CH7211A
Brief Datasheet
209-1000-070 Rev 1.1 2018-11-19 1
Chrontel
CH7211A DisplayPort to HDMI 2.0 Converter on USB Type C
FEATURES
GENERAL DESCRIPTION
Compliant with DisplayPort Alternate Mode on USB
Type C standard
Compliant with DisplayPort Specification version 1.3
and Embedded DisplayPort (eDP) Specification version
1.4
Support up to 4 Main Link Lanes at 1.62Gbps,2.7Gbps
(HBR) or 5.4Gbps (HBR2) link rate
Automotive DP input signal detection and Lane swap
supported for compliance with the USB type C cable
plug orientation switch
DP_BR signaling modes supported
Programmable DisplayPort receiver equalization
supported for the compensation of input signal
attenuation
Support Spread Spectrum Clocking (de-spreading) for
EMI reduction
Support Fast and full Link Training
Support eDP Authentication: Alternative Scramble Seed
Reset and Alternative Framing
HDMI transmitter compliant with HDMI specification
version 2.0 and DVI specification version 1.0
HDMI transmitter supports up to 6.0Gbps data rate for
video timing of 4Kx2K@60Hz
HDMI 3D dual view and 3D audio are supported
High-Dynamic-Range (HDR) display are supported
YCC 4:4:4/4:2:2 to YCC 4:2:2/4:2:0,Y-only(Gray
display) conversion are supported
HDCP engine compliant with HDCP 2.2 specification
with internal HDCP Keys
HDCP 2.2 repeater supported
Active DDC buffer and related control register
integrated
SCDC supported on HDMI DDC
IIC-over-AUX transaction supported
CEC tunneling over AUX is supported
AUX CH polarity inversion supported for USB type C
cable plug orientation switch
Programmable Pre-Emphasis on output driver supported
Support 2 USB Type-C ports that are compliant with
USB Type-C Cable and Connector Specification
revision 1.3.
Compliant with USB Power Delivery Specification
Revision 3.0, Version 1.1, with USB Power Delivery
BMC transceiver integrated on each USB Type-C port
Integrated Ra, Rd and Rp for USB Type-C
On-chip Audio Decoder which support 8 channel Audio
input from DP Rx and output from HDMI Tx with
sample rate up to 192KHz
SPDIF/IIS input supported with audio sampling rate up
to 192KHz
Embedded MCU to handle the control logic
Full speed USB billboard module integrated
USB 2.0 PHY supported with internal switch for
Chrontel’s CH7211A is a low-cost, low-power
semiconductor device that translates the DisplayPort
signal to HDMI/DVI through the USB Type-C connector.
This innovative USB Type-C based DisplayPort receiver
with an integrated HDMI Transmitter is specially
designed to target the USB Type-C to HDMI converter,
adopter and docking device. Through the CH7211A’s
advanced decoding / encoding algorithm, the input
DisplayPort high-speed serialized multimedia data can be
seamlessly converted to HDMI/DVI output.
The CH7211A’s DP/eDP receiver is compliant with the
DisplayPort Specification 1.3 and Embedded DisplayPort
(eDP) Specification version 1.4. With sophisticated
DisplayPort signal detection and the Lane Swap/AUX
polarity inversion logic, the CH7211A supports USB
Type-C cable plug orientation switch. With internal
HDCP key Integrated, the device support HDCP 2.2
specifications. In the device’s receiver block, which
supports four DisplayPort Main Link Lanes input with
data rate running at 1.62Gbps, 2.7Gbps or 5.4Gbps, and
converted the input signal to HDMI output up to
4Kx2k@60Hz. Leveraging the USB Power Delivery
control logic, the USB billboard module for USB device
indentify and DisplayPort’s unique source/sink “Link
Training” routine, the CH7211A is capable of instantly
bring up the video display to the HDMI/DVI TV/Monitor
when the initialization process is completed.
The CH7211A also supports up to 8-channel audio input
from either DP Rx or SPDIF port 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 embedded EEPROM,
CH7211A support auto-boot and EDID buffer.
Leveraging the firmware auto-loaded from the embedded
EEPROM, CH7211A can support DP input detection,
HDMI connection detection, and determine to enter into
Power saving mode automatically.
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