TV HDMI / MHL Receivers

Display premium HD video content protected using HDCP 2.2 at up to 4K Ultra HD with enhanced audio

Security guaranteed – Support for HDCP 2.2 premium content protection enables premium 4K Ultra HD video to be securely transmitted and displayed.

Connectivity compatibility – Backward compatibility with MHL 1.0, MHL 2.0, HDMI 1.4 and HDMI 2.0 specifications ensures older source devices are supported.


  • Support for Ultra HD 4K and 1080p HD resolutions
  • Selection of multiple inputs
  • 36-bit display interface
  • Integrated CEC processor
  • Advanced sleep modes

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HDMI Receiver SiI9127A SiI9679 SiI1127A
HDMI Input 2 HDMI2.0, 300 MHz 2
MHL Input MHL 3.0
RGB/YCbCr Output Up to 36-bit Up to 36-bit
Max Video Resolution 1080p60 36-Bit 4K60 4:2:0 1080p60 36-Bit
HDCP 1.4 support Check Mark Check Mark
HDCP 2.2 support Check Mark
Pre-programmed HDCP keys Check Mark Check Mark
S/PDIF Check Mark Check Mark Check Mark
High Bit Rate Audio (Dolby TrueHD, DTS-HD) Check Mark Check Mark Check Mark
I2C Interface Check Mark Check Mark Check Mark
Integrated NVRAM EDID Check Mark SRAM EDID Check Mark
Package 128-pin TQFP 76-pin QFN 128-pin TQFP
Package Size 14 x 14 mm 9 x 9 mm 14 x 14 mm
Starter Kit CP9127HDMI Yes CP9127HDMI


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Quick Reference
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SiI9127A/SiI1127A HDMI Receiver with Deep Color Output
DS1059 Rev. D 5/31/2017 PDF 1.9 MB

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