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STDP2650

Advanced DisplayPort to HDMI converter
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The STDP2650 is a high-speed DisplayPort to HDMI converter IC for applications such as audio-video accessories for docking stations, TV front-end design, etc. This device includes a VESA DP Standard Ver.1.2a compliant receiver and an HDMI 1.4 compliant transmitter. The DisplayPort input port comprises four Main lanes, AUX CH, and HPD signal. The HDMI output port includes DDC, CEC, and HPD support.

The STDP2650 uses ST's latest generation DisplayPort receiver technology that supports HBR2 speed, a data rate of 5.4 Gbps per lane with a total bandwidth of 21.6 Gbps link rate. The HDMI transmitter is capable of supporting link rate up to 2.97 Gbps that corresponds to a pixel rate of 297 MHz, adequate for handling video resolution up to FHD 120 Hz 3D formats. This device delivers deep color video up to 16-bits per color at 1080p 60 Hz and lower video resolutions. The STDP2650 allows audio transport from the source to desired audio rendering devices over the HDMI output or through the SPDIF port. The audio signal from the source can be routed simultaneously to HDMI and SPDIF output ports. For example, the STDP2650 allows routing of any two audio channels on the SPDIF port, while transporting up to eight channels on the HDMI port.

The STDP2650 supports RGB and YCbCr colorimetric formats with color depth of 16, 12, 10, and 8 bits. This device features HDCP 1.3 content protection scheme with an embedded key option for secure transmission of digital audio-video content. It also operates as an HDCP repeater for the downstream sink. The eDP authentication option ASSR (Alternative Scrambler Seed Reset) is supported for embedded application.

The AUX-to-I2C translator in the STDP2650 allows the upstream DisplayPort source to access EDID and transfer MCCS commands to a downstream sink over the HDMI interface. This device has an on-chip microcontroller with SPI and I2C host interface for system configuration purposes. The STDP2650 can be configured with an external SPI Flash for custom applications. In addition, it allows register level configuration from an external host controller through I2C interface.

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Errata Sheet
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Key Features

  • DisplayPort® (DP) receiver
  • DP 1.2a compliant
  • Link rate HBR2/HBR/RBR
  • 1, 2, or 4 lanes
  • AUX CH 1 Mbps
  • Supports eDP operation
  • HDMI 1.4 transmitter
  • Max data rate up to 2.97 Gbps/data pair
  • Color depth up to 48 bits
  • 3D video timings
  • CEC
  • SPDIF audio output
  • 192 kHz/24 bits
  • Compressed/LPCM
  • HDCP repeater with embedded keys
  • ASSR -- eDP display authentication option
  • AUX to I2C bridge for EDID/MCCS pass through
  • Device configuration options
  • SPI Flash
  • I2C host interface
  • Spread spectrum on DisplayPort interface for EMI reduction
  • Deep color support
  • RGB/YCC (4:4:4) – 16-bit color
  • YCC (4:2:2) – 16-bit color
  • Color space conversion – YUV to RGB and RGB to YUV
  • Bandwidth
  • Video resolution up to 4K x 2K @ 30 Hz; 1920 x 1080 @ 120 Hz
  • Audio 7.1 Ch up to 192 kHz sample rate
  • Low power operation; active 462 mW, standby 21 mW
  • Package
  • 81 BGA (8 x 8 mm)
  • Power supply voltages
  • 3.3 V I/O; 1.2 V core

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Technical Documentation

Product Specifications

Description Version Size
pdf
DB1669: Advanced DisplayPort to HDMI converter
2.0 133 KB

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