CH7211

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Features

·         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

·         DisplayPort receiver auto equalization supported for the compensation of input signal attenuation

·         Support Spread Spectrum Clocking (de-spreading) for EMI reduction

·         Fast and full Link Training for embedded DisplayPort system

·         Support eDP Authentication: Alternative Scramble Seed Reset and Alternative Framing

·         USB Power Delivery control module supported with HPD to PD converter integrated

·         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

·         RGB to YCC conversion and YCC 4:4:4/4:2:2 to YCC 4:2:0 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

·         IIC-over-AUX transaction supported

·         CEC tunneling over AUX is  supported

·         Programmable equalizer

·         Programmable Pre-Emphasis on output driver supported

·         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 input supported with audio sampling rate up to 192KHz

·         Embedded MCU to handle the control logic

·         USB billboard module integrated

·         USB 2.0 PHY supported with internal switch for data/file transport

·         Support device boot up by loading firmware from On Chip Flash automatically,  integrated EDID Buffer

·         DP AUX channel and IIC slave interface are available for firmware update and debug

·         Support Auto Power Saving mode and low stand-by current

·         Anti-back drive support

·         Low power architecture

·         RoHS compliant and Halogen free package

·         HBM 2KV ESD performance

·         Offered in 64 pin QFN package




Describe

Chrontel’s CH7211 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 CH7211’s advanced decoding / encoding algorithm, the input DisplayPort high-speed serialized multimedia data can be seamlessly converted to HDMI/DVI output.

The CH7211’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 CH7211 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 CH7211 is capable of instantly bring up the video display to the HDMI/DVI TV/Monitor when the initialization process is completed.

The CH7211 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 On Chip Flash, CH7211 support auto-boot and EDID buffer. Leveraging the firmware auto-loaded from Flash, CH7211 can support DP input detection, HDMI connection detection, and determine to enter into Power saving mode automatically.

Structure diagram

Data sheet

Application Desc

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

·         Handheld/Portable Device

Technical Report

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Specifications

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About Chrontel Overview Chrontel, headquartered in San Jose, California, is a privately-held company with over 130 employees worldwide. Incorporated in 1986, the company develops and markets mixed-signal integrated circuits for the PC, display and consumer mark...

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