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  • HDMI Receiver compliant with HDMI 1.4 specification

  • Support multiple output formats:

    • HDTV format (YPbPr output) for 480p, 576p, 720p, 1080i and 1080P

    • Analog RGB output for VGA with Triple 9-bit DAC up to 200MHz pixel rate. Sync signals can be provided in separated or composite manner. Support VESA and CEA timing standards up to UXGA and 1920x1080@60Hz


  • On-chip Audio encoder which support 2 channel IIS/S/PDIF audio output

  • VGA output is compliant with VESA VSIS v1r2 specification

  • MCU embedded to handle the control logic

  • Support device boot up by automatically loading firmware from on-chip flash

  • Integrated EDID Buffer

  • Crystal Free architecture

  • TV/VGA connection detection supported

  • HDMI input detection supported

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

  • Support RGB to YCC conversion in ITU-R BT.601 and 709 color space

  • IIC slave interface and HDMI DDC interface are available for debug and firmware update.

  • Low power architecture

  • RoHS compliant and Halogen free package

  • Offered in 40-Pin QFN package (5 x 5 mm)


Chrontel’s CH7104B is a low-cost, low-power semiconductor device that consists of HDMI receiver, three separate 9-bit video Digital-to-Analog Converters (DACs), HDTV encoder, and audio encoder, which can convert HDMI signals into HDTV/VGA outputs with IIS or SPDIF audio output.

The HDMI Receiver integrated is compliant with HDMI 1.4b. With sophisticated MCU and the on-chip flash, CH7104B support auto-boot and EDID buffer. Leveraging the firmware auto loaded from the embedded flash, CH7104B can support HDMI input detection, DAC connection detection and determine to enter into Power saving mode automatically.

Structure diagram

Application Desc

  Refer to the AN-B037 for industrial products in detail

Technical Report



Input Interface   HDMI, DVI

Output Interface   VGA, YPbPr

Audio Interface    IIS, SPDIF Output

Other features    No

Package Type    QFN40


Part NumberPackage Type Operating Temperature Range Minimum Order Quantity

CH7104B-BF  40 QFN, Lead-freeCommercial : 0 to 70°C490/Tray

CH7104B-BFI  40 QFN, Lead-freeIndustrial : -40 to 85°C490/Tray




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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