FEATURES GENERAL DESCRIPTION

 VESA DisplayPort Specification version 1.4a

 HDMI transmitter supports HDMI specification version

2.1/2.0/1.4b

 HDCP 1.4 and HDCP 2.3 standards

 Supports HDCP repeater mode

 High Dynamic Range (HDR) dynamic / static metadata

incorporated

 DTV profile uncompressed high speed digital interface

CTA-861-G

 DSC Standard v1.2a decoding and DSC bypass capable

 Video color space including RGB at 6/8/10/12 bpc,

YCbCr4:4:4 and YCbCr4:2:2 /4:2:0 at 8/10/12 bpc

 RGB to YCC 4:4:4/4:2:2/4:2:0 and YCC 4:4:4/4:2:2 to

YCC 4:2:0 color space conversions implemented

 Digital audio supports up to 8 channel LPCM(16/20/24

bit) with sample rate up to 192kHz, compressed audio

formats (AC3,DTS,DTS-HD MA, and Dolby MAT),

HBR audio formats with frame rate up to 1536kHz, and

3D audio format with sample rate up to 192kHz

 USB Type-C DisplayPort Alt-Mode to HDMI

2.1/2.0/1.4a protocol converter ready

 Integrated Ra, Rd and Rp resistors for DFP/UFP to

identify connection

 Seamless switch between Type-C SBU and DisplayPort

AUX Channel

 USB Power Delivery 3.1 on CC communication

 Fast VBUS Voltage detection module integrated to

support FRS and Charge Through functions

 Built-in USB Billboard Class 1.2.2 and USB 2.0 PHY

to support DisplayPort Alt-mode

 Embedded Microcontroller, ROM and EDID Buffer

 Firmware update through Chrontel proprietary

technologies

 Configurable Power Saving mode and low stand-by

current

 RoHS compliant and Halogen free package

 Offered in 68 pin QFN package

Upstream ( USB-C / DP )

 USB Type-C port compliant with USB Type-C Cable

and Connector Specification revision 2.0

 USB PD 3.1 compliant

 Compliant with DisplayPort Alternate Mode on USB

Type C standard

 Compliant with VESA DisplayPort Specification

version 1.4 and and Embedded DisplayPort (eDP)

Specification version 1.4

 Supports up to 4 Main Link Lanes at 1.62Gbps,2.7Gbps

(HBR), 5.4Gbps (HBR2) and 8.1Gbps (HBR3) link rate

 Automotive DP input signal detection and Lane swap

Chrontel’s CH7218A is a low-cost, low-power

semiconductor device that translates the DisplayPort

signal to HDMI 2.1 through the USB Type-C connector.

This innovative USB Type-C based DisplayPort receiver

with a high performance DSC decoder, an integrated

HDMI 2.1 Transmitter is specially designed to target the

USB Type-C to HDMI 2.1 converter, adopter and

docking device. Through the CH7218A’s advanced

decoding / encoding algorithm, the input DisplayPort

high-speed serialized multimedia data can be seamlessly

converted to HDMI/DVI output.

The CH7218A’s DP receiver is compliant with the

DisplayPort Specification 1.4 and Embedded DisplayPort

(eDP) Specification version 1.4. With sophisticated

DisplayPort signal detection and the Lane Swap/AUX

polarity inversion logic, the CH7218A supports USB

Type-C cable plug orientation switch. With internal

HDCP key Integrated, the device supports HDCP 1.4 and

2.3 specifications. In the device’s receiver block, which

supports four DisplayPort Main Link Lanes input with

data rate running at 1.62Gbps, 2.7Gbps, 5.4Gbps or

8.1Gbps, and converted the input signal to HDMI output

up to 8Kx4k@60Hz or 4K2K@120Hz in Fixed Rate Link

mode. Leveraging the USB Power Delivery control logic,

the USB billboard module for USB device indentify and

DisplayPort’s Link Training routine, the CH7218A is

capable of instantly bring up the video display to the

HDMI 2.1 TV/Monitor when the initialization process is

completed.

The CH7218A also supports up to 8-channel audio input

from DP Rx and output from HDMI Tx with sample rate

up to 192 KHz. Available audio bandwidth depends on

the pixel clock frequency, the video format timing, and

whether or not content protection re-synchronization is

needed.

With sophisticated MCU and the On Chip Flash,

CH7218A support auto-boot and EDID buffer.

Leveraging the firmware auto-loaded from the embedded

ROM, CH7218A can support DP input detection, HDMI

connection detection, and determine to enter into Power

saving mode automatically.

supported for compliance with the USB type C cable

plug orientation switch

 RGB at 6/8/10/12 bpc, YCbCr4:4:4 and YCbCr4:2:2

/4:2:0 at 8/10/12 bpc input formats supported

 Fast and full Link Training for embedded DisplayPort

system

 Supports eDP Authentication: Alternative Scramble

Seed Reset and Alternative Framing

 Supports Spread Spectrum Clocking (de-spreading) for

EMI reduction

 Forward Error Correction supported

 Adaptive-Sync supported

 Programmable/Adaptive equalizer to compensate for

Cable, PCB and/or connector losses

 1/2/4/8 Slices DSC decoding supported.

Downstream ( HDMI )

 HDMI transmitter compliant with HDMI specification

version 2.1

 Supports 4 Main Link Lane up to 12 Gbps Fixed Rate

Link (FRL) data rate for video timing up to

8Kx4k@60Hz, 4K2K@120Hz, 4K2K@144Hz or

4K2K@240Hz

 Supports up to HDMI 6Gbps TMDS data rate or 600

MHz TMDS clock for video transport

 RGB at 6/8/10/12 bpc, YCbCr 4:4:4 / 4:2:2 / 4:2:0 at

8/10/12 bpc output formats supported

 Progressive 3D video formats supported

 Variable Refresh Rate supported

 DSC pass-through supported

 SCDC supported on HDMI DDC

 FRL link training supported

 CEC tunneling over AUX supported

 Automatic Low Latency Mode supported

 Graphic test pattern generator integrated

APPLICATION

 Onboard DP to HDMI 2.1 conversion

 USB Type C to HDMI cable/Adapter/Docking Station

 USB Type C Receptacle display device