Chrontel’s CH7107B is a low-cost, low-power semiconductor device that consists of HDMI receiver, three separate 9-bit video Digital-to-Analog Converters (DACs), SDTV encoder and audio encoder, which can convert HDMI signals into SDTV 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, CH7107B supports auto-boot and EDID buffer. Leveraging the firmware auto loaded from the embedded flash, CH7107B can support HDMI input detection, DAC connection detection and determine to enter into Power saving mode automatically.

PCB Layout and Design Guide for CH7107B HDMI To SDTV Converter, AN-B032 (Rev0.2)

  Refer to the AN-B037 for industrial products in detail

Input Interface  HDMI, DVI

Output Interface  CVBS  Audio Interface IIS, SPDIF Output

Other features  No 

Package Type  QFN40

Part Number Package Type Operating Temperature RangeMinimum Order Quantity

CH7107B-BF  40 QFN, Lead-freeCommercial : 0 to 70°C490/Tray

CH7107B-BFI 40 QFN, Lead-freeIndustrial : -40 to 85°C490/Tray