DisplayPort™ to HDMI™/DVI Converter

The PS171 is a new generation DisplayPort™ to HDMI™/DVI converter that receives both video and audio streams from an upstream DisplayPort Source link and converts to an HDMI or DVI output. The HDMI transmitter is compliant to the HDMI 1.4b specification and supports video formats using TMDS clock rates up to 300MHz (3.0Gbps TMDS data rate).

The PS171 supports DisplayPort branch functions for active protocol conversion, namely DisplayPort-to-HDMI or DisplayPort-to-DVI. The PS171 provides anonymous, automatic operation that is enabled by an integrated microprocessor that uses an external SPI ROM for configuration and microcode. The SPI ROM can be field-updated through the AUX channel or device I2C port. System control is available through the use of a dedicated I2C slave input, and an I2C master interface is available for external EDID and expansion functions. The PS171 fully supports HDCP content protection, including the HDCP repeater function, with integrated HDCP Rx & Tx keys.

Key Features

  • Integrates a complete DisplayPortTM receiver and complete HDMI/DVI transmitter for video format conversion
  • Fully compliant HDMI output, up to 300 MHz TMDS clock, supports HDMI 1.4 video formats
  • Fully compliant DisplayPort input, video and audio
  • Full HDCP 1.3 content protection support
  • RGB at 6/8/10/12 bpc (bits-per-component) supported
  • YCbCr 4:4:4 and YCbCr 4:2:2 8/10/12 bpc supported
  • Audio input formats: 8-ch LPCM, compressed audio (AC-3, DTS) and HBR audio format, up to 24-bit audio sample size and 192 kHz sample rate
  • Includes on-chip microprocessor with SPI ROM interface
  • 1.2V Core Power Supply & 3.3V I/O Power Supply
  • Internal crystal oscillator, supports external crystal or reference clock
  • ESD: HBM 8kV at connector pins and 5kV for all other pins
  • 56-pin QFN package

DisplayPort Receiver Capability

  • Supports 1, 2, and 4 lanes at both 1.62 Gbps and 2.7 Gbps data rates
  • Built-in automatic receiver equalization
  • Supports both full link training and no link training operation
  • Video input formats: RGB up to 12 bpc, YCbCr4:4:4 -4:2:2 up to 12 bpc
  • Supports reduced blanking or reduced refresh rate timing modes
  • Audio input formats: 8-ch LPCM, compressed audio and HBR
  • 24-bit audio sample size, up to 192 kHz sample rate
  • Supports DisplayPort Spread Spectrum Clocking

HDMI/DVI Transmitter Capability

  • HDMI 1.4b transmitter, up to 3.0Gbps supporting 3D 1080p and 4K x 2K @30Hz 24 bit color
  • Video output formats: RGB up to 12 bpc, YCbCr4:4:4 -4:2:2 up to 12 bpc
  • Audio output formats: 8-ch LPCM, compressed audio and HBR
  • 24-bit audio sample size, up to 192 kHz sample rate

Applications:

  • Docking device
  • Enablement of DisplayPort input for CE device (see diagram below)
  • Active Protocol DisplayPort-to-HDMI Video Adapter (see diagram below)
  • Active Protocol DisplayPort-to-DVI Video Adapter (see diagram below)