-C Cable and Connector Specification Revision 2.0
    - Compliant to USB Power Delivery Specification Revision 3.0 Version 1.2
    - Built-in CC1 with Rd pull-down resistor and DP Sink Pin Assignment C
    - Built-in USB Billboard that compliant to USB Device Class Definition for Billboard Devices Revision 1.21
  • Fast 8051 Macro Cell 80C32-Compatible Microcontroller
    - Standard 1T 8051 instruction set with embedded Mask ROM and SRAM
    - Supports firmware upgrade by external SPI flash or sharing SPI flash with VLI Hub and/or PD controller
  • Clock, Power Supply and Power Management
    - External 27 MHz crystal oscillator interface
    - 1.2V core power supply and 3.3V I/O power supply
  • GPIOs and I2C for Special Function and Control
    - 4 GPIOs for application customization and one I2C slave interface
  • Physical
    - QFN 60 green package (7x7x0.85 mm)
  • Certification
    - USB-IF PD 3.0 Certification TID: 7019
  • Applications
    - USB-C to HDMI dongle or Multi-function dongle by VESA DP Alt-mode
    - USB4 to HDMI Multi-function dongle by USB4 DP tunneling