Highly integrated TW8844 can instantly display rear view camera live video, enabling the ability to prevent reversing accidents to exceed 4 times the industry standard.
The world's leading semiconductor solution Supplier resili Electronics Co., Ltd. announced today that the introduction of the industry's first high-definition LCD video processor designed for automotive applications with the latest generation of car SOCs. --- TW8844. Highly integrated TW8844 is based on the technology of the leading in Intersil industry, which is the first in the fields such as car information and display systems. It is the first high-definition (HD) 1080p LCD video with analog video decoder, two scales and MIPI-CSI2 SOC interfaces. processor.
The TW8844 provides the high reliability required for automakers to ensure that the rear view camera is compliant with the US Federal Motor Vehicle Safety Standard (FMVSS-111) and prevents casualties from preventing cars. TW8844 can help achieve transition from analog to digital camera systems, and support a number of video interfaces and maximum 1920 x 1080 full HD LCD panel resolution. The TW8844 LCD video processor is an ideal choice for the application of the control station / audio body, full-screen rear view mirror, combined instrument display and double-headed seat.
Global car manufacturers have begun to equip the new models. According to the Requirements of the American Children's Traffic Safety, the US National Highway Traffic Safety Administration issued regulations in March 2014, requiring automotive manufacturers to install "Tailing Technology" with a car with a weight of less than 10,000 pounds (REAR Visibility " TECHNOLOGY). The new FMVSS-111 regulations stipulate that the driver must be able to see the rear area of the vehicle when the driver is reversed, and the range of blind zones minimizes. The law aims to reduce casualties caused by reversing accidents (many of them involving children). According to the requirements of the FMVSS-111 law, from May 2018, all new cars sold in the United States must be equipped with a rear-reverse camera, and the rear view camera video must start displaying within 2 seconds after the driver is inserted.
TW8844 video processor with MIPI-CSI2 and the TW8845 video processor with BT.656 output exceeds the requirements of the FMVSS-111 method, and can display a graphic superposed live video within less than 0.5 seconds after the car ignition . The TW884X provides a robust rearview camera architecture to solve the currently more complex center console system inherent fast start-up reliability issues. The current car audio body is prone to the operating system (OS) software freezing and hang, causing freezing of the image, or hinders the rear view camera to display live video. Since the operating system of SOC is increasingly complex, software freezing and hanging problems become more common. The TW884X can determine if the SOC and the camera output can be determined if it is frozen or wrong, thereby eliminating this problem. If TW884X detects any problems, it will bypass SOC and instantly display the rear view camera video.
Philip Chesley, Advanced Vice President of INTERSIL, said: "The freezing detection function of TW884X uses a hard connection method, and the interrupt signal can be triggered when the threshold violation is generated, to ensure that the car rear view camera meets the FMVSS-111 regulatory requirements, and instantly display live video In addition, the rearview camera bypass architecture of the TW884X enables the camera to the display signal path to the information entertainment system, helping the car manufacturer easily reaches the ISO 26262 functional safety rating criterion for the camera system. "
Main features and specifications of the TW8844 and TW8845 video processors
• Supports a variety of video input from analog or digital HD camera:
O 10-bit ADC NTSC / PAL analog video decoder supports differential, pseudo differential, and single-ended composite video input (two differentials or four single-ended), built-in, short-circuit diagnostics, and two independent numbers. RGB input port, each port has a maximum 24-bit RGB @ 160MHz (1080P);
o Two LVDS OpenLDI input ports (with the second DRGB input shared pin), support single channel or dual channel input mode, single channel mode 100MHz (max), 160MHz in dual channel mode;
o Supports a full HD input (1080P) or two HD inputs (720P);
• Provide system flexibility to drive most LCD panels:
o For the LCD path of TTL / TCON, up to 24-bit DRGB, 160MHz (max);
o LVDS OpenLDI: Dual Channel; 100MHz per channel in single-channel mode, 160MHz in dual channel mode;
o TW8844 supports 4 channels (Lane) MIPI-CSI2 output, maximum resolution 1080p, maximum rate 1GB / channel
o TW8845 supports the SOC's BT.656 output, maximum resolution 720p
• Two input measuring engines have freezing / abnormal image detection diagnostics for monitoring input from SOC and cameras.
• EEPROM Quick Start Allow Register Programming, without external microcontroller
• Two separate H / V scales support 1080P (1920 x 1080) maximum output resolution, allowing two different input sources to be handled simultaneously, and output different data to the SOC and the display, or drive simultaneously with different content Two displays.
• Automatic contrast adjustment (ACA), white balance and gamma correction optimize video quality.
• Smoothing switching makes no flash when switching various input sources
• AEC-Q100, 2 level certification, -40 ° C to + 105 ° C operating temperature range
TW8844 and TW8845 can be combined with Rissa Electronics R-Car SOC Series, and ISL78302 Dual LDO, ISL78322 Dual 2A / 1.7A Synchronous Buck Regulator and ISL78228 Dual 800mA Synchronous Buck Regulator Combined with TW884X Other key components on the SOC and in-vehicle information entertainment system are powered.
Original link: https://www.eeboard.com/news/intersil-3/3/3/3/
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