DisplayPort 1.4 MST Hub

Description

The KTM5000 is an advanced DisplayPort1.4a MST hub with an integrated USB type-C de-multiplexer, targeted primarily for Mobile Notebook accessories and display applications. This device functions as a multi-stream audio-video splitter and protocol converter with an HDCP1.x/ HDCP2.3 repeater.

KTM5000 has a DP alt-mode capable USB Type-C Upstream Facing Port (UFP). The four high-speed lanes of UFP can receive DP1.4a MST audio-video and USB3.2 Gen2 data streams simultaneously. The input lane mapping is flexible and meets standard DP or the USB Type-C connector with flip orientation requirements. The incoming DP and USB signals are de-multiplexed, retimed, and transmitted on the Downstream Facing Ports (DFP). The KTM5000 consists of three AC coupled DP/DP++ or DC coupled HDMI/DVI DFPs, each with four high-speed lanes and one USB port with USB3.2 TX and RX pair. The Stream Routing Logic in KTM5000 allows flexible routing of incoming DP MST stream converted into any combination of MST or SST streams on any of the DFP video ports with link rate and lane count change option. Also, the SST stream can be replicated on two or more DFP ports. In addition, the DP SST stream can be converted into an HDMI or DVI output (TMDS signal format).

The combo receiver in KTM5000 supports all DP standard data rates up to HBR3 (8.1 Gbps/lane) and USB3.2 Gen1 (5.0 Gbps) and Gen2 (10.0 Gbps). The dual-mode (DP++) transmitters support DP standard data rates up to 8.1 Gbps/lane and TMDS data rates up to 6.0 Gbps/lane.

Product Family Table

Features KTM5000 KTM5010 KTM5020 KTM5030
Input DP
(4 Lanes)		 DP
(4 Lanes)		 USB-C
(DP alt-mode)
(DP 4 lanes OR 2 lanes DP and 2 lanes USB3.2)		 USB-C
(DP alt-mode)
(DP 4 lanes OR 2 lanes DP and 2 lanes USB3.2)
Outputs 3x DP++
(DP or HDMI)		 3x DP++
(DP or HDMI)		 3x DP++
(DP or HDMI)
1x USB3.2		 3x DP++
(DP or HDMI)
1x USB3.2
USB De-mux & Re-timer No No Yes Yes
HDCP2.2 Yes Yes Yes Yes
HDR, Pixel Processor Yes Yes No Yes
DSC & FEC No Yes No Yes

Features

  • DisplayPort® (DP) ver.1.4a compliant receiver
  • Triple DP1.4a / HDMI2.0b (DP++) transmitters
  • HDMI 2.1 Features
  • Video processing
  • Max video resolution and color depth on DP output uncompressed
    • 5K3K60Hz, RGB/YCbCr444, 8 bpc
    • 8K4K60Hz, YCbCr420 up to 8 bpc
    • 4K2K120Hz, RGB/YCbCr444, 8 bpc
  • Max video resolution and color depth on HDMI TX
    • 4Kp60Hz, RGB/YCbCr444, 8 bpc
    • 4Kp60Hz, YCbCr420, up to 16 bpc
    • 4Kp30Hz, RGB/YCbCr444, up to 16 bpc
  • Audio processing
    • Audio stream forwarding from DP RX to HDMI TX
    • Conversion to I2S or TDM audio output (8 CH)
    • Conversion to SPDIF audio output (2CH)

Applications

  • Mobile PC docking stations
  • Dongles
  • MST video hubs
  • AR / VR devices
  • High end displays such as digital signage
  • Daisy-chain monitors

Key Electrical Specifications

Part Number Description Operating Temperature Package Advantages
KTM5000 DisplayPort 1.4 MST Hub 0°C to +70°C LFBGA1212-289 Single-chip, highly integrated, low-power and high-performance DP 1.4a MST HUB with three configurable DP 1.4a or HDMI 2.0b (DP++) outputs and integrated retimer.

Functional Block Diagram

KTM5000