Toshiba Introduces the Industry's First Bridge ICs That Convert 4K HDMI(R) to MIPI(R) CSI-2

Supports High Resolution Video Processing for Set Top Boxes and Smart TVs

TOKYO — (BUSINESS WIRE) — March 17, 2014Toshiba Corporation (TOKYO:6502) today announced the launch of “TC358840XBG”, the industry’s first1 interface bridge IC that converts 4K ultra HD video stream from HDMI® to MIPI® CSI-2 without compression and deterioration. Sample shipments will start in April, with mass production scheduled to start in September, 2014.

Toshiba: The industry's first interface bridge IC converting 4K ultra HD video stream from HDMI(R) t ...

Toshiba: The industry's first interface bridge IC converting 4K ultra HD video stream from HDMI(R) to MIPI(R) CSI-2 (Photo: Business Wire)

The new IC splits 4K ultra HD (3840 x 2160) video stream into the left and right images, and outputs from dual MIPI® CSI-2 interfaces. It supports conversion of high resolution 4K ultra HD video at 30 fps, contributing to high quality video processing.

The IC also supports conversion of HDMI® audio input stream to I2S, TDM, or MIPI SLIMbus® (Serial Low-power Inter-chip Media Bus), allowing use in a wide range of applications.

Key Features

  • HDMI® 1.4 RX support
    • 4K Ultra HD (3840x2160) @30fps (RGB, YCbCr444:24bpp, YCbCr422: 24bpp)
    • HDCP 1.3
    • 3D support
  • Availability of any of the three audio interfaces: I2S, TDM or SLIMbus® (Serial Low-power Inter-chip Media Bus)
  • Maximum 1Gbps/lane link speed MIPI® CSI-2 interface
  • Maximum 297MHz HDMI® clock speed


Set top boxes, smart TVs, smart monitors, and digital media adapters


Main Specifications

Part Number   TC358840XBG
Input Interface

HDMI® 1.4
Clock speed: 297MHz (Max.)

Output Video Interface Dual interfaces of MIPI® CSI-2 4 lanes (Up to 1Gbps/lane)
Output Audio Interface I2S, TDM, MIPI SLIMbus®
Source Voltage

MIPI®: 1.2V
HDMI®: 3.3V
I/O: 1.8V and 3.3V


FBGA80 (7mm×7mm, 0.65mm pitch)


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